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main: switch to urfave/cli/v2

Browse source 
For now this is a drop in replacement for all the flags curently
implemented

Fixes: #171

Signed-off-by: Vincent Batts <vbatts@hashbangbash.com>
This commit is contained in:
Vincent Batts 2022-04-04 16:06:48 -04:00
parent bc8295f83e
commit 17687d8c29
Signed by: vbatts
GPG key ID: 10937E57733F1362
55 changed files with 13858 additions and 61 deletions
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[flake8]
max-line-length = 120

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*.coverprofile
*.orig
node_modules/
vendor
.idea
internal/*/built-example
coverage.txt
*.exe

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# Contributor Covenant Code of Conduct
## Our Pledge
In the interest of fostering an open and welcoming environment, we as
contributors and maintainers pledge to making participation in our project and
our community a harassment-free experience for everyone, regardless of age, body
size, disability, ethnicity, gender identity and expression, level of experience,
education, socio-economic status, nationality, personal appearance, race,
religion, or sexual identity and orientation.
## Our Standards
Examples of behavior that contributes to creating a positive environment
include:
* Using welcoming and inclusive language
* Being respectful of differing viewpoints and experiences
* Gracefully accepting constructive criticism
* Focusing on what is best for the community
* Showing empathy towards other community members
Examples of unacceptable behavior by participants include:
* The use of sexualized language or imagery and unwelcome sexual attention or
advances
* Trolling, insulting/derogatory comments, and personal or political attacks
* Public or private harassment
* Publishing others' private information, such as a physical or electronic
address, without explicit permission
* Other conduct which could reasonably be considered inappropriate in a
professional setting
## Our Responsibilities
Project maintainers are responsible for clarifying the standards of acceptable
behavior and are expected to take appropriate and fair corrective action in
response to any instances of unacceptable behavior.
Project maintainers have the right and responsibility to remove, edit, or
reject comments, commits, code, wiki edits, issues, and other contributions
that are not aligned to this Code of Conduct, or to ban temporarily or
permanently any contributor for other behaviors that they deem inappropriate,
threatening, offensive, or harmful.
## Scope
This Code of Conduct applies both within project spaces and in public spaces
when an individual is representing the project or its community. Examples of
representing a project or community include using an official project e-mail
address, posting via an official social media account, or acting as an appointed
representative at an online or offline event. Representation of a project may be
further defined and clarified by project maintainers.
## Enforcement
Instances of abusive, harassing, or otherwise unacceptable behavior may be
reported by contacting Dan Buch at dan@meatballhat.com. All complaints will be
reviewed and investigated and will result in a response that is deemed necessary
and appropriate to the circumstances. The project team is obligated to maintain
confidentiality with regard to the reporter of an incident. Further details of
specific enforcement policies may be posted separately.
Project maintainers who do not follow or enforce the Code of Conduct in good
faith may face temporary or permanent repercussions as determined by other
members of the project's leadership.
## Attribution
This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4,
available at https://www.contributor-covenant.org/version/1/4/code-of-conduct.html
[homepage]: https://www.contributor-covenant.org

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MIT License
Copyright (c) 2016 Jeremy Saenz & Contributors
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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cli
===
[![GoDoc](https://godoc.org/github.com/urfave/cli?status.svg)](https://pkg.go.dev/github.com/urfave/cli/v2)
[![codebeat](https://codebeat.co/badges/0a8f30aa-f975-404b-b878-5fab3ae1cc5f)](https://codebeat.co/projects/github-com-urfave-cli)
[![Go Report Card](https://goreportcard.com/badge/urfave/cli)](https://goreportcard.com/report/urfave/cli)
[![codecov](https://codecov.io/gh/urfave/cli/branch/master/graph/badge.svg)](https://codecov.io/gh/urfave/cli)
cli is a simple, fast, and fun package for building command line apps in Go. The
goal is to enable developers to write fast and distributable command line
applications in an expressive way.
## Usage Documentation
Usage documentation exists for each major version. Don't know what version you're on? You're probably using the version from the `master` branch, which is currently `v2`.
- `v2` - [./docs/v2/manual.md](./docs/v2/manual.md)
- `v1` - [./docs/v1/manual.md](./docs/v1/manual.md)
Guides for migrating to newer versions:
- `v1-to-v2` - [./docs/migrate-v1-to-v2.md](./docs/migrate-v1-to-v2.md)
## Installation
Using this package requires a working Go environment. [See the install instructions for Go](http://golang.org/doc/install.html).
Go Modules are required when using this package. [See the go blog guide on using Go Modules](https://blog.golang.org/using-go-modules).
### Using `v2` releases
```
$ GO111MODULE=on go get github.com/urfave/cli/v2
```
```go
...
import (
"github.com/urfave/cli/v2" // imports as package "cli"
)
...
```
### Using `v1` releases
```
$ GO111MODULE=on go get github.com/urfave/cli
```
```go
...
import (
"github.com/urfave/cli"
)
...
```
### GOPATH
Make sure your `PATH` includes the `$GOPATH/bin` directory so your commands can
be easily used:
```
export PATH=$PATH:$GOPATH/bin
```
### Supported platforms
cli is tested against multiple versions of Go on Linux, and against the latest
released version of Go on OS X and Windows. This project uses Github Actions for
builds. To see our currently supported go versions and platforms, look at the [./.github/workflows/cli.yml](https://github.com/urfave/cli/blob/master/.github/workflows/cli.yml).

