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cli.test: colorize the success/failure

Browse source 
updating and adding vendored source to do it

Signed-off-by: Vincent Batts <vbatts@hashbangbash.com>
This commit is contained in:
Vincent Batts 2018-08-19 18:34:53 -04:00
parent 03270d3d9e
commit 37d776ac40
Signed by: vbatts
GPG key ID: 10937E57733F1362
408 changed files with 170562 additions and 132 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

14
glide.lock generated
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@ -1,8 +1,10 @@
hash: 72477bc1ec8c50d432740cbf3940cae19387d596c02f1046c7e989458462e536
updated: 2017-10-20T11:31:42.730083725+02:00
hash: 8b0df7f603e6b580aa2640d99d3fa7430198f7db89321ff2abf76efa969d14c2
updated: 2018-08-20T07:56:40.333174254-04:00
imports:
- name: github.com/fatih/color
version: 5b77d2a35fb0ede96d138fc9a99f5c9b6aef11b4
- name: github.com/sirupsen/logrus
version: f006c2ac4710855cf0f916dd6b77acf6b048dc6e
version: 3e01752db0189b9157070a0e1668a620f9a85da2
- name: golang.org/x/crypto
version: 1351f936d976c60a0a48d728281922cf63eafb8d
subpackages:
@ -12,4 +14,8 @@ imports:
version: 8dbc5d05d6edcc104950cc299a1ce6641235bc86
subpackages:
- unix
testImports: []
testImports:
- name: github.com/davecgh/go-spew
version: 8991bc29aa16c548c550c7ff78260e27b9ab7c73
subpackages:
- spew

2
glide.yaml
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@ -12,3 +12,5 @@ import:
version: 8dbc5d05d6edcc104950cc299a1ce6641235bc86
subpackages:
- unix
- package: github.com/fatih/color
version: ^1.6.0

10
test/cli.go
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@ -7,10 +7,14 @@ import (
"fmt"
"os"
"os/exec"
"github.com/fatih/color"
)
func main() {
flag.Parse()
green := color.New(color.FgGreen).SprintFunc()
red := color.New(color.FgRed).SprintFunc()
failed := 0
for _, arg := range flag.Args() {
@ -22,12 +26,12 @@ func main() {
cmd.Stdout = os.Stdout
if err := cmd.Run(); err != nil {
failed++
fmt.Fprintf(os.Stderr, "FAILED: %s\n", arg)
fmt.Fprintf(os.Stderr, red("FAILED: %s\n"), arg)
}
}
if failed > 0 {
fmt.Fprintf(os.Stderr, "%d FAILED tests\n", failed)
fmt.Fprintf(os.Stderr, red("%d FAILED tests\n"), failed)
os.Exit(1)
}
fmt.Fprintf(os.Stdout, "SUCCESS: no cli tests failed\n")
fmt.Fprintf(os.Stdout, green("SUCCESS: no cli tests failed\n"))
}

22
vendor/github.com/davecgh/go-spew/.gitignore generated vendored Normal file
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@ -0,0 +1,22 @@
# Compiled Object files, Static and Dynamic libs (Shared Objects)
*.o
*.a
*.so
# Folders
_obj
_test
# Architecture specific extensions/prefixes
*.[568vq]
[568vq].out
*.cgo1.go
*.cgo2.c
_cgo_defun.c
_cgo_gotypes.go
_cgo_export.*
_testmain.go
*.exe

28
vendor/github.com/davecgh/go-spew/.travis.yml generated vendored Normal file
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language: go
go_import_path: github.com/davecgh/go-spew
go:
- 1.6.x
- 1.7.x
- 1.8.x
- 1.9.x
- 1.10.x
- tip
sudo: false
install:
- go get -v github.com/alecthomas/gometalinter
- gometalinter --install
script:
- export PATH=$PATH:$HOME/gopath/bin
- export GORACE="halt_on_error=1"
- test -z "$(gometalinter --disable-all
--enable=gofmt
--enable=golint
--enable=vet
--enable=gosimple
--enable=unconvert
--deadline=4m ./spew | tee /dev/stderr)"
- go test -v -race -tags safe ./spew
- go test -v -race -tags testcgo ./spew -covermode=atomic -coverprofile=profile.cov
after_success:
- go get -v github.com/mattn/goveralls
- goveralls -coverprofile=profile.cov -service=travis-ci

15
vendor/github.com/davecgh/go-spew/LICENSE generated vendored Normal file
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@ -0,0 +1,15 @@
ISC License
Copyright (c) 2012-2016 Dave Collins <dave@davec.name>
Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

201
vendor/github.com/davecgh/go-spew/README.md generated vendored Normal file
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go-spew
=======
[![Build Status](https://img.shields.io/travis/davecgh/go-spew.svg)](https://travis-ci.org/davecgh/go-spew)
[![ISC License](http://img.shields.io/badge/license-ISC-blue.svg)](http://copyfree.org)
[![Coverage Status](https://img.shields.io/coveralls/davecgh/go-spew.svg)](https://coveralls.io/r/davecgh/go-spew?branch=master)
Go-spew implements a deep pretty printer for Go data structures to aid in
debugging. A comprehensive suite of tests with 100% test coverage is provided
to ensure proper functionality. See `test_coverage.txt` for the gocov coverage
report. Go-spew is licensed under the liberal ISC license, so it may be used in
open source or commercial projects.
If you're interested in reading about how this package came to life and some
of the challenges involved in providing a deep pretty printer, there is a blog
post about it
[here](https://web.archive.org/web/20160304013555/https://blog.cyphertite.com/go-spew-a-journey-into-dumping-go-data-structures/).
## Documentation
[![GoDoc](https://img.shields.io/badge/godoc-reference-blue.svg)](http://godoc.org/github.com/davecgh/go-spew/spew)
Full `go doc` style documentation for the project can be viewed online without
installing this package by using the excellent GoDoc site here:
http://godoc.org/github.com/davecgh/go-spew/spew
You can also view the documentation locally once the package is installed with
the `godoc` tool by running `godoc -http=":6060"` and pointing your browser to
http://localhost:6060/pkg/github.com/davecgh/go-spew/spew
## Installation
```bash
$ go get -u github.com/davecgh/go-spew/spew
```
## Quick Start
Add this import line to the file you're working in:
```Go
import "github.com/davecgh/go-spew/spew"
```
To dump a variable with full newlines, indentation, type, and pointer
information use Dump, Fdump, or Sdump:
```Go
spew.Dump(myVar1, myVar2, ...)
spew.Fdump(someWriter, myVar1, myVar2, ...)
str := spew.Sdump(myVar1, myVar2, ...)
```
Alternatively, if you would prefer to use format strings with a compacted inline
printing style, use the convenience wrappers Printf, Fprintf, etc with %v (most
compact), %+v (adds pointer addresses), %#v (adds types), or %#+v (adds types
and pointer addresses):
```Go
spew.Printf("myVar1: %v -- myVar2: %+v", myVar1, myVar2)
spew.Printf("myVar3: %#v -- myVar4: %#+v", myVar3, myVar4)
spew.Fprintf(someWriter, "myVar1: %v -- myVar2: %+v", myVar1, myVar2)
spew.Fprintf(someWriter, "myVar3: %#v -- myVar4: %#+v", myVar3, myVar4)
```
## Debugging a Web Application Example
Here is an example of how you can use `spew.Sdump()` to help debug a web application. Please be sure to wrap your output using the `html.EscapeString()` function for safety reasons. You should also only use this debugging technique in a development environment, never in production.
```Go
package main
import (
"fmt"
"html"
"net/http"
"github.com/davecgh/go-spew/spew"
)
func handler(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "text/html")
fmt.Fprintf(w, "Hi there, %s!", r.URL.Path[1:])
fmt.Fprintf(w, "<!--\n" + html.EscapeString(spew.Sdump(w)) + "\n-->")
}
func main() {
http.HandleFunc("/", handler)
http.ListenAndServe(":8080", nil)
}
```
## Sample Dump Output
```
(main.Foo) {
unexportedField: (*main.Bar)(0xf84002e210)({
flag: (main.Flag) flagTwo,
data: (uintptr) <nil>
}),
ExportedField: (map[interface {}]interface {}) {
(string) "one": (bool) true
}
}
([]uint8) {
00000000 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f 20 |............... |
00000010 21 22 23 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f 30 |!"#$%&'()*+,-./0|
00000020 31 32 |12|
}
```
## Sample Formatter Output
Double pointer to a uint8:
```
%v: <**>5
%+v: <**>(0xf8400420d0->0xf8400420c8)5
%#v: (**uint8)5
%#+v: (**uint8)(0xf8400420d0->0xf8400420c8)5
```
Pointer to circular struct with a uint8 field and a pointer to itself:
```
%v: <*>{1 <*><shown>}
%+v: <*>(0xf84003e260){ui8:1 c:<*>(0xf84003e260)<shown>}
%#v: (*main.circular){ui8:(uint8)1 c:(*main.circular)<shown>}
%#+v: (*main.circular)(0xf84003e260){ui8:(uint8)1 c:(*main.circular)(0xf84003e260)<shown>}
```
## Configuration Options
Configuration of spew is handled by fields in the ConfigState type. For
convenience, all of the top-level functions use a global state available via the
spew.Config global.
It is also possible to create a ConfigState instance that provides methods
equivalent to the top-level functions. This allows concurrent configuration
options. See the ConfigState documentation for more details.
```
* Indent
String to use for each indentation level for Dump functions.
It is a single space by default. A popular alternative is "\t".
* MaxDepth
Maximum number of levels to descend into nested data structures.
There is no limit by default.
* DisableMethods
Disables invocation of error and Stringer interface methods.
Method invocation is enabled by default.
* DisablePointerMethods
Disables invocation of error and Stringer interface methods on types
which only accept pointer receivers from non-pointer variables. This option
relies on access to the unsafe package, so it will not have any effect when
running in environments without access to the unsafe package such as Google
App Engine or with the "safe" build tag specified.
Pointer method invocation is enabled by default.
* DisablePointerAddresses
DisablePointerAddresses specifies whether to disable the printing of
pointer addresses. This is useful when diffing data structures in tests.
* DisableCapacities
DisableCapacities specifies whether to disable the printing of capacities
for arrays, slices, maps and channels. This is useful when diffing data
structures in tests.
* ContinueOnMethod
Enables recursion into types after invoking error and Stringer interface
methods. Recursion after method invocation is disabled by default.
* SortKeys
Specifies map keys should be sorted before being printed. Use
this to have a more deterministic, diffable output. Note that
only native types (bool, int, uint, floats, uintptr and string)
and types which implement error or Stringer interfaces are supported,
with other types sorted according to the reflect.Value.String() output
which guarantees display stability. Natural map order is used by
default.
* SpewKeys
SpewKeys specifies that, as a last resort attempt, map keys should be
spewed to strings and sorted by those strings. This is only considered
if SortKeys is true.
```
## Unsafe Package Dependency
This package relies on the unsafe package to perform some of the more advanced
features, however it also supports a "limited" mode which allows it to work in
environments where the unsafe package is not available. By default, it will
operate in this mode on Google App Engine and when compiled with GopherJS. The
"safe" build tag may also be specified to force the package to build without
using the unsafe package.
## License
Go-spew is licensed under the [copyfree](http://copyfree.org) ISC License.

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vendor/github.com/davecgh/go-spew/cov_report.sh generated vendored Normal file
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#!/bin/sh
# This script uses gocov to generate a test coverage report.
# The gocov tool my be obtained with the following command:
# go get github.com/axw/gocov/gocov
#
# It will be installed to $GOPATH/bin, so ensure that location is in your $PATH.
# Check for gocov.
if ! type gocov >/dev/null 2>&1; then
echo >&2 "This script requires the gocov tool."
echo >&2 "You may obtain it with the following command:"
echo >&2 "go get github.com/axw/gocov/gocov"
exit 1
fi
# Only run the cgo tests if gcc is installed.
if type gcc >/dev/null 2>&1; then
(cd spew && gocov test -tags testcgo | gocov report)
else
(cd spew && gocov test | gocov report)
fi

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vendor/github.com/davecgh/go-spew/spew/bypass.go generated vendored Normal file
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@ -0,0 +1,145 @@
// Copyright (c) 2015-2016 Dave Collins <dave@davec.name>
//
// Permission to use, copy, modify, and distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
// NOTE: Due to the following build constraints, this file will only be compiled
// when the code is not running on Google App Engine, compiled by GopherJS, and
// "-tags safe" is not added to the go build command line. The "disableunsafe"
// tag is deprecated and thus should not be used.
// Go versions prior to 1.4 are disabled because they use a different layout
// for interfaces which make the implementation of unsafeReflectValue more complex.
// +build !js,!appengine,!safe,!disableunsafe,go1.4
package spew
import (
"reflect"
"unsafe"
)
const (
// UnsafeDisabled is a build-time constant which specifies whether or
// not access to the unsafe package is available.
UnsafeDisabled = false
// ptrSize is the size of a pointer on the current arch.
ptrSize = unsafe.Sizeof((*byte)(nil))
)
type flag uintptr
var (
// flagRO indicates whether the value field of a reflect.Value
// is read-only.
flagRO flag
// flagAddr indicates whether the address of the reflect.Value's
// value may be taken.
flagAddr flag
)
// flagKindMask holds the bits that make up the kind
// part of the flags field. In all the supported versions,
// it is in the lower 5 bits.
const flagKindMask = flag(0x1f)
// Different versions of Go have used different
// bit layouts for the flags type. This table
// records the known combinations.
var okFlags = []struct {
ro, addr flag
}{{
// From Go 1.4 to 1.5
ro: 1 << 5,
addr: 1 << 7,
}, {
// Up to Go tip.
ro: 1<<5 | 1<<6,
addr: 1 << 8,
}}
var flagValOffset = func() uintptr {
field, ok := reflect.TypeOf(reflect.Value{}).FieldByName("flag")
if !ok {
panic("reflect.Value has no flag field")
}
return field.Offset
}()
// flagField returns a pointer to the flag field of a reflect.Value.
func flagField(v *reflect.Value) *flag {
return (*flag)(unsafe.Pointer(uintptr(unsafe.Pointer(v)) + flagValOffset))
}
// unsafeReflectValue converts the passed reflect.Value into a one that bypasses
// the typical safety restrictions preventing access to unaddressable and
// unexported data. It works by digging the raw pointer to the underlying
// value out of the protected value and generating a new unprotected (unsafe)
// reflect.Value to it.
//
// This allows us to check for implementations of the Stringer and error
// interfaces to be used for pretty printing ordinarily unaddressable and
// inaccessible values such as unexported struct fields.
func unsafeReflectValue(v reflect.Value) reflect.Value {
if !v.IsValid() || (v.CanInterface() && v.CanAddr()) {
return v
}
flagFieldPtr := flagField(&v)
*flagFieldPtr &^= flagRO
*flagFieldPtr |= flagAddr
return v
}
// Sanity checks against future reflect package changes
// to the type or semantics of the Value.flag field.
func init() {
field, ok := reflect.TypeOf(reflect.Value{}).FieldByName("flag")
if !ok {
panic("reflect.Value has no flag field")
}
if field.Type.Kind() != reflect.TypeOf(flag(0)).Kind() {
panic("reflect.Value flag field has changed kind")
}
type t0 int
var t struct {
A t0
// t0 will have flagEmbedRO set.
t0
// a will have flagStickyRO set
a t0
}
vA := reflect.ValueOf(t).FieldByName("A")
va := reflect.ValueOf(t).FieldByName("a")
vt0 := reflect.ValueOf(t).FieldByName("t0")
// Infer flagRO from the difference between the flags
// for the (otherwise identical) fields in t.
flagPublic := *flagField(&vA)
flagWithRO := *flagField(&va) | *flagField(&vt0)
flagRO = flagPublic ^ flagWithRO
// Infer flagAddr from the difference between a value
// taken from a pointer and not.
vPtrA := reflect.ValueOf(&t).Elem().FieldByName("A")
flagNoPtr := *flagField(&vA)
flagPtr := *flagField(&vPtrA)
flagAddr = flagNoPtr ^ flagPtr
// Check that the inferred flags tally with one of the known versions.
for _, f := range okFlags {
if flagRO == f.ro && flagAddr == f.addr {
return
}
}
panic("reflect.Value read-only flag has changed semantics")
}

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vendor/github.com/davecgh/go-spew/spew/bypasssafe.go generated vendored Normal file
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// Copyright (c) 2015-2016 Dave Collins <dave@davec.name>
//
// Permission to use, copy, modify, and distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
// NOTE: Due to the following build constraints, this file will only be compiled
// when the code is running on Google App Engine, compiled by GopherJS, or
// "-tags safe" is added to the go build command line. The "disableunsafe"
// tag is deprecated and thus should not be used.
// +build js appengine safe disableunsafe !go1.4
package spew
import "reflect"
const (
// UnsafeDisabled is a build-time constant which specifies whether or
// not access to the unsafe package is available.
UnsafeDisabled = true
)
// unsafeReflectValue typically converts the passed reflect.Value into a one
// that bypasses the typical safety restrictions preventing access to
// unaddressable and unexported data. However, doing this relies on access to
// the unsafe package. This is a stub version which simply returns the passed
// reflect.Value when the unsafe package is not available.
func unsafeReflectValue(v reflect.Value) reflect.Value {
return v
}

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vendor/github.com/davecgh/go-spew/spew/common.go generated vendored Normal file
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/*
* Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
package spew
import (
"bytes"
"fmt"
"io"
"reflect"
"sort"
"strconv"
)
// Some constants in the form of bytes to avoid string overhead. This mirrors
// the technique used in the fmt package.
var (
panicBytes = []byte("(PANIC=")
plusBytes = []byte("+")
iBytes = []byte("i")
trueBytes = []byte("true")
falseBytes = []byte("false")
interfaceBytes = []byte("(interface {})")
commaNewlineBytes = []byte(",\n")
newlineBytes = []byte("\n")
openBraceBytes = []byte("{")
openBraceNewlineBytes = []byte("{\n")
closeBraceBytes = []byte("}")
asteriskBytes = []byte("*")
colonBytes = []byte(":")
colonSpaceBytes = []byte(": ")
openParenBytes = []byte("(")
closeParenBytes = []byte(")")
spaceBytes = []byte(" ")
pointerChainBytes = []byte("->")
nilAngleBytes = []byte("<nil>")
maxNewlineBytes = []byte("<max depth reached>\n")
maxShortBytes = []byte("<max>")
circularBytes = []byte("<already shown>")
circularShortBytes = []byte("<shown>")
invalidAngleBytes = []byte("<invalid>")
openBracketBytes = []byte("[")
closeBracketBytes = []byte("]")
percentBytes = []byte("%")
precisionBytes = []byte(".")
openAngleBytes = []byte("<")
closeAngleBytes = []byte(">")
openMapBytes = []byte("map[")
closeMapBytes = []byte("]")
lenEqualsBytes = []byte("len=")
capEqualsBytes = []byte("cap=")
)
// hexDigits is used to map a decimal value to a hex digit.
var hexDigits = "0123456789abcdef"
// catchPanic handles any panics that might occur during the handleMethods
// calls.
func catchPanic(w io.Writer, v reflect.Value) {
if err := recover(); err != nil {
w.Write(panicBytes)
fmt.Fprintf(w, "%v", err)
w.Write(closeParenBytes)
}
}
// handleMethods attempts to call the Error and String methods on the underlying
// type the passed reflect.Value represents and outputes the result to Writer w.
//
// It handles panics in any called methods by catching and displaying the error
// as the formatted value.
func handleMethods(cs *ConfigState, w io.Writer, v reflect.Value) (handled bool) {
// We need an interface to check if the type implements the error or
// Stringer interface. However, the reflect package won't give us an
// interface on certain things like unexported struct fields in order
// to enforce visibility rules. We use unsafe, when it's available,
// to bypass these restrictions since this package does not mutate the
// values.
if !v.CanInterface() {
if UnsafeDisabled {
return false
}
v = unsafeReflectValue(v)
}
// Choose whether or not to do error and Stringer interface lookups against
// the base type or a pointer to the base type depending on settings.
// Technically calling one of these methods with a pointer receiver can
// mutate the value, however, types which choose to satisify an error or
// Stringer interface with a pointer receiver should not be mutating their
// state inside these interface methods.
if !cs.DisablePointerMethods && !UnsafeDisabled && !v.CanAddr() {
v = unsafeReflectValue(v)
}
if v.CanAddr() {
v = v.Addr()
}
// Is it an error or Stringer?
switch iface := v.Interface().(type) {
case error:
defer catchPanic(w, v)
if cs.ContinueOnMethod {
w.Write(openParenBytes)
w.Write([]byte(iface.Error()))
w.Write(closeParenBytes)
w.Write(spaceBytes)
return false
}
w.Write([]byte(iface.Error()))
return true
case fmt.Stringer:
defer catchPanic(w, v)
if cs.ContinueOnMethod {
w.Write(openParenBytes)
w.Write([]byte(iface.String()))
w.Write(closeParenBytes)
w.Write(spaceBytes)
return false
}
w.Write([]byte(iface.String()))
return true
}
return false
}
// printBool outputs a boolean value as true or false to Writer w.
func printBool(w io.Writer, val bool) {
if val {
w.Write(trueBytes)
} else {
w.Write(falseBytes)
}
}
// printInt outputs a signed integer value to Writer w.
func printInt(w io.Writer, val int64, base int) {
w.Write([]byte(strconv.FormatInt(val, base)))
}
// printUint outputs an unsigned integer value to Writer w.
func printUint(w io.Writer, val uint64, base int) {
w.Write([]byte(strconv.FormatUint(val, base)))
}
// printFloat outputs a floating point value using the specified precision,
// which is expected to be 32 or 64bit, to Writer w.
func printFloat(w io.Writer, val float64, precision int) {
w.Write([]byte(strconv.FormatFloat(val, 'g', -1, precision)))
}
// printComplex outputs a complex value using the specified float precision
// for the real and imaginary parts to Writer w.
func printComplex(w io.Writer, c complex128, floatPrecision int) {
r := real(c)
w.Write(openParenBytes)
w.Write([]byte(strconv.FormatFloat(r, 'g', -1, floatPrecision)))
i := imag(c)
if i >= 0 {
w.Write(plusBytes)
}
w.Write([]byte(strconv.FormatFloat(i, 'g', -1, floatPrecision)))
w.Write(iBytes)
w.Write(closeParenBytes)
}
// printHexPtr outputs a uintptr formatted as hexadecimal with a leading '0x'
// prefix to Writer w.
func printHexPtr(w io.Writer, p uintptr) {
// Null pointer.
num := uint64(p)
if num == 0 {
w.Write(nilAngleBytes)
return
}
// Max uint64 is 16 bytes in hex + 2 bytes for '0x' prefix
buf := make([]byte, 18)
// It's simpler to construct the hex string right to left.
base := uint64(16)
i := len(buf) - 1
for num >= base {
buf[i] = hexDigits[num%base]
num /= base
i--
}
buf[i] = hexDigits[num]
// Add '0x' prefix.
i--
buf[i] = 'x'
i--
buf[i] = '0'
// Strip unused leading bytes.
buf = buf[i:]
w.Write(buf)
}
// valuesSorter implements sort.Interface to allow a slice of reflect.Value
// elements to be sorted.
type valuesSorter struct {
values []reflect.Value
strings []string // either nil or same len and values
cs *ConfigState
}
// newValuesSorter initializes a valuesSorter instance, which holds a set of
// surrogate keys on which the data should be sorted. It uses flags in
// ConfigState to decide if and how to populate those surrogate keys.
func newValuesSorter(values []reflect.Value, cs *ConfigState) sort.Interface {
vs := &valuesSorter{values: values, cs: cs}
if canSortSimply(vs.values[0].Kind()) {
return vs
}
if !cs.DisableMethods {
vs.strings = make([]string, len(values))
for i := range vs.values {
b := bytes.Buffer{}
if !handleMethods(cs, &b, vs.values[i]) {
vs.strings = nil
break
}
vs.strings[i] = b.String()
}
}
if vs.strings == nil && cs.SpewKeys {
vs.strings = make([]string, len(values))
for i := range vs.values {
vs.strings[i] = Sprintf("%#v", vs.values[i].Interface())
}
}
return vs
}
// canSortSimply tests whether a reflect.Kind is a primitive that can be sorted
// directly, or whether it should be considered for sorting by surrogate keys
// (if the ConfigState allows it).
func canSortSimply(kind reflect.Kind) bool {
// This switch parallels valueSortLess, except for the default case.
switch kind {
case reflect.Bool:
return true
case reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Int:
return true
case reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uint:
return true
case reflect.Float32, reflect.Float64:
return true
case reflect.String:
return true
case reflect.Uintptr:
return true
case reflect.Array:
return true
}
return false
}
// Len returns the number of values in the slice. It is part of the
// sort.Interface implementation.
func (s *valuesSorter) Len() int {
return len(s.values)
}
// Swap swaps the values at the passed indices. It is part of the
// sort.Interface implementation.
func (s *valuesSorter) Swap(i, j int) {
s.values[i], s.values[j] = s.values[j], s.values[i]
if s.strings != nil {
s.strings[i], s.strings[j] = s.strings[j], s.strings[i]
}
}
// valueSortLess returns whether the first value should sort before the second
// value. It is used by valueSorter.Less as part of the sort.Interface
// implementation.
func valueSortLess(a, b reflect.Value) bool {
switch a.Kind() {
case reflect.Bool:
return !a.Bool() && b.Bool()
case reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Int:
return a.Int() < b.Int()
case reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uint:
return a.Uint() < b.Uint()
case reflect.Float32, reflect.Float64:
return a.Float() < b.Float()
case reflect.String:
return a.String() < b.String()
case reflect.Uintptr:
return a.Uint() < b.Uint()
case reflect.Array:
// Compare the contents of both arrays.
l := a.Len()
for i := 0; i < l; i++ {
av := a.Index(i)
bv := b.Index(i)
if av.Interface() == bv.Interface() {
continue
}
return valueSortLess(av, bv)
}
}
return a.String() < b.String()
}
// Less returns whether the value at index i should sort before the
// value at index j. It is part of the sort.Interface implementation.
func (s *valuesSorter) Less(i, j int) bool {
if s.strings == nil {
return valueSortLess(s.values[i], s.values[j])
}
return s.strings[i] < s.strings[j]
}
// sortValues is a sort function that handles both native types and any type that
// can be converted to error or Stringer. Other inputs are sorted according to
// their Value.String() value to ensure display stability.
func sortValues(values []reflect.Value, cs *ConfigState) {
if len(values) == 0 {
return
}
sort.Sort(newValuesSorter(values, cs))
}

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/*
* Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
package spew_test
import (
"fmt"
"reflect"
"testing"
"github.com/davecgh/go-spew/spew"
)
// custom type to test Stinger interface on non-pointer receiver.
type stringer string
// String implements the Stringer interface for testing invocation of custom
// stringers on types with non-pointer receivers.
func (s stringer) String() string {
return "stringer " + string(s)
}
// custom type to test Stinger interface on pointer receiver.
type pstringer string
// String implements the Stringer interface for testing invocation of custom
// stringers on types with only pointer receivers.
func (s *pstringer) String() string {
return "stringer " + string(*s)
}
// xref1 and xref2 are cross referencing structs for testing circular reference
// detection.
type xref1 struct {
ps2 *xref2
}
type xref2 struct {
ps1 *xref1
}
// indirCir1, indirCir2, and indirCir3 are used to generate an indirect circular
// reference for testing detection.
type indirCir1 struct {
ps2 *indirCir2
}
type indirCir2 struct {
ps3 *indirCir3
}
type indirCir3 struct {
ps1 *indirCir1
}
// embed is used to test embedded structures.
type embed struct {
a string
}
// embedwrap is used to test embedded structures.
type embedwrap struct {
*embed
e *embed
}
// panicer is used to intentionally cause a panic for testing spew properly
// handles them
type panicer int
func (p panicer) String() string {
panic("test panic")
}
// customError is used to test custom error interface invocation.
type customError int
func (e customError) Error() string {
return fmt.Sprintf("error: %d", int(e))
}
// stringizeWants converts a slice of wanted test output into a format suitable
// for a test error message.
func stringizeWants(wants []string) string {
s := ""
for i, want := range wants {
if i > 0 {
s += fmt.Sprintf("want%d: %s", i+1, want)
} else {
s += "want: " + want
}
}
return s
}
// testFailed returns whether or not a test failed by checking if the result
// of the test is in the slice of wanted strings.
func testFailed(result string, wants []string) bool {
for _, want := range wants {
if result == want {
return false
}
}
return true
}
type sortableStruct struct {
x int
}
func (ss sortableStruct) String() string {
return fmt.Sprintf("ss.%d", ss.x)
}
type unsortableStruct struct {
x int
}
type sortTestCase struct {
input []reflect.Value
expected []reflect.Value
}
func helpTestSortValues(tests []sortTestCase, cs *spew.ConfigState, t *testing.T) {
getInterfaces := func(values []reflect.Value) []interface{} {
interfaces := []interface{}{}
for _, v := range values {
interfaces = append(interfaces, v.Interface())
}
return interfaces
}
for _, test := range tests {
spew.SortValues(test.input, cs)
// reflect.DeepEqual cannot really make sense of reflect.Value,
// probably because of all the pointer tricks. For instance,
// v(2.0) != v(2.0) on a 32-bits system. Turn them into interface{}
// instead.
input := getInterfaces(test.input)
expected := getInterfaces(test.expected)
if !reflect.DeepEqual(input, expected) {
t.Errorf("Sort mismatch:\n %v != %v", input, expected)
}
}
}
// TestSortValues ensures the sort functionality for relect.Value based sorting
// works as intended.
func TestSortValues(t *testing.T) {
v := reflect.ValueOf
a := v("a")
b := v("b")
c := v("c")
embedA := v(embed{"a"})
embedB := v(embed{"b"})
embedC := v(embed{"c"})
tests := []sortTestCase{
// No values.
{
[]reflect.Value{},
[]reflect.Value{},
},
// Bools.
{
[]reflect.Value{v(false), v(true), v(false)},
[]reflect.Value{v(false), v(false), v(true)},
},
// Ints.
{
[]reflect.Value{v(2), v(1), v(3)},
[]reflect.Value{v(1), v(2), v(3)},
},
// Uints.
{
[]reflect.Value{v(uint8(2)), v(uint8(1)), v(uint8(3))},
[]reflect.Value{v(uint8(1)), v(uint8(2)), v(uint8(3))},
},
// Floats.
{
[]reflect.Value{v(2.0), v(1.0), v(3.0)},
[]reflect.Value{v(1.0), v(2.0), v(3.0)},
},
// Strings.
{
[]reflect.Value{b, a, c},
[]reflect.Value{a, b, c},
},
// Array
{
[]reflect.Value{v([3]int{3, 2, 1}), v([3]int{1, 3, 2}), v([3]int{1, 2, 3})},
[]reflect.Value{v([3]int{1, 2, 3}), v([3]int{1, 3, 2}), v([3]int{3, 2, 1})},
},
// Uintptrs.
{
[]reflect.Value{v(uintptr(2)), v(uintptr(1)), v(uintptr(3))},
[]reflect.Value{v(uintptr(1)), v(uintptr(2)), v(uintptr(3))},
},
// SortableStructs.
{
// Note: not sorted - DisableMethods is set.
[]reflect.Value{v(sortableStruct{2}), v(sortableStruct{1}), v(sortableStruct{3})},
[]reflect.Value{v(sortableStruct{2}), v(sortableStruct{1}), v(sortableStruct{3})},
},
// UnsortableStructs.
{
// Note: not sorted - SpewKeys is false.
[]reflect.Value{v(unsortableStruct{2}), v(unsortableStruct{1}), v(unsortableStruct{3})},
[]reflect.Value{v(unsortableStruct{2}), v(unsortableStruct{1}), v(unsortableStruct{3})},
},
// Invalid.
{
[]reflect.Value{embedB, embedA, embedC},
[]reflect.Value{embedB, embedA, embedC},
},
}
cs := spew.ConfigState{DisableMethods: true, SpewKeys: false}
helpTestSortValues(tests, &cs, t)
}
// TestSortValuesWithMethods ensures the sort functionality for relect.Value
// based sorting works as intended when using string methods.
func TestSortValuesWithMethods(t *testing.T) {
v := reflect.ValueOf
a := v("a")
b := v("b")
c := v("c")
tests := []sortTestCase{
// Ints.
{
[]reflect.Value{v(2), v(1), v(3)},
[]reflect.Value{v(1), v(2), v(3)},
},
// Strings.
{
[]reflect.Value{b, a, c},
[]reflect.Value{a, b, c},
},
// SortableStructs.
{
[]reflect.Value{v(sortableStruct{2}), v(sortableStruct{1}), v(sortableStruct{3})},
[]reflect.Value{v(sortableStruct{1}), v(sortableStruct{2}), v(sortableStruct{3})},
},
// UnsortableStructs.
{
// Note: not sorted - SpewKeys is false.
[]reflect.Value{v(unsortableStruct{2}), v(unsortableStruct{1}), v(unsortableStruct{3})},
[]reflect.Value{v(unsortableStruct{2}), v(unsortableStruct{1}), v(unsortableStruct{3})},
},
}
cs := spew.ConfigState{DisableMethods: false, SpewKeys: false}
helpTestSortValues(tests, &cs, t)
}
// TestSortValuesWithSpew ensures the sort functionality for relect.Value
// based sorting works as intended when using spew to stringify keys.
func TestSortValuesWithSpew(t *testing.T) {
v := reflect.ValueOf
a := v("a")
b := v("b")
c := v("c")
tests := []sortTestCase{
// Ints.
{
[]reflect.Value{v(2), v(1), v(3)},
[]reflect.Value{v(1), v(2), v(3)},
},
// Strings.
{
[]reflect.Value{b, a, c},
[]reflect.Value{a, b, c},
},
// SortableStructs.
{
[]reflect.Value{v(sortableStruct{2}), v(sortableStruct{1}), v(sortableStruct{3})},
[]reflect.Value{v(sortableStruct{1}), v(sortableStruct{2}), v(sortableStruct{3})},
},
// UnsortableStructs.
{
[]reflect.Value{v(unsortableStruct{2}), v(unsortableStruct{1}), v(unsortableStruct{3})},
[]reflect.Value{v(unsortableStruct{1}), v(unsortableStruct{2}), v(unsortableStruct{3})},
},
}
cs := spew.ConfigState{DisableMethods: true, SpewKeys: true}
helpTestSortValues(tests, &cs, t)
}

