*: switch from godep to glide

Signed-off-by: Antonio Murdaca <runcom@redhat.com>
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Antonio Murdaca 2016-09-17 15:50:35 +02:00
parent 0d7b500cee
commit 4bc8701fc0
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@ -1,2 +0,0 @@
language: go
install: go get -t

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# Mergo
A helper to merge structs and maps in Golang. Useful for configuration default values, avoiding messy if-statements.
Also a lovely [comune](http://en.wikipedia.org/wiki/Mergo) (municipality) in the Province of Ancona in the Italian region Marche.
![Mergo dall'alto](http://www.comune.mergo.an.it/Siti/Mergo/Immagini/Foto/mergo_dall_alto.jpg)
## Status
It is ready for production use. It works fine after extensive use in the wild.
[![Build Status][1]][2]
[![GoDoc][3]][4]
[![GoCard][5]][6]
[1]: https://travis-ci.org/imdario/mergo.png
[2]: https://travis-ci.org/imdario/mergo
[3]: https://godoc.org/github.com/imdario/mergo?status.svg
[4]: https://godoc.org/github.com/imdario/mergo
[5]: https://goreportcard.com/badge/imdario/mergo
[6]: https://goreportcard.com/report/github.com/imdario/mergo
### Important note
Mergo is intended to assign **only** zero value fields on destination with source value. Since April 6th it works like this. Before it didn't work properly, causing some random overwrites. After some issues and PRs I found it didn't merge as I designed it. Thanks to [imdario/mergo#8](https://github.com/imdario/mergo/pull/8) overwriting functions were added and the wrong behavior was clearly detected.
If you were using Mergo **before** April 6th 2015, please check your project works as intended after updating your local copy with ```go get -u github.com/imdario/mergo```. I apologize for any issue caused by its previous behavior and any future bug that Mergo could cause (I hope it won't!) in existing projects after the change (release 0.2.0).
### Mergo in the wild
- [docker/docker](https://github.com/docker/docker/)
- [kubernetes/kubernetes](https://github.com/kubernetes/kubernetes)
- [imdario/zas](https://github.com/imdario/zas)
- [soniah/dnsmadeeasy](https://github.com/soniah/dnsmadeeasy)
- [EagerIO/Stout](https://github.com/EagerIO/Stout)
- [lynndylanhurley/defsynth-api](https://github.com/lynndylanhurley/defsynth-api)
- [russross/canvasassignments](https://github.com/russross/canvasassignments)
- [rdegges/cryptly-api](https://github.com/rdegges/cryptly-api)
- [casualjim/exeggutor](https://github.com/casualjim/exeggutor)
- [divshot/gitling](https://github.com/divshot/gitling)
- [RWJMurphy/gorl](https://github.com/RWJMurphy/gorl)
- [andrerocker/deploy42](https://github.com/andrerocker/deploy42)
- [elwinar/rambler](https://github.com/elwinar/rambler)
- [tmaiaroto/gopartman](https://github.com/tmaiaroto/gopartman)
- [jfbus/impressionist](https://github.com/jfbus/impressionist)
- [Jmeyering/zealot](https://github.com/Jmeyering/zealot)
- [godep-migrator/rigger-host](https://github.com/godep-migrator/rigger-host)
- [Dronevery/MultiwaySwitch-Go](https://github.com/Dronevery/MultiwaySwitch-Go)
- [thoas/picfit](https://github.com/thoas/picfit)
- [mantasmatelis/whooplist-server](https://github.com/mantasmatelis/whooplist-server)
- [jnuthong/item_search](https://github.com/jnuthong/item_search)
- [Iris Web Framework](https://github.com/kataras/iris)
## Installation
go get github.com/imdario/mergo
// use in your .go code
import (
"github.com/imdario/mergo"
)
## Usage
You can only merge same-type structs with exported fields initialized as zero value of their type and same-types maps. Mergo won't merge unexported (private) fields but will do recursively any exported one. Also maps will be merged recursively except for structs inside maps (because they are not addressable using Go reflection).
if err := mergo.Merge(&dst, src); err != nil {
// ...
}
Additionally, you can map a map[string]interface{} to a struct (and otherwise, from struct to map), following the same restrictions as in Merge(). Keys are capitalized to find each corresponding exported field.
if err := mergo.Map(&dst, srcMap); err != nil {
// ...