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package cli
import (
"context"
"flag"
"fmt"
"io"
"os"
"path/filepath"
"sort"
"time"
)
var (
changeLogURL = "https://github.com/urfave/cli/blob/master/docs/CHANGELOG.md"
appActionDeprecationURL = fmt.Sprintf("%s#deprecated-cli-app-action-signature", changeLogURL)
contactSysadmin = "This is an error in the application. Please contact the distributor of this application if this is not you."
errInvalidActionType = NewExitError("ERROR invalid Action type. "+
fmt.Sprintf("Must be `func(*Context`)` or `func(*Context) error). %s", contactSysadmin)+
fmt.Sprintf("See %s", appActionDeprecationURL), 2)
)
// App is the main structure of a cli application. It is recommended that
// an app be created with the cli.NewApp() function
type App struct {
// The name of the program. Defaults to path.Base(os.Args[0])
Name string
// Full name of command for help, defaults to Name
HelpName string
// Description of the program.
Usage string
// Text to override the USAGE section of help
UsageText string
// Description of the program argument format.
ArgsUsage string
// Version of the program
Version string
// Description of the program
Description string
// List of commands to execute
Commands []*Command
// List of flags to parse
Flags []Flag
// Boolean to enable bash completion commands
EnableBashCompletion bool
// Boolean to hide built-in help command and help flag
HideHelp bool
// Boolean to hide built-in help command but keep help flag.
// Ignored if HideHelp is true.
HideHelpCommand bool
// Boolean to hide built-in version flag and the VERSION section of help
HideVersion bool
// categories contains the categorized commands and is populated on app startup
categories CommandCategories
// An action to execute when the shell completion flag is set
BashComplete BashCompleteFunc
// An action to execute before any subcommands are run, but after the context is ready
// If a non-nil error is returned, no subcommands are run
Before BeforeFunc
// An action to execute after any subcommands are run, but after the subcommand has finished
// It is run even if Action() panics
After AfterFunc
// The action to execute when no subcommands are specified
Action ActionFunc
// Execute this function if the proper command cannot be found
CommandNotFound CommandNotFoundFunc
// Execute this function if a usage error occurs
OnUsageError OnUsageErrorFunc
// Compilation date
Compiled time.Time
// List of all authors who contributed
Authors []*Author
// Copyright of the binary if any
Copyright string
// Reader reader to write input to (useful for tests)
Reader io.Reader
// Writer writer to write output to
Writer io.Writer
// ErrWriter writes error output
ErrWriter io.Writer
// ExitErrHandler processes any error encountered while running an App before
// it is returned to the caller. If no function is provided, HandleExitCoder
// is used as the default behavior.
ExitErrHandler ExitErrHandlerFunc
// Other custom info
Metadata map[string]interface{}
// Carries a function which returns app specific info.
ExtraInfo func() map[string]string
// CustomAppHelpTemplate the text template for app help topic.
// cli.go uses text/template to render templates. You can
// render custom help text by setting this variable.
CustomAppHelpTemplate string
// Boolean to enable short-option handling so user can combine several
// single-character bool arguments into one
// i.e. foobar -o -v -> foobar -ov
UseShortOptionHandling bool
didSetup bool
}
// Tries to find out when this binary was compiled.
// Returns the current time if it fails to find it.
func compileTime() time.Time {
info, err := os.Stat(os.Args[0])
if err != nil {
return time.Now()
}
return info.ModTime()
}
// NewApp creates a new cli Application with some reasonable defaults for Name,
// Usage, Version and Action.
func NewApp() *App {
return &App{
Name: filepath.Base(os.Args[0]),
HelpName: filepath.Base(os.Args[0]),
Usage: "A new cli application",
UsageText: "",
BashComplete: DefaultAppComplete,
Action: helpCommand.Action,
Compiled: compileTime(),
Reader: os.Stdin,
Writer: os.Stdout,
ErrWriter: os.Stderr,
}
}
// Setup runs initialization code to ensure all data structures are ready for
// `Run` or inspection prior to `Run`. It is internally called by `Run`, but
// will return early if setup has already happened.
func (a *App) Setup() {
if a.didSetup {
return
}
a.didSetup = true
if a.Name == "" {
a.Name = filepath.Base(os.Args[0])
}
if a.HelpName == "" {
a.HelpName = a.Name
}
if a.Usage == "" {
a.Usage = "A new cli application"
}
if a.Version == "" {
a.HideVersion = true
}
if a.BashComplete == nil {
a.BashComplete = DefaultAppComplete
}
if a.Action == nil {
a.Action = helpCommand.Action
}
if a.Compiled == (time.Time{}) {
a.Compiled = compileTime()
}
if a.Reader == nil {
a.Reader = os.Stdin
}
if a.Writer == nil {
a.Writer = os.Stdout
}
if a.ErrWriter == nil {
a.ErrWriter = os.Stderr
}
var newCommands []*Command
for _, c := range a.Commands {
if c.HelpName == "" {
c.HelpName = fmt.Sprintf("%s %s", a.HelpName, c.Name)
}
newCommands = append(newCommands, c)
}
a.Commands = newCommands
if a.Command(helpCommand.Name) == nil && !a.HideHelp {
if !a.HideHelpCommand {
a.appendCommand(helpCommand)
}
if HelpFlag != nil {
a.appendFlag(HelpFlag)
}
}
if !a.HideVersion {
a.appendFlag(VersionFlag)
}
a.categories = newCommandCategories()
for _, command := range a.Commands {
a.categories.AddCommand(command.Category, command)
}
sort.Sort(a.categories.(*commandCategories))
if a.Metadata == nil {
a.Metadata = make(map[string]interface{})
}
}
func (a *App) newFlagSet() (*flag.FlagSet, error) {
return flagSet(a.Name, a.Flags)
}
func (a *App) useShortOptionHandling() bool {
return a.UseShortOptionHandling
}
// Run is the entry point to the cli app. Parses the arguments slice and routes
// to the proper flag/args combination
func (a *App) Run(arguments []string) (err error) {
return a.RunContext(context.Background(), arguments)
}
// RunContext is like Run except it takes a Context that will be
// passed to its commands and sub-commands. Through this, you can
// propagate timeouts and cancellation requests
func (a *App) RunContext(ctx context.Context, arguments []string) (err error) {
a.Setup()
// handle the completion flag separately from the flagset since
// completion could be attempted after a flag, but before its value was put
// on the command line. this causes the flagset to interpret the completion
// flag name as the value of the flag before it which is undesirable
// note that we can only do this because the shell autocomplete function
// always appends the completion flag at the end of the command
shellComplete, arguments := checkShellCompleteFlag(a, arguments)
set, err := a.newFlagSet()
if err != nil {
return err
}
err = parseIter(set, a, arguments[1:], shellComplete)
nerr := normalizeFlags(a.Flags, set)
context := NewContext(a, set, &Context{Context: ctx})
if nerr != nil {
_, _ = fmt.Fprintln(a.Writer, nerr)
_ = ShowAppHelp(context)
return nerr
}
context.shellComplete = shellComplete
if checkCompletions(context) {
return nil
}
if err != nil {
if a.OnUsageError != nil {
err := a.OnUsageError(context, err, false)
a.handleExitCoder(context, err)
return err
}
_, _ = fmt.Fprintf(a.Writer, "%s %s\n\n", "Incorrect Usage.", err.Error())
_ = ShowAppHelp(context)
return err
}
if !a.HideHelp && checkHelp(context) {
_ = ShowAppHelp(context)
return nil
}
if !a.HideVersion && checkVersion(context) {
ShowVersion(context)
return nil
}
cerr := context.checkRequiredFlags(a.Flags)
if cerr != nil {
_ = ShowAppHelp(context)
return cerr
}
if a.After != nil {
defer func() {
if afterErr := a.After(context); afterErr != nil {
if err != nil {
err = newMultiError(err, afterErr)
} else {
err = afterErr
}
}
}()
}
if a.Before != nil {
beforeErr := a.Before(context)
if beforeErr != nil {
a.handleExitCoder(context, beforeErr)
err = beforeErr
return err
}
}
args := context.Args()
if args.Present() {
name := args.First()
c := a.Command(name)
if c != nil {
return c.Run(context)
}
}
if a.Action == nil {
a.Action = helpCommand.Action
}
// Run default Action
err = a.Action(context)
a.handleExitCoder(context, err)
return err
}
// RunAndExitOnError calls .Run() and exits non-zero if an error was returned
//
// Deprecated: instead you should return an error that fulfills cli.ExitCoder
// to cli.App.Run. This will cause the application to exit with the given error
// code in the cli.ExitCoder
func (a *App) RunAndExitOnError() {
if err := a.Run(os.Args); err != nil {
_, _ = fmt.Fprintln(a.ErrWriter, err)
OsExiter(1)
}
}
// RunAsSubcommand invokes the subcommand given the context, parses ctx.Args() to
// generate command-specific flags
func (a *App) RunAsSubcommand(ctx *Context) (err error) {
// Setup also handles HideHelp and HideHelpCommand
a.Setup()
var newCmds []*Command
for _, c := range a.Commands {
if c.HelpName == "" {
c.HelpName = fmt.Sprintf("%s %s", a.HelpName, c.Name)
}
newCmds = append(newCmds, c)
}
a.Commands = newCmds
set, err := a.newFlagSet()
if err != nil {
return err
}
err = parseIter(set, a, ctx.Args().Tail(), ctx.shellComplete)
nerr := normalizeFlags(a.Flags, set)
context := NewContext(a, set, ctx)
if nerr != nil {
_, _ = fmt.Fprintln(a.Writer, nerr)
_, _ = fmt.Fprintln(a.Writer)
if len(a.Commands) > 0 {
_ = ShowSubcommandHelp(context)
} else {
_ = ShowCommandHelp(ctx, context.Args().First())
}
return nerr
}
if checkCompletions(context) {
return nil
}
if err != nil {
if a.OnUsageError != nil {
err = a.OnUsageError(context, err, true)
a.handleExitCoder(context, err)
return err
}
_, _ = fmt.Fprintf(a.Writer, "%s %s\n\n", "Incorrect Usage.", err.Error())
_ = ShowSubcommandHelp(context)
return err
}
if len(a.Commands) > 0 {
if checkSubcommandHelp(context) {
return nil
}
} else {
if checkCommandHelp(ctx, context.Args().First()) {
return nil
}
}
cerr := context.checkRequiredFlags(a.Flags)
if cerr != nil {
_ = ShowSubcommandHelp(context)
return cerr
}
if a.After != nil {
defer func() {
afterErr := a.After(context)
if afterErr != nil {
a.handleExitCoder(context, err)
if err != nil {
err = newMultiError(err, afterErr)
} else {
err = afterErr
}
}
}()
}
if a.Before != nil {
beforeErr := a.Before(context)
if beforeErr != nil {
a.handleExitCoder(context, beforeErr)
err = beforeErr
return err
}
}
args := context.Args()
if args.Present() {
name := args.First()
c := a.Command(name)
if c != nil {
return c.Run(context)
}
}
// Run default Action
err = a.Action(context)
a.handleExitCoder(context, err)
return err
}
// Command returns the named command on App. Returns nil if the command does not exist
func (a *App) Command(name string) *Command {
for _, c := range a.Commands {
if c.HasName(name) {
return c
}
}
return nil
}
// VisibleCategories returns a slice of categories and commands that are
// Hidden=false
func (a *App) VisibleCategories() []CommandCategory {
ret := []CommandCategory{}
for _, category := range a.categories.Categories() {
if visible := func() CommandCategory {
if len(category.VisibleCommands()) > 0 {
return category
}
return nil
}(); visible != nil {
ret = append(ret, visible)
}
}
return ret
}
// VisibleCommands returns a slice of the Commands with Hidden=false
func (a *App) VisibleCommands() []*Command {
var ret []*Command
for _, command := range a.Commands {
if !command.Hidden {
ret = append(ret, command)
}
}
return ret
}
// VisibleFlags returns a slice of the Flags with Hidden=false
func (a *App) VisibleFlags() []Flag {
return visibleFlags(a.Flags)
}
func (a *App) appendFlag(fl Flag) {
if !hasFlag(a.Flags, fl) {
a.Flags = append(a.Flags, fl)
}
}
func (a *App) appendCommand(c *Command) {
if !hasCommand(a.Commands, c) {
a.Commands = append(a.Commands, c)
}
}
func (a *App) handleExitCoder(context *Context, err error) {
if a.ExitErrHandler != nil {
a.ExitErrHandler(context, err)
} else {
HandleExitCoder(err)
}
}
// Author represents someone who has contributed to a cli project.
type Author struct {
Name string // The Authors name
Email string // The Authors email
}
// String makes Author comply to the Stringer interface, to allow an easy print in the templating process
func (a *Author) String() string {
e := ""
if a.Email != "" {
e = " <" + a.Email + ">"
}
return fmt.Sprintf("%v%v", a.Name, e)
}
// HandleAction attempts to figure out which Action signature was used. If
// it's an ActionFunc or a func with the legacy signature for Action, the func
// is run!
func HandleAction(action interface{}, context *Context) (err error) {
switch a := action.(type) {
case ActionFunc:
return a(context)
case func(*Context) error:
return a(context)
case func(*Context): // deprecated function signature
a(context)
return nil
}
return errInvalidActionType
}

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package cli
type Args interface {
// Get returns the nth argument, or else a blank string
Get(n int) string
// First returns the first argument, or else a blank string
First() string
// Tail returns the rest of the arguments (not the first one)
// or else an empty string slice
Tail() []string
// Len returns the length of the wrapped slice
Len() int
// Present checks if there are any arguments present
Present() bool
// Slice returns a copy of the internal slice
Slice() []string
}
type args []string
func (a *args) Get(n int) string {
if len(*a) > n {
return (*a)[n]
}
return ""
}
func (a *args) First() string {
return a.Get(0)
}
func (a *args) Tail() []string {
if a.Len() >= 2 {
tail := []string((*a)[1:])
ret := make([]string, len(tail))
copy(ret, tail)
return ret
}
return []string{}
}
func (a *args) Len() int {
return len(*a)
}
func (a *args) Present() bool {
return a.Len() != 0
}
func (a *args) Slice() []string {
ret := make([]string, len(*a))
copy(ret, *a)
return ret
}

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package cli
// CommandCategories interface allows for category manipulation
type CommandCategories interface {
// AddCommand adds a command to a category, creating a new category if necessary.
AddCommand(category string, command *Command)
// categories returns a copy of the category slice
Categories() []CommandCategory
}
type commandCategories []*commandCategory
func newCommandCategories() CommandCategories {
ret := commandCategories([]*commandCategory{})
return &ret
}
func (c *commandCategories) Less(i, j int) bool {
return lexicographicLess((*c)[i].Name(), (*c)[j].Name())
}
func (c *commandCategories) Len() int {
return len(*c)
}
func (c *commandCategories) Swap(i, j int) {
(*c)[i], (*c)[j] = (*c)[j], (*c)[i]
}
func (c *commandCategories) AddCommand(category string, command *Command) {
for _, commandCategory := range []*commandCategory(*c) {
if commandCategory.name == category {
commandCategory.commands = append(commandCategory.commands, command)
return
}
}
newVal := append(*c,
&commandCategory{name: category, commands: []*Command{command}})
*c = newVal
}
func (c *commandCategories) Categories() []CommandCategory {
ret := make([]CommandCategory, len(*c))
for i, cat := range *c {
ret[i] = cat
}
return ret
}
// CommandCategory is a category containing commands.
type CommandCategory interface {
// Name returns the category name string
Name() string
// VisibleCommands returns a slice of the Commands with Hidden=false
VisibleCommands() []*Command
}
type commandCategory struct {
name string
commands []*Command
}
func (c *commandCategory) Name() string {
return c.name
}
func (c *commandCategory) VisibleCommands() []*Command {
if c.commands == nil {
c.commands = []*Command{}
}
var ret []*Command
for _, command := range c.commands {
if !command.Hidden {
ret = append(ret, command)
}
}
return ret
}

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// Package cli provides a minimal framework for creating and organizing command line
// Go applications. cli is designed to be easy to understand and write, the most simple
// cli application can be written as follows:
// func main() {
// (&cli.App{}).Run(os.Args)
// }
//
// Of course this application does not do much, so let's make this an actual application:
// func main() {
// app := &cli.App{
// Name: "greet",
// Usage: "say a greeting",
// Action: func(c *cli.Context) error {
// fmt.Println("Greetings")
// return nil
// },
// }
//
// app.Run(os.Args)
// }
package cli
//go:generate go run flag-gen/main.go flag-gen/assets_vfsdata.go