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/*
* Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
package spew
import (
"bytes"
"fmt"
"io"
"os"
)
// ConfigState houses the configuration options used by spew to format and
// display values. There is a global instance, Config, that is used to control
// all top-level Formatter and Dump functionality. Each ConfigState instance
// provides methods equivalent to the top-level functions.
//
// The zero value for ConfigState provides no indentation. You would typically
// want to set it to a space or a tab.
//
// Alternatively, you can use NewDefaultConfig to get a ConfigState instance
// with default settings. See the documentation of NewDefaultConfig for default
// values.
type ConfigState struct {
// Indent specifies the string to use for each indentation level. The
// global config instance that all top-level functions use set this to a
// single space by default. If you would like more indentation, you might
// set this to a tab with "\t" or perhaps two spaces with " ".
Indent string
// MaxDepth controls the maximum number of levels to descend into nested
// data structures. The default, 0, means there is no limit.
//
// NOTE: Circular data structures are properly detected, so it is not
// necessary to set this value unless you specifically want to limit deeply
// nested data structures.
MaxDepth int
// DisableMethods specifies whether or not error and Stringer interfaces are
// invoked for types that implement them.
DisableMethods bool
// DisablePointerMethods specifies whether or not to check for and invoke
// error and Stringer interfaces on types which only accept a pointer
// receiver when the current type is not a pointer.
//
// NOTE: This might be an unsafe action since calling one of these methods
// with a pointer receiver could technically mutate the value, however,
// in practice, types which choose to satisify an error or Stringer
// interface with a pointer receiver should not be mutating their state
// inside these interface methods. As a result, this option relies on
// access to the unsafe package, so it will not have any effect when
// running in environments without access to the unsafe package such as
// Google App Engine or with the "safe" build tag specified.
DisablePointerMethods bool
// DisablePointerAddresses specifies whether to disable the printing of
// pointer addresses. This is useful when diffing data structures in tests.
DisablePointerAddresses bool
// DisableCapacities specifies whether to disable the printing of capacities
// for arrays, slices, maps and channels. This is useful when diffing
// data structures in tests.
DisableCapacities bool
// ContinueOnMethod specifies whether or not recursion should continue once
// a custom error or Stringer interface is invoked. The default, false,
// means it will print the results of invoking the custom error or Stringer
// interface and return immediately instead of continuing to recurse into
// the internals of the data type.
//
// NOTE: This flag does not have any effect if method invocation is disabled
// via the DisableMethods or DisablePointerMethods options.
ContinueOnMethod bool
// SortKeys specifies map keys should be sorted before being printed. Use
// this to have a more deterministic, diffable output. Note that only
// native types (bool, int, uint, floats, uintptr and string) and types
// that support the error or Stringer interfaces (if methods are
// enabled) are supported, with other types sorted according to the
// reflect.Value.String() output which guarantees display stability.
SortKeys bool
// SpewKeys specifies that, as a last resort attempt, map keys should
// be spewed to strings and sorted by those strings. This is only
// considered if SortKeys is true.
SpewKeys bool
}
// Config is the active configuration of the top-level functions.
// The configuration can be changed by modifying the contents of spew.Config.
var Config = ConfigState{Indent: " "}
// Errorf is a wrapper for fmt.Errorf that treats each argument as if it were
// passed with a Formatter interface returned by c.NewFormatter. It returns
// the formatted string as a value that satisfies error. See NewFormatter
// for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Errorf(format, c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Errorf(format string, a ...interface{}) (err error) {
return fmt.Errorf(format, c.convertArgs(a)...)
}
// Fprint is a wrapper for fmt.Fprint that treats each argument as if it were
// passed with a Formatter interface returned by c.NewFormatter. It returns
// the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Fprint(w, c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Fprint(w io.Writer, a ...interface{}) (n int, err error) {
return fmt.Fprint(w, c.convertArgs(a)...)
}
// Fprintf is a wrapper for fmt.Fprintf that treats each argument as if it were
// passed with a Formatter interface returned by c.NewFormatter. It returns
// the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Fprintf(w, format, c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Fprintf(w io.Writer, format string, a ...interface{}) (n int, err error) {
return fmt.Fprintf(w, format, c.convertArgs(a)...)
}
// Fprintln is a wrapper for fmt.Fprintln that treats each argument as if it
// passed with a Formatter interface returned by c.NewFormatter. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Fprintln(w, c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Fprintln(w io.Writer, a ...interface{}) (n int, err error) {
return fmt.Fprintln(w, c.convertArgs(a)...)
}
// Print is a wrapper for fmt.Print that treats each argument as if it were
// passed with a Formatter interface returned by c.NewFormatter. It returns
// the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Print(c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Print(a ...interface{}) (n int, err error) {
return fmt.Print(c.convertArgs(a)...)
}
// Printf is a wrapper for fmt.Printf that treats each argument as if it were
// passed with a Formatter interface returned by c.NewFormatter. It returns
// the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Printf(format, c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Printf(format string, a ...interface{}) (n int, err error) {
return fmt.Printf(format, c.convertArgs(a)...)
}
// Println is a wrapper for fmt.Println that treats each argument as if it were
// passed with a Formatter interface returned by c.NewFormatter. It returns
// the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Println(c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Println(a ...interface{}) (n int, err error) {
return fmt.Println(c.convertArgs(a)...)
}
// Sprint is a wrapper for fmt.Sprint that treats each argument as if it were
// passed with a Formatter interface returned by c.NewFormatter. It returns
// the resulting string. See NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Sprint(c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Sprint(a ...interface{}) string {
return fmt.Sprint(c.convertArgs(a)...)
}
// Sprintf is a wrapper for fmt.Sprintf that treats each argument as if it were
// passed with a Formatter interface returned by c.NewFormatter. It returns
// the resulting string. See NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Sprintf(format, c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Sprintf(format string, a ...interface{}) string {
return fmt.Sprintf(format, c.convertArgs(a)...)
}
// Sprintln is a wrapper for fmt.Sprintln that treats each argument as if it
// were passed with a Formatter interface returned by c.NewFormatter. It
// returns the resulting string. See NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Sprintln(c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Sprintln(a ...interface{}) string {
return fmt.Sprintln(c.convertArgs(a)...)
}
/*
NewFormatter returns a custom formatter that satisfies the fmt.Formatter
interface. As a result, it integrates cleanly with standard fmt package
printing functions. The formatter is useful for inline printing of smaller data
types similar to the standard %v format specifier.
The custom formatter only responds to the %v (most compact), %+v (adds pointer
addresses), %#v (adds types), and %#+v (adds types and pointer addresses) verb
combinations. Any other verbs such as %x and %q will be sent to the the
standard fmt package for formatting. In addition, the custom formatter ignores
the width and precision arguments (however they will still work on the format
specifiers not handled by the custom formatter).
Typically this function shouldn't be called directly. It is much easier to make
use of the custom formatter by calling one of the convenience functions such as
c.Printf, c.Println, or c.Printf.
*/
func (c *ConfigState) NewFormatter(v interface{}) fmt.Formatter {
return newFormatter(c, v)
}
// Fdump formats and displays the passed arguments to io.Writer w. It formats
// exactly the same as Dump.
func (c *ConfigState) Fdump(w io.Writer, a ...interface{}) {
fdump(c, w, a...)
}
/*
Dump displays the passed parameters to standard out with newlines, customizable
indentation, and additional debug information such as complete types and all
pointer addresses used to indirect to the final value. It provides the
following features over the built-in printing facilities provided by the fmt
package:
* Pointers are dereferenced and followed
* Circular data structures are detected and handled properly
* Custom Stringer/error interfaces are optionally invoked, including
on unexported types
* Custom types which only implement the Stringer/error interfaces via
a pointer receiver are optionally invoked when passing non-pointer
variables
* Byte arrays and slices are dumped like the hexdump -C command which
includes offsets, byte values in hex, and ASCII output
The configuration options are controlled by modifying the public members
of c. See ConfigState for options documentation.
See Fdump if you would prefer dumping to an arbitrary io.Writer or Sdump to
get the formatted result as a string.
*/
func (c *ConfigState) Dump(a ...interface{}) {
fdump(c, os.Stdout, a...)
}
// Sdump returns a string with the passed arguments formatted exactly the same
// as Dump.
func (c *ConfigState) Sdump(a ...interface{}) string {
var buf bytes.Buffer
fdump(c, &buf, a...)
return buf.String()
}
// convertArgs accepts a slice of arguments and returns a slice of the same
// length with each argument converted to a spew Formatter interface using
// the ConfigState associated with s.
func (c *ConfigState) convertArgs(args []interface{}) (formatters []interface{}) {
formatters = make([]interface{}, len(args))
for index, arg := range args {
formatters[index] = newFormatter(c, arg)
}
return formatters
}
// NewDefaultConfig returns a ConfigState with the following default settings.
//
// Indent: " "
// MaxDepth: 0
// DisableMethods: false
// DisablePointerMethods: false
// ContinueOnMethod: false
// SortKeys: false
func NewDefaultConfig() *ConfigState {
return &ConfigState{Indent: " "}
}

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/*
* Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/*
Package spew implements a deep pretty printer for Go data structures to aid in
debugging.
A quick overview of the additional features spew provides over the built-in
printing facilities for Go data types are as follows:
* Pointers are dereferenced and followed
* Circular data structures are detected and handled properly
* Custom Stringer/error interfaces are optionally invoked, including
on unexported types
* Custom types which only implement the Stringer/error interfaces via
a pointer receiver are optionally invoked when passing non-pointer
variables
* Byte arrays and slices are dumped like the hexdump -C command which
includes offsets, byte values in hex, and ASCII output (only when using
Dump style)
There are two different approaches spew allows for dumping Go data structures:
* Dump style which prints with newlines, customizable indentation,
and additional debug information such as types and all pointer addresses
used to indirect to the final value
* A custom Formatter interface that integrates cleanly with the standard fmt
package and replaces %v, %+v, %#v, and %#+v to provide inline printing
similar to the default %v while providing the additional functionality
outlined above and passing unsupported format verbs such as %x and %q
along to fmt
Quick Start
This section demonstrates how to quickly get started with spew. See the
sections below for further details on formatting and configuration options.
To dump a variable with full newlines, indentation, type, and pointer
information use Dump, Fdump, or Sdump:
spew.Dump(myVar1, myVar2, ...)
spew.Fdump(someWriter, myVar1, myVar2, ...)
str := spew.Sdump(myVar1, myVar2, ...)
Alternatively, if you would prefer to use format strings with a compacted inline
printing style, use the convenience wrappers Printf, Fprintf, etc with
%v (most compact), %+v (adds pointer addresses), %#v (adds types), or
%#+v (adds types and pointer addresses):
spew.Printf("myVar1: %v -- myVar2: %+v", myVar1, myVar2)
spew.Printf("myVar3: %#v -- myVar4: %#+v", myVar3, myVar4)
spew.Fprintf(someWriter, "myVar1: %v -- myVar2: %+v", myVar1, myVar2)
spew.Fprintf(someWriter, "myVar3: %#v -- myVar4: %#+v", myVar3, myVar4)
Configuration Options
Configuration of spew is handled by fields in the ConfigState type. For
convenience, all of the top-level functions use a global state available
via the spew.Config global.
It is also possible to create a ConfigState instance that provides methods
equivalent to the top-level functions. This allows concurrent configuration
options. See the ConfigState documentation for more details.
The following configuration options are available:
* Indent
String to use for each indentation level for Dump functions.
It is a single space by default. A popular alternative is "\t".
* MaxDepth
Maximum number of levels to descend into nested data structures.
There is no limit by default.
* DisableMethods
Disables invocation of error and Stringer interface methods.
Method invocation is enabled by default.
* DisablePointerMethods
Disables invocation of error and Stringer interface methods on types
which only accept pointer receivers from non-pointer variables.
Pointer method invocation is enabled by default.
* DisablePointerAddresses
DisablePointerAddresses specifies whether to disable the printing of
pointer addresses. This is useful when diffing data structures in tests.
* DisableCapacities
DisableCapacities specifies whether to disable the printing of
capacities for arrays, slices, maps and channels. This is useful when
diffing data structures in tests.
* ContinueOnMethod
Enables recursion into types after invoking error and Stringer interface
methods. Recursion after method invocation is disabled by default.
* SortKeys
Specifies map keys should be sorted before being printed. Use
this to have a more deterministic, diffable output. Note that
only native types (bool, int, uint, floats, uintptr and string)
and types which implement error or Stringer interfaces are
supported with other types sorted according to the
reflect.Value.String() output which guarantees display
stability. Natural map order is used by default.
* SpewKeys
Specifies that, as a last resort attempt, map keys should be
spewed to strings and sorted by those strings. This is only
considered if SortKeys is true.
Dump Usage
Simply call spew.Dump with a list of variables you want to dump:
spew.Dump(myVar1, myVar2, ...)
You may also call spew.Fdump if you would prefer to output to an arbitrary
io.Writer. For example, to dump to standard error:
spew.Fdump(os.Stderr, myVar1, myVar2, ...)
A third option is to call spew.Sdump to get the formatted output as a string:
str := spew.Sdump(myVar1, myVar2, ...)
Sample Dump Output
See the Dump example for details on the setup of the types and variables being
shown here.
(main.Foo) {
unexportedField: (*main.Bar)(0xf84002e210)({
flag: (main.Flag) flagTwo,
data: (uintptr) <nil>
}),
ExportedField: (map[interface {}]interface {}) (len=1) {
(string) (len=3) "one": (bool) true
}
}
Byte (and uint8) arrays and slices are displayed uniquely like the hexdump -C
command as shown.
([]uint8) (len=32 cap=32) {
00000000 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f 20 |............... |
00000010 21 22 23 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f 30 |!"#$%&'()*+,-./0|
00000020 31 32 |12|
}
Custom Formatter
Spew provides a custom formatter that implements the fmt.Formatter interface
so that it integrates cleanly with standard fmt package printing functions. The
formatter is useful for inline printing of smaller data types similar to the
standard %v format specifier.
The custom formatter only responds to the %v (most compact), %+v (adds pointer
addresses), %#v (adds types), or %#+v (adds types and pointer addresses) verb
combinations. Any other verbs such as %x and %q will be sent to the the
standard fmt package for formatting. In addition, the custom formatter ignores
the width and precision arguments (however they will still work on the format
specifiers not handled by the custom formatter).
Custom Formatter Usage
The simplest way to make use of the spew custom formatter is to call one of the
convenience functions such as spew.Printf, spew.Println, or spew.Printf. The
functions have syntax you are most likely already familiar with:
spew.Printf("myVar1: %v -- myVar2: %+v", myVar1, myVar2)
spew.Printf("myVar3: %#v -- myVar4: %#+v", myVar3, myVar4)
spew.Println(myVar, myVar2)
spew.Fprintf(os.Stderr, "myVar1: %v -- myVar2: %+v", myVar1, myVar2)
spew.Fprintf(os.Stderr, "myVar3: %#v -- myVar4: %#+v", myVar3, myVar4)
See the Index for the full list convenience functions.
Sample Formatter Output
Double pointer to a uint8:
%v: <**>5
%+v: <**>(0xf8400420d0->0xf8400420c8)5
%#v: (**uint8)5
%#+v: (**uint8)(0xf8400420d0->0xf8400420c8)5
Pointer to circular struct with a uint8 field and a pointer to itself:
%v: <*>{1 <*><shown>}
%+v: <*>(0xf84003e260){ui8:1 c:<*>(0xf84003e260)<shown>}
%#v: (*main.circular){ui8:(uint8)1 c:(*main.circular)<shown>}
%#+v: (*main.circular)(0xf84003e260){ui8:(uint8)1 c:(*main.circular)(0xf84003e260)<shown>}
See the Printf example for details on the setup of variables being shown
here.
Errors
Since it is possible for custom Stringer/error interfaces to panic, spew
detects them and handles them internally by printing the panic information
inline with the output. Since spew is intended to provide deep pretty printing
capabilities on structures, it intentionally does not return any errors.
*/
package spew

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/*
* Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
package spew
import (
"bytes"
"encoding/hex"
"fmt"
"io"
"os"
"reflect"
"regexp"
"strconv"
"strings"
)
var (
// uint8Type is a reflect.Type representing a uint8. It is used to
// convert cgo types to uint8 slices for hexdumping.
uint8Type = reflect.TypeOf(uint8(0))
// cCharRE is a regular expression that matches a cgo char.
// It is used to detect character arrays to hexdump them.
cCharRE = regexp.MustCompile(`^.*\._Ctype_char$`)
// cUnsignedCharRE is a regular expression that matches a cgo unsigned
// char. It is used to detect unsigned character arrays to hexdump
// them.
cUnsignedCharRE = regexp.MustCompile(`^.*\._Ctype_unsignedchar$`)
// cUint8tCharRE is a regular expression that matches a cgo uint8_t.
// It is used to detect uint8_t arrays to hexdump them.
cUint8tCharRE = regexp.MustCompile(`^.*\._Ctype_uint8_t$`)
)
// dumpState contains information about the state of a dump operation.
type dumpState struct {
w io.Writer
depth int
pointers map[uintptr]int
ignoreNextType bool
ignoreNextIndent bool
cs *ConfigState
}
// indent performs indentation according to the depth level and cs.Indent
// option.
func (d *dumpState) indent() {
if d.ignoreNextIndent {
d.ignoreNextIndent = false
return
}
d.w.Write(bytes.Repeat([]byte(d.cs.Indent), d.depth))
}
// unpackValue returns values inside of non-nil interfaces when possible.
// This is useful for data types like structs, arrays, slices, and maps which
// can contain varying types packed inside an interface.
func (d *dumpState) unpackValue(v reflect.Value) reflect.Value {
if v.Kind() == reflect.Interface && !v.IsNil() {
v = v.Elem()
}
return v
}
// dumpPtr handles formatting of pointers by indirecting them as necessary.
func (d *dumpState) dumpPtr(v reflect.Value) {
// Remove pointers at or below the current depth from map used to detect
// circular refs.
for k, depth := range d.pointers {
if depth >= d.depth {
delete(d.pointers, k)
}
}
// Keep list of all dereferenced pointers to show later.
pointerChain := make([]uintptr, 0)
// Figure out how many levels of indirection there are by dereferencing
// pointers and unpacking interfaces down the chain while detecting circular
// references.
nilFound := false
cycleFound := false
indirects := 0
ve := v
for ve.Kind() == reflect.Ptr {
if ve.IsNil() {
nilFound = true
break
}
indirects++
addr := ve.Pointer()
pointerChain = append(pointerChain, addr)
if pd, ok := d.pointers[addr]; ok && pd < d.depth {
cycleFound = true
indirects--
break
}
d.pointers[addr] = d.depth
ve = ve.Elem()
if ve.Kind() == reflect.Interface {
if ve.IsNil() {
nilFound = true
break
}
ve = ve.Elem()
}
}
// Display type information.
d.w.Write(openParenBytes)
d.w.Write(bytes.Repeat(asteriskBytes, indirects))
d.w.Write([]byte(ve.Type().String()))
d.w.Write(closeParenBytes)
// Display pointer information.
if !d.cs.DisablePointerAddresses && len(pointerChain) > 0 {
d.w.Write(openParenBytes)
for i, addr := range pointerChain {
if i > 0 {
d.w.Write(pointerChainBytes)
}
printHexPtr(d.w, addr)
}
d.w.Write(closeParenBytes)
}
// Display dereferenced value.
d.w.Write(openParenBytes)
switch {
case nilFound:
d.w.Write(nilAngleBytes)
case cycleFound:
d.w.Write(circularBytes)
default:
d.ignoreNextType = true
d.dump(ve)
}
d.w.Write(closeParenBytes)
}
// dumpSlice handles formatting of arrays and slices. Byte (uint8 under
// reflection) arrays and slices are dumped in hexdump -C fashion.
func (d *dumpState) dumpSlice(v reflect.Value) {
// Determine whether this type should be hex dumped or not. Also,
// for types which should be hexdumped, try to use the underlying data
// first, then fall back to trying to convert them to a uint8 slice.
var buf []uint8
doConvert := false
doHexDump := false
numEntries := v.Len()
if numEntries > 0 {
vt := v.Index(0).Type()
vts := vt.String()
switch {
// C types that need to be converted.
case cCharRE.MatchString(vts):
fallthrough
case cUnsignedCharRE.MatchString(vts):
fallthrough
case cUint8tCharRE.MatchString(vts):
doConvert = true
// Try to use existing uint8 slices and fall back to converting
// and copying if that fails.
case vt.Kind() == reflect.Uint8:
// We need an addressable interface to convert the type
// to a byte slice. However, the reflect package won't
// give us an interface on certain things like
// unexported struct fields in order to enforce
// visibility rules. We use unsafe, when available, to
// bypass these restrictions since this package does not
// mutate the values.
vs := v
if !vs.CanInterface() || !vs.CanAddr() {
vs = unsafeReflectValue(vs)
}
if !UnsafeDisabled {
vs = vs.Slice(0, numEntries)
// Use the existing uint8 slice if it can be
// type asserted.
iface := vs.Interface()
if slice, ok := iface.([]uint8); ok {
buf = slice
doHexDump = true
break
}
}
// The underlying data needs to be converted if it can't
// be type asserted to a uint8 slice.
doConvert = true
}
// Copy and convert the underlying type if needed.
if doConvert && vt.ConvertibleTo(uint8Type) {
// Convert and copy each element into a uint8 byte
// slice.
buf = make([]uint8, numEntries)
for i := 0; i < numEntries; i++ {
vv := v.Index(i)
buf[i] = uint8(vv.Convert(uint8Type).Uint())
}
doHexDump = true
}
}
// Hexdump the entire slice as needed.
if doHexDump {
indent := strings.Repeat(d.cs.Indent, d.depth)
str := indent + hex.Dump(buf)
str = strings.Replace(str, "\n", "\n"+indent, -1)
str = strings.TrimRight(str, d.cs.Indent)
d.w.Write([]byte(str))
return
}
// Recursively call dump for each item.
for i := 0; i < numEntries; i++ {
d.dump(d.unpackValue(v.Index(i)))
if i < (numEntries - 1) {
d.w.Write(commaNewlineBytes)
} else {
d.w.Write(newlineBytes)
}
}
}
// dump is the main workhorse for dumping a value. It uses the passed reflect
// value to figure out what kind of object we are dealing with and formats it
// appropriately. It is a recursive function, however circular data structures
// are detected and handled properly.
func (d *dumpState) dump(v reflect.Value) {
// Handle invalid reflect values immediately.
kind := v.Kind()
if kind == reflect.Invalid {
d.w.Write(invalidAngleBytes)
return
}
// Handle pointers specially.
if kind == reflect.Ptr {
d.indent()
d.dumpPtr(v)
return
}
// Print type information unless already handled elsewhere.
if !d.ignoreNextType {
d.indent()
d.w.Write(openParenBytes)
d.w.Write([]byte(v.Type().String()))
d.w.Write(closeParenBytes)
d.w.Write(spaceBytes)
}
d.ignoreNextType = false
// Display length and capacity if the built-in len and cap functions
// work with the value's kind and the len/cap itself is non-zero.
valueLen, valueCap := 0, 0
switch v.Kind() {
case reflect.Array, reflect.Slice, reflect.Chan:
valueLen, valueCap = v.Len(), v.Cap()
case reflect.Map, reflect.String:
valueLen = v.Len()
}
if valueLen != 0 || !d.cs.DisableCapacities && valueCap != 0 {
d.w.Write(openParenBytes)
if valueLen != 0 {
d.w.Write(lenEqualsBytes)
printInt(d.w, int64(valueLen), 10)
}
if !d.cs.DisableCapacities && valueCap != 0 {
if valueLen != 0 {
d.w.Write(spaceBytes)
}
d.w.Write(capEqualsBytes)
printInt(d.w, int64(valueCap), 10)
}
d.w.Write(closeParenBytes)
d.w.Write(spaceBytes)
}
// Call Stringer/error interfaces if they exist and the handle methods flag
// is enabled
if !d.cs.DisableMethods {
if (kind != reflect.Invalid) && (kind != reflect.Interface) {
if handled := handleMethods(d.cs, d.w, v); handled {
return
}
}
}
switch kind {
case reflect.Invalid:
// Do nothing. We should never get here since invalid has already
// been handled above.
case reflect.Bool:
printBool(d.w, v.Bool())
case reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Int:
printInt(d.w, v.Int(), 10)
case reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uint:
printUint(d.w, v.Uint(), 10)
case reflect.Float32:
printFloat(d.w, v.Float(), 32)
case reflect.Float64:
printFloat(d.w, v.Float(), 64)
case reflect.Complex64:
printComplex(d.w, v.Complex(), 32)
case reflect.Complex128:
printComplex(d.w, v.Complex(), 64)
case reflect.Slice:
if v.IsNil() {
d.w.Write(nilAngleBytes)
break
}
fallthrough
case reflect.Array:
d.w.Write(openBraceNewlineBytes)
d.depth++
if (d.cs.MaxDepth != 0) && (d.depth > d.cs.MaxDepth) {
d.indent()
d.w.Write(maxNewlineBytes)
} else {
d.dumpSlice(v)
}
d.depth--
d.indent()
d.w.Write(closeBraceBytes)
case reflect.String:
d.w.Write([]byte(strconv.Quote(v.String())))
case reflect.Interface:
// The only time we should get here is for nil interfaces due to
// unpackValue calls.
if v.IsNil() {
d.w.Write(nilAngleBytes)
}
case reflect.Ptr:
// Do nothing. We should never get here since pointers have already
// been handled above.
case reflect.Map:
// nil maps should be indicated as different than empty maps
if v.IsNil() {
d.w.Write(nilAngleBytes)
break
}
d.w.Write(openBraceNewlineBytes)
d.depth++
if (d.cs.MaxDepth != 0) && (d.depth > d.cs.MaxDepth) {
d.indent()
d.w.Write(maxNewlineBytes)
} else {
numEntries := v.Len()
keys := v.MapKeys()
if d.cs.SortKeys {
sortValues(keys, d.cs)
}
for i, key := range keys {
d.dump(d.unpackValue(key))
d.w.Write(colonSpaceBytes)
d.ignoreNextIndent = true
d.dump(d.unpackValue(v.MapIndex(key)))
if i < (numEntries - 1) {
d.w.Write(commaNewlineBytes)
} else {
d.w.Write(newlineBytes)
}
}
}
d.depth--
d.indent()
d.w.Write(closeBraceBytes)
case reflect.Struct:
d.w.Write(openBraceNewlineBytes)
d.depth++
if (d.cs.MaxDepth != 0) && (d.depth > d.cs.MaxDepth) {
d.indent()
d.w.Write(maxNewlineBytes)
} else {
vt := v.Type()
numFields := v.NumField()
for i := 0; i < numFields; i++ {
d.indent()
vtf := vt.Field(i)
d.w.Write([]byte(vtf.Name))
d.w.Write(colonSpaceBytes)
d.ignoreNextIndent = true
d.dump(d.unpackValue(v.Field(i)))
if i < (numFields - 1) {
d.w.Write(commaNewlineBytes)
} else {
d.w.Write(newlineBytes)
}
}
}
d.depth--
d.indent()
d.w.Write(closeBraceBytes)
case reflect.Uintptr:
printHexPtr(d.w, uintptr(v.Uint()))
case reflect.UnsafePointer, reflect.Chan, reflect.Func:
printHexPtr(d.w, v.Pointer())
// There were not any other types at the time this code was written, but
// fall back to letting the default fmt package handle it in case any new
// types are added.
default:
if v.CanInterface() {
fmt.Fprintf(d.w, "%v", v.Interface())
} else {
fmt.Fprintf(d.w, "%v", v.String())
}
}
}
// fdump is a helper function to consolidate the logic from the various public
// methods which take varying writers and config states.
func fdump(cs *ConfigState, w io.Writer, a ...interface{}) {
for _, arg := range a {
if arg == nil {
w.Write(interfaceBytes)
w.Write(spaceBytes)
w.Write(nilAngleBytes)
w.Write(newlineBytes)
continue
}
d := dumpState{w: w, cs: cs}
d.pointers = make(map[uintptr]int)
d.dump(reflect.ValueOf(arg))
d.w.Write(newlineBytes)
}
}
// Fdump formats and displays the passed arguments to io.Writer w. It formats
// exactly the same as Dump.
func Fdump(w io.Writer, a ...interface{}) {
fdump(&Config, w, a...)
}
// Sdump returns a string with the passed arguments formatted exactly the same
// as Dump.
func Sdump(a ...interface{}) string {
var buf bytes.Buffer
fdump(&Config, &buf, a...)
return buf.String()
}
/*
Dump displays the passed parameters to standard out with newlines, customizable
indentation, and additional debug information such as complete types and all
pointer addresses used to indirect to the final value. It provides the
following features over the built-in printing facilities provided by the fmt
package:
* Pointers are dereferenced and followed
* Circular data structures are detected and handled properly
* Custom Stringer/error interfaces are optionally invoked, including
on unexported types
* Custom types which only implement the Stringer/error interfaces via
a pointer receiver are optionally invoked when passing non-pointer
variables
* Byte arrays and slices are dumped like the hexdump -C command which
includes offsets, byte values in hex, and ASCII output
The configuration options are controlled by an exported package global,
spew.Config. See ConfigState for options documentation.
See Fdump if you would prefer dumping to an arbitrary io.Writer or Sdump to
get the formatted result as a string.
*/
func Dump(a ...interface{}) {
fdump(&Config, os.Stdout, a...)
}

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// Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
//
// Permission to use, copy, modify, and distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
// NOTE: Due to the following build constraints, this file will only be compiled
// when both cgo is supported and "-tags testcgo" is added to the go test
// command line. This means the cgo tests are only added (and hence run) when
// specifially requested. This configuration is used because spew itself
// does not require cgo to run even though it does handle certain cgo types
// specially. Rather than forcing all clients to require cgo and an external
// C compiler just to run the tests, this scheme makes them optional.
// +build cgo,testcgo
package spew_test
import (
"fmt"
"github.com/davecgh/go-spew/spew/testdata"
)
func addCgoDumpTests() {
// C char pointer.
v := testdata.GetCgoCharPointer()
nv := testdata.GetCgoNullCharPointer()
pv := &v
vcAddr := fmt.Sprintf("%p", v)
vAddr := fmt.Sprintf("%p", pv)
pvAddr := fmt.Sprintf("%p", &pv)
vt := "*testdata._Ctype_char"
vs := "116"
addDumpTest(v, "("+vt+")("+vcAddr+")("+vs+")\n")
addDumpTest(pv, "(*"+vt+")("+vAddr+"->"+vcAddr+")("+vs+")\n")
addDumpTest(&pv, "(**"+vt+")("+pvAddr+"->"+vAddr+"->"+vcAddr+")("+vs+")\n")
addDumpTest(nv, "("+vt+")(<nil>)\n")
// C char array.
v2, v2l, v2c := testdata.GetCgoCharArray()
v2Len := fmt.Sprintf("%d", v2l)
v2Cap := fmt.Sprintf("%d", v2c)
v2t := "[6]testdata._Ctype_char"
v2s := "(len=" + v2Len + " cap=" + v2Cap + ") " +
"{\n 00000000 74 65 73 74 32 00 " +
" |test2.|\n}"
addDumpTest(v2, "("+v2t+") "+v2s+"\n")
// C unsigned char array.
v3, v3l, v3c := testdata.GetCgoUnsignedCharArray()
v3Len := fmt.Sprintf("%d", v3l)
v3Cap := fmt.Sprintf("%d", v3c)
v3t := "[6]testdata._Ctype_unsignedchar"
v3t2 := "[6]testdata._Ctype_uchar"
v3s := "(len=" + v3Len + " cap=" + v3Cap + ") " +
"{\n 00000000 74 65 73 74 33 00 " +
" |test3.|\n}"
addDumpTest(v3, "("+v3t+") "+v3s+"\n", "("+v3t2+") "+v3s+"\n")
// C signed char array.
v4, v4l, v4c := testdata.GetCgoSignedCharArray()
v4Len := fmt.Sprintf("%d", v4l)
v4Cap := fmt.Sprintf("%d", v4c)
v4t := "[6]testdata._Ctype_schar"
v4t2 := "testdata._Ctype_schar"
v4s := "(len=" + v4Len + " cap=" + v4Cap + ") " +
"{\n (" + v4t2 + ") 116,\n (" + v4t2 + ") 101,\n (" + v4t2 +
") 115,\n (" + v4t2 + ") 116,\n (" + v4t2 + ") 52,\n (" + v4t2 +
") 0\n}"
addDumpTest(v4, "("+v4t+") "+v4s+"\n")
// C uint8_t array.
v5, v5l, v5c := testdata.GetCgoUint8tArray()
v5Len := fmt.Sprintf("%d", v5l)
v5Cap := fmt.Sprintf("%d", v5c)
v5t := "[6]testdata._Ctype_uint8_t"
v5t2 := "[6]testdata._Ctype_uchar"
v5s := "(len=" + v5Len + " cap=" + v5Cap + ") " +
"{\n 00000000 74 65 73 74 35 00 " +
" |test5.|\n}"
addDumpTest(v5, "("+v5t+") "+v5s+"\n", "("+v5t2+") "+v5s+"\n")
// C typedefed unsigned char array.
v6, v6l, v6c := testdata.GetCgoTypdefedUnsignedCharArray()
v6Len := fmt.Sprintf("%d", v6l)
v6Cap := fmt.Sprintf("%d", v6c)
v6t := "[6]testdata._Ctype_custom_uchar_t"
v6t2 := "[6]testdata._Ctype_uchar"
v6s := "(len=" + v6Len + " cap=" + v6Cap + ") " +
"{\n 00000000 74 65 73 74 36 00 " +
" |test6.|\n}"
addDumpTest(v6, "("+v6t+") "+v6s+"\n", "("+v6t2+") "+v6s+"\n")
}

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// Copyright (c) 2013 Dave Collins <dave@davec.name>
//
// Permission to use, copy, modify, and distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
// NOTE: Due to the following build constraints, this file will only be compiled
// when either cgo is not supported or "-tags testcgo" is not added to the go
// test command line. This file intentionally does not setup any cgo tests in
// this scenario.
// +build !cgo !testcgo
package spew_test
func addCgoDumpTests() {
// Don't add any tests for cgo since this file is only compiled when
// there should not be any cgo tests.
}