}
Warning: if you map a struct to map, it won't do it recursively. Don't expect Mergo to map struct members of your struct as map[string]interface{}. They will be just assigned as values.
More information and examples in [godoc documentation](http://godoc.org/github.com/imdario/mergo).
### Nice example
```go
package main
import (
"fmt"
"github.com/imdario/mergo"
)
type Foo struct {
A string
B int64
}
func main() {
src := Foo{
A: "one",
}
dest := Foo{
A: "two",
B: 2,
}
mergo.Merge(&dest, src)
fmt.Println(dest)
// Will print
// {two 2}
}
```
Note: if test are failing due missing package, please execute:
go get gopkg.in/yaml.v1
## Contact me
If I can help you, you have an idea or you are using Mergo in your projects, don't hesitate to drop me a line (or a pull request): [@im_dario](https://twitter.com/im_dario)
## About
Written by [Dario Castañé](http://dario.im).
## License
[BSD 3-Clause](http://opensource.org/licenses/BSD-3-Clause) license, as [Go language](http://golang.org/LICENSE).

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@ -31,7 +31,7 @@ func isExported(field reflect.StructField) bool {
// Traverses recursively both values, assigning src's fields values to dst.
// The map argument tracks comparisons that have already been seen, which allows
// short circuiting on recursive types.
func deepMap(dst, src reflect.Value, visited map[uintptr]*visit, depth int, overwrite bool) (err error) {
func deepMap(dst, src reflect.Value, visited map[uintptr]*visit, depth int) (err error) {
if dst.CanAddr() {
addr := dst.UnsafeAddr()
h := 17 * addr
@ -57,7 +57,7 @@ func deepMap(dst, src reflect.Value, visited map[uintptr]*visit, depth int, over
}
fieldName := field.Name
fieldName = changeInitialCase(fieldName, unicode.ToLower)
if v, ok := dstMap[fieldName]; !ok || (isEmptyValue(reflect.ValueOf(v)) || overwrite) {
if v, ok := dstMap[fieldName]; !ok || isEmptyValue(reflect.ValueOf(v)) {
dstMap[fieldName] = src.Field(i).Interface()
}
}
@ -89,12 +89,12 @@ func deepMap(dst, src reflect.Value, visited map[uintptr]*visit, depth int, over
continue
}
if srcKind == dstKind {
if err = deepMerge(dstElement, srcElement, visited, depth+1, overwrite); err != nil {
if err = deepMerge(dstElement, srcElement, visited, depth+1); err != nil {
return
}
} else {
if srcKind == reflect.Map {
if err = deepMap(dstElement, srcElement, visited, depth+1, overwrite); err != nil {
if err = deepMap(dstElement, srcElement, visited, depth+1); err != nil {
return
}
} else {
@ -118,16 +118,6 @@ func deepMap(dst, src reflect.Value, visited map[uintptr]*visit, depth int, over
// This is separated method from Merge because it is cleaner and it keeps sane
// semantics: merging equal types, mapping different (restricted) types.
func Map(dst, src interface{}) error {
return _map(dst, src, false)
}
// MapWithOverwrite will do the same as Map except that non-empty dst attributes will be overriden by
// non-empty src attribute values.
func MapWithOverwrite(dst, src interface{}) error {
return _map(dst, src, true)
}
func _map(dst, src interface{}, overwrite bool) error {
var (
vDst, vSrc reflect.Value
err error
@ -138,7 +128,7 @@ func _map(dst, src interface{}, overwrite bool) error {
// To be friction-less, we redirect equal-type arguments
// to deepMerge. Only because arguments can be anything.
if vSrc.Kind() == vDst.Kind() {
return deepMerge(vDst, vSrc, make(map[uintptr]*visit), 0, overwrite)
return deepMerge(vDst, vSrc, make(map[uintptr]*visit), 0)
}
switch vSrc.Kind() {
case reflect.Struct:
@ -152,5 +142,5 @@ func _map(dst, src interface{}, overwrite bool) error {
default:
return ErrNotSupported
}
return deepMap(vDst, vSrc, make(map[uintptr]*visit), 0, overwrite)
return deepMap(vDst, vSrc, make(map[uintptr]*visit), 0)
}

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@ -15,7 +15,7 @@ import (
// Traverses recursively both values, assigning src's fields values to dst.