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package cli
import (
"flag"
"fmt"
"sort"
"strings"
)
// Command is a subcommand for a cli.App.
type Command struct {
// The name of the command
Name string
// A list of aliases for the command
Aliases []string
// A short description of the usage of this command
Usage string
// Custom text to show on USAGE section of help
UsageText string
// A longer explanation of how the command works
Description string
// A short description of the arguments of this command
ArgsUsage string
// The category the command is part of
Category string
// The function to call when checking for bash command completions
BashComplete BashCompleteFunc
// An action to execute before any sub-subcommands are run, but after the context is ready
// If a non-nil error is returned, no sub-subcommands are run
Before BeforeFunc
// An action to execute after any subcommands are run, but after the subcommand has finished
// It is run even if Action() panics
After AfterFunc
// The function to call when this command is invoked
Action ActionFunc
// Execute this function if a usage error occurs.
OnUsageError OnUsageErrorFunc
// List of child commands
Subcommands []*Command
// List of flags to parse
Flags []Flag
// Treat all flags as normal arguments if true
SkipFlagParsing bool
// Boolean to hide built-in help command and help flag
HideHelp bool
// Boolean to hide built-in help command but keep help flag
// Ignored if HideHelp is true.
HideHelpCommand bool
// Boolean to hide this command from help or completion
Hidden bool
// Boolean to enable short-option handling so user can combine several
// single-character bool arguments into one
// i.e. foobar -o -v -> foobar -ov
UseShortOptionHandling bool
// Full name of command for help, defaults to full command name, including parent commands.
HelpName string
commandNamePath []string
// CustomHelpTemplate the text template for the command help topic.
// cli.go uses text/template to render templates. You can
// render custom help text by setting this variable.
CustomHelpTemplate string
}
type Commands []*Command
type CommandsByName []*Command
func (c CommandsByName) Len() int {
return len(c)
}
func (c CommandsByName) Less(i, j int) bool {
return lexicographicLess(c[i].Name, c[j].Name)
}
func (c CommandsByName) Swap(i, j int) {
c[i], c[j] = c[j], c[i]
}
// FullName returns the full name of the command.
// For subcommands this ensures that parent commands are part of the command path
func (c *Command) FullName() string {
if c.commandNamePath == nil {
return c.Name
}
return strings.Join(c.commandNamePath, " ")
}
// Run invokes the command given the context, parses ctx.Args() to generate command-specific flags
func (c *Command) Run(ctx *Context) (err error) {
if len(c.Subcommands) > 0 {
return c.startApp(ctx)
}
if !c.HideHelp && HelpFlag != nil {
// append help to flags
c.appendFlag(HelpFlag)
}
if ctx.App.UseShortOptionHandling {
c.UseShortOptionHandling = true
}
set, err := c.parseFlags(ctx.Args(), ctx.shellComplete)
context := NewContext(ctx.App, set, ctx)
context.Command = c
if checkCommandCompletions(context, c.Name) {
return nil
}
if err != nil {
if c.OnUsageError != nil {
err = c.OnUsageError(context, err, false)
context.App.handleExitCoder(context, err)
return err
}
_, _ = fmt.Fprintln(context.App.Writer, "Incorrect Usage:", err.Error())
_, _ = fmt.Fprintln(context.App.Writer)
_ = ShowCommandHelp(context, c.Name)
return err
}
if checkCommandHelp(context, c.Name) {
return nil
}
cerr := context.checkRequiredFlags(c.Flags)
if cerr != nil {
_ = ShowCommandHelp(context, c.Name)
return cerr
}
if c.After != nil {
defer func() {
afterErr := c.After(context)
if afterErr != nil {
context.App.handleExitCoder(context, err)
if err != nil {
err = newMultiError(err, afterErr)
} else {
err = afterErr
}
}
}()
}
if c.Before != nil {
err = c.Before(context)
if err != nil {
context.App.handleExitCoder(context, err)
return err
}
}
if c.Action == nil {
c.Action = helpSubcommand.Action
}
context.Command = c
err = c.Action(context)
if err != nil {
context.App.handleExitCoder(context, err)
}
return err
}
func (c *Command) newFlagSet() (*flag.FlagSet, error) {
return flagSet(c.Name, c.Flags)
}
func (c *Command) useShortOptionHandling() bool {
return c.UseShortOptionHandling
}
func (c *Command) parseFlags(args Args, shellComplete bool) (*flag.FlagSet, error) {
set, err := c.newFlagSet()
if err != nil {
return nil, err
}
if c.SkipFlagParsing {
return set, set.Parse(append([]string{"--"}, args.Tail()...))
}
err = parseIter(set, c, args.Tail(), shellComplete)
if err != nil {
return nil, err
}
err = normalizeFlags(c.Flags, set)
if err != nil {
return nil, err
}
return set, nil
}
// Names returns the names including short names and aliases.
func (c *Command) Names() []string {
return append([]string{c.Name}, c.Aliases...)
}
// HasName returns true if Command.Name matches given name
func (c *Command) HasName(name string) bool {
for _, n := range c.Names() {
if n == name {
return true
}
}
return false
}
func (c *Command) startApp(ctx *Context) error {
app := &App{
Metadata: ctx.App.Metadata,
Name: fmt.Sprintf("%s %s", ctx.App.Name, c.Name),
}
if c.HelpName == "" {
app.HelpName = c.HelpName
} else {
app.HelpName = app.Name
}
app.Usage = c.Usage
app.UsageText = c.UsageText
app.Description = c.Description
app.ArgsUsage = c.ArgsUsage
// set CommandNotFound
app.CommandNotFound = ctx.App.CommandNotFound
app.CustomAppHelpTemplate = c.CustomHelpTemplate
// set the flags and commands
app.Commands = c.Subcommands
app.Flags = c.Flags
app.HideHelp = c.HideHelp
app.HideHelpCommand = c.HideHelpCommand
app.Version = ctx.App.Version
app.HideVersion = true
app.Compiled = ctx.App.Compiled
app.Reader = ctx.App.Reader
app.Writer = ctx.App.Writer
app.ErrWriter = ctx.App.ErrWriter
app.ExitErrHandler = ctx.App.ExitErrHandler
app.UseShortOptionHandling = ctx.App.UseShortOptionHandling
app.categories = newCommandCategories()
for _, command := range c.Subcommands {
app.categories.AddCommand(command.Category, command)
}
sort.Sort(app.categories.(*commandCategories))
// bash completion
app.EnableBashCompletion = ctx.App.EnableBashCompletion
if c.BashComplete != nil {
app.BashComplete = c.BashComplete
}
// set the actions
app.Before = c.Before
app.After = c.After
if c.Action != nil {
app.Action = c.Action
} else {
app.Action = helpSubcommand.Action
}
app.OnUsageError = c.OnUsageError
for index, cc := range app.Commands {
app.Commands[index].commandNamePath = []string{c.Name, cc.Name}
}
return app.RunAsSubcommand(ctx)
}
// VisibleFlags returns a slice of the Flags with Hidden=false
func (c *Command) VisibleFlags() []Flag {
return visibleFlags(c.Flags)
}
func (c *Command) appendFlag(fl Flag) {
if !hasFlag(c.Flags, fl) {
c.Flags = append(c.Flags, fl)
}
}
func hasCommand(commands []*Command, command *Command) bool {
for _, existing := range commands {
if command == existing {
return true
}
}
return false
}

211
vendor/github.com/urfave/cli/v2/context.go generated vendored Normal file
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package cli
import (
"context"
"flag"
"strings"
)
// Context is a type that is passed through to
// each Handler action in a cli application. Context
// can be used to retrieve context-specific args and
// parsed command-line options.
type Context struct {
context.Context
App *App
Command *Command
shellComplete bool
flagSet *flag.FlagSet
parentContext *Context
}
// NewContext creates a new context. For use in when invoking an App or Command action.
func NewContext(app *App, set *flag.FlagSet, parentCtx *Context) *Context {
c := &Context{App: app, flagSet: set, parentContext: parentCtx}
if parentCtx != nil {
c.Context = parentCtx.Context
c.shellComplete = parentCtx.shellComplete
if parentCtx.flagSet == nil {
parentCtx.flagSet = &flag.FlagSet{}
}
}
c.Command = &Command{}
if c.Context == nil {
c.Context = context.Background()
}
return c
}
// NumFlags returns the number of flags set
func (c *Context) NumFlags() int {
return c.flagSet.NFlag()
}
// Set sets a context flag to a value.
func (c *Context) Set(name, value string) error {
return c.flagSet.Set(name, value)
}
// IsSet determines if the flag was actually set
func (c *Context) IsSet(name string) bool {
if fs := c.lookupFlagSet(name); fs != nil {
isSet := false
fs.Visit(func(f *flag.Flag) {
if f.Name == name {
isSet = true
}
})
if isSet {
return true
}
f := c.lookupFlag(name)
if f == nil {
return false
}
return f.IsSet()
}
return false
}
// LocalFlagNames returns a slice of flag names used in this context.
func (c *Context) LocalFlagNames() []string {
var names []string
c.flagSet.Visit(makeFlagNameVisitor(&names))
return names
}
// FlagNames returns a slice of flag names used by the this context and all of
// its parent contexts.
func (c *Context) FlagNames() []string {
var names []string
for _, ctx := range c.Lineage() {
ctx.flagSet.Visit(makeFlagNameVisitor(&names))
}
return names
}
// Lineage returns *this* context and all of its ancestor contexts in order from
// child to parent
func (c *Context) Lineage() []*Context {
var lineage []*Context
for cur := c; cur != nil; cur = cur.parentContext {
lineage = append(lineage, cur)
}
return lineage
}
// Value returns the value of the flag corresponding to `name`
func (c *Context) Value(name string) interface{} {
if fs := c.lookupFlagSet(name); fs != nil {
return fs.Lookup(name).Value.(flag.Getter).Get()
}
return nil
}
// Args returns the command line arguments associated with the context.
func (c *Context) Args() Args {
ret := args(c.flagSet.Args())
return &ret
}
// NArg returns the number of the command line arguments.
func (c *Context) NArg() int {
return c.Args().Len()
}
func (ctx *Context) lookupFlag(name string) Flag {
for _, c := range ctx.Lineage() {
if c.Command == nil {
continue
}
for _, f := range c.Command.Flags {
for _, n := range f.Names() {
if n == name {
return f
}
}
}
}
if ctx.App != nil {
for _, f := range ctx.App.Flags {
for _, n := range f.Names() {
if n == name {
return f
}
}
}
}
return nil
}
func (ctx *Context) lookupFlagSet(name string) *flag.FlagSet {
for _, c := range ctx.Lineage() {
if c.flagSet == nil {
continue
}
if f := c.flagSet.Lookup(name); f != nil {
return c.flagSet
}
}
return nil
}
func (context *Context) checkRequiredFlags(flags []Flag) requiredFlagsErr {
var missingFlags []string
for _, f := range flags {
if rf, ok := f.(RequiredFlag); ok && rf.IsRequired() {
var flagPresent bool
var flagName string
for _, key := range f.Names() {
if len(key) > 1 {
flagName = key
}
if context.IsSet(strings.TrimSpace(key)) {
flagPresent = true
}
}
if !flagPresent && flagName != "" {
missingFlags = append(missingFlags, flagName)
}
}
}
if len(missingFlags) != 0 {
return &errRequiredFlags{missingFlags: missingFlags}
}
return nil
}
func makeFlagNameVisitor(names *[]string) func(*flag.Flag) {
return func(f *flag.Flag) {
nameParts := strings.Split(f.Name, ",")
name := strings.TrimSpace(nameParts[0])
for _, part := range nameParts {
part = strings.TrimSpace(part)
if len(part) > len(name) {
name = part
}
}
if name != "" {
*names = append(*names, name)
}
}
}