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/*
* Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
package spew_test
import (
"fmt"
"github.com/davecgh/go-spew/spew"
)
type Flag int
const (
flagOne Flag = iota
flagTwo
)
var flagStrings = map[Flag]string{
flagOne: "flagOne",
flagTwo: "flagTwo",
}
func (f Flag) String() string {
if s, ok := flagStrings[f]; ok {
return s
}
return fmt.Sprintf("Unknown flag (%d)", int(f))
}
type Bar struct {
data uintptr
}
type Foo struct {
unexportedField Bar
ExportedField map[interface{}]interface{}
}
// This example demonstrates how to use Dump to dump variables to stdout.
func ExampleDump() {
// The following package level declarations are assumed for this example:
/*
type Flag int
const (
flagOne Flag = iota
flagTwo
)
var flagStrings = map[Flag]string{
flagOne: "flagOne",
flagTwo: "flagTwo",
}
func (f Flag) String() string {
if s, ok := flagStrings[f]; ok {
return s
}
return fmt.Sprintf("Unknown flag (%d)", int(f))
}
type Bar struct {
data uintptr
}
type Foo struct {
unexportedField Bar
ExportedField map[interface{}]interface{}
}
*/
// Setup some sample data structures for the example.
bar := Bar{uintptr(0)}
s1 := Foo{bar, map[interface{}]interface{}{"one": true}}
f := Flag(5)
b := []byte{
0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18,
0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20,
0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28,
0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, 0x30,
0x31, 0x32,
}
// Dump!
spew.Dump(s1, f, b)
// Output:
// (spew_test.Foo) {
// unexportedField: (spew_test.Bar) {
// data: (uintptr) <nil>
// },
// ExportedField: (map[interface {}]interface {}) (len=1) {
// (string) (len=3) "one": (bool) true
// }
// }
// (spew_test.Flag) Unknown flag (5)
// ([]uint8) (len=34 cap=34) {
// 00000000 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f 20 |............... |
// 00000010 21 22 23 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f 30 |!"#$%&'()*+,-./0|
// 00000020 31 32 |12|
// }
//
}
// This example demonstrates how to use Printf to display a variable with a
// format string and inline formatting.
func ExamplePrintf() {
// Create a double pointer to a uint 8.
ui8 := uint8(5)
pui8 := &ui8
ppui8 := &pui8
// Create a circular data type.
type circular struct {
ui8 uint8
c *circular
}
c := circular{ui8: 1}
c.c = &c
// Print!
spew.Printf("ppui8: %v\n", ppui8)
spew.Printf("circular: %v\n", c)
// Output:
// ppui8: <**>5
// circular: {1 <*>{1 <*><shown>}}
}
// This example demonstrates how to use a ConfigState.
func ExampleConfigState() {
// Modify the indent level of the ConfigState only. The global
// configuration is not modified.
scs := spew.ConfigState{Indent: "\t"}
// Output using the ConfigState instance.
v := map[string]int{"one": 1}
scs.Printf("v: %v\n", v)
scs.Dump(v)
// Output:
// v: map[one:1]
// (map[string]int) (len=1) {
// (string) (len=3) "one": (int) 1
// }
}
// This example demonstrates how to use ConfigState.Dump to dump variables to
// stdout
func ExampleConfigState_Dump() {
// See the top-level Dump example for details on the types used in this
// example.
// Create two ConfigState instances with different indentation.
scs := spew.ConfigState{Indent: "\t"}
scs2 := spew.ConfigState{Indent: " "}
// Setup some sample data structures for the example.
bar := Bar{uintptr(0)}
s1 := Foo{bar, map[interface{}]interface{}{"one": true}}
// Dump using the ConfigState instances.
scs.Dump(s1)
scs2.Dump(s1)
// Output:
// (spew_test.Foo) {
// unexportedField: (spew_test.Bar) {
// data: (uintptr) <nil>
// },
// ExportedField: (map[interface {}]interface {}) (len=1) {
// (string) (len=3) "one": (bool) true
// }
// }
// (spew_test.Foo) {
// unexportedField: (spew_test.Bar) {
// data: (uintptr) <nil>
// },
// ExportedField: (map[interface {}]interface {}) (len=1) {
// (string) (len=3) "one": (bool) true
// }
// }
//
}
// This example demonstrates how to use ConfigState.Printf to display a variable
// with a format string and inline formatting.
func ExampleConfigState_Printf() {
// See the top-level Dump example for details on the types used in this
// example.
// Create two ConfigState instances and modify the method handling of the
// first ConfigState only.
scs := spew.NewDefaultConfig()
scs2 := spew.NewDefaultConfig()
scs.DisableMethods = true
// Alternatively
// scs := spew.ConfigState{Indent: " ", DisableMethods: true}
// scs2 := spew.ConfigState{Indent: " "}
// This is of type Flag which implements a Stringer and has raw value 1.
f := flagTwo
// Dump using the ConfigState instances.
scs.Printf("f: %v\n", f)
scs2.Printf("f: %v\n", f)
// Output:
// f: 1
// f: flagTwo
}

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/*
* Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
package spew
import (
"bytes"
"fmt"
"reflect"
"strconv"
"strings"
)
// supportedFlags is a list of all the character flags supported by fmt package.
const supportedFlags = "0-+# "
// formatState implements the fmt.Formatter interface and contains information
// about the state of a formatting operation. The NewFormatter function can
// be used to get a new Formatter which can be used directly as arguments
// in standard fmt package printing calls.
type formatState struct {
value interface{}
fs fmt.State
depth int
pointers map[uintptr]int
ignoreNextType bool
cs *ConfigState
}
// buildDefaultFormat recreates the original format string without precision
// and width information to pass in to fmt.Sprintf in the case of an
// unrecognized type. Unless new types are added to the language, this
// function won't ever be called.
func (f *formatState) buildDefaultFormat() (format string) {
buf := bytes.NewBuffer(percentBytes)
for _, flag := range supportedFlags {
if f.fs.Flag(int(flag)) {
buf.WriteRune(flag)
}
}
buf.WriteRune('v')
format = buf.String()
return format
}
// constructOrigFormat recreates the original format string including precision
// and width information to pass along to the standard fmt package. This allows
// automatic deferral of all format strings this package doesn't support.
func (f *formatState) constructOrigFormat(verb rune) (format string) {
buf := bytes.NewBuffer(percentBytes)
for _, flag := range supportedFlags {
if f.fs.Flag(int(flag)) {
buf.WriteRune(flag)
}
}
if width, ok := f.fs.Width(); ok {
buf.WriteString(strconv.Itoa(width))
}
if precision, ok := f.fs.Precision(); ok {
buf.Write(precisionBytes)
buf.WriteString(strconv.Itoa(precision))
}
buf.WriteRune(verb)
format = buf.String()
return format
}
// unpackValue returns values inside of non-nil interfaces when possible and
// ensures that types for values which have been unpacked from an interface
// are displayed when the show types flag is also set.
// This is useful for data types like structs, arrays, slices, and maps which
// can contain varying types packed inside an interface.
func (f *formatState) unpackValue(v reflect.Value) reflect.Value {
if v.Kind() == reflect.Interface {
f.ignoreNextType = false
if !v.IsNil() {
v = v.Elem()
}
}
return v
}
// formatPtr handles formatting of pointers by indirecting them as necessary.
func (f *formatState) formatPtr(v reflect.Value) {
// Display nil if top level pointer is nil.
showTypes := f.fs.Flag('#')
if v.IsNil() && (!showTypes || f.ignoreNextType) {
f.fs.Write(nilAngleBytes)
return
}
// Remove pointers at or below the current depth from map used to detect
// circular refs.
for k, depth := range f.pointers {
if depth >= f.depth {
delete(f.pointers, k)
}
}
// Keep list of all dereferenced pointers to possibly show later.
pointerChain := make([]uintptr, 0)
// Figure out how many levels of indirection there are by derferencing
// pointers and unpacking interfaces down the chain while detecting circular
// references.
nilFound := false
cycleFound := false
indirects := 0
ve := v
for ve.Kind() == reflect.Ptr {
if ve.IsNil() {
nilFound = true
break
}
indirects++
addr := ve.Pointer()
pointerChain = append(pointerChain, addr)
if pd, ok := f.pointers[addr]; ok && pd < f.depth {
cycleFound = true
indirects--
break
}
f.pointers[addr] = f.depth
ve = ve.Elem()
if ve.Kind() == reflect.Interface {
if ve.IsNil() {
nilFound = true
break
}
ve = ve.Elem()
}
}
// Display type or indirection level depending on flags.
if showTypes && !f.ignoreNextType {
f.fs.Write(openParenBytes)
f.fs.Write(bytes.Repeat(asteriskBytes, indirects))
f.fs.Write([]byte(ve.Type().String()))
f.fs.Write(closeParenBytes)
} else {
if nilFound || cycleFound {
indirects += strings.Count(ve.Type().String(), "*")
}
f.fs.Write(openAngleBytes)
f.fs.Write([]byte(strings.Repeat("*", indirects)))
f.fs.Write(closeAngleBytes)
}
// Display pointer information depending on flags.
if f.fs.Flag('+') && (len(pointerChain) > 0) {
f.fs.Write(openParenBytes)
for i, addr := range pointerChain {
if i > 0 {
f.fs.Write(pointerChainBytes)
}
printHexPtr(f.fs, addr)
}
f.fs.Write(closeParenBytes)
}
// Display dereferenced value.
switch {
case nilFound:
f.fs.Write(nilAngleBytes)
case cycleFound:
f.fs.Write(circularShortBytes)
default:
f.ignoreNextType = true
f.format(ve)
}
}
// format is the main workhorse for providing the Formatter interface. It
// uses the passed reflect value to figure out what kind of object we are
// dealing with and formats it appropriately. It is a recursive function,
// however circular data structures are detected and handled properly.
func (f *formatState) format(v reflect.Value) {
// Handle invalid reflect values immediately.
kind := v.Kind()
if kind == reflect.Invalid {
f.fs.Write(invalidAngleBytes)
return
}
// Handle pointers specially.
if kind == reflect.Ptr {
f.formatPtr(v)
return
}
// Print type information unless already handled elsewhere.
if !f.ignoreNextType && f.fs.Flag('#') {
f.fs.Write(openParenBytes)
f.fs.Write([]byte(v.Type().String()))
f.fs.Write(closeParenBytes)
}
f.ignoreNextType = false
// Call Stringer/error interfaces if they exist and the handle methods
// flag is enabled.
if !f.cs.DisableMethods {
if (kind != reflect.Invalid) && (kind != reflect.Interface) {
if handled := handleMethods(f.cs, f.fs, v); handled {
return
}
}
}
switch kind {
case reflect.Invalid:
// Do nothing. We should never get here since invalid has already
// been handled above.
case reflect.Bool:
printBool(f.fs, v.Bool())
case reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Int:
printInt(f.fs, v.Int(), 10)
case reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uint:
printUint(f.fs, v.Uint(), 10)
case reflect.Float32:
printFloat(f.fs, v.Float(), 32)
case reflect.Float64:
printFloat(f.fs, v.Float(), 64)
case reflect.Complex64:
printComplex(f.fs, v.Complex(), 32)
case reflect.Complex128:
printComplex(f.fs, v.Complex(), 64)
case reflect.Slice:
if v.IsNil() {
f.fs.Write(nilAngleBytes)
break
}
fallthrough
case reflect.Array:
f.fs.Write(openBracketBytes)
f.depth++
if (f.cs.MaxDepth != 0) && (f.depth > f.cs.MaxDepth) {
f.fs.Write(maxShortBytes)
} else {
numEntries := v.Len()
for i := 0; i < numEntries; i++ {
if i > 0 {
f.fs.Write(spaceBytes)
}
f.ignoreNextType = true
f.format(f.unpackValue(v.Index(i)))
}
}
f.depth--
f.fs.Write(closeBracketBytes)
case reflect.String:
f.fs.Write([]byte(v.String()))
case reflect.Interface:
// The only time we should get here is for nil interfaces due to
// unpackValue calls.
if v.IsNil() {
f.fs.Write(nilAngleBytes)
}
case reflect.Ptr:
// Do nothing. We should never get here since pointers have already
// been handled above.
case reflect.Map:
// nil maps should be indicated as different than empty maps
if v.IsNil() {
f.fs.Write(nilAngleBytes)
break
}
f.fs.Write(openMapBytes)
f.depth++
if (f.cs.MaxDepth != 0) && (f.depth > f.cs.MaxDepth) {
f.fs.Write(maxShortBytes)
} else {
keys := v.MapKeys()
if f.cs.SortKeys {
sortValues(keys, f.cs)
}
for i, key := range keys {
if i > 0 {
f.fs.Write(spaceBytes)
}
f.ignoreNextType = true
f.format(f.unpackValue(key))
f.fs.Write(colonBytes)
f.ignoreNextType = true
f.format(f.unpackValue(v.MapIndex(key)))
}
}
f.depth--
f.fs.Write(closeMapBytes)
case reflect.Struct:
numFields := v.NumField()
f.fs.Write(openBraceBytes)
f.depth++
if (f.cs.MaxDepth != 0) && (f.depth > f.cs.MaxDepth) {
f.fs.Write(maxShortBytes)
} else {
vt := v.Type()
for i := 0; i < numFields; i++ {
if i > 0 {
f.fs.Write(spaceBytes)
}
vtf := vt.Field(i)
if f.fs.Flag('+') || f.fs.Flag('#') {
f.fs.Write([]byte(vtf.Name))
f.fs.Write(colonBytes)
}
f.format(f.unpackValue(v.Field(i)))
}
}
f.depth--
f.fs.Write(closeBraceBytes)
case reflect.Uintptr:
printHexPtr(f.fs, uintptr(v.Uint()))
case reflect.UnsafePointer, reflect.Chan, reflect.Func:
printHexPtr(f.fs, v.Pointer())
// There were not any other types at the time this code was written, but
// fall back to letting the default fmt package handle it if any get added.
default:
format := f.buildDefaultFormat()
if v.CanInterface() {
fmt.Fprintf(f.fs, format, v.Interface())
} else {
fmt.Fprintf(f.fs, format, v.String())
}
}
}
// Format satisfies the fmt.Formatter interface. See NewFormatter for usage
// details.
func (f *formatState) Format(fs fmt.State, verb rune) {
f.fs = fs
// Use standard formatting for verbs that are not v.
if verb != 'v' {
format := f.constructOrigFormat(verb)
fmt.Fprintf(fs, format, f.value)
return
}
if f.value == nil {
if fs.Flag('#') {
fs.Write(interfaceBytes)
}
fs.Write(nilAngleBytes)
return
}
f.format(reflect.ValueOf(f.value))
}
// newFormatter is a helper function to consolidate the logic from the various
// public methods which take varying config states.
func newFormatter(cs *ConfigState, v interface{}) fmt.Formatter {
fs := &formatState{value: v, cs: cs}
fs.pointers = make(map[uintptr]int)
return fs
}
/*
NewFormatter returns a custom formatter that satisfies the fmt.Formatter
interface. As a result, it integrates cleanly with standard fmt package
printing functions. The formatter is useful for inline printing of smaller data
types similar to the standard %v format specifier.
The custom formatter only responds to the %v (most compact), %+v (adds pointer
addresses), %#v (adds types), or %#+v (adds types and pointer addresses) verb
combinations. Any other verbs such as %x and %q will be sent to the the
standard fmt package for formatting. In addition, the custom formatter ignores
the width and precision arguments (however they will still work on the format
specifiers not handled by the custom formatter).
Typically this function shouldn't be called directly. It is much easier to make
use of the custom formatter by calling one of the convenience functions such as
Printf, Println, or Fprintf.
*/
func NewFormatter(v interface{}) fmt.Formatter {
return newFormatter(&Config, v)
}

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/*
* Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/*
This test file is part of the spew package rather than than the spew_test
package because it needs access to internals to properly test certain cases
which are not possible via the public interface since they should never happen.
*/
package spew
import (
"bytes"
"reflect"
"testing"
)
// dummyFmtState implements a fake fmt.State to use for testing invalid
// reflect.Value handling. This is necessary because the fmt package catches
// invalid values before invoking the formatter on them.
type dummyFmtState struct {
bytes.Buffer
}
func (dfs *dummyFmtState) Flag(f int) bool {
return f == int('+')
}
func (dfs *dummyFmtState) Precision() (int, bool) {
return 0, false
}
func (dfs *dummyFmtState) Width() (int, bool) {
return 0, false
}
// TestInvalidReflectValue ensures the dump and formatter code handles an
// invalid reflect value properly. This needs access to internal state since it
// should never happen in real code and therefore can't be tested via the public
// API.
func TestInvalidReflectValue(t *testing.T) {
i := 1
// Dump invalid reflect value.
v := new(reflect.Value)
buf := new(bytes.Buffer)
d := dumpState{w: buf, cs: &Config}
d.dump(*v)
s := buf.String()
want := "<invalid>"
if s != want {
t.Errorf("InvalidReflectValue #%d\n got: %s want: %s", i, s, want)
}
i++
// Formatter invalid reflect value.
buf2 := new(dummyFmtState)
f := formatState{value: *v, cs: &Config, fs: buf2}
f.format(*v)
s = buf2.String()
want = "<invalid>"
if s != want {
t.Errorf("InvalidReflectValue #%d got: %s want: %s", i, s, want)
}
}
// SortValues makes the internal sortValues function available to the test
// package.
func SortValues(values []reflect.Value, cs *ConfigState) {
sortValues(values, cs)
}

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// Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
// Permission to use, copy, modify, and distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
// NOTE: Due to the following build constraints, this file will only be compiled
// when the code is not running on Google App Engine, compiled by GopherJS, and
// "-tags safe" is not added to the go build command line. The "disableunsafe"
// tag is deprecated and thus should not be used.
// +build !js,!appengine,!safe,!disableunsafe,go1.4
/*
This test file is part of the spew package rather than than the spew_test
package because it needs access to internals to properly test certain cases
which are not possible via the public interface since they should never happen.
*/
package spew
import (
"bytes"
"reflect"
"testing"
)
// changeKind uses unsafe to intentionally change the kind of a reflect.Value to
// the maximum kind value which does not exist. This is needed to test the
// fallback code which punts to the standard fmt library for new types that
// might get added to the language.
func changeKind(v *reflect.Value, readOnly bool) {
flags := flagField(v)
if readOnly {
*flags |= flagRO
} else {
*flags &^= flagRO
}
*flags |= flagKindMask
}
// TestAddedReflectValue tests functionaly of the dump and formatter code which
// falls back to the standard fmt library for new types that might get added to
// the language.
func TestAddedReflectValue(t *testing.T) {
i := 1
// Dump using a reflect.Value that is exported.
v := reflect.ValueOf(int8(5))
changeKind(&v, false)
buf := new(bytes.Buffer)
d := dumpState{w: buf, cs: &Config}
d.dump(v)
s := buf.String()
want := "(int8) 5"
if s != want {
t.Errorf("TestAddedReflectValue #%d\n got: %s want: %s", i, s, want)
}
i++
// Dump using a reflect.Value that is not exported.
changeKind(&v, true)
buf.Reset()
d.dump(v)
s = buf.String()
want = "(int8) <int8 Value>"
if s != want {
t.Errorf("TestAddedReflectValue #%d\n got: %s want: %s", i, s, want)
}
i++
// Formatter using a reflect.Value that is exported.
changeKind(&v, false)
buf2 := new(dummyFmtState)
f := formatState{value: v, cs: &Config, fs: buf2}
f.format(v)
s = buf2.String()
want = "5"
if s != want {
t.Errorf("TestAddedReflectValue #%d got: %s want: %s", i, s, want)
}
i++
// Formatter using a reflect.Value that is not exported.
changeKind(&v, true)
buf2.Reset()
f = formatState{value: v, cs: &Config, fs: buf2}
f.format(v)
s = buf2.String()
want = "<int8 Value>"
if s != want {
t.Errorf("TestAddedReflectValue #%d got: %s want: %s", i, s, want)
}
}

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/*
* Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
package spew
import (
"fmt"
"io"
)
// Errorf is a wrapper for fmt.Errorf that treats each argument as if it were
// passed with a default Formatter interface returned by NewFormatter. It
// returns the formatted string as a value that satisfies error. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Errorf(format, spew.NewFormatter(a), spew.NewFormatter(b))
func Errorf(format string, a ...interface{}) (err error) {
return fmt.Errorf(format, convertArgs(a)...)
}
// Fprint is a wrapper for fmt.Fprint that treats each argument as if it were
// passed with a default Formatter interface returned by NewFormatter. It
// returns the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Fprint(w, spew.NewFormatter(a), spew.NewFormatter(b))
func Fprint(w io.Writer, a ...interface{}) (n int, err error) {
return fmt.Fprint(w, convertArgs(a)...)
}
// Fprintf is a wrapper for fmt.Fprintf that treats each argument as if it were
// passed with a default Formatter interface returned by NewFormatter. It
// returns the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Fprintf(w, format, spew.NewFormatter(a), spew.NewFormatter(b))
func Fprintf(w io.Writer, format string, a ...interface{}) (n int, err error) {
return fmt.Fprintf(w, format, convertArgs(a)...)
}
// Fprintln is a wrapper for fmt.Fprintln that treats each argument as if it
// passed with a default Formatter interface returned by NewFormatter. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Fprintln(w, spew.NewFormatter(a), spew.NewFormatter(b))
func Fprintln(w io.Writer, a ...interface{}) (n int, err error) {
return fmt.Fprintln(w, convertArgs(a)...)
}
// Print is a wrapper for fmt.Print that treats each argument as if it were
// passed with a default Formatter interface returned by NewFormatter. It
// returns the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Print(spew.NewFormatter(a), spew.NewFormatter(b))
func Print(a ...interface{}) (n int, err error) {
return fmt.Print(convertArgs(a)...)
}
// Printf is a wrapper for fmt.Printf that treats each argument as if it were
// passed with a default Formatter interface returned by NewFormatter. It
// returns the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Printf(format, spew.NewFormatter(a), spew.NewFormatter(b))
func Printf(format string, a ...interface{}) (n int, err error) {
return fmt.Printf(format, convertArgs(a)...)
}
// Println is a wrapper for fmt.Println that treats each argument as if it were
// passed with a default Formatter interface returned by NewFormatter. It
// returns the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Println(spew.NewFormatter(a), spew.NewFormatter(b))
func Println(a ...interface{}) (n int, err error) {
return fmt.Println(convertArgs(a)...)
}
// Sprint is a wrapper for fmt.Sprint that treats each argument as if it were
// passed with a default Formatter interface returned by NewFormatter. It
// returns the resulting string. See NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Sprint(spew.NewFormatter(a), spew.NewFormatter(b))
func Sprint(a ...interface{}) string {
return fmt.Sprint(convertArgs(a)...)
}
// Sprintf is a wrapper for fmt.Sprintf that treats each argument as if it were
// passed with a default Formatter interface returned by NewFormatter. It
// returns the resulting string. See NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Sprintf(format, spew.NewFormatter(a), spew.NewFormatter(b))
func Sprintf(format string, a ...interface{}) string {
return fmt.Sprintf(format, convertArgs(a)...)
}
// Sprintln is a wrapper for fmt.Sprintln that treats each argument as if it
// were passed with a default Formatter interface returned by NewFormatter. It
// returns the resulting string. See NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Sprintln(spew.NewFormatter(a), spew.NewFormatter(b))
func Sprintln(a ...interface{}) string {
return fmt.Sprintln(convertArgs(a)...)
}
// convertArgs accepts a slice of arguments and returns a slice of the same
// length with each argument converted to a default spew Formatter interface.
func convertArgs(args []interface{}) (formatters []interface{}) {
formatters = make([]interface{}, len(args))
for index, arg := range args {
formatters[index] = NewFormatter(arg)
}
return formatters
}

320
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/*
* Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
package spew_test
import (
"bytes"
"fmt"
"io/ioutil"
"os"
"testing"
"github.com/davecgh/go-spew/spew"
)
// spewFunc is used to identify which public function of the spew package or
// ConfigState a test applies to.
type spewFunc int
const (
fCSFdump spewFunc = iota
fCSFprint
fCSFprintf
fCSFprintln
fCSPrint
fCSPrintln
fCSSdump
fCSSprint
fCSSprintf
fCSSprintln
fCSErrorf
fCSNewFormatter
fErrorf
fFprint
fFprintln
fPrint
fPrintln
fSdump
fSprint
fSprintf
fSprintln
)
// Map of spewFunc values to names for pretty printing.
var spewFuncStrings = map[spewFunc]string{
fCSFdump: "ConfigState.Fdump",
fCSFprint: "ConfigState.Fprint",
fCSFprintf: "ConfigState.Fprintf",
fCSFprintln: "ConfigState.Fprintln",
fCSSdump: "ConfigState.Sdump",
fCSPrint: "ConfigState.Print",
fCSPrintln: "ConfigState.Println",
fCSSprint: "ConfigState.Sprint",
fCSSprintf: "ConfigState.Sprintf",
fCSSprintln: "ConfigState.Sprintln",
fCSErrorf: "ConfigState.Errorf",
fCSNewFormatter: "ConfigState.NewFormatter",
fErrorf: "spew.Errorf",
fFprint: "spew.Fprint",
fFprintln: "spew.Fprintln",
fPrint: "spew.Print",
fPrintln: "spew.Println",
fSdump: "spew.Sdump",
fSprint: "spew.Sprint",
fSprintf: "spew.Sprintf",
fSprintln: "spew.Sprintln",
}
func (f spewFunc) String() string {
if s, ok := spewFuncStrings[f]; ok {
return s
}
return fmt.Sprintf("Unknown spewFunc (%d)", int(f))
}
// spewTest is used to describe a test to be performed against the public
// functions of the spew package or ConfigState.
type spewTest struct {
cs *spew.ConfigState
f spewFunc
format string
in interface{}
want string
}
// spewTests houses the tests to be performed against the public functions of
// the spew package and ConfigState.
//
// These tests are only intended to ensure the public functions are exercised
// and are intentionally not exhaustive of types. The exhaustive type
// tests are handled in the dump and format tests.
var spewTests []spewTest
// redirStdout is a helper function to return the standard output from f as a
// byte slice.
func redirStdout(f func()) ([]byte, error) {
tempFile, err := ioutil.TempFile("", "ss-test")
if err != nil {
return nil, err
}
fileName := tempFile.Name()
defer os.Remove(fileName) // Ignore error
origStdout := os.Stdout
os.Stdout = tempFile
f()
os.Stdout = origStdout
tempFile.Close()
return ioutil.ReadFile(fileName)
}
func initSpewTests() {
// Config states with various settings.
scsDefault := spew.NewDefaultConfig()
scsNoMethods := &spew.ConfigState{Indent: " ", DisableMethods: true}
scsNoPmethods := &spew.ConfigState{Indent: " ", DisablePointerMethods: true}
scsMaxDepth := &spew.ConfigState{Indent: " ", MaxDepth: 1}
scsContinue := &spew.ConfigState{Indent: " ", ContinueOnMethod: true}
scsNoPtrAddr := &spew.ConfigState{DisablePointerAddresses: true}
scsNoCap := &spew.ConfigState{DisableCapacities: true}
// Variables for tests on types which implement Stringer interface with and
// without a pointer receiver.
ts := stringer("test")
tps := pstringer("test")
type ptrTester struct {
s *struct{}
}
tptr := &ptrTester{s: &struct{}{}}
// depthTester is used to test max depth handling for structs, array, slices
// and maps.
type depthTester struct {
ic indirCir1
arr [1]string
slice []string
m map[string]int
}
dt := depthTester{indirCir1{nil}, [1]string{"arr"}, []string{"slice"},
map[string]int{"one": 1}}
// Variable for tests on types which implement error interface.
te := customError(10)
spewTests = []spewTest{
{scsDefault, fCSFdump, "", int8(127), "(int8) 127\n"},
{scsDefault, fCSFprint, "", int16(32767), "32767"},
{scsDefault, fCSFprintf, "%v", int32(2147483647), "2147483647"},
{scsDefault, fCSFprintln, "", int(2147483647), "2147483647\n"},
{scsDefault, fCSPrint, "", int64(9223372036854775807), "9223372036854775807"},
{scsDefault, fCSPrintln, "", uint8(255), "255\n"},
{scsDefault, fCSSdump, "", uint8(64), "(uint8) 64\n"},
{scsDefault, fCSSprint, "", complex(1, 2), "(1+2i)"},
{scsDefault, fCSSprintf, "%v", complex(float32(3), 4), "(3+4i)"},
{scsDefault, fCSSprintln, "", complex(float64(5), 6), "(5+6i)\n"},
{scsDefault, fCSErrorf, "%#v", uint16(65535), "(uint16)65535"},
{scsDefault, fCSNewFormatter, "%v", uint32(4294967295), "4294967295"},
{scsDefault, fErrorf, "%v", uint64(18446744073709551615), "18446744073709551615"},
{scsDefault, fFprint, "", float32(3.14), "3.14"},
{scsDefault, fFprintln, "", float64(6.28), "6.28\n"},
{scsDefault, fPrint, "", true, "true"},
{scsDefault, fPrintln, "", false, "false\n"},
{scsDefault, fSdump, "", complex(-10, -20), "(complex128) (-10-20i)\n"},
{scsDefault, fSprint, "", complex(-1, -2), "(-1-2i)"},
{scsDefault, fSprintf, "%v", complex(float32(-3), -4), "(-3-4i)"},
{scsDefault, fSprintln, "", complex(float64(-5), -6), "(-5-6i)\n"},
{scsNoMethods, fCSFprint, "", ts, "test"},
{scsNoMethods, fCSFprint, "", &ts, "<*>test"},
{scsNoMethods, fCSFprint, "", tps, "test"},
{scsNoMethods, fCSFprint, "", &tps, "<*>test"},
{scsNoPmethods, fCSFprint, "", ts, "stringer test"},
{scsNoPmethods, fCSFprint, "", &ts, "<*>stringer test"},
{scsNoPmethods, fCSFprint, "", tps, "test"},
{scsNoPmethods, fCSFprint, "", &tps, "<*>stringer test"},
{scsMaxDepth, fCSFprint, "", dt, "{{<max>} [<max>] [<max>] map[<max>]}"},
{scsMaxDepth, fCSFdump, "", dt, "(spew_test.depthTester) {\n" +
" ic: (spew_test.indirCir1) {\n <max depth reached>\n },\n" +
" arr: ([1]string) (len=1 cap=1) {\n <max depth reached>\n },\n" +
" slice: ([]string) (len=1 cap=1) {\n <max depth reached>\n },\n" +
" m: (map[string]int) (len=1) {\n <max depth reached>\n }\n}\n"},
{scsContinue, fCSFprint, "", ts, "(stringer test) test"},
{scsContinue, fCSFdump, "", ts, "(spew_test.stringer) " +
"(len=4) (stringer test) \"test\"\n"},
{scsContinue, fCSFprint, "", te, "(error: 10) 10"},
{scsContinue, fCSFdump, "", te, "(spew_test.customError) " +
"(error: 10) 10\n"},
{scsNoPtrAddr, fCSFprint, "", tptr, "<*>{<*>{}}"},
{scsNoPtrAddr, fCSSdump, "", tptr, "(*spew_test.ptrTester)({\ns: (*struct {})({\n})\n})\n"},
{scsNoCap, fCSSdump, "", make([]string, 0, 10), "([]string) {\n}\n"},
{scsNoCap, fCSSdump, "", make([]string, 1, 10), "([]string) (len=1) {\n(string) \"\"\n}\n"},
}
}
// TestSpew executes all of the tests described by spewTests.
func TestSpew(t *testing.T) {
initSpewTests()
t.Logf("Running %d tests", len(spewTests))
for i, test := range spewTests {
buf := new(bytes.Buffer)
switch test.f {
case fCSFdump:
test.cs.Fdump(buf, test.in)
case fCSFprint:
test.cs.Fprint(buf, test.in)
case fCSFprintf:
test.cs.Fprintf(buf, test.format, test.in)
case fCSFprintln:
test.cs.Fprintln(buf, test.in)
case fCSPrint:
b, err := redirStdout(func() { test.cs.Print(test.in) })
if err != nil {
t.Errorf("%v #%d %v", test.f, i, err)
continue
}
buf.Write(b)
case fCSPrintln:
b, err := redirStdout(func() { test.cs.Println(test.in) })
if err != nil {
t.Errorf("%v #%d %v", test.f, i, err)
continue
}
buf.Write(b)
case fCSSdump:
str := test.cs.Sdump(test.in)
buf.WriteString(str)
case fCSSprint:
str := test.cs.Sprint(test.in)
buf.WriteString(str)
case fCSSprintf:
str := test.cs.Sprintf(test.format, test.in)
buf.WriteString(str)
case fCSSprintln:
str := test.cs.Sprintln(test.in)
buf.WriteString(str)
case fCSErrorf:
err := test.cs.Errorf(test.format, test.in)
buf.WriteString(err.Error())
case fCSNewFormatter:
fmt.Fprintf(buf, test.format, test.cs.NewFormatter(test.in))
case fErrorf:
err := spew.Errorf(test.format, test.in)
buf.WriteString(err.Error())
case fFprint:
spew.Fprint(buf, test.in)
case fFprintln:
spew.Fprintln(buf, test.in)
case fPrint:
b, err := redirStdout(func() { spew.Print(test.in) })
if err != nil {
t.Errorf("%v #%d %v", test.f, i, err)
continue
}
buf.Write(b)
case fPrintln:
b, err := redirStdout(func() { spew.Println(test.in) })
if err != nil {
t.Errorf("%v #%d %v", test.f, i, err)
continue
}
buf.Write(b)
case fSdump:
str := spew.Sdump(test.in)
buf.WriteString(str)
case fSprint:
str := spew.Sprint(test.in)
buf.WriteString(str)
case fSprintf:
str := spew.Sprintf(test.format, test.in)
buf.WriteString(str)
case fSprintln:
str := spew.Sprintln(test.in)
buf.WriteString(str)
default:
t.Errorf("%v #%d unrecognized function", test.f, i)
continue
}
s := buf.String()
if test.want != s {
t.Errorf("ConfigState #%d\n got: %s want: %s", i, s, test.want)
continue
}
}
}

82
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// Copyright (c) 2013 Dave Collins <dave@davec.name>
//
// Permission to use, copy, modify, and distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
// NOTE: Due to the following build constraints, this file will only be compiled
// when both cgo is supported and "-tags testcgo" is added to the go test
// command line. This code should really only be in the dumpcgo_test.go file,
// but unfortunately Go will not allow cgo in test files, so this is a
// workaround to allow cgo types to be tested. This configuration is used
// because spew itself does not require cgo to run even though it does handle
// certain cgo types specially. Rather than forcing all clients to require cgo
// and an external C compiler just to run the tests, this scheme makes them
// optional.
// +build cgo,testcgo
package testdata
/*
#include <stdint.h>
typedef unsigned char custom_uchar_t;
char *ncp = 0;
char *cp = "test";
char ca[6] = {'t', 'e', 's', 't', '2', '\0'};
unsigned char uca[6] = {'t', 'e', 's', 't', '3', '\0'};
signed char sca[6] = {'t', 'e', 's', 't', '4', '\0'};
uint8_t ui8ta[6] = {'t', 'e', 's', 't', '5', '\0'};
custom_uchar_t tuca[6] = {'t', 'e', 's', 't', '6', '\0'};
*/
import "C"
// GetCgoNullCharPointer returns a null char pointer via cgo. This is only
// used for tests.
func GetCgoNullCharPointer() interface{} {
return C.ncp
}
// GetCgoCharPointer returns a char pointer via cgo. This is only used for
// tests.
func GetCgoCharPointer() interface{} {
return C.cp
}
// GetCgoCharArray returns a char array via cgo and the array's len and cap.
// This is only used for tests.
func GetCgoCharArray() (interface{}, int, int) {
return C.ca, len(C.ca), cap(C.ca)
}
// GetCgoUnsignedCharArray returns an unsigned char array via cgo and the
// array's len and cap. This is only used for tests.
func GetCgoUnsignedCharArray() (interface{}, int, int) {
return C.uca, len(C.uca), cap(C.uca)
}
// GetCgoSignedCharArray returns a signed char array via cgo and the array's len
// and cap. This is only used for tests.
func GetCgoSignedCharArray() (interface{}, int, int) {
return C.sca, len(C.sca), cap(C.sca)
}
// GetCgoUint8tArray returns a uint8_t array via cgo and the array's len and
// cap. This is only used for tests.
func GetCgoUint8tArray() (interface{}, int, int) {
return C.ui8ta, len(C.ui8ta), cap(C.ui8ta)
}
// GetCgoTypdefedUnsignedCharArray returns a typedefed unsigned char array via
// cgo and the array's len and cap. This is only used for tests.
func GetCgoTypdefedUnsignedCharArray() (interface{}, int, int) {
return C.tuca, len(C.tuca), cap(C.tuca)
}