// The map argument tracks comparisons that have already been seen, which allows
// short circuiting on recursive types.
func deepMerge(dst, src reflect.Value, visited map[uintptr]*visit, depth int, overwrite bool) (err error) {
func deepMerge(dst, src reflect.Value, visited map[uintptr]*visit, depth int) (err error) {
if !src.IsValid() {
return
}
@ -35,7 +35,7 @@ func deepMerge(dst, src reflect.Value, visited map[uintptr]*visit, depth int, ov
switch dst.Kind() {
case reflect.Struct:
for i, n := 0, dst.NumField(); i < n; i++ {
if err = deepMerge(dst.Field(i), src.Field(i), visited, depth+1, overwrite); err != nil {
if err = deepMerge(dst.Field(i), src.Field(i), visited, depth+1); err != nil {
return
}
}
@ -46,31 +46,15 @@ func deepMerge(dst, src reflect.Value, visited map[uintptr]*visit, depth int, ov
continue
}
dstElement := dst.MapIndex(key)
switch srcElement.Kind() {
case reflect.Chan, reflect.Func, reflect.Map, reflect.Ptr, reflect.Interface, reflect.Slice:
if srcElement.IsNil() {
continue
}
switch reflect.TypeOf(srcElement.Interface()).Kind() {
case reflect.Struct:
fallthrough
default:
if !srcElement.CanInterface() {
continue
}
switch reflect.TypeOf(srcElement.Interface()).Kind() {
case reflect.Struct:
fallthrough
case reflect.Ptr:
fallthrough
case reflect.Map:
if err = deepMerge(dstElement, srcElement, visited, depth+1, overwrite); err != nil {
return
}
case reflect.Map:
if err = deepMerge(dstElement, srcElement, visited, depth+1); err != nil {
return
}
}
if !isEmptyValue(srcElement) && (overwrite || (!dstElement.IsValid() || isEmptyValue(dst))) {
if dst.IsNil() {
dst.Set(reflect.MakeMap(dst.Type()))
}
if !dstElement.IsValid() {
dst.SetMapIndex(key, srcElement)
}
}
@ -79,36 +63,28 @@ func deepMerge(dst, src reflect.Value, visited map[uintptr]*visit, depth int, ov
case reflect.Interface:
if src.IsNil() {
break
} else if dst.IsNil() || overwrite {
if dst.CanSet() && (overwrite || isEmptyValue(dst)) {
} else if dst.IsNil() {
if dst.CanSet() && isEmptyValue(dst) {
dst.Set(src)
}
} else if err = deepMerge(dst.Elem(), src.Elem(), visited, depth+1, overwrite); err != nil {
} else if err = deepMerge(dst.Elem(), src.Elem(), visited, depth+1); err != nil {
return
}
default:
if dst.CanSet() && !isEmptyValue(src) && (overwrite || isEmptyValue(dst)) {
if dst.CanSet() && !isEmptyValue(src) {
dst.Set(src)
}
}
return
}
// Merge will fill any empty for value type attributes on the dst struct using corresponding
// src attributes if they themselves are not empty. dst and src must be valid same-type structs
// and dst must be a pointer to struct.
// It won't merge unexported (private) fields and will do recursively any exported field.
// Merge sets fields' values in dst from src if they have a zero
// value of their type.
// dst and src must be valid same-type structs and dst must be
// a pointer to struct.
// It won't merge unexported (private) fields and will do recursively
// any exported field.
func Merge(dst, src interface{}) error {
return merge(dst, src, false)
}
// MergeWithOverwrite will do the same as Merge except that non-empty dst attributes will be overriden by
// non-empty src attribute values.
func MergeWithOverwrite(dst, src interface{}) error {
return merge(dst, src, true)
}
func merge(dst, src interface{}, overwrite bool) error {
var (
vDst, vSrc reflect.Value
err error
@ -119,5 +95,5 @@ func merge(dst, src interface{}, overwrite bool) error {
if vDst.Type() != vSrc.Type() {
return ErrDifferentArgumentsTypes
}
return deepMerge(vDst, vSrc, make(map[uintptr]*visit), 0, overwrite)
return deepMerge(vDst, vSrc, make(map[uintptr]*visit), 0)
}