195
vendor/github.com/urfave/cli/v2/docs.go generated vendored Normal file
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package cli
import (
"bytes"
"fmt"
"io"
"sort"
"strings"
"text/template"
"github.com/cpuguy83/go-md2man/v2/md2man"
)
// ToMarkdown creates a markdown string for the `*App`
// The function errors if either parsing or writing of the string fails.
func (a *App) ToMarkdown() (string, error) {
var w bytes.Buffer
if err := a.writeDocTemplate(&w, 0); err != nil {
return "", err
}
return w.String(), nil
}
// ToMan creates a man page string with section number for the `*App`
// The function errors if either parsing or writing of the string fails.
func (a *App) ToManWithSection(sectionNumber int) (string, error) {
var w bytes.Buffer
if err := a.writeDocTemplate(&w, sectionNumber); err != nil {
return "", err
}
man := md2man.Render(w.Bytes())
return string(man), nil
}
// ToMan creates a man page string for the `*App`
// The function errors if either parsing or writing of the string fails.
func (a *App) ToMan() (string, error) {
man, err := a.ToManWithSection(8)
return man, err
}
type cliTemplate struct {
App *App
SectionNum int
Commands []string
GlobalArgs []string
SynopsisArgs []string
}
func (a *App) writeDocTemplate(w io.Writer, sectionNum int) error {
const name = "cli"
t, err := template.New(name).Parse(MarkdownDocTemplate)
if err != nil {
return err
}
return t.ExecuteTemplate(w, name, &cliTemplate{
App: a,
SectionNum: sectionNum,
Commands: prepareCommands(a.Commands, 0),
GlobalArgs: prepareArgsWithValues(a.VisibleFlags()),
SynopsisArgs: prepareArgsSynopsis(a.VisibleFlags()),
})
}
func prepareCommands(commands []*Command, level int) []string {
var coms []string
for _, command := range commands {
if command.Hidden {
continue
}
usageText := prepareUsageText(command)
usage := prepareUsage(command, usageText)
prepared := fmt.Sprintf("%s %s\n\n%s%s",
strings.Repeat("#", level+2),
strings.Join(command.Names(), ", "),
usage,
usageText,
)
flags := prepareArgsWithValues(command.Flags)
if len(flags) > 0 {
prepared += fmt.Sprintf("\n%s", strings.Join(flags, "\n"))
}
coms = append(coms, prepared)
// recursevly iterate subcommands
if len(command.Subcommands) > 0 {
coms = append(
coms,
prepareCommands(command.Subcommands, level+1)...,
)
}
}
return coms
}
func prepareArgsWithValues(flags []Flag) []string {
return prepareFlags(flags, ", ", "**", "**", `""`, true)
}
func prepareArgsSynopsis(flags []Flag) []string {
return prepareFlags(flags, "|", "[", "]", "[value]", false)
}
func prepareFlags(
flags []Flag,
sep, opener, closer, value string,
addDetails bool,
) []string {
args := []string{}
for _, f := range flags {
flag, ok := f.(DocGenerationFlag)
if !ok {
continue
}
modifiedArg := opener
for _, s := range flag.Names() {
trimmed := strings.TrimSpace(s)
if len(modifiedArg) > len(opener) {
modifiedArg += sep
}
if len(trimmed) > 1 {
modifiedArg += fmt.Sprintf("--%s", trimmed)
} else {
modifiedArg += fmt.Sprintf("-%s", trimmed)
}
}
modifiedArg += closer
if flag.TakesValue() {
modifiedArg += fmt.Sprintf("=%s", value)
}
if addDetails {
modifiedArg += flagDetails(flag)
}
args = append(args, modifiedArg+"\n")
}
sort.Strings(args)
return args
}
// flagDetails returns a string containing the flags metadata
func flagDetails(flag DocGenerationFlag) string {
description := flag.GetUsage()
value := flag.GetValue()
if value != "" {
description += " (default: " + value + ")"
}
return ": " + description
}
func prepareUsageText(command *Command) string {
if command.UsageText == "" {
return ""
}
// Remove leading and trailing newlines
preparedUsageText := strings.Trim(command.UsageText, "\n")
var usageText string
if strings.Contains(preparedUsageText, "\n") {
// Format multi-line string as a code block using the 4 space schema to allow for embedded markdown such
// that it will not break the continuous code block.
for _, ln := range strings.Split(preparedUsageText, "\n") {
usageText += fmt.Sprintf(" %s\n", ln)
}
} else {
// Style a single line as a note
usageText = fmt.Sprintf(">%s\n", preparedUsageText)
}
return usageText
}
func prepareUsage(command *Command, usageText string) string {
if command.Usage == "" {
return ""
}
usage := command.Usage + "\n"
// Add a newline to the Usage IFF there is a UsageText
if usageText != "" {
usage += "\n"
}
return usage
}

163
vendor/github.com/urfave/cli/v2/errors.go generated vendored Normal file
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package cli
import (
"fmt"
"io"
"os"
"strings"
)
// OsExiter is the function used when the app exits. If not set defaults to os.Exit.
var OsExiter = os.Exit
// ErrWriter is used to write errors to the user. This can be anything
// implementing the io.Writer interface and defaults to os.Stderr.
var ErrWriter io.Writer = os.Stderr
// MultiError is an error that wraps multiple errors.
type MultiError interface {
error
Errors() []error
}
// newMultiError creates a new MultiError. Pass in one or more errors.
func newMultiError(err ...error) MultiError {
ret := multiError(err)
return &ret
}
type multiError []error
// Error implements the error interface.
func (m *multiError) Error() string {
errs := make([]string, len(*m))
for i, err := range *m {
errs[i] = err.Error()
}
return strings.Join(errs, "\n")
}
// Errors returns a copy of the errors slice
func (m *multiError) Errors() []error {
errs := make([]error, len(*m))
for _, err := range *m {
errs = append(errs, err)
}
return errs
}
type requiredFlagsErr interface {
error
getMissingFlags() []string
}
type errRequiredFlags struct {
missingFlags []string
}
func (e *errRequiredFlags) Error() string {
numberOfMissingFlags := len(e.missingFlags)
if numberOfMissingFlags == 1 {
return fmt.Sprintf("Required flag %q not set", e.missingFlags[0])
}
joinedMissingFlags := strings.Join(e.missingFlags, ", ")
return fmt.Sprintf("Required flags %q not set", joinedMissingFlags)
}
func (e *errRequiredFlags) getMissingFlags() []string {
return e.missingFlags
}
// ErrorFormatter is the interface that will suitably format the error output
type ErrorFormatter interface {
Format(s fmt.State, verb rune)
}
// ExitCoder is the interface checked by `App` and `Command` for a custom exit
// code
type ExitCoder interface {
error
ExitCode() int
}
type exitError struct {
exitCode int
message interface{}
}
// NewExitError calls Exit to create a new ExitCoder.
//
// Deprecated: This function is a duplicate of Exit and will eventually be removed.
func NewExitError(message interface{}, exitCode int) ExitCoder {
return Exit(message, exitCode)
}
// Exit wraps a message and exit code into an error, which by default is
// handled with a call to os.Exit during default error handling.
//
// This is the simplest way to trigger a non-zero exit code for an App without
// having to call os.Exit manually. During testing, this behavior can be avoided
// by overiding the ExitErrHandler function on an App or the package-global
// OsExiter function.
func Exit(message interface{}, exitCode int) ExitCoder {
return &exitError{
message: message,
exitCode: exitCode,
}
}
func (ee *exitError) Error() string {
return fmt.Sprintf("%v", ee.message)
}
func (ee *exitError) ExitCode() int {
return ee.exitCode
}
// HandleExitCoder handles errors implementing ExitCoder by printing their
// message and calling OsExiter with the given exit code.
//
// If the given error instead implements MultiError, each error will be checked
// for the ExitCoder interface, and OsExiter will be called with the last exit
// code found, or exit code 1 if no ExitCoder is found.
//
// This function is the default error-handling behavior for an App.
func HandleExitCoder(err error) {
if err == nil {
return
}
if exitErr, ok := err.(ExitCoder); ok {
if err.Error() != "" {
if _, ok := exitErr.(ErrorFormatter); ok {
_, _ = fmt.Fprintf(ErrWriter, "%+v\n", err)
} else {
_, _ = fmt.Fprintln(ErrWriter, err)
}
}
OsExiter(exitErr.ExitCode())
return
}
if multiErr, ok := err.(MultiError); ok {
code := handleMultiError(multiErr)
OsExiter(code)
return
}
}
func handleMultiError(multiErr MultiError) int {
code := 1
for _, merr := range multiErr.Errors() {
if multiErr2, ok := merr.(MultiError); ok {
code = handleMultiError(multiErr2)
} else if merr != nil {
fmt.Fprintln(ErrWriter, merr)
if exitErr, ok := merr.(ExitCoder); ok {
code = exitErr.ExitCode()
}
}
}
return code
}

196
vendor/github.com/urfave/cli/v2/fish.go generated vendored Normal file
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@ -0,0 +1,196 @@
package cli
import (
"bytes"
"fmt"
"io"
"strings"
"text/template"
)
// ToFishCompletion creates a fish completion string for the `*App`
// The function errors if either parsing or writing of the string fails.
func (a *App) ToFishCompletion() (string, error) {
var w bytes.Buffer
if err := a.writeFishCompletionTemplate(&w); err != nil {
return "", err
}
return w.String(), nil
}
type fishCompletionTemplate struct {
App *App
Completions []string
AllCommands []string
}
func (a *App) writeFishCompletionTemplate(w io.Writer) error {
const name = "cli"
t, err := template.New(name).Parse(FishCompletionTemplate)
if err != nil {
return err
}
allCommands := []string{}
// Add global flags
completions := a.prepareFishFlags(a.VisibleFlags(), allCommands)
// Add help flag
if !a.HideHelp {
completions = append(
completions,
a.prepareFishFlags([]Flag{HelpFlag}, allCommands)...,
)
}
// Add version flag
if !a.HideVersion {
completions = append(
completions,
a.prepareFishFlags([]Flag{VersionFlag}, allCommands)...,
)
}
// Add commands and their flags
completions = append(
completions,
a.prepareFishCommands(a.VisibleCommands(), &allCommands, []string{})...,
)
return t.ExecuteTemplate(w, name, &fishCompletionTemplate{
App: a,
Completions: completions,
AllCommands: allCommands,
})
}
func (a *App) prepareFishCommands(commands []*Command, allCommands *[]string, previousCommands []string) []string {
completions := []string{}
for _, command := range commands {
if command.Hidden {
continue
}
var completion strings.Builder
completion.WriteString(fmt.Sprintf(
"complete -r -c %s -n '%s' -a '%s'",
a.Name,
a.fishSubcommandHelper(previousCommands),
strings.Join(command.Names(), " "),
))
if command.Usage != "" {
completion.WriteString(fmt.Sprintf(" -d '%s'",
escapeSingleQuotes(command.Usage)))
}
if !command.HideHelp {
completions = append(
completions,
a.prepareFishFlags([]Flag{HelpFlag}, command.Names())...,
)
}
*allCommands = append(*allCommands, command.Names()...)
completions = append(completions, completion.String())
completions = append(
completions,
a.prepareFishFlags(command.Flags, command.Names())...,
)
// recursevly iterate subcommands
if len(command.Subcommands) > 0 {
completions = append(
completions,
a.prepareFishCommands(
command.Subcommands, allCommands, command.Names(),
)...,
)
}
}
return completions
}
func (a *App) prepareFishFlags(flags []Flag, previousCommands []string) []string {
completions := []string{}
for _, f := range flags {
flag, ok := f.(DocGenerationFlag)
if !ok {
continue
}
completion := &strings.Builder{}
completion.WriteString(fmt.Sprintf(
"complete -c %s -n '%s'",
a.Name,
a.fishSubcommandHelper(previousCommands),
))
fishAddFileFlag(f, completion)
for idx, opt := range flag.Names() {
if idx == 0 {
completion.WriteString(fmt.Sprintf(
" -l %s", strings.TrimSpace(opt),
))
} else {
completion.WriteString(fmt.Sprintf(
" -s %s", strings.TrimSpace(opt),
))
}
}
if flag.TakesValue() {
completion.WriteString(" -r")
}
if flag.GetUsage() != "" {
completion.WriteString(fmt.Sprintf(" -d '%s'",
escapeSingleQuotes(flag.GetUsage())))
}
completions = append(completions, completion.String())
}
return completions
}
func fishAddFileFlag(flag Flag, completion *strings.Builder) {
switch f := flag.(type) {
case *GenericFlag:
if f.TakesFile {
return
}
case *StringFlag:
if f.TakesFile {
return
}
case *StringSliceFlag:
if f.TakesFile {
return
}
case *PathFlag:
if f.TakesFile {
return
}
}
completion.WriteString(" -f")
}
func (a *App) fishSubcommandHelper(allCommands []string) string {
fishHelper := fmt.Sprintf("__fish_%s_no_subcommand", a.Name)
if len(allCommands) > 0 {
fishHelper = fmt.Sprintf(
"__fish_seen_subcommand_from %s",
strings.Join(allCommands, " "),
)
}
return fishHelper
}
func escapeSingleQuotes(input string) string {
return strings.Replace(input, `'`, `\'`, -1)
}