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github.com/davecgh/go-spew/spew/dump.go dumpState.dump 100.00% (88/88)
github.com/davecgh/go-spew/spew/format.go formatState.format 100.00% (82/82)
github.com/davecgh/go-spew/spew/format.go formatState.formatPtr 100.00% (52/52)
github.com/davecgh/go-spew/spew/dump.go dumpState.dumpPtr 100.00% (44/44)
github.com/davecgh/go-spew/spew/dump.go dumpState.dumpSlice 100.00% (39/39)
github.com/davecgh/go-spew/spew/common.go handleMethods 100.00% (30/30)
github.com/davecgh/go-spew/spew/common.go printHexPtr 100.00% (18/18)
github.com/davecgh/go-spew/spew/common.go unsafeReflectValue 100.00% (13/13)
github.com/davecgh/go-spew/spew/format.go formatState.constructOrigFormat 100.00% (12/12)
github.com/davecgh/go-spew/spew/dump.go fdump 100.00% (11/11)
github.com/davecgh/go-spew/spew/format.go formatState.Format 100.00% (11/11)
github.com/davecgh/go-spew/spew/common.go init 100.00% (10/10)
github.com/davecgh/go-spew/spew/common.go printComplex 100.00% (9/9)
github.com/davecgh/go-spew/spew/common.go valuesSorter.Less 100.00% (8/8)
github.com/davecgh/go-spew/spew/format.go formatState.buildDefaultFormat 100.00% (7/7)
github.com/davecgh/go-spew/spew/format.go formatState.unpackValue 100.00% (5/5)
github.com/davecgh/go-spew/spew/dump.go dumpState.indent 100.00% (4/4)
github.com/davecgh/go-spew/spew/common.go catchPanic 100.00% (4/4)
github.com/davecgh/go-spew/spew/config.go ConfigState.convertArgs 100.00% (4/4)
github.com/davecgh/go-spew/spew/spew.go convertArgs 100.00% (4/4)
github.com/davecgh/go-spew/spew/format.go newFormatter 100.00% (3/3)
github.com/davecgh/go-spew/spew/dump.go Sdump 100.00% (3/3)
github.com/davecgh/go-spew/spew/common.go printBool 100.00% (3/3)
github.com/davecgh/go-spew/spew/common.go sortValues 100.00% (3/3)
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github.com/davecgh/go-spew/spew/common.go printFloat 100.00% (1/1)
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language: go
go:
- 1.8.x
- tip

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vendor/github.com/fatih/color/Gopkg.lock generated vendored Normal file
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# This file is autogenerated, do not edit; changes may be undone by the next 'dep ensure'.
[[projects]]
name = "github.com/mattn/go-colorable"
packages = ["."]
revision = "167de6bfdfba052fa6b2d3664c8f5272e23c9072"
version = "v0.0.9"
[[projects]]
name = "github.com/mattn/go-isatty"
packages = ["."]
revision = "0360b2af4f38e8d38c7fce2a9f4e702702d73a39"
version = "v0.0.3"
[[projects]]
branch = "master"
name = "golang.org/x/sys"
packages = ["unix"]
revision = "37707fdb30a5b38865cfb95e5aab41707daec7fd"
[solve-meta]
analyzer-name = "dep"
analyzer-version = 1
inputs-digest = "e8a50671c3cb93ea935bf210b1cd20702876b9d9226129be581ef646d1565cdc"
solver-name = "gps-cdcl"
solver-version = 1

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# Gopkg.toml example
#
# Refer to https://github.com/golang/dep/blob/master/docs/Gopkg.toml.md
# for detailed Gopkg.toml documentation.
#
# required = ["github.com/user/thing/cmd/thing"]
# ignored = ["github.com/user/project/pkgX", "bitbucket.org/user/project/pkgA/pkgY"]
#
# [[constraint]]
# name = "github.com/user/project"
# version = "1.0.0"
#
# [[constraint]]
# name = "github.com/user/project2"
# branch = "dev"
# source = "github.com/myfork/project2"
#
# [[override]]
# name = "github.com/x/y"
# version = "2.4.0"
[[constraint]]
name = "github.com/mattn/go-colorable"
version = "0.0.9"
[[constraint]]
name = "github.com/mattn/go-isatty"
version = "0.0.3"

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The MIT License (MIT)
Copyright (c) 2013 Fatih Arslan
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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# Color [![GoDoc](https://godoc.org/github.com/fatih/color?status.svg)](https://godoc.org/github.com/fatih/color) [![Build Status](https://img.shields.io/travis/fatih/color.svg?style=flat-square)](https://travis-ci.org/fatih/color)
Color lets you use colorized outputs in terms of [ANSI Escape
Codes](http://en.wikipedia.org/wiki/ANSI_escape_code#Colors) in Go (Golang). It
has support for Windows too! The API can be used in several ways, pick one that
suits you.
![Color](https://i.imgur.com/c1JI0lA.png)
## Install
```bash
go get github.com/fatih/color
```
Note that the `vendor` folder is here for stability. Remove the folder if you
already have the dependencies in your GOPATH.
## Examples
### Standard colors
```go
// Print with default helper functions
color.Cyan("Prints text in cyan.")
// A newline will be appended automatically
color.Blue("Prints %s in blue.", "text")
// These are using the default foreground colors
color.Red("We have red")
color.Magenta("And many others ..")
```
### Mix and reuse colors
```go
// Create a new color object
c := color.New(color.FgCyan).Add(color.Underline)
c.Println("Prints cyan text with an underline.")
// Or just add them to New()
d := color.New(color.FgCyan, color.Bold)
d.Printf("This prints bold cyan %s\n", "too!.")
// Mix up foreground and background colors, create new mixes!
red := color.New(color.FgRed)
boldRed := red.Add(color.Bold)
boldRed.Println("This will print text in bold red.")
whiteBackground := red.Add(color.BgWhite)
whiteBackground.Println("Red text with white background.")
```
### Use your own output (io.Writer)
```go
// Use your own io.Writer output
color.New(color.FgBlue).Fprintln(myWriter, "blue color!")
blue := color.New(color.FgBlue)
blue.Fprint(writer, "This will print text in blue.")
```
### Custom print functions (PrintFunc)
```go
// Create a custom print function for convenience
red := color.New(color.FgRed).PrintfFunc()
red("Warning")
red("Error: %s", err)
// Mix up multiple attributes
notice := color.New(color.Bold, color.FgGreen).PrintlnFunc()
notice("Don't forget this...")
```
### Custom fprint functions (FprintFunc)
```go
blue := color.New(FgBlue).FprintfFunc()
blue(myWriter, "important notice: %s", stars)
// Mix up with multiple attributes
success := color.New(color.Bold, color.FgGreen).FprintlnFunc()
success(myWriter, "Don't forget this...")
```
### Insert into noncolor strings (SprintFunc)
```go
// Create SprintXxx functions to mix strings with other non-colorized strings:
yellow := color.New(color.FgYellow).SprintFunc()
red := color.New(color.FgRed).SprintFunc()
fmt.Printf("This is a %s and this is %s.\n", yellow("warning"), red("error"))
info := color.New(color.FgWhite, color.BgGreen).SprintFunc()
fmt.Printf("This %s rocks!\n", info("package"))
// Use helper functions
fmt.Println("This", color.RedString("warning"), "should be not neglected.")
fmt.Printf("%v %v\n", color.GreenString("Info:"), "an important message.")
// Windows supported too! Just don't forget to change the output to color.Output
fmt.Fprintf(color.Output, "Windows support: %s", color.GreenString("PASS"))
```
### Plug into existing code
```go
// Use handy standard colors
color.Set(color.FgYellow)
fmt.Println("Existing text will now be in yellow")
fmt.Printf("This one %s\n", "too")
color.Unset() // Don't forget to unset
// You can mix up parameters
color.Set(color.FgMagenta, color.Bold)
defer color.Unset() // Use it in your function
fmt.Println("All text will now be bold magenta.")
```
### Disable/Enable color
There might be a case where you want to explicitly disable/enable color output. the
`go-isatty` package will automatically disable color output for non-tty output streams
(for example if the output were piped directly to `less`)
`Color` has support to disable/enable colors both globally and for single color
definitions. For example suppose you have a CLI app and a `--no-color` bool flag. You
can easily disable the color output with:
```go
var flagNoColor = flag.Bool("no-color", false, "Disable color output")
if *flagNoColor {
color.NoColor = true // disables colorized output
}
```
It also has support for single color definitions (local). You can
disable/enable color output on the fly:
```go
c := color.New(color.FgCyan)
c.Println("Prints cyan text")
c.DisableColor()
c.Println("This is printed without any color")
c.EnableColor()
c.Println("This prints again cyan...")
```
## Todo
* Save/Return previous values
* Evaluate fmt.Formatter interface
## Credits
* [Fatih Arslan](https://github.com/fatih)
* Windows support via @mattn: [colorable](https://github.com/mattn/go-colorable)
## License
The MIT License (MIT) - see [`LICENSE.md`](https://github.com/fatih/color/blob/master/LICENSE.md) for more details

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package color
import (
"fmt"
"io"
"os"
"strconv"
"strings"
"sync"
"github.com/mattn/go-colorable"
"github.com/mattn/go-isatty"
)
var (
// NoColor defines if the output is colorized or not. It's dynamically set to
// false or true based on the stdout's file descriptor referring to a terminal
// or not. This is a global option and affects all colors. For more control
// over each color block use the methods DisableColor() individually.
NoColor = os.Getenv("TERM") == "dumb" ||
(!isatty.IsTerminal(os.Stdout.Fd()) && !isatty.IsCygwinTerminal(os.Stdout.Fd()))
// Output defines the standard output of the print functions. By default
// os.Stdout is used.
Output = colorable.NewColorableStdout()
// Error defines a color supporting writer for os.Stderr.
Error = colorable.NewColorableStderr()
// colorsCache is used to reduce the count of created Color objects and
// allows to reuse already created objects with required Attribute.
colorsCache = make(map[Attribute]*Color)
colorsCacheMu sync.Mutex // protects colorsCache
)
// Color defines a custom color object which is defined by SGR parameters.
type Color struct {
params []Attribute
noColor *bool
}
// Attribute defines a single SGR Code
type Attribute int
const escape = "\x1b"
// Base attributes
const (
Reset Attribute = iota
Bold
Faint
Italic
Underline
BlinkSlow
BlinkRapid
ReverseVideo
Concealed
CrossedOut
)
// Foreground text colors
const (
FgBlack Attribute = iota + 30
FgRed
FgGreen
FgYellow
FgBlue
FgMagenta
FgCyan
FgWhite
)
// Foreground Hi-Intensity text colors
const (
FgHiBlack Attribute = iota + 90
FgHiRed
FgHiGreen
FgHiYellow
FgHiBlue
FgHiMagenta
FgHiCyan
FgHiWhite
)
// Background text colors
const (
BgBlack Attribute = iota + 40
BgRed
BgGreen
BgYellow
BgBlue
BgMagenta
BgCyan
BgWhite
)
// Background Hi-Intensity text colors
const (
BgHiBlack Attribute = iota + 100
BgHiRed
BgHiGreen
BgHiYellow
BgHiBlue
BgHiMagenta
BgHiCyan
BgHiWhite
)
// New returns a newly created color object.
func New(value ...Attribute) *Color {
c := &Color{params: make([]Attribute, 0)}
c.Add(value...)
return c
}
// Set sets the given parameters immediately. It will change the color of
// output with the given SGR parameters until color.Unset() is called.
func Set(p ...Attribute) *Color {
c := New(p...)
c.Set()
return c
}
// Unset resets all escape attributes and clears the output. Usually should
// be called after Set().
func Unset() {
if NoColor {
return
}
fmt.Fprintf(Output, "%s[%dm", escape, Reset)
}
// Set sets the SGR sequence.
func (c *Color) Set() *Color {
if c.isNoColorSet() {
return c
}
fmt.Fprintf(Output, c.format())
return c
}
func (c *Color) unset() {
if c.isNoColorSet() {
return
}
Unset()
}
func (c *Color) setWriter(w io.Writer) *Color {
if c.isNoColorSet() {
return c
}
fmt.Fprintf(w, c.format())
return c
}
func (c *Color) unsetWriter(w io.Writer) {
if c.isNoColorSet() {
return
}
if NoColor {
return
}
fmt.Fprintf(w, "%s[%dm", escape, Reset)
}
// Add is used to chain SGR parameters. Use as many as parameters to combine
// and create custom color objects. Example: Add(color.FgRed, color.Underline).
func (c *Color) Add(value ...Attribute) *Color {
c.params = append(c.params, value...)
return c
}
func (c *Color) prepend(value Attribute) {
c.params = append(c.params, 0)
copy(c.params[1:], c.params[0:])
c.params[0] = value
}
// Fprint formats using the default formats for its operands and writes to w.
// Spaces are added between operands when neither is a string.
// It returns the number of bytes written and any write error encountered.
// On Windows, users should wrap w with colorable.NewColorable() if w is of
// type *os.File.
func (c *Color) Fprint(w io.Writer, a ...interface{}) (n int, err error) {
c.setWriter(w)
defer c.unsetWriter(w)
return fmt.Fprint(w, a...)
}
// Print formats using the default formats for its operands and writes to
// standard output. Spaces are added between operands when neither is a
// string. It returns the number of bytes written and any write error
// encountered. This is the standard fmt.Print() method wrapped with the given
// color.
func (c *Color) Print(a ...interface{}) (n int, err error) {
c.Set()
defer c.unset()
return fmt.Fprint(Output, a...)
}
// Fprintf formats according to a format specifier and writes to w.
// It returns the number of bytes written and any write error encountered.
// On Windows, users should wrap w with colorable.NewColorable() if w is of
// type *os.File.
func (c *Color) Fprintf(w io.Writer, format string, a ...interface{}) (n int, err error) {
c.setWriter(w)
defer c.unsetWriter(w)
return fmt.Fprintf(w, format, a...)
}
// Printf formats according to a format specifier and writes to standard output.
// It returns the number of bytes written and any write error encountered.
// This is the standard fmt.Printf() method wrapped with the given color.
func (c *Color) Printf(format string, a ...interface{}) (n int, err error) {
c.Set()
defer c.unset()
return fmt.Fprintf(Output, format, a...)
}
// Fprintln formats using the default formats for its operands and writes to w.
// Spaces are always added between operands and a newline is appended.
// On Windows, users should wrap w with colorable.NewColorable() if w is of
// type *os.File.
func (c *Color) Fprintln(w io.Writer, a ...interface{}) (n int, err error) {
c.setWriter(w)
defer c.unsetWriter(w)
return fmt.Fprintln(w, a...)
}
// Println formats using the default formats for its operands and writes to
// standard output. Spaces are always added between operands and a newline is
// appended. It returns the number of bytes written and any write error
// encountered. This is the standard fmt.Print() method wrapped with the given
// color.
func (c *Color) Println(a ...interface{}) (n int, err error) {
c.Set()
defer c.unset()
return fmt.Fprintln(Output, a...)
}
// Sprint is just like Print, but returns a string instead of printing it.
func (c *Color) Sprint(a ...interface{}) string {
return c.wrap(fmt.Sprint(a...))
}
// Sprintln is just like Println, but returns a string instead of printing it.
func (c *Color) Sprintln(a ...interface{}) string {
return c.wrap(fmt.Sprintln(a...))
}
// Sprintf is just like Printf, but returns a string instead of printing it.
func (c *Color) Sprintf(format string, a ...interface{}) string {
return c.wrap(fmt.Sprintf(format, a...))
}
// FprintFunc returns a new function that prints the passed arguments as
// colorized with color.Fprint().
func (c *Color) FprintFunc() func(w io.Writer, a ...interface{}) {
return func(w io.Writer, a ...interface{}) {
c.Fprint(w, a...)
}
}
// PrintFunc returns a new function that prints the passed arguments as
// colorized with color.Print().
func (c *Color) PrintFunc() func(a ...interface{}) {
return func(a ...interface{}) {
c.Print(a...)
}
}
// FprintfFunc returns a new function that prints the passed arguments as
// colorized with color.Fprintf().
func (c *Color) FprintfFunc() func(w io.Writer, format string, a ...interface{}) {
return func(w io.Writer, format string, a ...interface{}) {
c.Fprintf(w, format, a...)
}
}
// PrintfFunc returns a new function that prints the passed arguments as
// colorized with color.Printf().
func (c *Color) PrintfFunc() func(format string, a ...interface{}) {
return func(format string, a ...interface{}) {
c.Printf(format, a...)
}
}
// FprintlnFunc returns a new function that prints the passed arguments as
// colorized with color.Fprintln().
func (c *Color) FprintlnFunc() func(w io.Writer, a ...interface{}) {
return func(w io.Writer, a ...interface{}) {
c.Fprintln(w, a...)
}
}
// PrintlnFunc returns a new function that prints the passed arguments as
// colorized with color.Println().
func (c *Color) PrintlnFunc() func(a ...interface{}) {
return func(a ...interface{}) {
c.Println(a...)
}
}
// SprintFunc returns a new function that returns colorized strings for the
// given arguments with fmt.Sprint(). Useful to put into or mix into other
// string. Windows users should use this in conjunction with color.Output, example:
//
// put := New(FgYellow).SprintFunc()
// fmt.Fprintf(color.Output, "This is a %s", put("warning"))
func (c *Color) SprintFunc() func(a ...interface{}) string {
return func(a ...interface{}) string {
return c.wrap(fmt.Sprint(a...))
}
}
// SprintfFunc returns a new function that returns colorized strings for the
// given arguments with fmt.Sprintf(). Useful to put into or mix into other
// string. Windows users should use this in conjunction with color.Output.
func (c *Color) SprintfFunc() func(format string, a ...interface{}) string {
return func(format string, a ...interface{}) string {
return c.wrap(fmt.Sprintf(format, a...))
}
}
// SprintlnFunc returns a new function that returns colorized strings for the
// given arguments with fmt.Sprintln(). Useful to put into or mix into other
// string. Windows users should use this in conjunction with color.Output.
func (c *Color) SprintlnFunc() func(a ...interface{}) string {
return func(a ...interface{}) string {
return c.wrap(fmt.Sprintln(a...))
}
}
// sequence returns a formatted SGR sequence to be plugged into a "\x1b[...m"
// an example output might be: "1;36" -> bold cyan
func (c *Color) sequence() string {
format := make([]string, len(c.params))
for i, v := range c.params {
format[i] = strconv.Itoa(int(v))
}
return strings.Join(format, ";")
}
// wrap wraps the s string with the colors attributes. The string is ready to
// be printed.
func (c *Color) wrap(s string) string {
if c.isNoColorSet() {
return s
}
return c.format() + s + c.unformat()
}
func (c *Color) format() string {
return fmt.Sprintf("%s[%sm", escape, c.sequence())
}
func (c *Color) unformat() string {
return fmt.Sprintf("%s[%dm", escape, Reset)
}
// DisableColor disables the color output. Useful to not change any existing
// code and still being able to output. Can be used for flags like
// "--no-color". To enable back use EnableColor() method.
func (c *Color) DisableColor() {
c.noColor = boolPtr(true)
}
// EnableColor enables the color output. Use it in conjunction with
// DisableColor(). Otherwise this method has no side effects.
func (c *Color) EnableColor() {
c.noColor = boolPtr(false)
}
func (c *Color) isNoColorSet() bool {
// check first if we have user setted action
if c.noColor != nil {
return *c.noColor
}
// if not return the global option, which is disabled by default
return NoColor
}
// Equals returns a boolean value indicating whether two colors are equal.
func (c *Color) Equals(c2 *Color) bool {
if len(c.params) != len(c2.params) {
return false
}
for _, attr := range c.params {
if !c2.attrExists(attr) {
return false
}
}
return true
}
func (c *Color) attrExists(a Attribute) bool {
for _, attr := range c.params {
if attr == a {
return true
}
}
return false
}
func boolPtr(v bool) *bool {
return &v
}
func getCachedColor(p Attribute) *Color {
colorsCacheMu.Lock()
defer colorsCacheMu.Unlock()
c, ok := colorsCache[p]
if !ok {
c = New(p)
colorsCache[p] = c
}
return c
}
func colorPrint(format string, p Attribute, a ...interface{}) {
c := getCachedColor(p)
if !strings.HasSuffix(format, "\n") {
format += "\n"
}
if len(a) == 0 {
c.Print(format)
} else {
c.Printf(format, a...)
}
}
func colorString(format string, p Attribute, a ...interface{}) string {
c := getCachedColor(p)
if len(a) == 0 {
return c.SprintFunc()(format)
}
return c.SprintfFunc()(format, a...)
}
// Black is a convenient helper function to print with black foreground. A
// newline is appended to format by default.
func Black(format string, a ...interface{}) { colorPrint(format, FgBlack, a...) }
// Red is a convenient helper function to print with red foreground. A
// newline is appended to format by default.
func Red(format string, a ...interface{}) { colorPrint(format, FgRed, a...) }
// Green is a convenient helper function to print with green foreground. A
// newline is appended to format by default.
func Green(format string, a ...interface{}) { colorPrint(format, FgGreen, a...) }
// Yellow is a convenient helper function to print with yellow foreground.
// A newline is appended to format by default.
func Yellow(format string, a ...interface{}) { colorPrint(format, FgYellow, a...) }
// Blue is a convenient helper function to print with blue foreground. A
// newline is appended to format by default.
func Blue(format string, a ...interface{}) { colorPrint(format, FgBlue, a...) }
// Magenta is a convenient helper function to print with magenta foreground.
// A newline is appended to format by default.
func Magenta(format string, a ...interface{}) { colorPrint(format, FgMagenta, a...) }
// Cyan is a convenient helper function to print with cyan foreground. A
// newline is appended to format by default.
func Cyan(format string, a ...interface{}) { colorPrint(format, FgCyan, a...) }
// White is a convenient helper function to print with white foreground. A
// newline is appended to format by default.
func White(format string, a ...interface{}) { colorPrint(format, FgWhite, a...) }
// BlackString is a convenient helper function to return a string with black
// foreground.
func BlackString(format string, a ...interface{}) string { return colorString(format, FgBlack, a...) }
// RedString is a convenient helper function to return a string with red
// foreground.
func RedString(format string, a ...interface{}) string { return colorString(format, FgRed, a...) }
// GreenString is a convenient helper function to return a string with green
// foreground.
func GreenString(format string, a ...interface{}) string { return colorString(format, FgGreen, a...) }
// YellowString is a convenient helper function to return a string with yellow
// foreground.
func YellowString(format string, a ...interface{}) string { return colorString(format, FgYellow, a...) }
// BlueString is a convenient helper function to return a string with blue
// foreground.
func BlueString(format string, a ...interface{}) string { return colorString(format, FgBlue, a...) }
// MagentaString is a convenient helper function to return a string with magenta
// foreground.
func MagentaString(format string, a ...interface{}) string {
return colorString(format, FgMagenta, a...)
}
// CyanString is a convenient helper function to return a string with cyan
// foreground.
func CyanString(format string, a ...interface{}) string { return colorString(format, FgCyan, a...) }
// WhiteString is a convenient helper function to return a string with white
// foreground.
func WhiteString(format string, a ...interface{}) string { return colorString(format, FgWhite, a...) }
// HiBlack is a convenient helper function to print with hi-intensity black foreground. A
// newline is appended to format by default.
func HiBlack(format string, a ...interface{}) { colorPrint(format, FgHiBlack, a...) }
// HiRed is a convenient helper function to print with hi-intensity red foreground. A
// newline is appended to format by default.
func HiRed(format string, a ...interface{}) { colorPrint(format, FgHiRed, a...) }
// HiGreen is a convenient helper function to print with hi-intensity green foreground. A
// newline is appended to format by default.
func HiGreen(format string, a ...interface{}) { colorPrint(format, FgHiGreen, a...) }
// HiYellow is a convenient helper function to print with hi-intensity yellow foreground.
// A newline is appended to format by default.
func HiYellow(format string, a ...interface{}) { colorPrint(format, FgHiYellow, a...) }
// HiBlue is a convenient helper function to print with hi-intensity blue foreground. A
// newline is appended to format by default.
func HiBlue(format string, a ...interface{}) { colorPrint(format, FgHiBlue, a...) }
// HiMagenta is a convenient helper function to print with hi-intensity magenta foreground.
// A newline is appended to format by default.
func HiMagenta(format string, a ...interface{}) { colorPrint(format, FgHiMagenta, a...) }
// HiCyan is a convenient helper function to print with hi-intensity cyan foreground. A
// newline is appended to format by default.
func HiCyan(format string, a ...interface{}) { colorPrint(format, FgHiCyan, a...) }
// HiWhite is a convenient helper function to print with hi-intensity white foreground. A
// newline is appended to format by default.
func HiWhite(format string, a ...interface{}) { colorPrint(format, FgHiWhite, a...) }
// HiBlackString is a convenient helper function to return a string with hi-intensity black
// foreground.
func HiBlackString(format string, a ...interface{}) string {
return colorString(format, FgHiBlack, a...)
}
// HiRedString is a convenient helper function to return a string with hi-intensity red
// foreground.
func HiRedString(format string, a ...interface{}) string { return colorString(format, FgHiRed, a...) }
// HiGreenString is a convenient helper function to return a string with hi-intensity green
// foreground.
func HiGreenString(format string, a ...interface{}) string {
return colorString(format, FgHiGreen, a...)
}
// HiYellowString is a convenient helper function to return a string with hi-intensity yellow
// foreground.
func HiYellowString(format string, a ...interface{}) string {
return colorString(format, FgHiYellow, a...)
}
// HiBlueString is a convenient helper function to return a string with hi-intensity blue
// foreground.
func HiBlueString(format string, a ...interface{}) string { return colorString(format, FgHiBlue, a...) }
// HiMagentaString is a convenient helper function to return a string with hi-intensity magenta
// foreground.
func HiMagentaString(format string, a ...interface{}) string {
return colorString(format, FgHiMagenta, a...)
}
// HiCyanString is a convenient helper function to return a string with hi-intensity cyan
// foreground.
func HiCyanString(format string, a ...interface{}) string { return colorString(format, FgHiCyan, a...) }
// HiWhiteString is a convenient helper function to return a string with hi-intensity white
// foreground.
func HiWhiteString(format string, a ...interface{}) string {
return colorString(format, FgHiWhite, a...)
}

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package color
import (
"bytes"
"fmt"
"os"
"testing"
"github.com/mattn/go-colorable"
)
// Testing colors is kinda different. First we test for given colors and their
// escaped formatted results. Next we create some visual tests to be tested.
// Each visual test includes the color name to be compared.
func TestColor(t *testing.T) {
rb := new(bytes.Buffer)
Output = rb
NoColor = false
testColors := []struct {
text string
code Attribute
}{
{text: "black", code: FgBlack},
{text: "red", code: FgRed},
{text: "green", code: FgGreen},
{text: "yellow", code: FgYellow},
{text: "blue", code: FgBlue},
{text: "magent", code: FgMagenta},
{text: "cyan", code: FgCyan},
{text: "white", code: FgWhite},
{text: "hblack", code: FgHiBlack},
{text: "hred", code: FgHiRed},
{text: "hgreen", code: FgHiGreen},
{text: "hyellow", code: FgHiYellow},
{text: "hblue", code: FgHiBlue},
{text: "hmagent", code: FgHiMagenta},
{text: "hcyan", code: FgHiCyan},
{text: "hwhite", code: FgHiWhite},
}
for _, c := range testColors {
New(c.code).Print(c.text)
line, _ := rb.ReadString('\n')
scannedLine := fmt.Sprintf("%q", line)
colored := fmt.Sprintf("\x1b[%dm%s\x1b[0m", c.code, c.text)
escapedForm := fmt.Sprintf("%q", colored)
fmt.Printf("%s\t: %s\n", c.text, line)
if scannedLine != escapedForm {
t.Errorf("Expecting %s, got '%s'\n", escapedForm, scannedLine)
}
}
for _, c := range testColors {
line := New(c.code).Sprintf("%s", c.text)
scannedLine := fmt.Sprintf("%q", line)
colored := fmt.Sprintf("\x1b[%dm%s\x1b[0m", c.code, c.text)
escapedForm := fmt.Sprintf("%q", colored)
fmt.Printf("%s\t: %s\n", c.text, line)
if scannedLine != escapedForm {
t.Errorf("Expecting %s, got '%s'\n", escapedForm, scannedLine)
}
}
}
func TestColorEquals(t *testing.T) {
fgblack1 := New(FgBlack)
fgblack2 := New(FgBlack)
bgblack := New(BgBlack)
fgbgblack := New(FgBlack, BgBlack)
fgblackbgred := New(FgBlack, BgRed)
fgred := New(FgRed)
bgred := New(BgRed)
if !fgblack1.Equals(fgblack2) {
t.Error("Two black colors are not equal")
}
if fgblack1.Equals(bgblack) {
t.Error("Fg and bg black colors are equal")
}
if fgblack1.Equals(fgbgblack) {
t.Error("Fg black equals fg/bg black color")
}
if fgblack1.Equals(fgred) {
t.Error("Fg black equals Fg red")
}
if fgblack1.Equals(bgred) {
t.Error("Fg black equals Bg red")
}
if fgblack1.Equals(fgblackbgred) {
t.Error("Fg black equals fg black bg red")
}
}
func TestNoColor(t *testing.T) {
rb := new(bytes.Buffer)
Output = rb
testColors := []struct {
text string
code Attribute
}{
{text: "black", code: FgBlack},
{text: "red", code: FgRed},
{text: "green", code: FgGreen},
{text: "yellow", code: FgYellow},
{text: "blue", code: FgBlue},
{text: "magent", code: FgMagenta},
{text: "cyan", code: FgCyan},
{text: "white", code: FgWhite},
{text: "hblack", code: FgHiBlack},
{text: "hred", code: FgHiRed},
{text: "hgreen", code: FgHiGreen},
{text: "hyellow", code: FgHiYellow},
{text: "hblue", code: FgHiBlue},
{text: "hmagent", code: FgHiMagenta},
{text: "hcyan", code: FgHiCyan},
{text: "hwhite", code: FgHiWhite},
}
for _, c := range testColors {
p := New(c.code)
p.DisableColor()
p.Print(c.text)
line, _ := rb.ReadString('\n')
if line != c.text {
t.Errorf("Expecting %s, got '%s'\n", c.text, line)
}
}
// global check
NoColor = true
defer func() {
NoColor = false
}()
for _, c := range testColors {
p := New(c.code)
p.Print(c.text)
line, _ := rb.ReadString('\n')
if line != c.text {
t.Errorf("Expecting %s, got '%s'\n", c.text, line)
}
}
}
func TestColorVisual(t *testing.T) {
// First Visual Test
Output = colorable.NewColorableStdout()
New(FgRed).Printf("red\t")
New(BgRed).Print(" ")
New(FgRed, Bold).Println(" red")
New(FgGreen).Printf("green\t")
New(BgGreen).Print(" ")
New(FgGreen, Bold).Println(" green")
New(FgYellow).Printf("yellow\t")
New(BgYellow).Print(" ")
New(FgYellow, Bold).Println(" yellow")
New(FgBlue).Printf("blue\t")
New(BgBlue).Print(" ")
New(FgBlue, Bold).Println(" blue")
New(FgMagenta).Printf("magenta\t")
New(BgMagenta).Print(" ")
New(FgMagenta, Bold).Println(" magenta")
New(FgCyan).Printf("cyan\t")
New(BgCyan).Print(" ")
New(FgCyan, Bold).Println(" cyan")
New(FgWhite).Printf("white\t")
New(BgWhite).Print(" ")
New(FgWhite, Bold).Println(" white")
fmt.Println("")
// Second Visual test
Black("black")
Red("red")
Green("green")
Yellow("yellow")
Blue("blue")
Magenta("magenta")
Cyan("cyan")
White("white")
HiBlack("hblack")
HiRed("hred")
HiGreen("hgreen")
HiYellow("hyellow")
HiBlue("hblue")
HiMagenta("hmagenta")
HiCyan("hcyan")
HiWhite("hwhite")
// Third visual test
fmt.Println()
Set(FgBlue)
fmt.Println("is this blue?")
Unset()
Set(FgMagenta)
fmt.Println("and this magenta?")
Unset()
// Fourth Visual test
fmt.Println()
blue := New(FgBlue).PrintlnFunc()
blue("blue text with custom print func")
red := New(FgRed).PrintfFunc()
red("red text with a printf func: %d\n", 123)
put := New(FgYellow).SprintFunc()
warn := New(FgRed).SprintFunc()
fmt.Fprintf(Output, "this is a %s and this is %s.\n", put("warning"), warn("error"))
info := New(FgWhite, BgGreen).SprintFunc()
fmt.Fprintf(Output, "this %s rocks!\n", info("package"))
notice := New(FgBlue).FprintFunc()
notice(os.Stderr, "just a blue notice to stderr")
// Fifth Visual Test
fmt.Println()
fmt.Fprintln(Output, BlackString("black"))
fmt.Fprintln(Output, RedString("red"))
fmt.Fprintln(Output, GreenString("green"))
fmt.Fprintln(Output, YellowString("yellow"))
fmt.Fprintln(Output, BlueString("blue"))
fmt.Fprintln(Output, MagentaString("magenta"))
fmt.Fprintln(Output, CyanString("cyan"))
fmt.Fprintln(Output, WhiteString("white"))
fmt.Fprintln(Output, HiBlackString("hblack"))
fmt.Fprintln(Output, HiRedString("hred"))
fmt.Fprintln(Output, HiGreenString("hgreen"))
fmt.Fprintln(Output, HiYellowString("hyellow"))
fmt.Fprintln(Output, HiBlueString("hblue"))
fmt.Fprintln(Output, HiMagentaString("hmagenta"))
fmt.Fprintln(Output, HiCyanString("hcyan"))
fmt.Fprintln(Output, HiWhiteString("hwhite"))
}
func TestNoFormat(t *testing.T) {
fmt.Printf("%s %%s = ", BlackString("Black"))
Black("%s")
fmt.Printf("%s %%s = ", RedString("Red"))
Red("%s")
fmt.Printf("%s %%s = ", GreenString("Green"))
Green("%s")
fmt.Printf("%s %%s = ", YellowString("Yellow"))
Yellow("%s")
fmt.Printf("%s %%s = ", BlueString("Blue"))
Blue("%s")
fmt.Printf("%s %%s = ", MagentaString("Magenta"))
Magenta("%s")
fmt.Printf("%s %%s = ", CyanString("Cyan"))
Cyan("%s")
fmt.Printf("%s %%s = ", WhiteString("White"))
White("%s")
fmt.Printf("%s %%s = ", HiBlackString("HiBlack"))
HiBlack("%s")
fmt.Printf("%s %%s = ", HiRedString("HiRed"))
HiRed("%s")
fmt.Printf("%s %%s = ", HiGreenString("HiGreen"))
HiGreen("%s")
fmt.Printf("%s %%s = ", HiYellowString("HiYellow"))
HiYellow("%s")
fmt.Printf("%s %%s = ", HiBlueString("HiBlue"))
HiBlue("%s")
fmt.Printf("%s %%s = ", HiMagentaString("HiMagenta"))
HiMagenta("%s")
fmt.Printf("%s %%s = ", HiCyanString("HiCyan"))
HiCyan("%s")
fmt.Printf("%s %%s = ", HiWhiteString("HiWhite"))
HiWhite("%s")
}
func TestNoFormatString(t *testing.T) {
tests := []struct {
f func(string, ...interface{}) string
format string
args []interface{}
want string
}{
{BlackString, "%s", nil, "\x1b[30m%s\x1b[0m"},
{RedString, "%s", nil, "\x1b[31m%s\x1b[0m"},
{GreenString, "%s", nil, "\x1b[32m%s\x1b[0m"},
{YellowString, "%s", nil, "\x1b[33m%s\x1b[0m"},
{BlueString, "%s", nil, "\x1b[34m%s\x1b[0m"},
{MagentaString, "%s", nil, "\x1b[35m%s\x1b[0m"},
{CyanString, "%s", nil, "\x1b[36m%s\x1b[0m"},
{WhiteString, "%s", nil, "\x1b[37m%s\x1b[0m"},
{HiBlackString, "%s", nil, "\x1b[90m%s\x1b[0m"},
{HiRedString, "%s", nil, "\x1b[91m%s\x1b[0m"},
{HiGreenString, "%s", nil, "\x1b[92m%s\x1b[0m"},
{HiYellowString, "%s", nil, "\x1b[93m%s\x1b[0m"},
{HiBlueString, "%s", nil, "\x1b[94m%s\x1b[0m"},
{HiMagentaString, "%s", nil, "\x1b[95m%s\x1b[0m"},
{HiCyanString, "%s", nil, "\x1b[96m%s\x1b[0m"},
{HiWhiteString, "%s", nil, "\x1b[97m%s\x1b[0m"},
}
for i, test := range tests {
s := fmt.Sprintf("%s", test.f(test.format, test.args...))
if s != test.want {
t.Errorf("[%d] want: %q, got: %q", i, test.want, s)
}
}
}