444
vendor/github.com/urfave/cli/v2/flag.go generated vendored Normal file
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@ -0,0 +1,444 @@
package cli
import (
"errors"
"flag"
"fmt"
"io/ioutil"
"reflect"
"regexp"
"runtime"
"strconv"
"strings"
"syscall"
"time"
)
const defaultPlaceholder = "value"
var (
slPfx = fmt.Sprintf("sl:::%d:::", time.Now().UTC().UnixNano())
commaWhitespace = regexp.MustCompile("[, ]+.*")
)
// BashCompletionFlag enables bash-completion for all commands and subcommands
var BashCompletionFlag Flag = &BoolFlag{
Name: "generate-bash-completion",
Hidden: true,
}
// VersionFlag prints the version for the application
var VersionFlag Flag = &BoolFlag{
Name: "version",
Aliases: []string{"v"},
Usage: "print the version",
}
// HelpFlag prints the help for all commands and subcommands.
// Set to nil to disable the flag. The subcommand
// will still be added unless HideHelp or HideHelpCommand is set to true.
var HelpFlag Flag = &BoolFlag{
Name: "help",
Aliases: []string{"h"},
Usage: "show help",
}
// FlagStringer converts a flag definition to a string. This is used by help
// to display a flag.
var FlagStringer FlagStringFunc = stringifyFlag
// Serializer is used to circumvent the limitations of flag.FlagSet.Set
type Serializer interface {
Serialize() string
}
// FlagNamePrefixer converts a full flag name and its placeholder into the help
// message flag prefix. This is used by the default FlagStringer.
var FlagNamePrefixer FlagNamePrefixFunc = prefixedNames
// FlagEnvHinter annotates flag help message with the environment variable
// details. This is used by the default FlagStringer.
var FlagEnvHinter FlagEnvHintFunc = withEnvHint
// FlagFileHinter annotates flag help message with the environment variable
// details. This is used by the default FlagStringer.
var FlagFileHinter FlagFileHintFunc = withFileHint
// FlagsByName is a slice of Flag.
type FlagsByName []Flag
func (f FlagsByName) Len() int {
return len(f)
}
func (f FlagsByName) Less(i, j int) bool {
if len(f[j].Names()) == 0 {
return false
} else if len(f[i].Names()) == 0 {
return true
}
return lexicographicLess(f[i].Names()[0], f[j].Names()[0])
}
func (f FlagsByName) Swap(i, j int) {
f[i], f[j] = f[j], f[i]
}
// Flag is a common interface related to parsing flags in cli.
// For more advanced flag parsing techniques, it is recommended that
// this interface be implemented.
type Flag interface {
fmt.Stringer
// Apply Flag settings to the given flag set
Apply(*flag.FlagSet) error
Names() []string
IsSet() bool
}
// RequiredFlag is an interface that allows us to mark flags as required
// it allows flags required flags to be backwards compatible with the Flag interface
type RequiredFlag interface {
Flag
IsRequired() bool
}
// DocGenerationFlag is an interface that allows documentation generation for the flag
type DocGenerationFlag interface {
Flag
// TakesValue returns true if the flag takes a value, otherwise false
TakesValue() bool
// GetUsage returns the usage string for the flag
GetUsage() string
// GetValue returns the flags value as string representation and an empty
// string if the flag takes no value at all.
GetValue() string
}
// VisibleFlag is an interface that allows to check if a flag is visible
type VisibleFlag interface {
Flag
// IsVisible returns true if the flag is not hidden, otherwise false
IsVisible() bool
}
func flagSet(name string, flags []Flag) (*flag.FlagSet, error) {
set := flag.NewFlagSet(name, flag.ContinueOnError)
for _, f := range flags {
if err := f.Apply(set); err != nil {
return nil, err
}
}
set.SetOutput(ioutil.Discard)
return set, nil
}
func copyFlag(name string, ff *flag.Flag, set *flag.FlagSet) {
switch ff.Value.(type) {
case Serializer:
_ = set.Set(name, ff.Value.(Serializer).Serialize())
default:
_ = set.Set(name, ff.Value.String())
}
}
func normalizeFlags(flags []Flag, set *flag.FlagSet) error {
visited := make(map[string]bool)
set.Visit(func(f *flag.Flag) {
visited[f.Name] = true
})
for _, f := range flags {
parts := f.Names()
if len(parts) == 1 {
continue
}
var ff *flag.Flag
for _, name := range parts {
name = strings.Trim(name, " ")
if visited[name] {
if ff != nil {
return errors.New("Cannot use two forms of the same flag: " + name + " " + ff.Name)
}
ff = set.Lookup(name)
}
}
if ff == nil {
continue
}
for _, name := range parts {
name = strings.Trim(name, " ")
if !visited[name] {
copyFlag(name, ff, set)
}
}
}
return nil
}
func visibleFlags(fl []Flag) []Flag {
var visible []Flag
for _, f := range fl {
if vf, ok := f.(VisibleFlag); ok && vf.IsVisible() {
visible = append(visible, f)
}
}
return visible
}
func prefixFor(name string) (prefix string) {
if len(name) == 1 {
prefix = "-"
} else {
prefix = "--"
}
return
}
// Returns the placeholder, if any, and the unquoted usage string.
func unquoteUsage(usage string) (string, string) {
for i := 0; i < len(usage); i++ {
if usage[i] == '`' {
for j := i + 1; j < len(usage); j++ {
if usage[j] == '`' {
name := usage[i+1 : j]
usage = usage[:i] + name + usage[j+1:]
return name, usage
}
}
break
}
}
return "", usage
}
func prefixedNames(names []string, placeholder string) string {
var prefixed string
for i, name := range names {
if name == "" {
continue
}
prefixed += prefixFor(name) + name
if placeholder != "" {
prefixed += " " + placeholder
}
if i < len(names)-1 {
prefixed += ", "
}
}
return prefixed
}
func withEnvHint(envVars []string, str string) string {
envText := ""
if envVars != nil && len(envVars) > 0 {
prefix := "$"
suffix := ""
sep := ", $"
if runtime.GOOS == "windows" {
prefix = "%"
suffix = "%"
sep = "%, %"
}
envText = fmt.Sprintf(" [%s%s%s]", prefix, strings.Join(envVars, sep), suffix)
}
return str + envText
}
func flagNames(name string, aliases []string) []string {
var ret []string
for _, part := range append([]string{name}, aliases...) {
// v1 -> v2 migration warning zone:
// Strip off anything after the first found comma or space, which
// *hopefully* makes it a tiny bit more obvious that unexpected behavior is
// caused by using the v1 form of stringly typed "Name".
ret = append(ret, commaWhitespace.ReplaceAllString(part, ""))
}
return ret
}
func flagStringSliceField(f Flag, name string) []string {
fv := flagValue(f)
field := fv.FieldByName(name)
if field.IsValid() {
return field.Interface().([]string)
}
return []string{}
}
func withFileHint(filePath, str string) string {
fileText := ""
if filePath != "" {
fileText = fmt.Sprintf(" [%s]", filePath)
}
return str + fileText
}
func flagValue(f Flag) reflect.Value {
fv := reflect.ValueOf(f)
for fv.Kind() == reflect.Ptr {
fv = reflect.Indirect(fv)
}
return fv
}
func formatDefault(format string) string {
return " (default: " + format + ")"
}
func stringifyFlag(f Flag) string {
fv := flagValue(f)
switch f := f.(type) {
case *IntSliceFlag:
return withEnvHint(flagStringSliceField(f, "EnvVars"),
stringifyIntSliceFlag(f))
case *Int64SliceFlag:
return withEnvHint(flagStringSliceField(f, "EnvVars"),
stringifyInt64SliceFlag(f))
case *Float64SliceFlag:
return withEnvHint(flagStringSliceField(f, "EnvVars"),
stringifyFloat64SliceFlag(f))
case *StringSliceFlag:
return withEnvHint(flagStringSliceField(f, "EnvVars"),
stringifyStringSliceFlag(f))
}
placeholder, usage := unquoteUsage(fv.FieldByName("Usage").String())
needsPlaceholder := false
defaultValueString := ""
val := fv.FieldByName("Value")
if val.IsValid() {
needsPlaceholder = val.Kind() != reflect.Bool
defaultValueString = fmt.Sprintf(formatDefault("%v"), val.Interface())
if val.Kind() == reflect.String && val.String() != "" {
defaultValueString = fmt.Sprintf(formatDefault("%q"), val.String())
}
}
helpText := fv.FieldByName("DefaultText")
if helpText.IsValid() && helpText.String() != "" {
needsPlaceholder = val.Kind() != reflect.Bool
defaultValueString = fmt.Sprintf(formatDefault("%s"), helpText.String())
}
if defaultValueString == formatDefault("") {
defaultValueString = ""
}
if needsPlaceholder && placeholder == "" {
placeholder = defaultPlaceholder
}
usageWithDefault := strings.TrimSpace(usage + defaultValueString)
return withEnvHint(flagStringSliceField(f, "EnvVars"),
fmt.Sprintf("%s\t%s", prefixedNames(f.Names(), placeholder), usageWithDefault))
}
func stringifyIntSliceFlag(f *IntSliceFlag) string {
var defaultVals []string
if f.Value != nil && len(f.Value.Value()) > 0 {
for _, i := range f.Value.Value() {
defaultVals = append(defaultVals, strconv.Itoa(i))
}
}
return stringifySliceFlag(f.Usage, f.Names(), defaultVals)
}
func stringifyInt64SliceFlag(f *Int64SliceFlag) string {
var defaultVals []string
if f.Value != nil && len(f.Value.Value()) > 0 {
for _, i := range f.Value.Value() {
defaultVals = append(defaultVals, strconv.FormatInt(i, 10))
}
}
return stringifySliceFlag(f.Usage, f.Names(), defaultVals)
}
func stringifyFloat64SliceFlag(f *Float64SliceFlag) string {
var defaultVals []string
if f.Value != nil && len(f.Value.Value()) > 0 {
for _, i := range f.Value.Value() {
defaultVals = append(defaultVals, strings.TrimRight(strings.TrimRight(fmt.Sprintf("%f", i), "0"), "."))
}
}
return stringifySliceFlag(f.Usage, f.Names(), defaultVals)
}
func stringifyStringSliceFlag(f *StringSliceFlag) string {
var defaultVals []string
if f.Value != nil && len(f.Value.Value()) > 0 {
for _, s := range f.Value.Value() {
if len(s) > 0 {
defaultVals = append(defaultVals, strconv.Quote(s))
}
}
}
return stringifySliceFlag(f.Usage, f.Names(), defaultVals)
}
func stringifySliceFlag(usage string, names, defaultVals []string) string {
placeholder, usage := unquoteUsage(usage)
if placeholder == "" {
placeholder = defaultPlaceholder
}
defaultVal := ""
if len(defaultVals) > 0 {
defaultVal = fmt.Sprintf(formatDefault("%s"), strings.Join(defaultVals, ", "))
}
usageWithDefault := strings.TrimSpace(fmt.Sprintf("%s%s", usage, defaultVal))
multiInputString := "(accepts multiple inputs)"
if usageWithDefault != "" {
multiInputString = "\t" + multiInputString
}
return fmt.Sprintf("%s\t%s%s", prefixedNames(names, placeholder), usageWithDefault, multiInputString)
}
func hasFlag(flags []Flag, fl Flag) bool {
for _, existing := range flags {
if fl == existing {
return true
}
}
return false
}
func flagFromEnvOrFile(envVars []string, filePath string) (val string, ok bool) {
for _, envVar := range envVars {
envVar = strings.TrimSpace(envVar)
if val, ok := syscall.Getenv(envVar); ok {
return val, true
}
}
for _, fileVar := range strings.Split(filePath, ",") {
if fileVar != "" {
if data, err := ioutil.ReadFile(fileVar); err == nil {
return string(data), true
}
}
}
return "", false
}

111
vendor/github.com/urfave/cli/v2/flag_bool.go generated vendored Normal file
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package cli
import (
"flag"
"fmt"
"strconv"
)
// BoolFlag is a flag with type bool
type BoolFlag struct {
Name string
Aliases []string
Usage string
EnvVars []string
FilePath string
Required bool
Hidden bool
Value bool
DefaultText string
Destination *bool
HasBeenSet bool
}
// IsSet returns whether or not the flag has been set through env or file
func (f *BoolFlag) IsSet() bool {
return f.HasBeenSet
}
// String returns a readable representation of this value
// (for usage defaults)
func (f *BoolFlag) String() string {
return FlagStringer(f)
}
// Names returns the names of the flag
func (f *BoolFlag) Names() []string {
return flagNames(f.Name, f.Aliases)
}
// IsRequired returns whether or not the flag is required
func (f *BoolFlag) IsRequired() bool {
return f.Required
}
// TakesValue returns true of the flag takes a value, otherwise false
func (f *BoolFlag) TakesValue() bool {
return false
}
// GetUsage returns the usage string for the flag
func (f *BoolFlag) GetUsage() string {
return f.Usage
}
// GetValue returns the flags value as string representation and an empty
// string if the flag takes no value at all.
func (f *BoolFlag) GetValue() string {
return ""
}
// IsVisible returns true if the flag is not hidden, otherwise false
func (f *BoolFlag) IsVisible() bool {
return !f.Hidden
}
// Apply populates the flag given the flag set and environment
func (f *BoolFlag) Apply(set *flag.FlagSet) error {
if val, ok := flagFromEnvOrFile(f.EnvVars, f.FilePath); ok {
if val != "" {
valBool, err := strconv.ParseBool(val)
if err != nil {
return fmt.Errorf("could not parse %q as bool value for flag %s: %s", val, f.Name, err)
}
f.Value = valBool
f.HasBeenSet = true
}
}
for _, name := range f.Names() {
if f.Destination != nil {
set.BoolVar(f.Destination, name, f.Value, f.Usage)
continue
}
set.Bool(name, f.Value, f.Usage)
}
return nil
}
// Bool looks up the value of a local BoolFlag, returns
// false if not found
func (c *Context) Bool(name string) bool {
if fs := c.lookupFlagSet(name); fs != nil {
return lookupBool(name, fs)
}
return false
}
func lookupBool(name string, set *flag.FlagSet) bool {
f := set.Lookup(name)
if f != nil {
parsed, err := strconv.ParseBool(f.Value.String())
if err != nil {
return false
}
return parsed
}
return false
}

110
vendor/github.com/urfave/cli/v2/flag_duration.go generated vendored Normal file
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package cli
import (
"flag"
"fmt"
"time"
)
// DurationFlag is a flag with type time.Duration (see https://golang.org/pkg/time/#ParseDuration)
type DurationFlag struct {
Name string
Aliases []string
Usage string
EnvVars []string
FilePath string
Required bool
Hidden bool
Value time.Duration
DefaultText string
Destination *time.Duration
HasBeenSet bool
}
// IsSet returns whether or not the flag has been set through env or file
func (f *DurationFlag) IsSet() bool {
return f.HasBeenSet
}
// String returns a readable representation of this value
// (for usage defaults)
func (f *DurationFlag) String() string {
return FlagStringer(f)
}
// Names returns the names of the flag
func (f *DurationFlag) Names() []string {
return flagNames(f.Name, f.Aliases)
}
// IsRequired returns whether or not the flag is required
func (f *DurationFlag) IsRequired() bool {
return f.Required
}
// TakesValue returns true of the flag takes a value, otherwise false
func (f *DurationFlag) TakesValue() bool {
return true
}
// GetUsage returns the usage string for the flag
func (f *DurationFlag) GetUsage() string {
return f.Usage
}
// GetValue returns the flags value as string representation and an empty
// string if the flag takes no value at all.
func (f *DurationFlag) GetValue() string {
return f.Value.String()
}
// IsVisible returns true if the flag is not hidden, otherwise false
func (f *DurationFlag) IsVisible() bool {
return !f.Hidden
}
// Apply populates the flag given the flag set and environment
func (f *DurationFlag) Apply(set *flag.FlagSet) error {
if val, ok := flagFromEnvOrFile(f.EnvVars, f.FilePath); ok {
if val != "" {
valDuration, err := time.ParseDuration(val)
if err != nil {
return fmt.Errorf("could not parse %q as duration value for flag %s: %s", val, f.Name, err)
}
f.Value = valDuration
f.HasBeenSet = true
}
}
for _, name := range f.Names() {
if f.Destination != nil {
set.DurationVar(f.Destination, name, f.Value, f.Usage)
continue
}
set.Duration(name, f.Value, f.Usage)
}
return nil
}
// Duration looks up the value of a local DurationFlag, returns
// 0 if not found
func (c *Context) Duration(name string) time.Duration {
if fs := c.lookupFlagSet(name); fs != nil {
return lookupDuration(name, fs)
}
return 0
}
func lookupDuration(name string, set *flag.FlagSet) time.Duration {
f := set.Lookup(name)
if f != nil {
parsed, err := time.ParseDuration(f.Value.String())
if err != nil {
return 0
}
return parsed
}
return 0
}

110
vendor/github.com/urfave/cli/v2/flag_float64.go generated vendored Normal file
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package cli
import (
"flag"
"fmt"
"strconv"
)
// Float64Flag is a flag with type float64
type Float64Flag struct {
Name string
Aliases []string
Usage string
EnvVars []string
FilePath string
Required bool
Hidden bool
Value float64
DefaultText string
Destination *float64
HasBeenSet bool
}
// IsSet returns whether or not the flag has been set through env or file
func (f *Float64Flag) IsSet() bool {
return f.HasBeenSet
}
// String returns a readable representation of this value
// (for usage defaults)
func (f *Float64Flag) String() string {
return FlagStringer(f)
}
// Names returns the names of the flag
func (f *Float64Flag) Names() []string {
return flagNames(f.Name, f.Aliases)
}
// IsRequired returns whether or not the flag is required
func (f *Float64Flag) IsRequired() bool {
return f.Required
}
// TakesValue returns true of the flag takes a value, otherwise false
func (f *Float64Flag) TakesValue() bool {
return true
}
// GetUsage returns the usage string for the flag
func (f *Float64Flag) GetUsage() string {
return f.Usage
}
// GetValue returns the flags value as string representation and an empty
// string if the flag takes no value at all.
func (f *Float64Flag) GetValue() string {
return fmt.Sprintf("%f", f.Value)
}
// IsVisible returns true if the flag is not hidden, otherwise false
func (f *Float64Flag) IsVisible() bool {
return !f.Hidden
}
// Apply populates the flag given the flag set and environment
func (f *Float64Flag) Apply(set *flag.FlagSet) error {
if val, ok := flagFromEnvOrFile(f.EnvVars, f.FilePath); ok {
if val != "" {
valFloat, err := strconv.ParseFloat(val, 64)
if err != nil {
return fmt.Errorf("could not parse %q as float64 value for flag %s: %s", val, f.Name, err)
}
f.Value = valFloat
f.HasBeenSet = true
}
}
for _, name := range f.Names() {
if f.Destination != nil {
set.Float64Var(f.Destination, name, f.Value, f.Usage)
continue
}
set.Float64(name, f.Value, f.Usage)
}
return nil
}
// Float64 looks up the value of a local Float64Flag, returns
// 0 if not found
func (c *Context) Float64(name string) float64 {
if fs := c.lookupFlagSet(name); fs != nil {
return lookupFloat64(name, fs)
}
return 0
}
func lookupFloat64(name string, set *flag.FlagSet) float64 {
f := set.Lookup(name)
if f != nil {
parsed, err := strconv.ParseFloat(f.Value.String(), 64)
if err != nil {
return 0
}
return parsed
}
return 0
}