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/*
Package color is an ANSI color package to output colorized or SGR defined
output to the standard output. The API can be used in several way, pick one
that suits you.
Use simple and default helper functions with predefined foreground colors:
color.Cyan("Prints text in cyan.")
// a newline will be appended automatically
color.Blue("Prints %s in blue.", "text")
// More default foreground colors..
color.Red("We have red")
color.Yellow("Yellow color too!")
color.Magenta("And many others ..")
// Hi-intensity colors
color.HiGreen("Bright green color.")
color.HiBlack("Bright black means gray..")
color.HiWhite("Shiny white color!")
However there are times where custom color mixes are required. Below are some
examples to create custom color objects and use the print functions of each
separate color object.
// Create a new color object
c := color.New(color.FgCyan).Add(color.Underline)
c.Println("Prints cyan text with an underline.")
// Or just add them to New()
d := color.New(color.FgCyan, color.Bold)
d.Printf("This prints bold cyan %s\n", "too!.")
// Mix up foreground and background colors, create new mixes!
red := color.New(color.FgRed)
boldRed := red.Add(color.Bold)
boldRed.Println("This will print text in bold red.")
whiteBackground := red.Add(color.BgWhite)
whiteBackground.Println("Red text with White background.")
// Use your own io.Writer output
color.New(color.FgBlue).Fprintln(myWriter, "blue color!")
blue := color.New(color.FgBlue)
blue.Fprint(myWriter, "This will print text in blue.")
You can create PrintXxx functions to simplify even more:
// Create a custom print function for convenient
red := color.New(color.FgRed).PrintfFunc()
red("warning")
red("error: %s", err)
// Mix up multiple attributes
notice := color.New(color.Bold, color.FgGreen).PrintlnFunc()
notice("don't forget this...")
You can also FprintXxx functions to pass your own io.Writer:
blue := color.New(FgBlue).FprintfFunc()
blue(myWriter, "important notice: %s", stars)
// Mix up with multiple attributes
success := color.New(color.Bold, color.FgGreen).FprintlnFunc()
success(myWriter, don't forget this...")
Or create SprintXxx functions to mix strings with other non-colorized strings:
yellow := New(FgYellow).SprintFunc()
red := New(FgRed).SprintFunc()
fmt.Printf("this is a %s and this is %s.\n", yellow("warning"), red("error"))
info := New(FgWhite, BgGreen).SprintFunc()
fmt.Printf("this %s rocks!\n", info("package"))
Windows support is enabled by default. All Print functions work as intended.
However only for color.SprintXXX functions, user should use fmt.FprintXXX and
set the output to color.Output:
fmt.Fprintf(color.Output, "Windows support: %s", color.GreenString("PASS"))
info := New(FgWhite, BgGreen).SprintFunc()
fmt.Fprintf(color.Output, "this %s rocks!\n", info("package"))
Using with existing code is possible. Just use the Set() method to set the
standard output to the given parameters. That way a rewrite of an existing
code is not required.
// Use handy standard colors.
color.Set(color.FgYellow)
fmt.Println("Existing text will be now in Yellow")
fmt.Printf("This one %s\n", "too")
color.Unset() // don't forget to unset
// You can mix up parameters
color.Set(color.FgMagenta, color.Bold)
defer color.Unset() // use it in your function
fmt.Println("All text will be now bold magenta.")
There might be a case where you want to disable color output (for example to
pipe the standard output of your app to somewhere else). `Color` has support to
disable colors both globally and for single color definition. For example
suppose you have a CLI app and a `--no-color` bool flag. You can easily disable
the color output with:
var flagNoColor = flag.Bool("no-color", false, "Disable color output")
if *flagNoColor {
color.NoColor = true // disables colorized output
}
It also has support for single color definitions (local). You can
disable/enable color output on the fly:
c := color.New(color.FgCyan)
c.Println("Prints cyan text")
c.DisableColor()
c.Println("This is printed without any color")
c.EnableColor()
c.Println("This prints again cyan...")
*/
package color

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vendor/github.com/fatih/color/vendor/github.com/mattn/go-colorable/.travis.yml generated vendored Normal file
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language: go
go:
- tip
before_install:
- go get github.com/mattn/goveralls
- go get golang.org/x/tools/cmd/cover
script:
- $HOME/gopath/bin/goveralls -repotoken xnXqRGwgW3SXIguzxf90ZSK1GPYZPaGrw

21
vendor/github.com/fatih/color/vendor/github.com/mattn/go-colorable/LICENSE generated vendored Normal file
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The MIT License (MIT)
Copyright (c) 2016 Yasuhiro Matsumoto
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

48
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# go-colorable
[![Godoc Reference](https://godoc.org/github.com/mattn/go-colorable?status.svg)](http://godoc.org/github.com/mattn/go-colorable)
[![Build Status](https://travis-ci.org/mattn/go-colorable.svg?branch=master)](https://travis-ci.org/mattn/go-colorable)
[![Coverage Status](https://coveralls.io/repos/github/mattn/go-colorable/badge.svg?branch=master)](https://coveralls.io/github/mattn/go-colorable?branch=master)
[![Go Report Card](https://goreportcard.com/badge/mattn/go-colorable)](https://goreportcard.com/report/mattn/go-colorable)
Colorable writer for windows.
For example, most of logger packages doesn't show colors on windows. (I know we can do it with ansicon. But I don't want.)
This package is possible to handle escape sequence for ansi color on windows.
## Too Bad!
![](https://raw.githubusercontent.com/mattn/go-colorable/gh-pages/bad.png)
## So Good!
![](https://raw.githubusercontent.com/mattn/go-colorable/gh-pages/good.png)
## Usage
```go
logrus.SetFormatter(&logrus.TextFormatter{ForceColors: true})
logrus.SetOutput(colorable.NewColorableStdout())
logrus.Info("succeeded")
logrus.Warn("not correct")
logrus.Error("something error")
logrus.Fatal("panic")
```
You can compile above code on non-windows OSs.
## Installation
```
$ go get github.com/mattn/go-colorable
```
# License
MIT
# Author
Yasuhiro Matsumoto (a.k.a mattn)

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vendor/github.com/fatih/color/vendor/github.com/mattn/go-colorable/_example/escape-seq/main.go generated vendored Normal file
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package main
import (
"bufio"
"fmt"
"github.com/mattn/go-colorable"
)
func main() {
stdOut := bufio.NewWriter(colorable.NewColorableStdout())
fmt.Fprint(stdOut, "\x1B[3GMove to 3rd Column\n")
fmt.Fprint(stdOut, "\x1B[1;2HMove to 2nd Column on 1st Line\n")
stdOut.Flush()
}

16
vendor/github.com/fatih/color/vendor/github.com/mattn/go-colorable/_example/logrus/main.go generated vendored Normal file
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package main
import (
"github.com/mattn/go-colorable"
"github.com/sirupsen/logrus"
)
func main() {
logrus.SetFormatter(&logrus.TextFormatter{ForceColors: true})
logrus.SetOutput(colorable.NewColorableStdout())
logrus.Info("succeeded")
logrus.Warn("not correct")
logrus.Error("something error")
logrus.Fatal("panic")
}

14
vendor/github.com/fatih/color/vendor/github.com/mattn/go-colorable/_example/title/main.go generated vendored Normal file
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package main
import (
"fmt"
"os"
. "github.com/mattn/go-colorable"
)
func main() {
out := NewColorableStdout()
fmt.Fprint(out, "\x1B]0;TITLE Changed\007(See title and hit any key)")
var c [1]byte
os.Stdin.Read(c[:])
}

29
vendor/github.com/fatih/color/vendor/github.com/mattn/go-colorable/colorable_appengine.go generated vendored Normal file
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// +build appengine
package colorable
import (
"io"
"os"
_ "github.com/mattn/go-isatty"
)
// NewColorable return new instance of Writer which handle escape sequence.
func NewColorable(file *os.File) io.Writer {
if file == nil {
panic("nil passed instead of *os.File to NewColorable()")
}
return file
}
// NewColorableStdout return new instance of Writer which handle escape sequence for stdout.
func NewColorableStdout() io.Writer {
return os.Stdout
}
// NewColorableStderr return new instance of Writer which handle escape sequence for stderr.
func NewColorableStderr() io.Writer {
return os.Stderr
}

30
vendor/github.com/fatih/color/vendor/github.com/mattn/go-colorable/colorable_others.go generated vendored Normal file
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// +build !windows
// +build !appengine
package colorable
import (
"io"
"os"
_ "github.com/mattn/go-isatty"
)
// NewColorable return new instance of Writer which handle escape sequence.
func NewColorable(file *os.File) io.Writer {
if file == nil {
panic("nil passed instead of *os.File to NewColorable()")
}
return file
}
// NewColorableStdout return new instance of Writer which handle escape sequence for stdout.
func NewColorableStdout() io.Writer {
return os.Stdout
}
// NewColorableStderr return new instance of Writer which handle escape sequence for stderr.
func NewColorableStderr() io.Writer {
return os.Stderr
}

83
vendor/github.com/fatih/color/vendor/github.com/mattn/go-colorable/colorable_test.go generated vendored Normal file
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package colorable
import (
"bytes"
"os"
"runtime"
"testing"
)
// checkEncoding checks that colorable is output encoding agnostic as long as
// the encoding is a superset of ASCII. This implies that one byte not part of
// an ANSI sequence must give exactly one byte in output
func checkEncoding(t *testing.T, data []byte) {
// Send non-UTF8 data to colorable
b := bytes.NewBuffer(make([]byte, 0, 10))
if b.Len() != 0 {
t.FailNow()
}
// TODO move colorable wrapping outside the test
c := NewNonColorable(b)
c.Write(data)
if b.Len() != len(data) {
t.Fatalf("%d bytes expected, got %d", len(data), b.Len())
}
}
func TestEncoding(t *testing.T) {
checkEncoding(t, []byte{}) // Empty
checkEncoding(t, []byte(`abc`)) // "abc"
checkEncoding(t, []byte(`é`)) // "é" in UTF-8
checkEncoding(t, []byte{233}) // 'é' in Latin-1
}
func TestNonColorable(t *testing.T) {
var buf bytes.Buffer
want := "hello"
NewNonColorable(&buf).Write([]byte("\x1b[0m" + want + "\x1b[2J"))
got := buf.String()
if got != "hello" {
t.Fatalf("want %q but %q", want, got)
}
buf.Reset()
NewNonColorable(&buf).Write([]byte("\x1b["))
got = buf.String()
if got != "" {
t.Fatalf("want %q but %q", "", got)
}
}
func TestNonColorableNil(t *testing.T) {
paniced := false
func() {
defer func() {
recover()
paniced = true
}()
NewNonColorable(nil)
NewColorable(nil)
}()
if !paniced {
t.Fatalf("should panic")
}
}
func TestColorable(t *testing.T) {
if runtime.GOOS == "windows" {
t.Skipf("skip this test on windows")
}
_, ok := NewColorableStdout().(*os.File)
if !ok {
t.Fatalf("should os.Stdout on UNIX")
}
_, ok = NewColorableStderr().(*os.File)
if !ok {
t.Fatalf("should os.Stdout on UNIX")
}
_, ok = NewColorable(os.Stdout).(*os.File)
if !ok {
t.Fatalf("should os.Stdout on UNIX")
}
}

884
vendor/github.com/fatih/color/vendor/github.com/mattn/go-colorable/colorable_windows.go generated vendored Normal file
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// +build windows
// +build !appengine
package colorable
import (
"bytes"
"io"
"math"
"os"
"strconv"
"strings"
"syscall"
"unsafe"
"github.com/mattn/go-isatty"
)
const (
foregroundBlue = 0x1
foregroundGreen = 0x2
foregroundRed = 0x4
foregroundIntensity = 0x8
foregroundMask = (foregroundRed | foregroundBlue | foregroundGreen | foregroundIntensity)
backgroundBlue = 0x10
backgroundGreen = 0x20
backgroundRed = 0x40
backgroundIntensity = 0x80
backgroundMask = (backgroundRed | backgroundBlue | backgroundGreen | backgroundIntensity)
)
type wchar uint16
type short int16
type dword uint32
type word uint16
type coord struct {
x short
y short
}
type smallRect struct {
left short
top short
right short
bottom short
}
type consoleScreenBufferInfo struct {
size coord
cursorPosition coord
attributes word
window smallRect
maximumWindowSize coord
}
type consoleCursorInfo struct {
size dword
visible int32
}
var (
kernel32 = syscall.NewLazyDLL("kernel32.dll")
procGetConsoleScreenBufferInfo = kernel32.NewProc("GetConsoleScreenBufferInfo")
procSetConsoleTextAttribute = kernel32.NewProc("SetConsoleTextAttribute")
procSetConsoleCursorPosition = kernel32.NewProc("SetConsoleCursorPosition")
procFillConsoleOutputCharacter = kernel32.NewProc("FillConsoleOutputCharacterW")
procFillConsoleOutputAttribute = kernel32.NewProc("FillConsoleOutputAttribute")
procGetConsoleCursorInfo = kernel32.NewProc("GetConsoleCursorInfo")
procSetConsoleCursorInfo = kernel32.NewProc("SetConsoleCursorInfo")
procSetConsoleTitle = kernel32.NewProc("SetConsoleTitleW")
)
// Writer provide colorable Writer to the console
type Writer struct {
out io.Writer
handle syscall.Handle
oldattr word
oldpos coord
}
// NewColorable return new instance of Writer which handle escape sequence from File.
func NewColorable(file *os.File) io.Writer {
if file == nil {
panic("nil passed instead of *os.File to NewColorable()")
}
if isatty.IsTerminal(file.Fd()) {
var csbi consoleScreenBufferInfo
handle := syscall.Handle(file.Fd())
procGetConsoleScreenBufferInfo.Call(uintptr(handle), uintptr(unsafe.Pointer(&csbi)))
return &Writer{out: file, handle: handle, oldattr: csbi.attributes, oldpos: coord{0, 0}}
}
return file
}
// NewColorableStdout return new instance of Writer which handle escape sequence for stdout.
func NewColorableStdout() io.Writer {
return NewColorable(os.Stdout)
}
// NewColorableStderr return new instance of Writer which handle escape sequence for stderr.
func NewColorableStderr() io.Writer {
return NewColorable(os.Stderr)
}
var color256 = map[int]int{
0: 0x000000,
1: 0x800000,
2: 0x008000,
3: 0x808000,
4: 0x000080,
5: 0x800080,
6: 0x008080,
7: 0xc0c0c0,
8: 0x808080,
9: 0xff0000,
10: 0x00ff00,
11: 0xffff00,
12: 0x0000ff,
13: 0xff00ff,
14: 0x00ffff,
15: 0xffffff,
16: 0x000000,
17: 0x00005f,
18: 0x000087,
19: 0x0000af,
20: 0x0000d7,
21: 0x0000ff,
22: 0x005f00,
23: 0x005f5f,
24: 0x005f87,
25: 0x005faf,
26: 0x005fd7,
27: 0x005fff,
28: 0x008700,
29: 0x00875f,
30: 0x008787,
31: 0x0087af,
32: 0x0087d7,
33: 0x0087ff,
34: 0x00af00,
35: 0x00af5f,
36: 0x00af87,
37: 0x00afaf,
38: 0x00afd7,
39: 0x00afff,
40: 0x00d700,
41: 0x00d75f,
42: 0x00d787,
43: 0x00d7af,
44: 0x00d7d7,
45: 0x00d7ff,
46: 0x00ff00,
47: 0x00ff5f,
48: 0x00ff87,
49: 0x00ffaf,
50: 0x00ffd7,
51: 0x00ffff,
52: 0x5f0000,
53: 0x5f005f,
54: 0x5f0087,
55: 0x5f00af,
56: 0x5f00d7,
57: 0x5f00ff,
58: 0x5f5f00,
59: 0x5f5f5f,
60: 0x5f5f87,
61: 0x5f5faf,
62: 0x5f5fd7,
63: 0x5f5fff,
64: 0x5f8700,
65: 0x5f875f,
66: 0x5f8787,
67: 0x5f87af,
68: 0x5f87d7,
69: 0x5f87ff,
70: 0x5faf00,
71: 0x5faf5f,
72: 0x5faf87,
73: 0x5fafaf,
74: 0x5fafd7,
75: 0x5fafff,
76: 0x5fd700,
77: 0x5fd75f,
78: 0x5fd787,
79: 0x5fd7af,
80: 0x5fd7d7,
81: 0x5fd7ff,
82: 0x5fff00,
83: 0x5fff5f,
84: 0x5fff87,
85: 0x5fffaf,
86: 0x5fffd7,
87: 0x5fffff,
88: 0x870000,
89: 0x87005f,
90: 0x870087,
91: 0x8700af,
92: 0x8700d7,
93: 0x8700ff,
94: 0x875f00,
95: 0x875f5f,
96: 0x875f87,
97: 0x875faf,
98: 0x875fd7,
99: 0x875fff,
100: 0x878700,
101: 0x87875f,
102: 0x878787,
103: 0x8787af,
104: 0x8787d7,
105: 0x8787ff,
106: 0x87af00,
107: 0x87af5f,
108: 0x87af87,
109: 0x87afaf,
110: 0x87afd7,
111: 0x87afff,
112: 0x87d700,
113: 0x87d75f,
114: 0x87d787,
115: 0x87d7af,
116: 0x87d7d7,
117: 0x87d7ff,
118: 0x87ff00,
119: 0x87ff5f,
120: 0x87ff87,
121: 0x87ffaf,
122: 0x87ffd7,
123: 0x87ffff,
124: 0xaf0000,
125: 0xaf005f,
126: 0xaf0087,
127: 0xaf00af,
128: 0xaf00d7,
129: 0xaf00ff,
130: 0xaf5f00,
131: 0xaf5f5f,
132: 0xaf5f87,
133: 0xaf5faf,
134: 0xaf5fd7,
135: 0xaf5fff,
136: 0xaf8700,
137: 0xaf875f,
138: 0xaf8787,
139: 0xaf87af,
140: 0xaf87d7,
141: 0xaf87ff,
142: 0xafaf00,
143: 0xafaf5f,
144: 0xafaf87,
145: 0xafafaf,
146: 0xafafd7,
147: 0xafafff,
148: 0xafd700,
149: 0xafd75f,
150: 0xafd787,
151: 0xafd7af,
152: 0xafd7d7,
153: 0xafd7ff,
154: 0xafff00,
155: 0xafff5f,
156: 0xafff87,
157: 0xafffaf,
158: 0xafffd7,
159: 0xafffff,
160: 0xd70000,
161: 0xd7005f,
162: 0xd70087,
163: 0xd700af,
164: 0xd700d7,
165: 0xd700ff,
166: 0xd75f00,
167: 0xd75f5f,
168: 0xd75f87,
169: 0xd75faf,
170: 0xd75fd7,
171: 0xd75fff,
172: 0xd78700,
173: 0xd7875f,
174: 0xd78787,
175: 0xd787af,
176: 0xd787d7,
177: 0xd787ff,
178: 0xd7af00,
179: 0xd7af5f,
180: 0xd7af87,
181: 0xd7afaf,
182: 0xd7afd7,
183: 0xd7afff,
184: 0xd7d700,
185: 0xd7d75f,
186: 0xd7d787,
187: 0xd7d7af,
188: 0xd7d7d7,
189: 0xd7d7ff,
190: 0xd7ff00,
191: 0xd7ff5f,
192: 0xd7ff87,
193: 0xd7ffaf,
194: 0xd7ffd7,
195: 0xd7ffff,
196: 0xff0000,
197: 0xff005f,
198: 0xff0087,
199: 0xff00af,
200: 0xff00d7,
201: 0xff00ff,
202: 0xff5f00,
203: 0xff5f5f,
204: 0xff5f87,
205: 0xff5faf,
206: 0xff5fd7,
207: 0xff5fff,
208: 0xff8700,
209: 0xff875f,
210: 0xff8787,
211: 0xff87af,
212: 0xff87d7,
213: 0xff87ff,
214: 0xffaf00,
215: 0xffaf5f,
216: 0xffaf87,
217: 0xffafaf,
218: 0xffafd7,
219: 0xffafff,
220: 0xffd700,
221: 0xffd75f,
222: 0xffd787,
223: 0xffd7af,
224: 0xffd7d7,
225: 0xffd7ff,
226: 0xffff00,
227: 0xffff5f,
228: 0xffff87,
229: 0xffffaf,
230: 0xffffd7,
231: 0xffffff,
232: 0x080808,
233: 0x121212,
234: 0x1c1c1c,
235: 0x262626,
236: 0x303030,
237: 0x3a3a3a,
238: 0x444444,
239: 0x4e4e4e,
240: 0x585858,
241: 0x626262,
242: 0x6c6c6c,
243: 0x767676,
244: 0x808080,
245: 0x8a8a8a,
246: 0x949494,
247: 0x9e9e9e,
248: 0xa8a8a8,
249: 0xb2b2b2,
250: 0xbcbcbc,
251: 0xc6c6c6,
252: 0xd0d0d0,
253: 0xdadada,
254: 0xe4e4e4,
255: 0xeeeeee,
}
// `\033]0;TITLESTR\007`
func doTitleSequence(er *bytes.Reader) error {
var c byte
var err error
c, err = er.ReadByte()
if err != nil {
return err
}
if c != '0' && c != '2' {
return nil
}
c, err = er.ReadByte()
if err != nil {
return err
}
if c != ';' {
return nil
}
title := make([]byte, 0, 80)
for {
c, err = er.ReadByte()
if err != nil {
return err
}
if c == 0x07 || c == '\n' {
break
}
title = append(title, c)
}
if len(title) > 0 {
title8, err := syscall.UTF16PtrFromString(string(title))
if err == nil {
procSetConsoleTitle.Call(uintptr(unsafe.Pointer(title8)))
}
}
return nil
}
// Write write data on console
func (w *Writer) Write(data []byte) (n int, err error) {
var csbi consoleScreenBufferInfo
procGetConsoleScreenBufferInfo.Call(uintptr(w.handle), uintptr(unsafe.Pointer(&csbi)))
er := bytes.NewReader(data)
var bw [1]byte
loop:
for {
c1, err := er.ReadByte()
if err != nil {
break loop
}
if c1 != 0x1b {
bw[0] = c1
w.out.Write(bw[:])
continue
}
c2, err := er.ReadByte()
if err != nil {
break loop
}
if c2 == ']' {
if err := doTitleSequence(er); err != nil {
break loop
}
continue
}
if c2 != 0x5b {
continue
}
var buf bytes.Buffer
var m byte
for {
c, err := er.ReadByte()
if err != nil {
break loop
}
if ('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z') || c == '@' {
m = c
break
}
buf.Write([]byte(string(c)))
}
switch m {
case 'A':
n, err = strconv.Atoi(buf.String())
if err != nil {
continue
}
procGetConsoleScreenBufferInfo.Call(uintptr(w.handle), uintptr(unsafe.Pointer(&csbi)))
csbi.cursorPosition.y -= short(n)
procSetConsoleCursorPosition.Call(uintptr(w.handle), *(*uintptr)(unsafe.Pointer(&csbi.cursorPosition)))
case 'B':
n, err = strconv.Atoi(buf.String())
if err != nil {
continue
}
procGetConsoleScreenBufferInfo.Call(uintptr(w.handle), uintptr(unsafe.Pointer(&csbi)))
csbi.cursorPosition.y += short(n)
procSetConsoleCursorPosition.Call(uintptr(w.handle), *(*uintptr)(unsafe.Pointer(&csbi.cursorPosition)))
case 'C':
n, err = strconv.Atoi(buf.String())
if err != nil {
continue
}
procGetConsoleScreenBufferInfo.Call(uintptr(w.handle), uintptr(unsafe.Pointer(&csbi)))
csbi.cursorPosition.x += short(n)
procSetConsoleCursorPosition.Call(uintptr(w.handle), *(*uintptr)(unsafe.Pointer(&csbi.cursorPosition)))
case 'D':
n, err = strconv.Atoi(buf.String())
if err != nil {
continue
}
procGetConsoleScreenBufferInfo.Call(uintptr(w.handle), uintptr(unsafe.Pointer(&csbi)))
csbi.cursorPosition.x -= short(n)
procSetConsoleCursorPosition.Call(uintptr(w.handle), *(*uintptr)(unsafe.Pointer(&csbi.cursorPosition)))
case 'E':
n, err = strconv.Atoi(buf.String())
if err != nil {
continue
}
procGetConsoleScreenBufferInfo.Call(uintptr(w.handle), uintptr(unsafe.Pointer(&csbi)))
csbi.cursorPosition.x = 0
csbi.cursorPosition.y += short(n)
procSetConsoleCursorPosition.Call(uintptr(w.handle), *(*uintptr)(unsafe.Pointer(&csbi.cursorPosition)))
case 'F':
n, err = strconv.Atoi(buf.String())
if err != nil {
continue
}
procGetConsoleScreenBufferInfo.Call(uintptr(w.handle), uintptr(unsafe.Pointer(&csbi)))
csbi.cursorPosition.x = 0
csbi.cursorPosition.y -= short(n)
procSetConsoleCursorPosition.Call(uintptr(w.handle), *(*uintptr)(unsafe.Pointer(&csbi.cursorPosition)))
case 'G':
n, err = strconv.Atoi(buf.String())
if err != nil {
continue
}
procGetConsoleScreenBufferInfo.Call(uintptr(w.handle), uintptr(unsafe.Pointer(&csbi)))
csbi.cursorPosition.x = short(n - 1)
procSetConsoleCursorPosition.Call(uintptr(w.handle), *(*uintptr)(unsafe.Pointer(&csbi.cursorPosition)))
case 'H', 'f':
procGetConsoleScreenBufferInfo.Call(uintptr(w.handle), uintptr(unsafe.Pointer(&csbi)))
if buf.Len() > 0 {
token := strings.Split(buf.String(), ";")
switch len(token) {
case 1:
n1, err := strconv.Atoi(token[0])
if err != nil {
continue
}
csbi.cursorPosition.y = short(n1 - 1)
case 2:
n1, err := strconv.Atoi(token[0])
if err != nil {
continue
}
n2, err := strconv.Atoi(token[1])
if err != nil {
continue
}
csbi.cursorPosition.x = short(n2 - 1)
csbi.cursorPosition.y = short(n1 - 1)
}
} else {
csbi.cursorPosition.y = 0
}
procSetConsoleCursorPosition.Call(uintptr(w.handle), *(*uintptr)(unsafe.Pointer(&csbi.cursorPosition)))
case 'J':
n := 0
if buf.Len() > 0 {
n, err = strconv.Atoi(buf.String())
if err != nil {
continue
}
}
var count, written dword
var cursor coord
procGetConsoleScreenBufferInfo.Call(uintptr(w.handle), uintptr(unsafe.Pointer(&csbi)))
switch n {
case 0:
cursor = coord{x: csbi.cursorPosition.x, y: csbi.cursorPosition.y}
count = dword(csbi.size.x - csbi.cursorPosition.x + (csbi.size.y-csbi.cursorPosition.y)*csbi.size.x)
case 1:
cursor = coord{x: csbi.window.left, y: csbi.window.top}
count = dword(csbi.size.x - csbi.cursorPosition.x + (csbi.window.top-csbi.cursorPosition.y)*csbi.size.x)
case 2:
cursor = coord{x: csbi.window.left, y: csbi.window.top}
count = dword(csbi.size.x - csbi.cursorPosition.x + (csbi.size.y-csbi.cursorPosition.y)*csbi.size.x)
}
procFillConsoleOutputCharacter.Call(uintptr(w.handle), uintptr(' '), uintptr(count), *(*uintptr)(unsafe.Pointer(&cursor)), uintptr(unsafe.Pointer(&written)))
procFillConsoleOutputAttribute.Call(uintptr(w.handle), uintptr(csbi.attributes), uintptr(count), *(*uintptr)(unsafe.Pointer(&cursor)), uintptr(unsafe.Pointer(&written)))
case 'K':
n := 0
if buf.Len() > 0 {
n, err = strconv.Atoi(buf.String())
if err != nil {
continue
}
}
procGetConsoleScreenBufferInfo.Call(uintptr(w.handle), uintptr(unsafe.Pointer(&csbi)))
var cursor coord
var count, written dword
switch n {
case 0:
cursor = coord{x: csbi.cursorPosition.x + 1, y: csbi.cursorPosition.y}
count = dword(csbi.size.x - csbi.cursorPosition.x - 1)
case 1:
cursor = coord{x: csbi.window.left, y: csbi.window.top + csbi.cursorPosition.y}
count = dword(csbi.size.x - csbi.cursorPosition.x)
case 2:
cursor = coord{x: csbi.window.left, y: csbi.window.top + csbi.cursorPosition.y}
count = dword(csbi.size.x)
}
procFillConsoleOutputCharacter.Call(uintptr(w.handle), uintptr(' '), uintptr(count), *(*uintptr)(unsafe.Pointer(&cursor)), uintptr(unsafe.Pointer(&written)))
procFillConsoleOutputAttribute.Call(uintptr(w.handle), uintptr(csbi.attributes), uintptr(count), *(*uintptr)(unsafe.Pointer(&cursor)), uintptr(unsafe.Pointer(&written)))
case 'm':
procGetConsoleScreenBufferInfo.Call(uintptr(w.handle), uintptr(unsafe.Pointer(&csbi)))
attr := csbi.attributes
cs := buf.String()
if cs == "" {
procSetConsoleTextAttribute.Call(uintptr(w.handle), uintptr(w.oldattr))
continue
}
token := strings.Split(cs, ";")
for i := 0; i < len(token); i++ {
ns := token[i]
if n, err = strconv.Atoi(ns); err == nil {
switch {
case n == 0 || n == 100:
attr = w.oldattr
case 1 <= n && n <= 5:
attr |= foregroundIntensity
case n == 7:
attr = ((attr & foregroundMask) << 4) | ((attr & backgroundMask) >> 4)
case n == 22 || n == 25:
attr |= foregroundIntensity
case n == 27:
attr = ((attr & foregroundMask) << 4) | ((attr & backgroundMask) >> 4)
case 30 <= n && n <= 37:
attr &= backgroundMask
if (n-30)&1 != 0 {
attr |= foregroundRed
}
if (n-30)&2 != 0 {
attr |= foregroundGreen
}
if (n-30)&4 != 0 {
attr |= foregroundBlue
}
case n == 38: // set foreground color.
if i < len(token)-2 && (token[i+1] == "5" || token[i+1] == "05") {
if n256, err := strconv.Atoi(token[i+2]); err == nil {
if n256foreAttr == nil {
n256setup()
}
attr &= backgroundMask
attr |= n256foreAttr[n256]
i += 2
}
} else {
attr = attr & (w.oldattr & backgroundMask)
}
case n == 39: // reset foreground color.
attr &= backgroundMask
attr |= w.oldattr & foregroundMask
case 40 <= n && n <= 47:
attr &= foregroundMask
if (n-40)&1 != 0 {
attr |= backgroundRed
}
if (n-40)&2 != 0 {
attr |= backgroundGreen
}
if (n-40)&4 != 0 {
attr |= backgroundBlue
}
case n == 48: // set background color.
if i < len(token)-2 && token[i+1] == "5" {
if n256, err := strconv.Atoi(token[i+2]); err == nil {
if n256backAttr == nil {
n256setup()
}
attr &= foregroundMask
attr |= n256backAttr[n256]
i += 2
}
} else {
attr = attr & (w.oldattr & foregroundMask)
}
case n == 49: // reset foreground color.
attr &= foregroundMask
attr |= w.oldattr & backgroundMask
case 90 <= n && n <= 97:
attr = (attr & backgroundMask)
attr |= foregroundIntensity
if (n-90)&1 != 0 {
attr |= foregroundRed
}
if (n-90)&2 != 0 {
attr |= foregroundGreen
}
if (n-90)&4 != 0 {
attr |= foregroundBlue
}
case 100 <= n && n <= 107:
attr = (attr & foregroundMask)
attr |= backgroundIntensity
if (n-100)&1 != 0 {
attr |= backgroundRed
}
if (n-100)&2 != 0 {
attr |= backgroundGreen
}
if (n-100)&4 != 0 {
attr |= backgroundBlue
}
}
procSetConsoleTextAttribute.Call(uintptr(w.handle), uintptr(attr))
}
}
case 'h':
var ci consoleCursorInfo
cs := buf.String()
if cs == "5>" {
procGetConsoleCursorInfo.Call(uintptr(w.handle), uintptr(unsafe.Pointer(&ci)))
ci.visible = 0
procSetConsoleCursorInfo.Call(uintptr(w.handle), uintptr(unsafe.Pointer(&ci)))
} else if cs == "?25" {
procGetConsoleCursorInfo.Call(uintptr(w.handle), uintptr(unsafe.Pointer(&ci)))
ci.visible = 1
procSetConsoleCursorInfo.Call(uintptr(w.handle), uintptr(unsafe.Pointer(&ci)))
}
case 'l':
var ci consoleCursorInfo
cs := buf.String()
if cs == "5>" {
procGetConsoleCursorInfo.Call(uintptr(w.handle), uintptr(unsafe.Pointer(&ci)))
ci.visible = 1
procSetConsoleCursorInfo.Call(uintptr(w.handle), uintptr(unsafe.Pointer(&ci)))
} else if cs == "?25" {
procGetConsoleCursorInfo.Call(uintptr(w.handle), uintptr(unsafe.Pointer(&ci)))
ci.visible = 0
procSetConsoleCursorInfo.Call(uintptr(w.handle), uintptr(unsafe.Pointer(&ci)))
}
case 's':
procGetConsoleScreenBufferInfo.Call(uintptr(w.handle), uintptr(unsafe.Pointer(&csbi)))
w.oldpos = csbi.cursorPosition
case 'u':
procSetConsoleCursorPosition.Call(uintptr(w.handle), *(*uintptr)(unsafe.Pointer(&w.oldpos)))
}
}
return len(data), nil
}
type consoleColor struct {
rgb int
red bool
green bool
blue bool
intensity bool
}
func (c consoleColor) foregroundAttr() (attr word) {
if c.red {
attr |= foregroundRed
}
if c.green {
attr |= foregroundGreen
}
if c.blue {
attr |= foregroundBlue
}
if c.intensity {
attr |= foregroundIntensity
}
return
}
func (c consoleColor) backgroundAttr() (attr word) {
if c.red {
attr |= backgroundRed
}
if c.green {
attr |= backgroundGreen
}
if c.blue {
attr |= backgroundBlue
}
if c.intensity {
attr |= backgroundIntensity
}
return
}
var color16 = []consoleColor{
{0x000000, false, false, false, false},
{0x000080, false, false, true, false},
{0x008000, false, true, false, false},
{0x008080, false, true, true, false},
{0x800000, true, false, false, false},
{0x800080, true, false, true, false},
{0x808000, true, true, false, false},
{0xc0c0c0, true, true, true, false},
{0x808080, false, false, false, true},
{0x0000ff, false, false, true, true},
{0x00ff00, false, true, false, true},
{0x00ffff, false, true, true, true},
{0xff0000, true, false, false, true},
{0xff00ff, true, false, true, true},
{0xffff00, true, true, false, true},
{0xffffff, true, true, true, true},
}
type hsv struct {
h, s, v float32
}
func (a hsv) dist(b hsv) float32 {
dh := a.h - b.h
switch {
case dh > 0.5:
dh = 1 - dh
case dh < -0.5:
dh = -1 - dh
}
ds := a.s - b.s
dv := a.v - b.v
return float32(math.Sqrt(float64(dh*dh + ds*ds + dv*dv)))
}
func toHSV(rgb int) hsv {
r, g, b := float32((rgb&0xFF0000)>>16)/256.0,
float32((rgb&0x00FF00)>>8)/256.0,
float32(rgb&0x0000FF)/256.0
min, max := minmax3f(r, g, b)
h := max - min
if h > 0 {
if max == r {
h = (g - b) / h
if h < 0 {
h += 6
}
} else if max == g {
h = 2 + (b-r)/h
} else {
h = 4 + (r-g)/h
}
}
h /= 6.0
s := max - min
if max != 0 {
s /= max
}
v := max
return hsv{h: h, s: s, v: v}
}
type hsvTable []hsv
func toHSVTable(rgbTable []consoleColor) hsvTable {
t := make(hsvTable, len(rgbTable))
for i, c := range rgbTable {
t[i] = toHSV(c.rgb)
}
return t
}
func (t hsvTable) find(rgb int) consoleColor {
hsv := toHSV(rgb)
n := 7
l := float32(5.0)
for i, p := range t {
d := hsv.dist(p)
if d < l {
l, n = d, i
}
}
return color16[n]
}
func minmax3f(a, b, c float32) (min, max float32) {
if a < b {
if b < c {
return a, c
} else if a < c {
return a, b
} else {
return c, b
}
} else {
if a < c {
return b, c
} else if b < c {
return b, a
} else {
return c, a
}
}
}
var n256foreAttr []word
var n256backAttr []word
func n256setup() {
n256foreAttr = make([]word, 256)
n256backAttr = make([]word, 256)
t := toHSVTable(color16)
for i, rgb := range color256 {
c := t.find(rgb)
n256foreAttr[i] = c.foregroundAttr()
n256backAttr[i] = c.backgroundAttr()
}
}

55
vendor/github.com/fatih/color/vendor/github.com/mattn/go-colorable/noncolorable.go generated vendored Normal file
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@ -0,0 +1,55 @@
package colorable
import (
"bytes"
"io"
)
// NonColorable hold writer but remove escape sequence.
type NonColorable struct {
out io.Writer
}
// NewNonColorable return new instance of Writer which remove escape sequence from Writer.
func NewNonColorable(w io.Writer) io.Writer {
return &NonColorable{out: w}
}
// Write write data on console
func (w *NonColorable) Write(data []byte) (n int, err error) {
er := bytes.NewReader(data)
var bw [1]byte
loop:
for {
c1, err := er.ReadByte()
if err != nil {
break loop
}
if c1 != 0x1b {
bw[0] = c1
w.out.Write(bw[:])
continue
}
c2, err := er.ReadByte()
if err != nil {
break loop
}
if c2 != 0x5b {
continue
}
var buf bytes.Buffer
for {
c, err := er.ReadByte()
if err != nil {
break loop
}
if ('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z') || c == '@' {
break
}
buf.Write([]byte(string(c)))
}
}
return len(data), nil
}

9
vendor/github.com/fatih/color/vendor/github.com/mattn/go-isatty/.travis.yml generated vendored Normal file
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@ -0,0 +1,9 @@
language: go
go:
- tip
before_install:
- go get github.com/mattn/goveralls
- go get golang.org/x/tools/cmd/cover
script:
- $HOME/gopath/bin/goveralls -repotoken 3gHdORO5k5ziZcWMBxnd9LrMZaJs8m9x5

9
vendor/github.com/fatih/color/vendor/github.com/mattn/go-isatty/LICENSE generated vendored Normal file
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@ -0,0 +1,9 @@
Copyright (c) Yasuhiro MATSUMOTO <mattn.jp@gmail.com>
MIT License (Expat)
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

50
vendor/github.com/fatih/color/vendor/github.com/mattn/go-isatty/README.md generated vendored Normal file
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# go-isatty
[![Godoc Reference](https://godoc.org/github.com/mattn/go-isatty?status.svg)](http://godoc.org/github.com/mattn/go-isatty)
[![Build Status](https://travis-ci.org/mattn/go-isatty.svg?branch=master)](https://travis-ci.org/mattn/go-isatty)
[![Coverage Status](https://coveralls.io/repos/github/mattn/go-isatty/badge.svg?branch=master)](https://coveralls.io/github/mattn/go-isatty?branch=master)
[![Go Report Card](https://goreportcard.com/badge/mattn/go-isatty)](https://goreportcard.com/report/mattn/go-isatty)
isatty for golang
## Usage
```go
package main
import (
"fmt"
"github.com/mattn/go-isatty"
"os"
)
func main() {
if isatty.IsTerminal(os.Stdout.Fd()) {
fmt.Println("Is Terminal")
} else if isatty.IsCygwinTerminal(os.Stdout.Fd()) {
fmt.Println("Is Cygwin/MSYS2 Terminal")
} else {
fmt.Println("Is Not Terminal")
}
}
```
## Installation
```
$ go get github.com/mattn/go-isatty
```
## License
MIT
## Author
Yasuhiro Matsumoto (a.k.a mattn)
## Thanks
* k-takata: base idea for IsCygwinTerminal
https://github.com/k-takata/go-iscygpty

2
vendor/github.com/fatih/color/vendor/github.com/mattn/go-isatty/doc.go generated vendored Normal file
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// Package isatty implements interface to isatty
package isatty

18
vendor/github.com/fatih/color/vendor/github.com/mattn/go-isatty/example_test.go generated vendored Normal file
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@ -0,0 +1,18 @@
package isatty_test
import (
"fmt"
"os"
"github.com/mattn/go-isatty"
)
func Example() {
if isatty.IsTerminal(os.Stdout.Fd()) {
fmt.Println("Is Terminal")
} else if isatty.IsCygwinTerminal(os.Stdout.Fd()) {
fmt.Println("Is Cygwin/MSYS2 Terminal")
} else {
fmt.Println("Is Not Terminal")
}
}

15
vendor/github.com/fatih/color/vendor/github.com/mattn/go-isatty/isatty_appengine.go generated vendored Normal file
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@ -0,0 +1,15 @@
// +build appengine
package isatty
// IsTerminal returns true if the file descriptor is terminal which
// is always false on on appengine classic which is a sandboxed PaaS.
func IsTerminal(fd uintptr) bool {
return false
}
// IsCygwinTerminal() return true if the file descriptor is a cygwin or msys2
// terminal. This is also always false on this environment.
func IsCygwinTerminal(fd uintptr) bool {
return false
}

18
vendor/github.com/fatih/color/vendor/github.com/mattn/go-isatty/isatty_bsd.go generated vendored Normal file
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@ -0,0 +1,18 @@
// +build darwin freebsd openbsd netbsd dragonfly
// +build !appengine
package isatty
import (
"syscall"
"unsafe"
)
const ioctlReadTermios = syscall.TIOCGETA
// IsTerminal return true if the file descriptor is terminal.
func IsTerminal(fd uintptr) bool {
var termios syscall.Termios
_, _, err := syscall.Syscall6(syscall.SYS_IOCTL, fd, ioctlReadTermios, uintptr(unsafe.Pointer(&termios)), 0, 0, 0)
return err == 0
}

18
vendor/github.com/fatih/color/vendor/github.com/mattn/go-isatty/isatty_linux.go generated vendored Normal file
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@ -0,0 +1,18 @@
// +build linux
// +build !appengine,!ppc64,!ppc64le
package isatty
import (
"syscall"
"unsafe"
)
const ioctlReadTermios = syscall.TCGETS
// IsTerminal return true if the file descriptor is terminal.
func IsTerminal(fd uintptr) bool {
var termios syscall.Termios
_, _, err := syscall.Syscall6(syscall.SYS_IOCTL, fd, ioctlReadTermios, uintptr(unsafe.Pointer(&termios)), 0, 0, 0)
return err == 0
}

19
vendor/github.com/fatih/color/vendor/github.com/mattn/go-isatty/isatty_linux_ppc64x.go generated vendored Normal file
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@ -0,0 +1,19 @@
// +build linux
// +build ppc64 ppc64le
package isatty
import (
"unsafe"
syscall "golang.org/x/sys/unix"
)
const ioctlReadTermios = syscall.TCGETS
// IsTerminal return true if the file descriptor is terminal.
func IsTerminal(fd uintptr) bool {
var termios syscall.Termios
_, _, err := syscall.Syscall6(syscall.SYS_IOCTL, fd, ioctlReadTermios, uintptr(unsafe.Pointer(&termios)), 0, 0, 0)
return err == 0
}

10
vendor/github.com/fatih/color/vendor/github.com/mattn/go-isatty/isatty_others.go generated vendored Normal file
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@ -0,0 +1,10 @@
// +build !windows
// +build !appengine
package isatty
// IsCygwinTerminal() return true if the file descriptor is a cygwin or msys2
// terminal. This is also always false on this environment.
func IsCygwinTerminal(fd uintptr) bool {
return false
}

19
vendor/github.com/fatih/color/vendor/github.com/mattn/go-isatty/isatty_others_test.go generated vendored Normal file
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@ -0,0 +1,19 @@
// +build !windows
package isatty
import (
"os"
"testing"
)
func TestTerminal(t *testing.T) {
// test for non-panic
IsTerminal(os.Stdout.Fd())
}
func TestCygwinPipeName(t *testing.T) {
if IsCygwinTerminal(os.Stdout.Fd()) {
t.Fatal("should be false always")
}
}

16
vendor/github.com/fatih/color/vendor/github.com/mattn/go-isatty/isatty_solaris.go generated vendored Normal file
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@ -0,0 +1,16 @@
// +build solaris
// +build !appengine
package isatty
import (
"golang.org/x/sys/unix"
)
// IsTerminal returns true if the given file descriptor is a terminal.
// see: http://src.illumos.org/source/xref/illumos-gate/usr/src/lib/libbc/libc/gen/common/isatty.c
func IsTerminal(fd uintptr) bool {
var termio unix.Termio
err := unix.IoctlSetTermio(int(fd), unix.TCGETA, &termio)
return err == nil
}

94
vendor/github.com/fatih/color/vendor/github.com/mattn/go-isatty/isatty_windows.go generated vendored Normal file
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@ -0,0 +1,94 @@
// +build windows
// +build !appengine
package isatty
import (
"strings"
"syscall"
"unicode/utf16"
"unsafe"
)
const (
fileNameInfo uintptr = 2
fileTypePipe = 3
)
var (
kernel32 = syscall.NewLazyDLL("kernel32.dll")
procGetConsoleMode = kernel32.NewProc("GetConsoleMode")
procGetFileInformationByHandleEx = kernel32.NewProc("GetFileInformationByHandleEx")
procGetFileType = kernel32.NewProc("GetFileType")
)
func init() {
// Check if GetFileInformationByHandleEx is available.
if procGetFileInformationByHandleEx.Find() != nil {
procGetFileInformationByHandleEx = nil
}
}
// IsTerminal return true if the file descriptor is terminal.
func IsTerminal(fd uintptr) bool {
var st uint32
r, _, e := syscall.Syscall(procGetConsoleMode.Addr(), 2, fd, uintptr(unsafe.Pointer(&st)), 0)
return r != 0 && e == 0
}
// Check pipe name is used for cygwin/msys2 pty.
// Cygwin/MSYS2 PTY has a name like:
// \{cygwin,msys}-XXXXXXXXXXXXXXXX-ptyN-{from,to}-master
func isCygwinPipeName(name string) bool {
token := strings.Split(name, "-")
if len(token) < 5 {
return false
}
if token[0] != `\msys` && token[0] != `\cygwin` {
return false
}
if token[1] == "" {
return false
}
if !strings.HasPrefix(token[2], "pty") {
return false
}
if token[3] != `from` && token[3] != `to` {
return false
}
if token[4] != "master" {
return false
}
return true
}
// IsCygwinTerminal() return true if the file descriptor is a cygwin or msys2
// terminal.
func IsCygwinTerminal(fd uintptr) bool {
if procGetFileInformationByHandleEx == nil {
return false
}
// Cygwin/msys's pty is a pipe.
ft, _, e := syscall.Syscall(procGetFileType.Addr(), 1, fd, 0, 0)
if ft != fileTypePipe || e != 0 {
return false
}
var buf [2 + syscall.MAX_PATH]uint16
r, _, e := syscall.Syscall6(procGetFileInformationByHandleEx.Addr(),
4, fd, fileNameInfo, uintptr(unsafe.Pointer(&buf)),
uintptr(len(buf)*2), 0, 0)
if r == 0 || e != 0 {
return false
}
l := *(*uint32)(unsafe.Pointer(&buf))
return isCygwinPipeName(string(utf16.Decode(buf[2 : 2+l/2])))
}

35
vendor/github.com/fatih/color/vendor/github.com/mattn/go-isatty/isatty_windows_test.go generated vendored Normal file
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// +build windows
package isatty
import (
"testing"
)
func TestCygwinPipeName(t *testing.T) {
tests := []struct {
name string
result bool
}{
{``, false},
{`\msys-`, false},
{`\cygwin-----`, false},
{`\msys-x-PTY5-pty1-from-master`, false},
{`\cygwin-x-PTY5-from-master`, false},
{`\cygwin-x-pty2-from-toaster`, false},
{`\cygwin--pty2-from-master`, false},
{`\\cygwin-x-pty2-from-master`, false},
{`\cygwin-x-pty2-from-master-`, true}, // for the feature
{`\cygwin-e022582115c10879-pty4-from-master`, true},
{`\msys-e022582115c10879-pty4-to-master`, true},
{`\cygwin-e022582115c10879-pty4-to-master`, true},
}
for _, test := range tests {
want := test.result
got := isCygwinPipeName(test.name)
if want != got {
t.Fatalf("isatty(%q): got %v, want %v:", test.name, got, want)
}
}
}

10
vendor/github.com/fatih/color/vendor/golang.org/x/sys/.gitattributes generated vendored Normal file
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@ -0,0 +1,10 @@
# Treat all files in this repo as binary, with no git magic updating
# line endings. Windows users contributing to Go will need to use a
# modern version of git and editors capable of LF line endings.
#
# We'll prevent accidental CRLF line endings from entering the repo
# via the git-review gofmt checks.
#
# See golang.org/issue/9281
* -text

2
vendor/github.com/fatih/color/vendor/golang.org/x/sys/.gitignore generated vendored Normal file
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# Add no patterns to .hgignore except for files generated by the build.
last-change

3
vendor/github.com/fatih/color/vendor/golang.org/x/sys/AUTHORS generated vendored Normal file
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@ -0,0 +1,3 @@
# This source code refers to The Go Authors for copyright purposes.
# The master list of authors is in the main Go distribution,
# visible at http://tip.golang.org/AUTHORS.

31
vendor/github.com/fatih/color/vendor/golang.org/x/sys/CONTRIBUTING.md generated vendored Normal file
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@ -0,0 +1,31 @@
# Contributing to Go
Go is an open source project.
It is the work of hundreds of contributors. We appreciate your help!
## Filing issues
When [filing an issue](https://golang.org/issue/new), make sure to answer these five questions:
1. What version of Go are you using (`go version`)?
2. What operating system and processor architecture are you using?
3. What did you do?
4. What did you expect to see?
5. What did you see instead?
General questions should go to the [golang-nuts mailing list](https://groups.google.com/group/golang-nuts) instead of the issue tracker.
The gophers there will answer or ask you to file an issue if you've tripped over a bug.
## Contributing code
Please read the [Contribution Guidelines](https://golang.org/doc/contribute.html)
before sending patches.
**We do not accept GitHub pull requests**
(we use [Gerrit](https://code.google.com/p/gerrit/) instead for code review).
Unless otherwise noted, the Go source files are distributed under
the BSD-style license found in the LICENSE file.

3
vendor/github.com/fatih/color/vendor/golang.org/x/sys/CONTRIBUTORS generated vendored Normal file
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# This source code was written by the Go contributors.
# The master list of contributors is in the main Go distribution,
# visible at http://tip.golang.org/CONTRIBUTORS.

27
vendor/github.com/fatih/color/vendor/golang.org/x/sys/LICENSE generated vendored Normal file
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Copyright (c) 2009 The Go Authors. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
* Neither the name of Google Inc. nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

22
vendor/github.com/fatih/color/vendor/golang.org/x/sys/PATENTS generated vendored Normal file
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@ -0,0 +1,22 @@
Additional IP Rights Grant (Patents)
"This implementation" means the copyrightable works distributed by
Google as part of the Go project.
Google hereby grants to You a perpetual, worldwide, non-exclusive,
no-charge, royalty-free, irrevocable (except as stated in this section)
patent license to make, have made, use, offer to sell, sell, import,
transfer and otherwise run, modify and propagate the contents of this
implementation of Go, where such license applies only to those patent
claims, both currently owned or controlled by Google and acquired in
the future, licensable by Google that are necessarily infringed by this
implementation of Go. This grant does not include claims that would be
infringed only as a consequence of further modification of this
implementation. If you or your agent or exclusive licensee institute or
order or agree to the institution of patent litigation against any
entity (including a cross-claim or counterclaim in a lawsuit) alleging
that this implementation of Go or any code incorporated within this
implementation of Go constitutes direct or contributory patent
infringement, or inducement of patent infringement, then any patent
rights granted to you under this License for this implementation of Go
shall terminate as of the date such litigation is filed.

18
vendor/github.com/fatih/color/vendor/golang.org/x/sys/README.md generated vendored Normal file
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# sys
This repository holds supplemental Go packages for low-level interactions with
the operating system.
## Download/Install
The easiest way to install is to run `go get -u golang.org/x/sys`. You can
also manually git clone the repository to `$GOPATH/src/golang.org/x/sys`.
## Report Issues / Send Patches
This repository uses Gerrit for code changes. To learn how to submit changes to
this repository, see https://golang.org/doc/contribute.html.
The main issue tracker for the sys repository is located at
https://github.com/golang/go/issues. Prefix your issue with "x/sys:" in the
subject line, so it is easy to find.

1
vendor/github.com/fatih/color/vendor/golang.org/x/sys/codereview.cfg generated vendored Normal file
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@ -0,0 +1 @@
issuerepo: golang/go

8
vendor/github.com/fatih/color/vendor/golang.org/x/sys/plan9/asm.s generated vendored Normal file
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// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
#include "textflag.h"
TEXT ·use(SB),NOSPLIT,$0
RET

30
vendor/github.com/fatih/color/vendor/golang.org/x/sys/plan9/asm_plan9_386.s generated vendored Normal file
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// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
#include "textflag.h"
//
// System call support for 386, Plan 9
//
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-32
JMP syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-44
JMP syscall·Syscall6(SB)
TEXT ·RawSyscall(SB),NOSPLIT,$0-28
JMP syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-40
JMP syscall·RawSyscall6(SB)
TEXT ·seek(SB),NOSPLIT,$0-36
JMP syscall·seek(SB)
TEXT ·exit(SB),NOSPLIT,$4-4
JMP syscall·exit(SB)

30
vendor/github.com/fatih/color/vendor/golang.org/x/sys/plan9/asm_plan9_amd64.s generated vendored Normal file
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@ -0,0 +1,30 @@
// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
#include "textflag.h"
//
// System call support for amd64, Plan 9
//
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-64
JMP syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-88
JMP syscall·Syscall6(SB)
TEXT ·RawSyscall(SB),NOSPLIT,$0-56
JMP syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
JMP syscall·RawSyscall6(SB)
TEXT ·seek(SB),NOSPLIT,$0-56
JMP syscall·seek(SB)
TEXT ·exit(SB),NOSPLIT,$8-8
JMP syscall·exit(SB)

25
vendor/github.com/fatih/color/vendor/golang.org/x/sys/plan9/asm_plan9_arm.s generated vendored Normal file
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@ -0,0 +1,25 @@
// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
#include "textflag.h"
// System call support for plan9 on arm
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-32
JMP syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-44
JMP syscall·Syscall6(SB)
TEXT ·RawSyscall(SB),NOSPLIT,$0-28
JMP syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-40
JMP syscall·RawSyscall6(SB)
TEXT ·seek(SB),NOSPLIT,$0-36
JMP syscall·exit(SB)

70
vendor/github.com/fatih/color/vendor/golang.org/x/sys/plan9/const_plan9.go generated vendored Normal file
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package plan9
// Plan 9 Constants
// Open modes
const (
O_RDONLY = 0
O_WRONLY = 1
O_RDWR = 2
O_TRUNC = 16
O_CLOEXEC = 32
O_EXCL = 0x1000
)
// Rfork flags
const (
RFNAMEG = 1 << 0
RFENVG = 1 << 1
RFFDG = 1 << 2
RFNOTEG = 1 << 3
RFPROC = 1 << 4
RFMEM = 1 << 5
RFNOWAIT = 1 << 6
RFCNAMEG = 1 << 10
RFCENVG = 1 << 11
RFCFDG = 1 << 12
RFREND = 1 << 13
RFNOMNT = 1 << 14
)
// Qid.Type bits
const (
QTDIR = 0x80
QTAPPEND = 0x40
QTEXCL = 0x20
QTMOUNT = 0x10
QTAUTH = 0x08
QTTMP = 0x04
QTFILE = 0x00
)
// Dir.Mode bits
const (
DMDIR = 0x80000000
DMAPPEND = 0x40000000
DMEXCL = 0x20000000
DMMOUNT = 0x10000000
DMAUTH = 0x08000000
DMTMP = 0x04000000
DMREAD = 0x4
DMWRITE = 0x2
DMEXEC = 0x1
)
const (
STATMAX = 65535
ERRMAX = 128
STATFIXLEN = 49
)
// Mount and bind flags
const (
MREPL = 0x0000
MBEFORE = 0x0001
MAFTER = 0x0002
MORDER = 0x0003
MCREATE = 0x0004
MCACHE = 0x0010
MMASK = 0x0017
)

212
vendor/github.com/fatih/color/vendor/golang.org/x/sys/plan9/dir_plan9.go generated vendored Normal file
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// Copyright 2012 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Plan 9 directory marshalling. See intro(5).
package plan9
import "errors"
var (
ErrShortStat = errors.New("stat buffer too short")
ErrBadStat = errors.New("malformed stat buffer")
ErrBadName = errors.New("bad character in file name")
)
// A Qid represents a 9P server's unique identification for a file.
type Qid struct {
Path uint64 // the file server's unique identification for the file
Vers uint32 // version number for given Path
Type uint8 // the type of the file (plan9.QTDIR for example)
}
// A Dir contains the metadata for a file.
type Dir struct {
// system-modified data
Type uint16 // server type
Dev uint32 // server subtype
// file data
Qid Qid // unique id from server
Mode uint32 // permissions
Atime uint32 // last read time
Mtime uint32 // last write time
Length int64 // file length
Name string // last element of path
Uid string // owner name
Gid string // group name
Muid string // last modifier name
}
var nullDir = Dir{
Type: ^uint16(0),
Dev: ^uint32(0),
Qid: Qid{
Path: ^uint64(0),
Vers: ^uint32(0),
Type: ^uint8(0),
},
Mode: ^uint32(0),
Atime: ^uint32(0),
Mtime: ^uint32(0),
Length: ^int64(0),
}
// Null assigns special "don't touch" values to members of d to
// avoid modifying them during plan9.Wstat.
func (d *Dir) Null() { *d = nullDir }
// Marshal encodes a 9P stat message corresponding to d into b
//
// If there isn't enough space in b for a stat message, ErrShortStat is returned.
func (d *Dir) Marshal(b []byte) (n int, err error) {
n = STATFIXLEN + len(d.Name) + len(d.Uid) + len(d.Gid) + len(d.Muid)
if n > len(b) {
return n, ErrShortStat
}
for _, c := range d.Name {
if c == '/' {
return n, ErrBadName
}
}
b = pbit16(b, uint16(n)-2)
b = pbit16(b, d.Type)
b = pbit32(b, d.Dev)
b = pbit8(b, d.Qid.Type)
b = pbit32(b, d.Qid.Vers)
b = pbit64(b, d.Qid.Path)
b = pbit32(b, d.Mode)
b = pbit32(b, d.Atime)
b = pbit32(b, d.Mtime)
b = pbit64(b, uint64(d.Length))
b = pstring(b, d.Name)
b = pstring(b, d.Uid)
b = pstring(b, d.Gid)
b = pstring(b, d.Muid)
return n, nil
}
// UnmarshalDir decodes a single 9P stat message from b and returns the resulting Dir.
//
// If b is too small to hold a valid stat message, ErrShortStat is returned.
//
// If the stat message itself is invalid, ErrBadStat is returned.
func UnmarshalDir(b []byte) (*Dir, error) {
if len(b) < STATFIXLEN {
return nil, ErrShortStat
}
size, buf := gbit16(b)
if len(b) != int(size)+2 {
return nil, ErrBadStat
}
b = buf
var d Dir
d.Type, b = gbit16(b)
d.Dev, b = gbit32(b)
d.Qid.Type, b = gbit8(b)
d.Qid.Vers, b = gbit32(b)
d.Qid.Path, b = gbit64(b)
d.Mode, b = gbit32(b)
d.Atime, b = gbit32(b)
d.Mtime, b = gbit32(b)
n, b := gbit64(b)
d.Length = int64(n)
var ok bool
if d.Name, b, ok = gstring(b); !ok {
return nil, ErrBadStat
}
if d.Uid, b, ok = gstring(b); !ok {
return nil, ErrBadStat
}
if d.Gid, b, ok = gstring(b); !ok {
return nil, ErrBadStat
}
if d.Muid, b, ok = gstring(b); !ok {
return nil, ErrBadStat
}
return &d, nil
}
// pbit8 copies the 8-bit number v to b and returns the remaining slice of b.
func pbit8(b []byte, v uint8) []byte {
b[0] = byte(v)
return b[1:]
}
// pbit16 copies the 16-bit number v to b in little-endian order and returns the remaining slice of b.
func pbit16(b []byte, v uint16) []byte {
b[0] = byte(v)
b[1] = byte(v >> 8)
return b[2:]
}
// pbit32 copies the 32-bit number v to b in little-endian order and returns the remaining slice of b.
func pbit32(b []byte, v uint32) []byte {
b[0] = byte(v)
b[1] = byte(v >> 8)
b[2] = byte(v >> 16)
b[3] = byte(v >> 24)
return b[4:]
}
// pbit64 copies the 64-bit number v to b in little-endian order and returns the remaining slice of b.
func pbit64(b []byte, v uint64) []byte {
b[0] = byte(v)
b[1] = byte(v >> 8)
b[2] = byte(v >> 16)
b[3] = byte(v >> 24)
b[4] = byte(v >> 32)
b[5] = byte(v >> 40)
b[6] = byte(v >> 48)
b[7] = byte(v >> 56)
return b[8:]
}
// pstring copies the string s to b, prepending it with a 16-bit length in little-endian order, and
// returning the remaining slice of b..
func pstring(b []byte, s string) []byte {
b = pbit16(b, uint16(len(s)))
n := copy(b, s)
return b[n:]
}
// gbit8 reads an 8-bit number from b and returns it with the remaining slice of b.
func gbit8(b []byte) (uint8, []byte) {
return uint8(b[0]), b[1:]
}
// gbit16 reads a 16-bit number in little-endian order from b and returns it with the remaining slice of b.
func gbit16(b []byte) (uint16, []byte) {
return uint16(b[0]) | uint16(b[1])<<8, b[2:]
}
// gbit32 reads a 32-bit number in little-endian order from b and returns it with the remaining slice of b.
func gbit32(b []byte) (uint32, []byte) {
return uint32(b[0]) | uint32(b[1])<<8 | uint32(b[2])<<16 | uint32(b[3])<<24, b[4:]
}
// gbit64 reads a 64-bit number in little-endian order from b and returns it with the remaining slice of b.
func gbit64(b []byte) (uint64, []byte) {
lo := uint32(b[0]) | uint32(b[1])<<8 | uint32(b[2])<<16 | uint32(b[3])<<24
hi := uint32(b[4]) | uint32(b[5])<<8 | uint32(b[6])<<16 | uint32(b[7])<<24
return uint64(lo) | uint64(hi)<<32, b[8:]
}
// gstring reads a string from b, prefixed with a 16-bit length in little-endian order.
// It returns the string with the remaining slice of b and a boolean. If the length is
// greater than the number of bytes in b, the boolean will be false.
func gstring(b []byte) (string, []byte, bool) {
n, b := gbit16(b)
if int(n) > len(b) {
return "", b, false
}
return string(b[:n]), b[n:], true
}

31
vendor/github.com/fatih/color/vendor/golang.org/x/sys/plan9/env_plan9.go generated vendored Normal file
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// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Plan 9 environment variables.
package plan9
import (
"syscall"
)
func Getenv(key string) (value string, found bool) {
return syscall.Getenv(key)
}
func Setenv(key, value string) error {
return syscall.Setenv(key, value)
}
func Clearenv() {
syscall.Clearenv()
}
func Environ() []string {
return syscall.Environ()
}
func Unsetenv(key string) error {
return syscall.Unsetenv(key)
}

50
vendor/github.com/fatih/color/vendor/golang.org/x/sys/plan9/errors_plan9.go generated vendored Normal file
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// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package plan9
import "syscall"
// Constants
const (
// Invented values to support what package os expects.
O_CREAT = 0x02000
O_APPEND = 0x00400
O_NOCTTY = 0x00000
O_NONBLOCK = 0x00000
O_SYNC = 0x00000
O_ASYNC = 0x00000
S_IFMT = 0x1f000
S_IFIFO = 0x1000
S_IFCHR = 0x2000
S_IFDIR = 0x4000
S_IFBLK = 0x6000
S_IFREG = 0x8000
S_IFLNK = 0xa000
S_IFSOCK = 0xc000
)
// Errors
var (
EINVAL = syscall.NewError("bad arg in system call")
ENOTDIR = syscall.NewError("not a directory")
EISDIR = syscall.NewError("file is a directory")
ENOENT = syscall.NewError("file does not exist")
EEXIST = syscall.NewError("file already exists")
EMFILE = syscall.NewError("no free file descriptors")
EIO = syscall.NewError("i/o error")
ENAMETOOLONG = syscall.NewError("file name too long")
EINTR = syscall.NewError("interrupted")
EPERM = syscall.NewError("permission denied")
EBUSY = syscall.NewError("no free devices")
ETIMEDOUT = syscall.NewError("connection timed out")
EPLAN9 = syscall.NewError("not supported by plan 9")
// The following errors do not correspond to any
// Plan 9 system messages. Invented to support
// what package os and others expect.
EACCES = syscall.NewError("access permission denied")
EAFNOSUPPORT = syscall.NewError("address family not supported by protocol")
)