182
vendor/github.com/urfave/cli/v2/flag_float64_slice.go generated vendored Normal file
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package cli
import (
"encoding/json"
"flag"
"fmt"
"strconv"
"strings"
)
// Float64Slice wraps []float64 to satisfy flag.Value
type Float64Slice struct {
slice []float64
hasBeenSet bool
}
// NewFloat64Slice makes a *Float64Slice with default values
func NewFloat64Slice(defaults ...float64) *Float64Slice {
return &Float64Slice{slice: append([]float64{}, defaults...)}
}
// clone allocate a copy of self object
func (f *Float64Slice) clone() *Float64Slice {
n := &Float64Slice{
slice: make([]float64, len(f.slice)),
hasBeenSet: f.hasBeenSet,
}
copy(n.slice, f.slice)
return n
}
// Set parses the value into a float64 and appends it to the list of values
func (f *Float64Slice) Set(value string) error {
if !f.hasBeenSet {
f.slice = []float64{}
f.hasBeenSet = true
}
if strings.HasPrefix(value, slPfx) {
// Deserializing assumes overwrite
_ = json.Unmarshal([]byte(strings.Replace(value, slPfx, "", 1)), &f.slice)
f.hasBeenSet = true
return nil
}
tmp, err := strconv.ParseFloat(value, 64)
if err != nil {
return err
}
f.slice = append(f.slice, tmp)
return nil
}
// String returns a readable representation of this value (for usage defaults)
func (f *Float64Slice) String() string {
return fmt.Sprintf("%#v", f.slice)
}
// Serialize allows Float64Slice to fulfill Serializer
func (f *Float64Slice) Serialize() string {
jsonBytes, _ := json.Marshal(f.slice)
return fmt.Sprintf("%s%s", slPfx, string(jsonBytes))
}
// Value returns the slice of float64s set by this flag
func (f *Float64Slice) Value() []float64 {
return f.slice
}
// Get returns the slice of float64s set by this flag
func (f *Float64Slice) Get() interface{} {
return *f
}
// Float64SliceFlag is a flag with type *Float64Slice
type Float64SliceFlag struct {
Name string
Aliases []string
Usage string
EnvVars []string
FilePath string
Required bool
Hidden bool
Value *Float64Slice
DefaultText string
HasBeenSet bool
}
// IsSet returns whether or not the flag has been set through env or file
func (f *Float64SliceFlag) IsSet() bool {
return f.HasBeenSet
}
// String returns a readable representation of this value
// (for usage defaults)
func (f *Float64SliceFlag) String() string {
return FlagStringer(f)
}
// Names returns the names of the flag
func (f *Float64SliceFlag) Names() []string {
return flagNames(f.Name, f.Aliases)
}
// IsRequired returns whether or not the flag is required
func (f *Float64SliceFlag) IsRequired() bool {
return f.Required
}
// TakesValue returns true if the flag takes a value, otherwise false
func (f *Float64SliceFlag) TakesValue() bool {
return true
}
// GetUsage returns the usage string for the flag
func (f *Float64SliceFlag) GetUsage() string {
return f.Usage
}
// GetValue returns the flags value as string representation and an empty
// string if the flag takes no value at all.
func (f *Float64SliceFlag) GetValue() string {
if f.Value != nil {
return f.Value.String()
}
return ""
}
// IsVisible returns true if the flag is not hidden, otherwise false
func (f *Float64SliceFlag) IsVisible() bool {
return !f.Hidden
}
// Apply populates the flag given the flag set and environment
func (f *Float64SliceFlag) Apply(set *flag.FlagSet) error {
if val, ok := flagFromEnvOrFile(f.EnvVars, f.FilePath); ok {
if val != "" {
f.Value = &Float64Slice{}
for _, s := range strings.Split(val, ",") {
if err := f.Value.Set(strings.TrimSpace(s)); err != nil {
return fmt.Errorf("could not parse %q as float64 slice value for flag %s: %s", f.Value, f.Name, err)
}
}
// Set this to false so that we reset the slice if we then set values from
// flags that have already been set by the environment.
f.Value.hasBeenSet = false
f.HasBeenSet = true
}
}
if f.Value == nil {
f.Value = &Float64Slice{}
}
copyValue := f.Value.clone()
for _, name := range f.Names() {
set.Var(copyValue, name, f.Usage)
}
return nil
}
// Float64Slice looks up the value of a local Float64SliceFlag, returns
// nil if not found
func (c *Context) Float64Slice(name string) []float64 {
if fs := c.lookupFlagSet(name); fs != nil {
return lookupFloat64Slice(name, fs)
}
return nil
}
func lookupFloat64Slice(name string, set *flag.FlagSet) []float64 {
f := set.Lookup(name)
if f != nil {
if slice, ok := f.Value.(*Float64Slice); ok {
return slice.Value()
}
}
return nil
}

113
vendor/github.com/urfave/cli/v2/flag_generic.go generated vendored Normal file
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package cli
import (
"flag"
"fmt"
)
// Generic is a generic parseable type identified by a specific flag
type Generic interface {
Set(value string) error
String() string
}
// GenericFlag is a flag with type Generic
type GenericFlag struct {
Name string
Aliases []string
Usage string
EnvVars []string
FilePath string
Required bool
Hidden bool
TakesFile bool
Value Generic
DefaultText string
HasBeenSet bool
}
// IsSet returns whether or not the flag has been set through env or file
func (f *GenericFlag) IsSet() bool {
return f.HasBeenSet
}
// String returns a readable representation of this value
// (for usage defaults)
func (f *GenericFlag) String() string {
return FlagStringer(f)
}
// Names returns the names of the flag
func (f *GenericFlag) Names() []string {
return flagNames(f.Name, f.Aliases)
}
// IsRequired returns whether or not the flag is required
func (f *GenericFlag) IsRequired() bool {
return f.Required
}
// TakesValue returns true of the flag takes a value, otherwise false
func (f *GenericFlag) TakesValue() bool {
return true
}
// GetUsage returns the usage string for the flag
func (f *GenericFlag) GetUsage() string {
return f.Usage
}
// GetValue returns the flags value as string representation and an empty
// string if the flag takes no value at all.
func (f *GenericFlag) GetValue() string {
if f.Value != nil {
return f.Value.String()
}
return ""
}
// IsVisible returns true if the flag is not hidden, otherwise false
func (f *GenericFlag) IsVisible() bool {
return !f.Hidden
}
// Apply takes the flagset and calls Set on the generic flag with the value
// provided by the user for parsing by the flag
func (f GenericFlag) Apply(set *flag.FlagSet) error {
if val, ok := flagFromEnvOrFile(f.EnvVars, f.FilePath); ok {
if val != "" {
if err := f.Value.Set(val); err != nil {
return fmt.Errorf("could not parse %q as value for flag %s: %s", val, f.Name, err)
}
f.HasBeenSet = true
}
}
for _, name := range f.Names() {
set.Var(f.Value, name, f.Usage)
}
return nil
}
// Generic looks up the value of a local GenericFlag, returns
// nil if not found
func (c *Context) Generic(name string) interface{} {
if fs := c.lookupFlagSet(name); fs != nil {
return lookupGeneric(name, fs)
}
return nil
}
func lookupGeneric(name string, set *flag.FlagSet) interface{} {
f := set.Lookup(name)
if f != nil {
parsed, err := f.Value, error(nil)
if err != nil {
return nil
}
return parsed
}
return nil
}

111
vendor/github.com/urfave/cli/v2/flag_int.go generated vendored Normal file
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@ -0,0 +1,111 @@
package cli
import (
"flag"
"fmt"
"strconv"
)
// IntFlag is a flag with type int
type IntFlag struct {
Name string
Aliases []string
Usage string
EnvVars []string
FilePath string
Required bool
Hidden bool
Value int
DefaultText string
Destination *int
HasBeenSet bool
}
// IsSet returns whether or not the flag has been set through env or file
func (f *IntFlag) IsSet() bool {
return f.HasBeenSet
}
// String returns a readable representation of this value
// (for usage defaults)
func (f *IntFlag) String() string {
return FlagStringer(f)
}
// Names returns the names of the flag
func (f *IntFlag) Names() []string {
return flagNames(f.Name, f.Aliases)
}
// IsRequired returns whether or not the flag is required
func (f *IntFlag) IsRequired() bool {
return f.Required
}
// TakesValue returns true of the flag takes a value, otherwise false
func (f *IntFlag) TakesValue() bool {
return true
}
// GetUsage returns the usage string for the flag
func (f *IntFlag) GetUsage() string {
return f.Usage
}
// GetValue returns the flags value as string representation and an empty
// string if the flag takes no value at all.
func (f *IntFlag) GetValue() string {
return fmt.Sprintf("%d", f.Value)
}
// IsVisible returns true if the flag is not hidden, otherwise false
func (f *IntFlag) IsVisible() bool {
return !f.Hidden
}
// Apply populates the flag given the flag set and environment
func (f *IntFlag) Apply(set *flag.FlagSet) error {
if val, ok := flagFromEnvOrFile(f.EnvVars, f.FilePath); ok {
if val != "" {
valInt, err := strconv.ParseInt(val, 0, 64)
if err != nil {
return fmt.Errorf("could not parse %q as int value for flag %s: %s", val, f.Name, err)
}
f.Value = int(valInt)
f.HasBeenSet = true
}
}
for _, name := range f.Names() {
if f.Destination != nil {
set.IntVar(f.Destination, name, f.Value, f.Usage)
continue
}
set.Int(name, f.Value, f.Usage)
}
return nil
}
// Int looks up the value of a local IntFlag, returns
// 0 if not found
func (c *Context) Int(name string) int {
if fs := c.lookupFlagSet(name); fs != nil {
return lookupInt(name, fs)
}
return 0
}
func lookupInt(name string, set *flag.FlagSet) int {
f := set.Lookup(name)
if f != nil {
parsed, err := strconv.ParseInt(f.Value.String(), 0, 64)
if err != nil {
return 0
}
return int(parsed)
}
return 0
}

110
vendor/github.com/urfave/cli/v2/flag_int64.go generated vendored Normal file
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@ -0,0 +1,110 @@
package cli
import (
"flag"
"fmt"
"strconv"
)
// Int64Flag is a flag with type int64
type Int64Flag struct {
Name string
Aliases []string
Usage string
EnvVars []string
FilePath string
Required bool
Hidden bool
Value int64
DefaultText string
Destination *int64
HasBeenSet bool
}
// IsSet returns whether or not the flag has been set through env or file
func (f *Int64Flag) IsSet() bool {
return f.HasBeenSet
}
// String returns a readable representation of this value
// (for usage defaults)
func (f *Int64Flag) String() string {
return FlagStringer(f)
}
// Names returns the names of the flag
func (f *Int64Flag) Names() []string {
return flagNames(f.Name, f.Aliases)
}
// IsRequired returns whether or not the flag is required
func (f *Int64Flag) IsRequired() bool {
return f.Required
}
// TakesValue returns true of the flag takes a value, otherwise false
func (f *Int64Flag) TakesValue() bool {
return true
}
// GetUsage returns the usage string for the flag
func (f *Int64Flag) GetUsage() string {
return f.Usage
}
// GetValue returns the flags value as string representation and an empty
// string if the flag takes no value at all.
func (f *Int64Flag) GetValue() string {
return fmt.Sprintf("%d", f.Value)
}
// IsVisible returns true if the flag is not hidden, otherwise false
func (f *Int64Flag) IsVisible() bool {
return !f.Hidden
}
// Apply populates the flag given the flag set and environment
func (f *Int64Flag) Apply(set *flag.FlagSet) error {
if val, ok := flagFromEnvOrFile(f.EnvVars, f.FilePath); ok {
if val != "" {
valInt, err := strconv.ParseInt(val, 0, 64)
if err != nil {
return fmt.Errorf("could not parse %q as int value for flag %s: %s", val, f.Name, err)
}
f.Value = valInt
f.HasBeenSet = true
}
}
for _, name := range f.Names() {
if f.Destination != nil {
set.Int64Var(f.Destination, name, f.Value, f.Usage)
continue
}
set.Int64(name, f.Value, f.Usage)
}
return nil
}
// Int64 looks up the value of a local Int64Flag, returns
// 0 if not found
func (c *Context) Int64(name string) int64 {
if fs := c.lookupFlagSet(name); fs != nil {
return lookupInt64(name, fs)
}
return 0
}
func lookupInt64(name string, set *flag.FlagSet) int64 {
f := set.Lookup(name)
if f != nil {
parsed, err := strconv.ParseInt(f.Value.String(), 0, 64)
if err != nil {
return 0
}
return parsed
}
return 0
}