138
vendor/github.com/fatih/color/vendor/golang.org/x/sys/plan9/mkall.sh generated vendored Executable file
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@ -0,0 +1,138 @@
#!/usr/bin/env bash
# Copyright 2009 The Go Authors. All rights reserved.
# Use of this source code is governed by a BSD-style
# license that can be found in the LICENSE file.
# The plan9 package provides access to the raw system call
# interface of the underlying operating system. Porting Go to
# a new architecture/operating system combination requires
# some manual effort, though there are tools that automate
# much of the process. The auto-generated files have names
# beginning with z.
#
# This script runs or (given -n) prints suggested commands to generate z files
# for the current system. Running those commands is not automatic.
# This script is documentation more than anything else.
#
# * asm_${GOOS}_${GOARCH}.s
#
# This hand-written assembly file implements system call dispatch.
# There are three entry points:
#
# func Syscall(trap, a1, a2, a3 uintptr) (r1, r2, err uintptr);
# func Syscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr);
# func RawSyscall(trap, a1, a2, a3 uintptr) (r1, r2, err uintptr);
#
# The first and second are the standard ones; they differ only in
# how many arguments can be passed to the kernel.
# The third is for low-level use by the ForkExec wrapper;
# unlike the first two, it does not call into the scheduler to
# let it know that a system call is running.
#
# * syscall_${GOOS}.go
#
# This hand-written Go file implements system calls that need
# special handling and lists "//sys" comments giving prototypes
# for ones that can be auto-generated. Mksyscall reads those
# comments to generate the stubs.
#
# * syscall_${GOOS}_${GOARCH}.go
#
# Same as syscall_${GOOS}.go except that it contains code specific
# to ${GOOS} on one particular architecture.
#
# * types_${GOOS}.c
#
# This hand-written C file includes standard C headers and then
# creates typedef or enum names beginning with a dollar sign
# (use of $ in variable names is a gcc extension). The hardest
# part about preparing this file is figuring out which headers to
# include and which symbols need to be #defined to get the
# actual data structures that pass through to the kernel system calls.
# Some C libraries present alternate versions for binary compatibility
# and translate them on the way in and out of system calls, but
# there is almost always a #define that can get the real ones.
# See types_darwin.c and types_linux.c for examples.
#
# * zerror_${GOOS}_${GOARCH}.go
#
# This machine-generated file defines the system's error numbers,
# error strings, and signal numbers. The generator is "mkerrors.sh".
# Usually no arguments are needed, but mkerrors.sh will pass its
# arguments on to godefs.
#
# * zsyscall_${GOOS}_${GOARCH}.go
#
# Generated by mksyscall.pl; see syscall_${GOOS}.go above.
#
# * zsysnum_${GOOS}_${GOARCH}.go
#
# Generated by mksysnum_${GOOS}.
#
# * ztypes_${GOOS}_${GOARCH}.go
#
# Generated by godefs; see types_${GOOS}.c above.
GOOSARCH="${GOOS}_${GOARCH}"
# defaults
mksyscall="./mksyscall.pl"
mkerrors="./mkerrors.sh"
zerrors="zerrors_$GOOSARCH.go"
mksysctl=""
zsysctl="zsysctl_$GOOSARCH.go"
mksysnum=
mktypes=
run="sh"
case "$1" in
-syscalls)
for i in zsyscall*go
do
sed 1q $i | sed 's;^// ;;' | sh > _$i && gofmt < _$i > $i
rm _$i
done
exit 0
;;
-n)
run="cat"
shift
esac
case "$#" in
0)
;;
*)
echo 'usage: mkall.sh [-n]' 1>&2
exit 2
esac
case "$GOOSARCH" in
_* | *_ | _)
echo 'undefined $GOOS_$GOARCH:' "$GOOSARCH" 1>&2
exit 1
;;
plan9_386)
mkerrors=
mksyscall="./mksyscall.pl -l32 -plan9"
mksysnum="./mksysnum_plan9.sh /n/sources/plan9/sys/src/libc/9syscall/sys.h"
mktypes="XXX"
;;
*)
echo 'unrecognized $GOOS_$GOARCH: ' "$GOOSARCH" 1>&2
exit 1
;;
esac
(
if [ -n "$mkerrors" ]; then echo "$mkerrors |gofmt >$zerrors"; fi
case "$GOOS" in
plan9)
syscall_goos="syscall_$GOOS.go"
if [ -n "$mksyscall" ]; then echo "$mksyscall $syscall_goos syscall_$GOOSARCH.go |gofmt >zsyscall_$GOOSARCH.go"; fi
;;
esac
if [ -n "$mksysctl" ]; then echo "$mksysctl |gofmt >$zsysctl"; fi
if [ -n "$mksysnum" ]; then echo "$mksysnum |gofmt >zsysnum_$GOOSARCH.go"; fi
if [ -n "$mktypes" ]; then echo "$mktypes types_$GOOS.go |gofmt >ztypes_$GOOSARCH.go"; fi
) | $run

246
vendor/github.com/fatih/color/vendor/golang.org/x/sys/plan9/mkerrors.sh generated vendored Executable file
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@ -0,0 +1,246 @@
#!/usr/bin/env bash
# Copyright 2009 The Go Authors. All rights reserved.
# Use of this source code is governed by a BSD-style
# license that can be found in the LICENSE file.
# Generate Go code listing errors and other #defined constant
# values (ENAMETOOLONG etc.), by asking the preprocessor
# about the definitions.
unset LANG
export LC_ALL=C
export LC_CTYPE=C
CC=${CC:-gcc}
uname=$(uname)
includes='
#include <sys/types.h>
#include <sys/file.h>
#include <fcntl.h>
#include <dirent.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/ip6.h>
#include <netinet/tcp.h>
#include <errno.h>
#include <sys/signal.h>
#include <signal.h>
#include <sys/resource.h>
'
ccflags="$@"
# Write go tool cgo -godefs input.
(
echo package plan9
echo
echo '/*'
indirect="includes_$(uname)"
echo "${!indirect} $includes"
echo '*/'
echo 'import "C"'
echo
echo 'const ('
# The gcc command line prints all the #defines
# it encounters while processing the input
echo "${!indirect} $includes" | $CC -x c - -E -dM $ccflags |
awk '
$1 != "#define" || $2 ~ /\(/ || $3 == "" {next}
$2 ~ /^E([ABCD]X|[BIS]P|[SD]I|S|FL)$/ {next} # 386 registers
$2 ~ /^(SIGEV_|SIGSTKSZ|SIGRT(MIN|MAX))/ {next}
$2 ~ /^(SCM_SRCRT)$/ {next}
$2 ~ /^(MAP_FAILED)$/ {next}
$2 !~ /^ETH_/ &&
$2 !~ /^EPROC_/ &&
$2 !~ /^EQUIV_/ &&
$2 !~ /^EXPR_/ &&
$2 ~ /^E[A-Z0-9_]+$/ ||
$2 ~ /^B[0-9_]+$/ ||
$2 ~ /^V[A-Z0-9]+$/ ||
$2 ~ /^CS[A-Z0-9]/ ||
$2 ~ /^I(SIG|CANON|CRNL|EXTEN|MAXBEL|STRIP|UTF8)$/ ||
$2 ~ /^IGN/ ||
$2 ~ /^IX(ON|ANY|OFF)$/ ||
$2 ~ /^IN(LCR|PCK)$/ ||
$2 ~ /(^FLU?SH)|(FLU?SH$)/ ||
$2 ~ /^C(LOCAL|READ)$/ ||
$2 == "BRKINT" ||
$2 == "HUPCL" ||
$2 == "PENDIN" ||
$2 == "TOSTOP" ||
$2 ~ /^PAR/ ||
$2 ~ /^SIG[^_]/ ||
$2 ~ /^O[CNPFP][A-Z]+[^_][A-Z]+$/ ||
$2 ~ /^IN_/ ||
$2 ~ /^LOCK_(SH|EX|NB|UN)$/ ||
$2 ~ /^(AF|SOCK|SO|SOL|IPPROTO|IP|IPV6|ICMP6|TCP|EVFILT|NOTE|EV|SHUT|PROT|MAP|PACKET|MSG|SCM|MCL|DT|MADV|PR)_/ ||
$2 == "ICMPV6_FILTER" ||
$2 == "SOMAXCONN" ||
$2 == "NAME_MAX" ||
$2 == "IFNAMSIZ" ||
$2 ~ /^CTL_(MAXNAME|NET|QUERY)$/ ||
$2 ~ /^SYSCTL_VERS/ ||
$2 ~ /^(MS|MNT)_/ ||
$2 ~ /^TUN(SET|GET|ATTACH|DETACH)/ ||
$2 ~ /^(O|F|FD|NAME|S|PTRACE|PT)_/ ||
$2 ~ /^LINUX_REBOOT_CMD_/ ||
$2 ~ /^LINUX_REBOOT_MAGIC[12]$/ ||
$2 !~ "NLA_TYPE_MASK" &&
$2 ~ /^(NETLINK|NLM|NLMSG|NLA|IFA|IFAN|RT|RTCF|RTN|RTPROT|RTNH|ARPHRD|ETH_P)_/ ||
$2 ~ /^SIOC/ ||
$2 ~ /^TIOC/ ||
$2 !~ "RTF_BITS" &&
$2 ~ /^(IFF|IFT|NET_RT|RTM|RTF|RTV|RTA|RTAX)_/ ||
$2 ~ /^BIOC/ ||
$2 ~ /^RUSAGE_(SELF|CHILDREN|THREAD)/ ||
$2 ~ /^RLIMIT_(AS|CORE|CPU|DATA|FSIZE|NOFILE|STACK)|RLIM_INFINITY/ ||
$2 ~ /^PRIO_(PROCESS|PGRP|USER)/ ||
$2 ~ /^CLONE_[A-Z_]+/ ||
$2 !~ /^(BPF_TIMEVAL)$/ &&
$2 ~ /^(BPF|DLT)_/ ||
$2 !~ "WMESGLEN" &&
$2 ~ /^W[A-Z0-9]+$/ {printf("\t%s = C.%s\n", $2, $2)}
$2 ~ /^__WCOREFLAG$/ {next}
$2 ~ /^__W[A-Z0-9]+$/ {printf("\t%s = C.%s\n", substr($2,3), $2)}
{next}
' | sort
echo ')'
) >_const.go
# Pull out the error names for later.
errors=$(
echo '#include <errno.h>' | $CC -x c - -E -dM $ccflags |
awk '$1=="#define" && $2 ~ /^E[A-Z0-9_]+$/ { print $2 }' |
sort
)
# Pull out the signal names for later.
signals=$(
echo '#include <signal.h>' | $CC -x c - -E -dM $ccflags |
awk '$1=="#define" && $2 ~ /^SIG[A-Z0-9]+$/ { print $2 }' |
egrep -v '(SIGSTKSIZE|SIGSTKSZ|SIGRT)' |
sort
)
# Again, writing regexps to a file.
echo '#include <errno.h>' | $CC -x c - -E -dM $ccflags |
awk '$1=="#define" && $2 ~ /^E[A-Z0-9_]+$/ { print "^\t" $2 "[ \t]*=" }' |
sort >_error.grep
echo '#include <signal.h>' | $CC -x c - -E -dM $ccflags |
awk '$1=="#define" && $2 ~ /^SIG[A-Z0-9]+$/ { print "^\t" $2 "[ \t]*=" }' |
egrep -v '(SIGSTKSIZE|SIGSTKSZ|SIGRT)' |
sort >_signal.grep
echo '// mkerrors.sh' "$@"
echo '// MACHINE GENERATED BY THE COMMAND ABOVE; DO NOT EDIT'
echo
go tool cgo -godefs -- "$@" _const.go >_error.out
cat _error.out | grep -vf _error.grep | grep -vf _signal.grep
echo
echo '// Errors'
echo 'const ('
cat _error.out | grep -f _error.grep | sed 's/=\(.*\)/= Errno(\1)/'
echo ')'
echo
echo '// Signals'
echo 'const ('
cat _error.out | grep -f _signal.grep | sed 's/=\(.*\)/= Signal(\1)/'
echo ')'
# Run C program to print error and syscall strings.
(
echo -E "
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <ctype.h>
#include <string.h>
#include <signal.h>
#define nelem(x) (sizeof(x)/sizeof((x)[0]))
enum { A = 'A', Z = 'Z', a = 'a', z = 'z' }; // avoid need for single quotes below
int errors[] = {
"
for i in $errors
do
echo -E ' '$i,
done
echo -E "
};
int signals[] = {
"
for i in $signals
do
echo -E ' '$i,
done
# Use -E because on some systems bash builtin interprets \n itself.
echo -E '
};
static int
intcmp(const void *a, const void *b)
{
return *(int*)a - *(int*)b;
}
int
main(void)
{
int i, j, e;
char buf[1024], *p;
printf("\n\n// Error table\n");
printf("var errors = [...]string {\n");
qsort(errors, nelem(errors), sizeof errors[0], intcmp);
for(i=0; i<nelem(errors); i++) {
e = errors[i];
if(i > 0 && errors[i-1] == e)
continue;
strcpy(buf, strerror(e));
// lowercase first letter: Bad -> bad, but STREAM -> STREAM.
if(A <= buf[0] && buf[0] <= Z && a <= buf[1] && buf[1] <= z)
buf[0] += a - A;
printf("\t%d: \"%s\",\n", e, buf);
}
printf("}\n\n");
printf("\n\n// Signal table\n");
printf("var signals = [...]string {\n");
qsort(signals, nelem(signals), sizeof signals[0], intcmp);
for(i=0; i<nelem(signals); i++) {
e = signals[i];
if(i > 0 && signals[i-1] == e)
continue;
strcpy(buf, strsignal(e));
// lowercase first letter: Bad -> bad, but STREAM -> STREAM.
if(A <= buf[0] && buf[0] <= Z && a <= buf[1] && buf[1] <= z)
buf[0] += a - A;
// cut trailing : number.
p = strrchr(buf, ":"[0]);
if(p)
*p = '\0';
printf("\t%d: \"%s\",\n", e, buf);
}
printf("}\n\n");
return 0;
}
'
) >_errors.c
$CC $ccflags -o _errors _errors.c && $GORUN ./_errors && rm -f _errors.c _errors _const.go _error.grep _signal.grep _error.out

319
vendor/github.com/fatih/color/vendor/golang.org/x/sys/plan9/mksyscall.pl generated vendored Executable file
View file

@ -0,0 +1,319 @@
#!/usr/bin/env perl
# Copyright 2009 The Go Authors. All rights reserved.
# Use of this source code is governed by a BSD-style
# license that can be found in the LICENSE file.
# This program reads a file containing function prototypes
# (like syscall_plan9.go) and generates system call bodies.
# The prototypes are marked by lines beginning with "//sys"
# and read like func declarations if //sys is replaced by func, but:
# * The parameter lists must give a name for each argument.
# This includes return parameters.
# * The parameter lists must give a type for each argument:
# the (x, y, z int) shorthand is not allowed.
# * If the return parameter is an error number, it must be named errno.
# A line beginning with //sysnb is like //sys, except that the
# goroutine will not be suspended during the execution of the system
# call. This must only be used for system calls which can never
# block, as otherwise the system call could cause all goroutines to
# hang.
use strict;
my $cmdline = "mksyscall.pl " . join(' ', @ARGV);
my $errors = 0;
my $_32bit = "";
my $plan9 = 0;
my $openbsd = 0;
my $netbsd = 0;
my $dragonfly = 0;
my $nacl = 0;
my $arm = 0; # 64-bit value should use (even, odd)-pair
if($ARGV[0] eq "-b32") {
$_32bit = "big-endian";
shift;
} elsif($ARGV[0] eq "-l32") {
$_32bit = "little-endian";
shift;
}
if($ARGV[0] eq "-plan9") {
$plan9 = 1;
shift;
}
if($ARGV[0] eq "-openbsd") {
$openbsd = 1;
shift;
}
if($ARGV[0] eq "-netbsd") {
$netbsd = 1;
shift;
}
if($ARGV[0] eq "-dragonfly") {
$dragonfly = 1;
shift;
}
if($ARGV[0] eq "-nacl") {
$nacl = 1;
shift;
}
if($ARGV[0] eq "-arm") {
$arm = 1;
shift;
}
if($ARGV[0] =~ /^-/) {
print STDERR "usage: mksyscall.pl [-b32 | -l32] [file ...]\n";
exit 1;
}
sub parseparamlist($) {
my ($list) = @_;
$list =~ s/^\s*//;
$list =~ s/\s*$//;
if($list eq "") {
return ();
}
return split(/\s*,\s*/, $list);
}
sub parseparam($) {
my ($p) = @_;
if($p !~ /^(\S*) (\S*)$/) {
print STDERR "$ARGV:$.: malformed parameter: $p\n";
$errors = 1;
return ("xx", "int");
}
return ($1, $2);
}
my $text = "";
while(<>) {
chomp;
s/\s+/ /g;
s/^\s+//;
s/\s+$//;
my $nonblock = /^\/\/sysnb /;
next if !/^\/\/sys / && !$nonblock;
# Line must be of the form
# func Open(path string, mode int, perm int) (fd int, errno error)
# Split into name, in params, out params.
if(!/^\/\/sys(nb)? (\w+)\(([^()]*)\)\s*(?:\(([^()]+)\))?\s*(?:=\s*((?i)SYS_[A-Z0-9_]+))?$/) {
print STDERR "$ARGV:$.: malformed //sys declaration\n";
$errors = 1;
next;
}
my ($func, $in, $out, $sysname) = ($2, $3, $4, $5);
# Split argument lists on comma.
my @in = parseparamlist($in);
my @out = parseparamlist($out);
# Try in vain to keep people from editing this file.
# The theory is that they jump into the middle of the file
# without reading the header.
$text .= "// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT\n\n";
# Go function header.
my $out_decl = @out ? sprintf(" (%s)", join(', ', @out)) : "";
$text .= sprintf "func %s(%s)%s {\n", $func, join(', ', @in), $out_decl;
# Check if err return available
my $errvar = "";
foreach my $p (@out) {
my ($name, $type) = parseparam($p);
if($type eq "error") {
$errvar = $name;
last;
}
}
# Prepare arguments to Syscall.
my @args = ();
my @uses = ();
my $n = 0;
foreach my $p (@in) {
my ($name, $type) = parseparam($p);
if($type =~ /^\*/) {
push @args, "uintptr(unsafe.Pointer($name))";
} elsif($type eq "string" && $errvar ne "") {
$text .= "\tvar _p$n *byte\n";
$text .= "\t_p$n, $errvar = BytePtrFromString($name)\n";
$text .= "\tif $errvar != nil {\n\t\treturn\n\t}\n";
push @args, "uintptr(unsafe.Pointer(_p$n))";
push @uses, "use(unsafe.Pointer(_p$n))";
$n++;
} elsif($type eq "string") {
print STDERR "$ARGV:$.: $func uses string arguments, but has no error return\n";
$text .= "\tvar _p$n *byte\n";
$text .= "\t_p$n, _ = BytePtrFromString($name)\n";
push @args, "uintptr(unsafe.Pointer(_p$n))";
push @uses, "use(unsafe.Pointer(_p$n))";
$n++;
} elsif($type =~ /^\[\](.*)/) {
# Convert slice into pointer, length.
# Have to be careful not to take address of &a[0] if len == 0:
# pass dummy pointer in that case.
# Used to pass nil, but some OSes or simulators reject write(fd, nil, 0).
$text .= "\tvar _p$n unsafe.Pointer\n";
$text .= "\tif len($name) > 0 {\n\t\t_p$n = unsafe.Pointer(\&${name}[0])\n\t}";
$text .= " else {\n\t\t_p$n = unsafe.Pointer(&_zero)\n\t}";
$text .= "\n";
push @args, "uintptr(_p$n)", "uintptr(len($name))";
$n++;
} elsif($type eq "int64" && ($openbsd || $netbsd)) {
push @args, "0";
if($_32bit eq "big-endian") {
push @args, "uintptr($name>>32)", "uintptr($name)";
} elsif($_32bit eq "little-endian") {
push @args, "uintptr($name)", "uintptr($name>>32)";
} else {
push @args, "uintptr($name)";
}
} elsif($type eq "int64" && $dragonfly) {
if ($func !~ /^extp(read|write)/i) {
push @args, "0";
}
if($_32bit eq "big-endian") {
push @args, "uintptr($name>>32)", "uintptr($name)";
} elsif($_32bit eq "little-endian") {
push @args, "uintptr($name)", "uintptr($name>>32)";
} else {
push @args, "uintptr($name)";
}
} elsif($type eq "int64" && $_32bit ne "") {
if(@args % 2 && $arm) {
# arm abi specifies 64-bit argument uses
# (even, odd) pair
push @args, "0"
}
if($_32bit eq "big-endian") {
push @args, "uintptr($name>>32)", "uintptr($name)";
} else {
push @args, "uintptr($name)", "uintptr($name>>32)";
}
} else {
push @args, "uintptr($name)";
}
}
# Determine which form to use; pad args with zeros.
my $asm = "Syscall";
if ($nonblock) {
$asm = "RawSyscall";
}
if(@args <= 3) {
while(@args < 3) {
push @args, "0";
}
} elsif(@args <= 6) {
$asm .= "6";
while(@args < 6) {
push @args, "0";
}
} elsif(@args <= 9) {
$asm .= "9";
while(@args < 9) {
push @args, "0";
}
} else {
print STDERR "$ARGV:$.: too many arguments to system call\n";
}
# System call number.
if($sysname eq "") {
$sysname = "SYS_$func";
$sysname =~ s/([a-z])([A-Z])/${1}_$2/g; # turn FooBar into Foo_Bar
$sysname =~ y/a-z/A-Z/;
if($nacl) {
$sysname =~ y/A-Z/a-z/;
}
}
# Actual call.
my $args = join(', ', @args);
my $call = "$asm($sysname, $args)";
# Assign return values.
my $body = "";
my @ret = ("_", "_", "_");
my $do_errno = 0;
for(my $i=0; $i<@out; $i++) {
my $p = $out[$i];
my ($name, $type) = parseparam($p);
my $reg = "";
if($name eq "err" && !$plan9) {
$reg = "e1";
$ret[2] = $reg;
$do_errno = 1;
} elsif($name eq "err" && $plan9) {
$ret[0] = "r0";
$ret[2] = "e1";
next;
} else {
$reg = sprintf("r%d", $i);
$ret[$i] = $reg;
}
if($type eq "bool") {
$reg = "$reg != 0";
}
if($type eq "int64" && $_32bit ne "") {
# 64-bit number in r1:r0 or r0:r1.
if($i+2 > @out) {
print STDERR "$ARGV:$.: not enough registers for int64 return\n";
}
if($_32bit eq "big-endian") {
$reg = sprintf("int64(r%d)<<32 | int64(r%d)", $i, $i+1);
} else {
$reg = sprintf("int64(r%d)<<32 | int64(r%d)", $i+1, $i);
}
$ret[$i] = sprintf("r%d", $i);
$ret[$i+1] = sprintf("r%d", $i+1);
}
if($reg ne "e1" || $plan9) {
$body .= "\t$name = $type($reg)\n";
}
}
if ($ret[0] eq "_" && $ret[1] eq "_" && $ret[2] eq "_") {
$text .= "\t$call\n";
} else {
$text .= "\t$ret[0], $ret[1], $ret[2] := $call\n";
}
foreach my $use (@uses) {
$text .= "\t$use\n";
}
$text .= $body;
if ($plan9 && $ret[2] eq "e1") {
$text .= "\tif int32(r0) == -1 {\n";
$text .= "\t\terr = e1\n";
$text .= "\t}\n";
} elsif ($do_errno) {
$text .= "\tif e1 != 0 {\n";
$text .= "\t\terr = e1\n";
$text .= "\t}\n";
}
$text .= "\treturn\n";
$text .= "}\n\n";
}
chomp $text;
chomp $text;
if($errors) {
exit 1;
}
print <<EOF;
// $cmdline
// MACHINE GENERATED BY THE COMMAND ABOVE; DO NOT EDIT
package plan9
import "unsafe"
$text
EOF
exit 0;

23
vendor/github.com/fatih/color/vendor/golang.org/x/sys/plan9/mksysnum_plan9.sh generated vendored Executable file
View file

@ -0,0 +1,23 @@
#!/bin/sh
# Copyright 2009 The Go Authors. All rights reserved.
# Use of this source code is governed by a BSD-style
# license that can be found in the LICENSE file.
COMMAND="mksysnum_plan9.sh $@"
cat <<EOF
// $COMMAND
// MACHINE GENERATED BY THE ABOVE COMMAND; DO NOT EDIT
package plan9
const(
EOF
SP='[ ]' # space or tab
sed "s/^#define${SP}\\([A-Z0-9_][A-Z0-9_]*\\)${SP}${SP}*\\([0-9][0-9]*\\)/SYS_\\1=\\2/g" \
< $1 | grep -v SYS__
cat <<EOF
)
EOF

21
vendor/github.com/fatih/color/vendor/golang.org/x/sys/plan9/pwd_go15_plan9.go generated vendored Normal file
View file

@ -0,0 +1,21 @@
// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build go1.5
package plan9
import "syscall"
func fixwd() {
syscall.Fixwd()
}
func Getwd() (wd string, err error) {
return syscall.Getwd()
}
func Chdir(path string) error {
return syscall.Chdir(path)
}

23
vendor/github.com/fatih/color/vendor/golang.org/x/sys/plan9/pwd_plan9.go generated vendored Normal file
View file

@ -0,0 +1,23 @@
// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !go1.5
package plan9
func fixwd() {
}
func Getwd() (wd string, err error) {
fd, err := open(".", O_RDONLY)
if err != nil {
return "", err
}
defer Close(fd)
return Fd2path(fd)
}
func Chdir(path string) error {
return chdir(path)
}

30
vendor/github.com/fatih/color/vendor/golang.org/x/sys/plan9/race.go generated vendored Normal file
View file

@ -0,0 +1,30 @@
// Copyright 2012 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build plan9,race
package plan9
import (
"runtime"
"unsafe"
)
const raceenabled = true
func raceAcquire(addr unsafe.Pointer) {
runtime.RaceAcquire(addr)
}
func raceReleaseMerge(addr unsafe.Pointer) {
runtime.RaceReleaseMerge(addr)
}
func raceReadRange(addr unsafe.Pointer, len int) {
runtime.RaceReadRange(addr, len)
}
func raceWriteRange(addr unsafe.Pointer, len int) {
runtime.RaceWriteRange(addr, len)
}

25
vendor/github.com/fatih/color/vendor/golang.org/x/sys/plan9/race0.go generated vendored Normal file
View file

@ -0,0 +1,25 @@
// Copyright 2012 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build plan9,!race
package plan9
import (
"unsafe"
)
const raceenabled = false
func raceAcquire(addr unsafe.Pointer) {
}
func raceReleaseMerge(addr unsafe.Pointer) {
}
func raceReadRange(addr unsafe.Pointer, len int) {
}
func raceWriteRange(addr unsafe.Pointer, len int) {
}

22
vendor/github.com/fatih/color/vendor/golang.org/x/sys/plan9/str.go generated vendored Normal file
View file

@ -0,0 +1,22 @@
// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build plan9
package plan9
func itoa(val int) string { // do it here rather than with fmt to avoid dependency
if val < 0 {
return "-" + itoa(-val)
}
var buf [32]byte // big enough for int64
i := len(buf) - 1
for val >= 10 {
buf[i] = byte(val%10 + '0')
i--
val /= 10
}
buf[i] = byte(val + '0')
return string(buf[i:])
}

74
vendor/github.com/fatih/color/vendor/golang.org/x/sys/plan9/syscall.go generated vendored Normal file
View file

@ -0,0 +1,74 @@
// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build plan9
// Package plan9 contains an interface to the low-level operating system
// primitives. OS details vary depending on the underlying system, and
// by default, godoc will display the OS-specific documentation for the current
// system. If you want godoc to display documentation for another
// system, set $GOOS and $GOARCH to the desired system. For example, if
// you want to view documentation for freebsd/arm on linux/amd64, set $GOOS
// to freebsd and $GOARCH to arm.
// The primary use of this package is inside other packages that provide a more
// portable interface to the system, such as "os", "time" and "net". Use
// those packages rather than this one if you can.
// For details of the functions and data types in this package consult
// the manuals for the appropriate operating system.
// These calls return err == nil to indicate success; otherwise
// err represents an operating system error describing the failure and
// holds a value of type syscall.ErrorString.
package plan9 // import "golang.org/x/sys/plan9"
import "unsafe"
// ByteSliceFromString returns a NUL-terminated slice of bytes
// containing the text of s. If s contains a NUL byte at any
// location, it returns (nil, EINVAL).
func ByteSliceFromString(s string) ([]byte, error) {
for i := 0; i < len(s); i++ {
if s[i] == 0 {
return nil, EINVAL
}
}
a := make([]byte, len(s)+1)
copy(a, s)
return a, nil
}
// BytePtrFromString returns a pointer to a NUL-terminated array of
// bytes containing the text of s. If s contains a NUL byte at any
// location, it returns (nil, EINVAL).
func BytePtrFromString(s string) (*byte, error) {
a, err := ByteSliceFromString(s)
if err != nil {
return nil, err
}
return &a[0], nil
}
// Single-word zero for use when we need a valid pointer to 0 bytes.
// See mksyscall.pl.
var _zero uintptr
func (ts *Timespec) Unix() (sec int64, nsec int64) {
return int64(ts.Sec), int64(ts.Nsec)
}
func (tv *Timeval) Unix() (sec int64, nsec int64) {
return int64(tv.Sec), int64(tv.Usec) * 1000
}
func (ts *Timespec) Nano() int64 {
return int64(ts.Sec)*1e9 + int64(ts.Nsec)
}
func (tv *Timeval) Nano() int64 {
return int64(tv.Sec)*1e9 + int64(tv.Usec)*1000
}
// use is a no-op, but the compiler cannot see that it is.
// Calling use(p) ensures that p is kept live until that point.
//go:noescape
func use(p unsafe.Pointer)

349
vendor/github.com/fatih/color/vendor/golang.org/x/sys/plan9/syscall_plan9.go generated vendored Normal file
View file

@ -0,0 +1,349 @@
// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Plan 9 system calls.
// This file is compiled as ordinary Go code,
// but it is also input to mksyscall,
// which parses the //sys lines and generates system call stubs.
// Note that sometimes we use a lowercase //sys name and
// wrap it in our own nicer implementation.
package plan9
import (
"syscall"
"unsafe"
)
// A Note is a string describing a process note.
// It implements the os.Signal interface.
type Note string
func (n Note) Signal() {}
func (n Note) String() string {
return string(n)
}
var (
Stdin = 0
Stdout = 1
Stderr = 2
)
// For testing: clients can set this flag to force
// creation of IPv6 sockets to return EAFNOSUPPORT.
var SocketDisableIPv6 bool
func Syscall(trap, a1, a2, a3 uintptr) (r1, r2 uintptr, err syscall.ErrorString)
func Syscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err syscall.ErrorString)
func RawSyscall(trap, a1, a2, a3 uintptr) (r1, r2, err uintptr)
func RawSyscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr)
func atoi(b []byte) (n uint) {
n = 0
for i := 0; i < len(b); i++ {
n = n*10 + uint(b[i]-'0')
}
return
}
func cstring(s []byte) string {
for i := range s {
if s[i] == 0 {
return string(s[0:i])
}
}
return string(s)
}
func errstr() string {
var buf [ERRMAX]byte
RawSyscall(SYS_ERRSTR, uintptr(unsafe.Pointer(&buf[0])), uintptr(len(buf)), 0)
buf[len(buf)-1] = 0
return cstring(buf[:])
}
// Implemented in assembly to import from runtime.
func exit(code int)
func Exit(code int) { exit(code) }
func readnum(path string) (uint, error) {
var b [12]byte
fd, e := Open(path, O_RDONLY)
if e != nil {
return 0, e
}
defer Close(fd)
n, e := Pread(fd, b[:], 0)
if e != nil {
return 0, e
}
m := 0
for ; m < n && b[m] == ' '; m++ {
}
return atoi(b[m : n-1]), nil
}
func Getpid() (pid int) {
n, _ := readnum("#c/pid")
return int(n)
}
func Getppid() (ppid int) {
n, _ := readnum("#c/ppid")
return int(n)
}
func Read(fd int, p []byte) (n int, err error) {
return Pread(fd, p, -1)
}
func Write(fd int, p []byte) (n int, err error) {
return Pwrite(fd, p, -1)
}
var ioSync int64
//sys fd2path(fd int, buf []byte) (err error)
func Fd2path(fd int) (path string, err error) {
var buf [512]byte
e := fd2path(fd, buf[:])
if e != nil {
return "", e
}
return cstring(buf[:]), nil
}
//sys pipe(p *[2]int32) (err error)
func Pipe(p []int) (err error) {
if len(p) != 2 {
return syscall.ErrorString("bad arg in system call")
}
var pp [2]int32
err = pipe(&pp)
p[0] = int(pp[0])
p[1] = int(pp[1])
return
}
// Underlying system call writes to newoffset via pointer.
// Implemented in assembly to avoid allocation.
func seek(placeholder uintptr, fd int, offset int64, whence int) (newoffset int64, err string)
func Seek(fd int, offset int64, whence int) (newoffset int64, err error) {
newoffset, e := seek(0, fd, offset, whence)
if newoffset == -1 {
err = syscall.ErrorString(e)
}
return
}
func Mkdir(path string, mode uint32) (err error) {
fd, err := Create(path, O_RDONLY, DMDIR|mode)
if fd != -1 {
Close(fd)
}
return
}
type Waitmsg struct {
Pid int
Time [3]uint32
Msg string
}
func (w Waitmsg) Exited() bool { return true }
func (w Waitmsg) Signaled() bool { return false }
func (w Waitmsg) ExitStatus() int {
if len(w.Msg) == 0 {
// a normal exit returns no message
return 0
}
return 1
}
//sys await(s []byte) (n int, err error)
func Await(w *Waitmsg) (err error) {
var buf [512]byte
var f [5][]byte
n, err := await(buf[:])
if err != nil || w == nil {
return
}
nf := 0
p := 0
for i := 0; i < n && nf < len(f)-1; i++ {
if buf[i] == ' ' {
f[nf] = buf[p:i]
p = i + 1
nf++
}
}
f[nf] = buf[p:]
nf++
if nf != len(f) {
return syscall.ErrorString("invalid wait message")
}
w.Pid = int(atoi(f[0]))
w.Time[0] = uint32(atoi(f[1]))
w.Time[1] = uint32(atoi(f[2]))
w.Time[2] = uint32(atoi(f[3]))
w.Msg = cstring(f[4])
if w.Msg == "''" {
// await() returns '' for no error
w.Msg = ""
}
return
}
func Unmount(name, old string) (err error) {
fixwd()
oldp, err := BytePtrFromString(old)
if err != nil {
return err
}
oldptr := uintptr(unsafe.Pointer(oldp))
var r0 uintptr
var e syscall.ErrorString
// bind(2) man page: If name is zero, everything bound or mounted upon old is unbound or unmounted.
if name == "" {
r0, _, e = Syscall(SYS_UNMOUNT, _zero, oldptr, 0)
} else {
namep, err := BytePtrFromString(name)
if err != nil {
return err
}
r0, _, e = Syscall(SYS_UNMOUNT, uintptr(unsafe.Pointer(namep)), oldptr, 0)
}
if int32(r0) == -1 {
err = e
}
return
}
func Fchdir(fd int) (err error) {
path, err := Fd2path(fd)
if err != nil {
return
}
return Chdir(path)
}
type Timespec struct {
Sec int32
Nsec int32
}
type Timeval struct {
Sec int32
Usec int32
}
func NsecToTimeval(nsec int64) (tv Timeval) {
nsec += 999 // round up to microsecond
tv.Usec = int32(nsec % 1e9 / 1e3)
tv.Sec = int32(nsec / 1e9)
return
}
func nsec() int64 {
var scratch int64
r0, _, _ := Syscall(SYS_NSEC, uintptr(unsafe.Pointer(&scratch)), 0, 0)
// TODO(aram): remove hack after I fix _nsec in the pc64 kernel.
if r0 == 0 {
return scratch
}
return int64(r0)
}
func Gettimeofday(tv *Timeval) error {
nsec := nsec()
*tv = NsecToTimeval(nsec)
return nil
}
func Getpagesize() int { return 0x1000 }
func Getegid() (egid int) { return -1 }
func Geteuid() (euid int) { return -1 }
func Getgid() (gid int) { return -1 }
func Getuid() (uid int) { return -1 }
func Getgroups() (gids []int, err error) {
return make([]int, 0), nil
}
//sys open(path string, mode int) (fd int, err error)
func Open(path string, mode int) (fd int, err error) {
fixwd()
return open(path, mode)
}
//sys create(path string, mode int, perm uint32) (fd int, err error)
func Create(path string, mode int, perm uint32) (fd int, err error) {
fixwd()
return create(path, mode, perm)
}
//sys remove(path string) (err error)
func Remove(path string) error {
fixwd()
return remove(path)
}
//sys stat(path string, edir []byte) (n int, err error)
func Stat(path string, edir []byte) (n int, err error) {
fixwd()
return stat(path, edir)
}
//sys bind(name string, old string, flag int) (err error)
func Bind(name string, old string, flag int) (err error) {
fixwd()
return bind(name, old, flag)
}
//sys mount(fd int, afd int, old string, flag int, aname string) (err error)
func Mount(fd int, afd int, old string, flag int, aname string) (err error) {
fixwd()
return mount(fd, afd, old, flag, aname)
}
//sys wstat(path string, edir []byte) (err error)
func Wstat(path string, edir []byte) (err error) {
fixwd()
return wstat(path, edir)
}
//sys chdir(path string) (err error)
//sys Dup(oldfd int, newfd int) (fd int, err error)
//sys Pread(fd int, p []byte, offset int64) (n int, err error)
//sys Pwrite(fd int, p []byte, offset int64) (n int, err error)
//sys Close(fd int) (err error)
//sys Fstat(fd int, edir []byte) (n int, err error)
//sys Fwstat(fd int, edir []byte) (err error)

33
vendor/github.com/fatih/color/vendor/golang.org/x/sys/plan9/syscall_test.go generated vendored Normal file
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@ -0,0 +1,33 @@
// Copyright 2013 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build plan9
package plan9_test
import (
"testing"
"golang.org/x/sys/plan9"
)
func testSetGetenv(t *testing.T, key, value string) {
err := plan9.Setenv(key, value)
if err != nil {
t.Fatalf("Setenv failed to set %q: %v", value, err)
}
newvalue, found := plan9.Getenv(key)
if !found {
t.Fatalf("Getenv failed to find %v variable (want value %q)", key, value)
}
if newvalue != value {
t.Fatalf("Getenv(%v) = %q; want %q", key, newvalue, value)
}
}
func TestEnv(t *testing.T) {
testSetGetenv(t, "TESTENV", "AVALUE")
// make sure TESTENV gets set to "", not deleted
testSetGetenv(t, "TESTENV", "")
}

292
vendor/github.com/fatih/color/vendor/golang.org/x/sys/plan9/zsyscall_plan9_386.go generated vendored Normal file
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@ -0,0 +1,292 @@
// mksyscall.pl -l32 -plan9 syscall_plan9.go
// MACHINE GENERATED BY THE COMMAND ABOVE; DO NOT EDIT
package plan9
import "unsafe"
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func fd2path(fd int, buf []byte) (err error) {
var _p0 unsafe.Pointer
if len(buf) > 0 {
_p0 = unsafe.Pointer(&buf[0])
} else {
_p0 = unsafe.Pointer(&_zero)
}
r0, _, e1 := Syscall(SYS_FD2PATH, uintptr(fd), uintptr(_p0), uintptr(len(buf)))
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func pipe(p *[2]int32) (err error) {
r0, _, e1 := Syscall(SYS_PIPE, uintptr(unsafe.Pointer(p)), 0, 0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func await(s []byte) (n int, err error) {
var _p0 unsafe.Pointer
if len(s) > 0 {
_p0 = unsafe.Pointer(&s[0])
} else {
_p0 = unsafe.Pointer(&_zero)
}
r0, _, e1 := Syscall(SYS_AWAIT, uintptr(_p0), uintptr(len(s)), 0)
n = int(r0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func open(path string, mode int) (fd int, err error) {
var _p0 *byte
_p0, err = BytePtrFromString(path)
if err != nil {
return
}
r0, _, e1 := Syscall(SYS_OPEN, uintptr(unsafe.Pointer(_p0)), uintptr(mode), 0)
use(unsafe.Pointer(_p0))
fd = int(r0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func create(path string, mode int, perm uint32) (fd int, err error) {
var _p0 *byte
_p0, err = BytePtrFromString(path)
if err != nil {
return
}
r0, _, e1 := Syscall(SYS_CREATE, uintptr(unsafe.Pointer(_p0)), uintptr(mode), uintptr(perm))
use(unsafe.Pointer(_p0))
fd = int(r0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func remove(path string) (err error) {
var _p0 *byte
_p0, err = BytePtrFromString(path)
if err != nil {
return
}
r0, _, e1 := Syscall(SYS_REMOVE, uintptr(unsafe.Pointer(_p0)), 0, 0)
use(unsafe.Pointer(_p0))
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func stat(path string, edir []byte) (n int, err error) {
var _p0 *byte
_p0, err = BytePtrFromString(path)
if err != nil {
return
}
var _p1 unsafe.Pointer
if len(edir) > 0 {
_p1 = unsafe.Pointer(&edir[0])
} else {
_p1 = unsafe.Pointer(&_zero)
}
r0, _, e1 := Syscall(SYS_STAT, uintptr(unsafe.Pointer(_p0)), uintptr(_p1), uintptr(len(edir)))
use(unsafe.Pointer(_p0))
n = int(r0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func bind(name string, old string, flag int) (err error) {
var _p0 *byte
_p0, err = BytePtrFromString(name)
if err != nil {
return
}
var _p1 *byte
_p1, err = BytePtrFromString(old)
if err != nil {
return
}
r0, _, e1 := Syscall(SYS_BIND, uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(_p1)), uintptr(flag))
use(unsafe.Pointer(_p0))
use(unsafe.Pointer(_p1))
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func mount(fd int, afd int, old string, flag int, aname string) (err error) {
var _p0 *byte
_p0, err = BytePtrFromString(old)
if err != nil {
return
}
var _p1 *byte
_p1, err = BytePtrFromString(aname)
if err != nil {
return
}
r0, _, e1 := Syscall6(SYS_MOUNT, uintptr(fd), uintptr(afd), uintptr(unsafe.Pointer(_p0)), uintptr(flag), uintptr(unsafe.Pointer(_p1)), 0)
use(unsafe.Pointer(_p0))
use(unsafe.Pointer(_p1))
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func wstat(path string, edir []byte) (err error) {
var _p0 *byte
_p0, err = BytePtrFromString(path)
if err != nil {
return
}
var _p1 unsafe.Pointer
if len(edir) > 0 {
_p1 = unsafe.Pointer(&edir[0])
} else {
_p1 = unsafe.Pointer(&_zero)
}
r0, _, e1 := Syscall(SYS_WSTAT, uintptr(unsafe.Pointer(_p0)), uintptr(_p1), uintptr(len(edir)))
use(unsafe.Pointer(_p0))
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func chdir(path string) (err error) {
var _p0 *byte
_p0, err = BytePtrFromString(path)
if err != nil {
return
}
r0, _, e1 := Syscall(SYS_CHDIR, uintptr(unsafe.Pointer(_p0)), 0, 0)
use(unsafe.Pointer(_p0))
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Dup(oldfd int, newfd int) (fd int, err error) {
r0, _, e1 := Syscall(SYS_DUP, uintptr(oldfd), uintptr(newfd), 0)
fd = int(r0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pread(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])
} else {
_p0 = unsafe.Pointer(&_zero)
}
r0, _, e1 := Syscall6(SYS_PREAD, uintptr(fd), uintptr(_p0), uintptr(len(p)), uintptr(offset), uintptr(offset>>32), 0)
n = int(r0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pwrite(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])
} else {
_p0 = unsafe.Pointer(&_zero)
}
r0, _, e1 := Syscall6(SYS_PWRITE, uintptr(fd), uintptr(_p0), uintptr(len(p)), uintptr(offset), uintptr(offset>>32), 0)
n = int(r0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Close(fd int) (err error) {
r0, _, e1 := Syscall(SYS_CLOSE, uintptr(fd), 0, 0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Fstat(fd int, edir []byte) (n int, err error) {
var _p0 unsafe.Pointer
if len(edir) > 0 {
_p0 = unsafe.Pointer(&edir[0])
} else {
_p0 = unsafe.Pointer(&_zero)
}
r0, _, e1 := Syscall(SYS_FSTAT, uintptr(fd), uintptr(_p0), uintptr(len(edir)))
n = int(r0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Fwstat(fd int, edir []byte) (err error) {
var _p0 unsafe.Pointer
if len(edir) > 0 {
_p0 = unsafe.Pointer(&edir[0])
} else {
_p0 = unsafe.Pointer(&_zero)
}
r0, _, e1 := Syscall(SYS_FWSTAT, uintptr(fd), uintptr(_p0), uintptr(len(edir)))
if int32(r0) == -1 {
err = e1
}
return
}

292
vendor/github.com/fatih/color/vendor/golang.org/x/sys/plan9/zsyscall_plan9_amd64.go generated vendored Normal file
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@ -0,0 +1,292 @@
// mksyscall.pl -l32 -plan9 syscall_plan9.go
// MACHINE GENERATED BY THE COMMAND ABOVE; DO NOT EDIT
package plan9
import "unsafe"
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func fd2path(fd int, buf []byte) (err error) {
var _p0 unsafe.Pointer
if len(buf) > 0 {
_p0 = unsafe.Pointer(&buf[0])
} else {
_p0 = unsafe.Pointer(&_zero)
}
r0, _, e1 := Syscall(SYS_FD2PATH, uintptr(fd), uintptr(_p0), uintptr(len(buf)))
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func pipe(p *[2]int32) (err error) {
r0, _, e1 := Syscall(SYS_PIPE, uintptr(unsafe.Pointer(p)), 0, 0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func await(s []byte) (n int, err error) {
var _p0 unsafe.Pointer
if len(s) > 0 {
_p0 = unsafe.Pointer(&s[0])
} else {
_p0 = unsafe.Pointer(&_zero)
}
r0, _, e1 := Syscall(SYS_AWAIT, uintptr(_p0), uintptr(len(s)), 0)
n = int(r0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func open(path string, mode int) (fd int, err error) {
var _p0 *byte
_p0, err = BytePtrFromString(path)
if err != nil {
return
}
r0, _, e1 := Syscall(SYS_OPEN, uintptr(unsafe.Pointer(_p0)), uintptr(mode), 0)
use(unsafe.Pointer(_p0))
fd = int(r0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func create(path string, mode int, perm uint32) (fd int, err error) {
var _p0 *byte
_p0, err = BytePtrFromString(path)
if err != nil {
return
}
r0, _, e1 := Syscall(SYS_CREATE, uintptr(unsafe.Pointer(_p0)), uintptr(mode), uintptr(perm))
use(unsafe.Pointer(_p0))
fd = int(r0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func remove(path string) (err error) {
var _p0 *byte
_p0, err = BytePtrFromString(path)
if err != nil {
return
}
r0, _, e1 := Syscall(SYS_REMOVE, uintptr(unsafe.Pointer(_p0)), 0, 0)
use(unsafe.Pointer(_p0))
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func stat(path string, edir []byte) (n int, err error) {
var _p0 *byte
_p0, err = BytePtrFromString(path)
if err != nil {
return
}
var _p1 unsafe.Pointer
if len(edir) > 0 {
_p1 = unsafe.Pointer(&edir[0])
} else {
_p1 = unsafe.Pointer(&_zero)
}
r0, _, e1 := Syscall(SYS_STAT, uintptr(unsafe.Pointer(_p0)), uintptr(_p1), uintptr(len(edir)))
use(unsafe.Pointer(_p0))
n = int(r0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func bind(name string, old string, flag int) (err error) {
var _p0 *byte
_p0, err = BytePtrFromString(name)
if err != nil {
return
}
var _p1 *byte
_p1, err = BytePtrFromString(old)
if err != nil {
return
}
r0, _, e1 := Syscall(SYS_BIND, uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(_p1)), uintptr(flag))
use(unsafe.Pointer(_p0))
use(unsafe.Pointer(_p1))
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func mount(fd int, afd int, old string, flag int, aname string) (err error) {
var _p0 *byte
_p0, err = BytePtrFromString(old)
if err != nil {
return
}
var _p1 *byte
_p1, err = BytePtrFromString(aname)
if err != nil {
return
}
r0, _, e1 := Syscall6(SYS_MOUNT, uintptr(fd), uintptr(afd), uintptr(unsafe.Pointer(_p0)), uintptr(flag), uintptr(unsafe.Pointer(_p1)), 0)
use(unsafe.Pointer(_p0))
use(unsafe.Pointer(_p1))
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func wstat(path string, edir []byte) (err error) {
var _p0 *byte
_p0, err = BytePtrFromString(path)
if err != nil {
return
}
var _p1 unsafe.Pointer
if len(edir) > 0 {
_p1 = unsafe.Pointer(&edir[0])
} else {
_p1 = unsafe.Pointer(&_zero)
}
r0, _, e1 := Syscall(SYS_WSTAT, uintptr(unsafe.Pointer(_p0)), uintptr(_p1), uintptr(len(edir)))
use(unsafe.Pointer(_p0))
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func chdir(path string) (err error) {
var _p0 *byte
_p0, err = BytePtrFromString(path)
if err != nil {
return
}
r0, _, e1 := Syscall(SYS_CHDIR, uintptr(unsafe.Pointer(_p0)), 0, 0)
use(unsafe.Pointer(_p0))
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Dup(oldfd int, newfd int) (fd int, err error) {
r0, _, e1 := Syscall(SYS_DUP, uintptr(oldfd), uintptr(newfd), 0)
fd = int(r0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pread(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])
} else {
_p0 = unsafe.Pointer(&_zero)
}
r0, _, e1 := Syscall6(SYS_PREAD, uintptr(fd), uintptr(_p0), uintptr(len(p)), uintptr(offset), uintptr(offset>>32), 0)
n = int(r0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pwrite(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])
} else {
_p0 = unsafe.Pointer(&_zero)
}
r0, _, e1 := Syscall6(SYS_PWRITE, uintptr(fd), uintptr(_p0), uintptr(len(p)), uintptr(offset), uintptr(offset>>32), 0)
n = int(r0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Close(fd int) (err error) {
r0, _, e1 := Syscall(SYS_CLOSE, uintptr(fd), 0, 0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Fstat(fd int, edir []byte) (n int, err error) {
var _p0 unsafe.Pointer
if len(edir) > 0 {
_p0 = unsafe.Pointer(&edir[0])
} else {
_p0 = unsafe.Pointer(&_zero)
}
r0, _, e1 := Syscall(SYS_FSTAT, uintptr(fd), uintptr(_p0), uintptr(len(edir)))
n = int(r0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Fwstat(fd int, edir []byte) (err error) {
var _p0 unsafe.Pointer
if len(edir) > 0 {
_p0 = unsafe.Pointer(&edir[0])
} else {
_p0 = unsafe.Pointer(&_zero)
}
r0, _, e1 := Syscall(SYS_FWSTAT, uintptr(fd), uintptr(_p0), uintptr(len(edir)))
if int32(r0) == -1 {
err = e1
}
return
}

284
vendor/github.com/fatih/color/vendor/golang.org/x/sys/plan9/zsyscall_plan9_arm.go generated vendored Normal file
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@ -0,0 +1,284 @@
// mksyscall.pl -l32 -plan9 -tags plan9,arm syscall_plan9.go
// MACHINE GENERATED BY THE COMMAND ABOVE; DO NOT EDIT
// +build plan9,arm
package plan9
import "unsafe"
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func fd2path(fd int, buf []byte) (err error) {
var _p0 unsafe.Pointer
if len(buf) > 0 {
_p0 = unsafe.Pointer(&buf[0])
} else {
_p0 = unsafe.Pointer(&_zero)
}
r0, _, e1 := Syscall(SYS_FD2PATH, uintptr(fd), uintptr(_p0), uintptr(len(buf)))
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func pipe(p *[2]int32) (err error) {
r0, _, e1 := Syscall(SYS_PIPE, uintptr(unsafe.Pointer(p)), 0, 0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func await(s []byte) (n int, err error) {
var _p0 unsafe.Pointer
if len(s) > 0 {
_p0 = unsafe.Pointer(&s[0])
} else {
_p0 = unsafe.Pointer(&_zero)
}
r0, _, e1 := Syscall(SYS_AWAIT, uintptr(_p0), uintptr(len(s)), 0)
n = int(r0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func open(path string, mode int) (fd int, err error) {
var _p0 *byte
_p0, err = BytePtrFromString(path)
if err != nil {
return
}
r0, _, e1 := Syscall(SYS_OPEN, uintptr(unsafe.Pointer(_p0)), uintptr(mode), 0)
fd = int(r0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func create(path string, mode int, perm uint32) (fd int, err error) {
var _p0 *byte
_p0, err = BytePtrFromString(path)
if err != nil {
return
}
r0, _, e1 := Syscall(SYS_CREATE, uintptr(unsafe.Pointer(_p0)), uintptr(mode), uintptr(perm))
fd = int(r0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func remove(path string) (err error) {
var _p0 *byte
_p0, err = BytePtrFromString(path)
if err != nil {
return
}
r0, _, e1 := Syscall(SYS_REMOVE, uintptr(unsafe.Pointer(_p0)), 0, 0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func stat(path string, edir []byte) (n int, err error) {
var _p0 *byte
_p0, err = BytePtrFromString(path)
if err != nil {
return
}
var _p1 unsafe.Pointer
if len(edir) > 0 {
_p1 = unsafe.Pointer(&edir[0])
} else {
_p1 = unsafe.Pointer(&_zero)
}
r0, _, e1 := Syscall(SYS_STAT, uintptr(unsafe.Pointer(_p0)), uintptr(_p1), uintptr(len(edir)))
n = int(r0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func bind(name string, old string, flag int) (err error) {
var _p0 *byte
_p0, err = BytePtrFromString(name)
if err != nil {
return
}
var _p1 *byte
_p1, err = BytePtrFromString(old)
if err != nil {
return
}
r0, _, e1 := Syscall(SYS_BIND, uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(_p1)), uintptr(flag))
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func mount(fd int, afd int, old string, flag int, aname string) (err error) {
var _p0 *byte
_p0, err = BytePtrFromString(old)
if err != nil {
return
}
var _p1 *byte
_p1, err = BytePtrFromString(aname)
if err != nil {
return
}
r0, _, e1 := Syscall6(SYS_MOUNT, uintptr(fd), uintptr(afd), uintptr(unsafe.Pointer(_p0)), uintptr(flag), uintptr(unsafe.Pointer(_p1)), 0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func wstat(path string, edir []byte) (err error) {
var _p0 *byte
_p0, err = BytePtrFromString(path)
if err != nil {
return
}
var _p1 unsafe.Pointer
if len(edir) > 0 {
_p1 = unsafe.Pointer(&edir[0])
} else {
_p1 = unsafe.Pointer(&_zero)
}
r0, _, e1 := Syscall(SYS_WSTAT, uintptr(unsafe.Pointer(_p0)), uintptr(_p1), uintptr(len(edir)))
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func chdir(path string) (err error) {
var _p0 *byte
_p0, err = BytePtrFromString(path)
if err != nil {
return
}
r0, _, e1 := Syscall(SYS_CHDIR, uintptr(unsafe.Pointer(_p0)), 0, 0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Dup(oldfd int, newfd int) (fd int, err error) {
r0, _, e1 := Syscall(SYS_DUP, uintptr(oldfd), uintptr(newfd), 0)
fd = int(r0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pread(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])
} else {
_p0 = unsafe.Pointer(&_zero)
}
r0, _, e1 := Syscall6(SYS_PREAD, uintptr(fd), uintptr(_p0), uintptr(len(p)), uintptr(offset), uintptr(offset>>32), 0)
n = int(r0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pwrite(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])
} else {
_p0 = unsafe.Pointer(&_zero)
}
r0, _, e1 := Syscall6(SYS_PWRITE, uintptr(fd), uintptr(_p0), uintptr(len(p)), uintptr(offset), uintptr(offset>>32), 0)
n = int(r0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Close(fd int) (err error) {
r0, _, e1 := Syscall(SYS_CLOSE, uintptr(fd), 0, 0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Fstat(fd int, edir []byte) (n int, err error) {
var _p0 unsafe.Pointer
if len(edir) > 0 {
_p0 = unsafe.Pointer(&edir[0])
} else {
_p0 = unsafe.Pointer(&_zero)
}
r0, _, e1 := Syscall(SYS_FSTAT, uintptr(fd), uintptr(_p0), uintptr(len(edir)))
n = int(r0)
if int32(r0) == -1 {
err = e1
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Fwstat(fd int, edir []byte) (err error) {
var _p0 unsafe.Pointer
if len(edir) > 0 {
_p0 = unsafe.Pointer(&edir[0])
} else {
_p0 = unsafe.Pointer(&_zero)
}
r0, _, e1 := Syscall(SYS_FWSTAT, uintptr(fd), uintptr(_p0), uintptr(len(edir)))
if int32(r0) == -1 {
err = e1
}
return
}

49
vendor/github.com/fatih/color/vendor/golang.org/x/sys/plan9/zsysnum_plan9.go generated vendored Normal file
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// mksysnum_plan9.sh /opt/plan9/sys/src/libc/9syscall/sys.h
// MACHINE GENERATED BY THE ABOVE COMMAND; DO NOT EDIT
package plan9
const (
SYS_SYSR1 = 0
SYS_BIND = 2
SYS_CHDIR = 3
SYS_CLOSE = 4
SYS_DUP = 5
SYS_ALARM = 6
SYS_EXEC = 7
SYS_EXITS = 8
SYS_FAUTH = 10
SYS_SEGBRK = 12
SYS_OPEN = 14
SYS_OSEEK = 16
SYS_SLEEP = 17
SYS_RFORK = 19
SYS_PIPE = 21
SYS_CREATE = 22
SYS_FD2PATH = 23
SYS_BRK_ = 24
SYS_REMOVE = 25
SYS_NOTIFY = 28
SYS_NOTED = 29
SYS_SEGATTACH = 30
SYS_SEGDETACH = 31
SYS_SEGFREE = 32
SYS_SEGFLUSH = 33
SYS_RENDEZVOUS = 34
SYS_UNMOUNT = 35
SYS_SEMACQUIRE = 37
SYS_SEMRELEASE = 38
SYS_SEEK = 39
SYS_FVERSION = 40
SYS_ERRSTR = 41
SYS_STAT = 42
SYS_FSTAT = 43
SYS_WSTAT = 44
SYS_FWSTAT = 45
SYS_MOUNT = 46
SYS_AWAIT = 47
SYS_PREAD = 50
SYS_PWRITE = 51
SYS_TSEMACQUIRE = 52
SYS_NSEC = 53
)

2
vendor/github.com/fatih/color/vendor/golang.org/x/sys/unix/.gitignore generated vendored Normal file
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_obj/
unix.test

173
vendor/github.com/fatih/color/vendor/golang.org/x/sys/unix/README.md generated vendored Normal file
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# Building `sys/unix`
The sys/unix package provides access to the raw system call interface of the
underlying operating system. See: https://godoc.org/golang.org/x/sys/unix
Porting Go to a new architecture/OS combination or adding syscalls, types, or
constants to an existing architecture/OS pair requires some manual effort;
however, there are tools that automate much of the process.
## Build Systems
There are currently two ways we generate the necessary files. We are currently
migrating the build system to use containers so the builds are reproducible.
This is being done on an OS-by-OS basis. Please update this documentation as
components of the build system change.
### Old Build System (currently for `GOOS != "Linux" || GOARCH == "sparc64"`)
The old build system generates the Go files based on the C header files
present on your system. This means that files
for a given GOOS/GOARCH pair must be generated on a system with that OS and
architecture. This also means that the generated code can differ from system
to system, based on differences in the header files.
To avoid this, if you are using the old build system, only generate the Go
files on an installation with unmodified header files. It is also important to
keep track of which version of the OS the files were generated from (ex.
Darwin 14 vs Darwin 15). This makes it easier to track the progress of changes
and have each OS upgrade correspond to a single change.
To build the files for your current OS and architecture, make sure GOOS and
GOARCH are set correctly and run `mkall.sh`. This will generate the files for
your specific system. Running `mkall.sh -n` shows the commands that will be run.
Requirements: bash, perl, go
### New Build System (currently for `GOOS == "Linux" && GOARCH != "sparc64"`)
The new build system uses a Docker container to generate the go files directly
from source checkouts of the kernel and various system libraries. This means
that on any platform that supports Docker, all the files using the new build
system can be generated at once, and generated files will not change based on
what the person running the scripts has installed on their computer.
The OS specific files for the new build system are located in the `${GOOS}`
directory, and the build is coordinated by the `${GOOS}/mkall.go` program. When
the kernel or system library updates, modify the Dockerfile at
`${GOOS}/Dockerfile` to checkout the new release of the source.
To build all the files under the new build system, you must be on an amd64/Linux
system and have your GOOS and GOARCH set accordingly. Running `mkall.sh` will
then generate all of the files for all of the GOOS/GOARCH pairs in the new build
system. Running `mkall.sh -n` shows the commands that will be run.
Requirements: bash, perl, go, docker
## Component files
This section describes the various files used in the code generation process.
It also contains instructions on how to modify these files to add a new
architecture/OS or to add additional syscalls, types, or constants. Note that
if you are using the new build system, the scripts cannot be called normally.
They must be called from within the docker container.
### asm files
The hand-written assembly file at `asm_${GOOS}_${GOARCH}.s` implements system
call dispatch. There are three entry points:
```
func Syscall(trap, a1, a2, a3 uintptr) (r1, r2, err uintptr)
func Syscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr)
func RawSyscall(trap, a1, a2, a3 uintptr) (r1, r2, err uintptr)
```
The first and second are the standard ones; they differ only in how many
arguments can be passed to the kernel. The third is for low-level use by the
ForkExec wrapper. Unlike the first two, it does not call into the scheduler to
let it know that a system call is running.
When porting Go to an new architecture/OS, this file must be implemented for
each GOOS/GOARCH pair.
### mksysnum
Mksysnum is a script located at `${GOOS}/mksysnum.pl` (or `mksysnum_${GOOS}.pl`
for the old system). This script takes in a list of header files containing the
syscall number declarations and parses them to produce the corresponding list of
Go numeric constants. See `zsysnum_${GOOS}_${GOARCH}.go` for the generated
constants.
Adding new syscall numbers is mostly done by running the build on a sufficiently
new installation of the target OS (or updating the source checkouts for the
new build system). However, depending on the OS, you make need to update the
parsing in mksysnum.
### mksyscall.pl
The `syscall.go`, `syscall_${GOOS}.go`, `syscall_${GOOS}_${GOARCH}.go` are
hand-written Go files which implement system calls (for unix, the specific OS,
or the specific OS/Architecture pair respectively) that need special handling
and list `//sys` comments giving prototypes for ones that can be generated.
The mksyscall.pl script takes the `//sys` and `//sysnb` comments and converts
them into syscalls. This requires the name of the prototype in the comment to
match a syscall number in the `zsysnum_${GOOS}_${GOARCH}.go` file. The function
prototype can be exported (capitalized) or not.
Adding a new syscall often just requires adding a new `//sys` function prototype
with the desired arguments and a capitalized name so it is exported. However, if
you want the interface to the syscall to be different, often one will make an
unexported `//sys` prototype, an then write a custom wrapper in
`syscall_${GOOS}.go`.
### types files
For each OS, there is a hand-written Go file at `${GOOS}/types.go` (or
`types_${GOOS}.go` on the old system). This file includes standard C headers and
creates Go type aliases to the corresponding C types. The file is then fed
through godef to get the Go compatible definitions. Finally, the generated code
is fed though mkpost.go to format the code correctly and remove any hidden or
private identifiers. This cleaned-up code is written to
`ztypes_${GOOS}_${GOARCH}.go`.
The hardest part about preparing this file is figuring out which headers to
include and which symbols need to be `#define`d to get the actual data
structures that pass through to the kernel system calls. Some C libraries
preset alternate versions for binary compatibility and translate them on the
way in and out of system calls, but there is almost always a `#define` that can
get the real ones.
See `types_darwin.go` and `linux/types.go` for examples.
To add a new type, add in the necessary include statement at the top of the
file (if it is not already there) and add in a type alias line. Note that if
your type is significantly different on different architectures, you may need
some `#if/#elif` macros in your include statements.
### mkerrors.sh
This script is used to generate the system's various constants. This doesn't
just include the error numbers and error strings, but also the signal numbers
an a wide variety of miscellaneous constants. The constants come from the list
of include files in the `includes_${uname}` variable. A regex then picks out
the desired `#define` statements, and generates the corresponding Go constants.
The error numbers and strings are generated from `#include <errno.h>`, and the
signal numbers and strings are generated from `#include <signal.h>`. All of
these constants are written to `zerrors_${GOOS}_${GOARCH}.go` via a C program,
`_errors.c`, which prints out all the constants.
To add a constant, add the header that includes it to the appropriate variable.
Then, edit the regex (if necessary) to match the desired constant. Avoid making
the regex too broad to avoid matching unintended constants.
## Generated files
### `zerror_${GOOS}_${GOARCH}.go`
A file containing all of the system's generated error numbers, error strings,
signal numbers, and constants. Generated by `mkerrors.sh` (see above).
### `zsyscall_${GOOS}_${GOARCH}.go`
A file containing all the generated syscalls for a specific GOOS and GOARCH.
Generated by `mksyscall.pl` (see above).
### `zsysnum_${GOOS}_${GOARCH}.go`
A list of numeric constants for all the syscall number of the specific GOOS
and GOARCH. Generated by mksysnum (see above).
### `ztypes_${GOOS}_${GOARCH}.go`
A file containing Go types for passing into (or returning from) syscalls.
Generated by godefs and the types file (see above).

124
vendor/github.com/fatih/color/vendor/golang.org/x/sys/unix/affinity_linux.go generated vendored Normal file
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// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// CPU affinity functions
package unix
import (
"unsafe"
)
const cpuSetSize = _CPU_SETSIZE / _NCPUBITS
// CPUSet represents a CPU affinity mask.
type CPUSet [cpuSetSize]cpuMask
func schedAffinity(trap uintptr, pid int, set *CPUSet) error {
_, _, e := RawSyscall(trap, uintptr(pid), uintptr(unsafe.Sizeof(*set)), uintptr(unsafe.Pointer(set)))
if e != 0 {
return errnoErr(e)
}
return nil
}
// SchedGetaffinity gets the CPU affinity mask of the thread specified by pid.
// If pid is 0 the calling thread is used.
func SchedGetaffinity(pid int, set *CPUSet) error {
return schedAffinity(SYS_SCHED_GETAFFINITY, pid, set)
}
// SchedSetaffinity sets the CPU affinity mask of the thread specified by pid.
// If pid is 0 the calling thread is used.
func SchedSetaffinity(pid int, set *CPUSet) error {
return schedAffinity(SYS_SCHED_SETAFFINITY, pid, set)
}
// Zero clears the set s, so that it contains no CPUs.
func (s *CPUSet) Zero() {
for i := range s {
s[i] = 0
}
}
func cpuBitsIndex(cpu int) int {
return cpu / _NCPUBITS
}
func cpuBitsMask(cpu int) cpuMask {
return cpuMask(1 << (uint(cpu) % _NCPUBITS))
}
// Set adds cpu to the set s.
func (s *CPUSet) Set(cpu int) {
i := cpuBitsIndex(cpu)
if i < len(s) {
s[i] |= cpuBitsMask(cpu)
}
}
// Clear removes cpu from the set s.
func (s *CPUSet) Clear(cpu int) {
i := cpuBitsIndex(cpu)
if i < len(s) {
s[i] &^= cpuBitsMask(cpu)
}
}
// IsSet reports whether cpu is in the set s.
func (s *CPUSet) IsSet(cpu int) bool {
i := cpuBitsIndex(cpu)
if i < len(s) {
return s[i]&cpuBitsMask(cpu) != 0
}
return false
}
// Count returns the number of CPUs in the set s.
func (s *CPUSet) Count() int {
c := 0
for _, b := range s {
c += onesCount64(uint64(b))
}
return c
}
// onesCount64 is a copy of Go 1.9's math/bits.OnesCount64.
// Once this package can require Go 1.9, we can delete this
// and update the caller to use bits.OnesCount64.
func onesCount64(x uint64) int {
const m0 = 0x5555555555555555 // 01010101 ...
const m1 = 0x3333333333333333 // 00110011 ...
const m2 = 0x0f0f0f0f0f0f0f0f // 00001111 ...
const m3 = 0x00ff00ff00ff00ff // etc.
const m4 = 0x0000ffff0000ffff
// Implementation: Parallel summing of adjacent bits.
// See "Hacker's Delight", Chap. 5: Counting Bits.
// The following pattern shows the general approach:
//
// x = x>>1&(m0&m) + x&(m0&m)
// x = x>>2&(m1&m) + x&(m1&m)
// x = x>>4&(m2&m) + x&(m2&m)
// x = x>>8&(m3&m) + x&(m3&m)
// x = x>>16&(m4&m) + x&(m4&m)
// x = x>>32&(m5&m) + x&(m5&m)
// return int(x)
//
// Masking (& operations) can be left away when there's no
// danger that a field's sum will carry over into the next
// field: Since the result cannot be > 64, 8 bits is enough
// and we can ignore the masks for the shifts by 8 and up.
// Per "Hacker's Delight", the first line can be simplified
// more, but it saves at best one instruction, so we leave
// it alone for clarity.
const m = 1<<64 - 1
x = x>>1&(m0&m) + x&(m0&m)
x = x>>2&(m1&m) + x&(m1&m)
x = (x>>4 + x) & (m2 & m)
x += x >> 8
x += x >> 16
x += x >> 32
return int(x) & (1<<7 - 1)
}

29
vendor/github.com/fatih/color/vendor/golang.org/x/sys/unix/asm_darwin_386.s generated vendored Normal file
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// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !gccgo
#include "textflag.h"
//
// System call support for 386, Darwin
//
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-28
JMP syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-40
JMP syscall·Syscall6(SB)
TEXT ·Syscall9(SB),NOSPLIT,$0-52
JMP syscall·Syscall9(SB)
TEXT ·RawSyscall(SB),NOSPLIT,$0-28
JMP syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-40
JMP syscall·RawSyscall6(SB)

29
vendor/github.com/fatih/color/vendor/golang.org/x/sys/unix/asm_darwin_amd64.s generated vendored Normal file
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// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !gccgo
#include "textflag.h"
//
// System call support for AMD64, Darwin
//
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-56
JMP syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-80
JMP syscall·Syscall6(SB)
TEXT ·Syscall9(SB),NOSPLIT,$0-104
JMP syscall·Syscall9(SB)
TEXT ·RawSyscall(SB),NOSPLIT,$0-56
JMP syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
JMP syscall·RawSyscall6(SB)

30
vendor/github.com/fatih/color/vendor/golang.org/x/sys/unix/asm_darwin_arm.s generated vendored Normal file
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// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !gccgo
// +build arm,darwin
#include "textflag.h"
//
// System call support for ARM, Darwin
//
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-28
B syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-40
B syscall·Syscall6(SB)
TEXT ·Syscall9(SB),NOSPLIT,$0-52
B syscall·Syscall9(SB)
TEXT ·RawSyscall(SB),NOSPLIT,$0-28
B syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-40
B syscall·RawSyscall6(SB)

30
vendor/github.com/fatih/color/vendor/golang.org/x/sys/unix/asm_darwin_arm64.s generated vendored Normal file
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@ -0,0 +1,30 @@
// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !gccgo
// +build arm64,darwin
#include "textflag.h"
//
// System call support for AMD64, Darwin
//
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-56
B syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-80
B syscall·Syscall6(SB)
TEXT ·Syscall9(SB),NOSPLIT,$0-104
B syscall·Syscall9(SB)
TEXT ·RawSyscall(SB),NOSPLIT,$0-56
B syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
B syscall·RawSyscall6(SB)

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