181
vendor/github.com/urfave/cli/v2/flag_int64_slice.go generated vendored Normal file
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@ -0,0 +1,181 @@
package cli
import (
"encoding/json"
"flag"
"fmt"
"strconv"
"strings"
)
// Int64Slice wraps []int64 to satisfy flag.Value
type Int64Slice struct {
slice []int64
hasBeenSet bool
}
// NewInt64Slice makes an *Int64Slice with default values
func NewInt64Slice(defaults ...int64) *Int64Slice {
return &Int64Slice{slice: append([]int64{}, defaults...)}
}
// clone allocate a copy of self object
func (i *Int64Slice) clone() *Int64Slice {
n := &Int64Slice{
slice: make([]int64, len(i.slice)),
hasBeenSet: i.hasBeenSet,
}
copy(n.slice, i.slice)
return n
}
// Set parses the value into an integer and appends it to the list of values
func (i *Int64Slice) Set(value string) error {
if !i.hasBeenSet {
i.slice = []int64{}
i.hasBeenSet = true
}
if strings.HasPrefix(value, slPfx) {
// Deserializing assumes overwrite
_ = json.Unmarshal([]byte(strings.Replace(value, slPfx, "", 1)), &i.slice)
i.hasBeenSet = true
return nil
}
tmp, err := strconv.ParseInt(value, 0, 64)
if err != nil {
return err
}
i.slice = append(i.slice, tmp)
return nil
}
// String returns a readable representation of this value (for usage defaults)
func (i *Int64Slice) String() string {
return fmt.Sprintf("%#v", i.slice)
}
// Serialize allows Int64Slice to fulfill Serializer
func (i *Int64Slice) Serialize() string {
jsonBytes, _ := json.Marshal(i.slice)
return fmt.Sprintf("%s%s", slPfx, string(jsonBytes))
}
// Value returns the slice of ints set by this flag
func (i *Int64Slice) Value() []int64 {
return i.slice
}
// Get returns the slice of ints set by this flag
func (i *Int64Slice) Get() interface{} {
return *i
}
// Int64SliceFlag is a flag with type *Int64Slice
type Int64SliceFlag struct {
Name string
Aliases []string
Usage string
EnvVars []string
FilePath string
Required bool
Hidden bool
Value *Int64Slice
DefaultText string
HasBeenSet bool
}
// IsSet returns whether or not the flag has been set through env or file
func (f *Int64SliceFlag) IsSet() bool {
return f.HasBeenSet
}
// String returns a readable representation of this value
// (for usage defaults)
func (f *Int64SliceFlag) String() string {
return FlagStringer(f)
}
// Names returns the names of the flag
func (f *Int64SliceFlag) Names() []string {
return flagNames(f.Name, f.Aliases)
}
// IsRequired returns whether or not the flag is required
func (f *Int64SliceFlag) IsRequired() bool {
return f.Required
}
// TakesValue returns true of the flag takes a value, otherwise false
func (f *Int64SliceFlag) TakesValue() bool {
return true
}
// GetUsage returns the usage string for the flag
func (f Int64SliceFlag) GetUsage() string {
return f.Usage
}
// GetValue returns the flags value as string representation and an empty
// string if the flag takes no value at all.
func (f *Int64SliceFlag) GetValue() string {
if f.Value != nil {
return f.Value.String()
}
return ""
}
// IsVisible returns true if the flag is not hidden, otherwise false
func (f *Int64SliceFlag) IsVisible() bool {
return !f.Hidden
}
// Apply populates the flag given the flag set and environment
func (f *Int64SliceFlag) Apply(set *flag.FlagSet) error {
if val, ok := flagFromEnvOrFile(f.EnvVars, f.FilePath); ok {
f.Value = &Int64Slice{}
for _, s := range strings.Split(val, ",") {
if err := f.Value.Set(strings.TrimSpace(s)); err != nil {
return fmt.Errorf("could not parse %q as int64 slice value for flag %s: %s", val, f.Name, err)
}
}
// Set this to false so that we reset the slice if we then set values from
// flags that have already been set by the environment.
f.Value.hasBeenSet = false
f.HasBeenSet = true
}
if f.Value == nil {
f.Value = &Int64Slice{}
}
copyValue := f.Value.clone()
for _, name := range f.Names() {
set.Var(copyValue, name, f.Usage)
}
return nil
}
// Int64Slice looks up the value of a local Int64SliceFlag, returns
// nil if not found
func (c *Context) Int64Slice(name string) []int64 {
if fs := c.lookupFlagSet(name); fs != nil {
return lookupInt64Slice(name, fs)
}
return nil
}
func lookupInt64Slice(name string, set *flag.FlagSet) []int64 {
f := set.Lookup(name)
if f != nil {
if slice, ok := f.Value.(*Int64Slice); ok {
return slice.Value()
}
}
return nil
}

192
vendor/github.com/urfave/cli/v2/flag_int_slice.go generated vendored Normal file
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@ -0,0 +1,192 @@
package cli
import (
"encoding/json"
"flag"
"fmt"
"strconv"
"strings"
)
// IntSlice wraps []int to satisfy flag.Value
type IntSlice struct {
slice []int
hasBeenSet bool
}
// NewIntSlice makes an *IntSlice with default values
func NewIntSlice(defaults ...int) *IntSlice {
return &IntSlice{slice: append([]int{}, defaults...)}
}
// clone allocate a copy of self object
func (i *IntSlice) clone() *IntSlice {
n := &IntSlice{
slice: make([]int, len(i.slice)),
hasBeenSet: i.hasBeenSet,
}
copy(n.slice, i.slice)
return n
}
// TODO: Consistently have specific Set function for Int64 and Float64 ?
// SetInt directly adds an integer to the list of values
func (i *IntSlice) SetInt(value int) {
if !i.hasBeenSet {
i.slice = []int{}
i.hasBeenSet = true
}
i.slice = append(i.slice, value)
}
// Set parses the value into an integer and appends it to the list of values
func (i *IntSlice) Set(value string) error {
if !i.hasBeenSet {
i.slice = []int{}
i.hasBeenSet = true
}
if strings.HasPrefix(value, slPfx) {
// Deserializing assumes overwrite
_ = json.Unmarshal([]byte(strings.Replace(value, slPfx, "", 1)), &i.slice)
i.hasBeenSet = true
return nil
}
tmp, err := strconv.ParseInt(value, 0, 64)
if err != nil {
return err
}
i.slice = append(i.slice, int(tmp))
return nil
}
// String returns a readable representation of this value (for usage defaults)
func (i *IntSlice) String() string {
return fmt.Sprintf("%#v", i.slice)
}
// Serialize allows IntSlice to fulfill Serializer
func (i *IntSlice) Serialize() string {
jsonBytes, _ := json.Marshal(i.slice)
return fmt.Sprintf("%s%s", slPfx, string(jsonBytes))
}
// Value returns the slice of ints set by this flag
func (i *IntSlice) Value() []int {
return i.slice
}
// Get returns the slice of ints set by this flag
func (i *IntSlice) Get() interface{} {
return *i
}
// IntSliceFlag is a flag with type *IntSlice
type IntSliceFlag struct {
Name string
Aliases []string
Usage string
EnvVars []string
FilePath string
Required bool
Hidden bool
Value *IntSlice
DefaultText string
HasBeenSet bool
}
// IsSet returns whether or not the flag has been set through env or file
func (f *IntSliceFlag) IsSet() bool {
return f.HasBeenSet
}
// String returns a readable representation of this value
// (for usage defaults)
func (f *IntSliceFlag) String() string {
return FlagStringer(f)
}
// Names returns the names of the flag
func (f *IntSliceFlag) Names() []string {
return flagNames(f.Name, f.Aliases)
}
// IsRequired returns whether or not the flag is required
func (f *IntSliceFlag) IsRequired() bool {
return f.Required
}
// TakesValue returns true of the flag takes a value, otherwise false
func (f *IntSliceFlag) TakesValue() bool {
return true
}
// GetUsage returns the usage string for the flag
func (f IntSliceFlag) GetUsage() string {
return f.Usage
}
// GetValue returns the flags value as string representation and an empty
// string if the flag takes no value at all.
func (f *IntSliceFlag) GetValue() string {
if f.Value != nil {
return f.Value.String()
}
return ""
}
// IsVisible returns true if the flag is not hidden, otherwise false
func (f *IntSliceFlag) IsVisible() bool {
return !f.Hidden
}
// Apply populates the flag given the flag set and environment
func (f *IntSliceFlag) Apply(set *flag.FlagSet) error {
if val, ok := flagFromEnvOrFile(f.EnvVars, f.FilePath); ok {
f.Value = &IntSlice{}
for _, s := range strings.Split(val, ",") {
if err := f.Value.Set(strings.TrimSpace(s)); err != nil {
return fmt.Errorf("could not parse %q as int slice value for flag %s: %s", val, f.Name, err)
}
}
// Set this to false so that we reset the slice if we then set values from
// flags that have already been set by the environment.
f.Value.hasBeenSet = false
f.HasBeenSet = true
}
if f.Value == nil {
f.Value = &IntSlice{}
}
copyValue := f.Value.clone()
for _, name := range f.Names() {
set.Var(copyValue, name, f.Usage)
}
return nil
}
// IntSlice looks up the value of a local IntSliceFlag, returns
// nil if not found
func (c *Context) IntSlice(name string) []int {
if fs := c.lookupFlagSet(name); fs != nil {
return lookupIntSlice(name, fs)
}
return nil
}
func lookupIntSlice(name string, set *flag.FlagSet) []int {
f := set.Lookup(name)
if f != nil {
if slice, ok := f.Value.(*IntSlice); ok {
return slice.Value()
}
}
return nil
}

100
vendor/github.com/urfave/cli/v2/flag_path.go generated vendored Normal file
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@ -0,0 +1,100 @@
package cli
import "flag"
type PathFlag struct {
Name string
Aliases []string
Usage string
EnvVars []string
FilePath string
Required bool
Hidden bool
TakesFile bool
Value string
DefaultText string
Destination *string
HasBeenSet bool
}
// IsSet returns whether or not the flag has been set through env or file
func (f *PathFlag) IsSet() bool {
return f.HasBeenSet
}
// String returns a readable representation of this value
// (for usage defaults)
func (f *PathFlag) String() string {
return FlagStringer(f)
}
// Names returns the names of the flag
func (f *PathFlag) Names() []string {
return flagNames(f.Name, f.Aliases)
}
// IsRequired returns whether or not the flag is required
func (f *PathFlag) IsRequired() bool {
return f.Required
}
// TakesValue returns true of the flag takes a value, otherwise false
func (f *PathFlag) TakesValue() bool {
return true
}
// GetUsage returns the usage string for the flag
func (f *PathFlag) GetUsage() string {
return f.Usage
}
// GetValue returns the flags value as string representation and an empty
// string if the flag takes no value at all.
func (f *PathFlag) GetValue() string {
return f.Value
}
// IsVisible returns true if the flag is not hidden, otherwise false
func (f *PathFlag) IsVisible() bool {
return !f.Hidden
}
// Apply populates the flag given the flag set and environment
func (f *PathFlag) Apply(set *flag.FlagSet) error {
if val, ok := flagFromEnvOrFile(f.EnvVars, f.FilePath); ok {
f.Value = val
f.HasBeenSet = true
}
for _, name := range f.Names() {
if f.Destination != nil {
set.StringVar(f.Destination, name, f.Value, f.Usage)
continue
}
set.String(name, f.Value, f.Usage)
}
return nil
}
// Path looks up the value of a local PathFlag, returns
// "" if not found
func (c *Context) Path(name string) string {
if fs := c.lookupFlagSet(name); fs != nil {
return lookupPath(name, fs)
}
return ""
}
func lookupPath(name string, set *flag.FlagSet) string {
f := set.Lookup(name)
if f != nil {
parsed, err := f.Value.String(), error(nil)
if err != nil {
return ""
}
return parsed
}
return ""
}

97
vendor/github.com/urfave/cli/v2/flag_string.go generated vendored Normal file
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@ -0,0 +1,97 @@
package cli
import "flag"
// StringFlag is a flag with type string
type StringFlag struct {
Name string
Aliases []string
Usage string
EnvVars []string
FilePath string
Required bool
Hidden bool
TakesFile bool
Value string
DefaultText string
Destination *string
HasBeenSet bool
}
// IsSet returns whether or not the flag has been set through env or file
func (f *StringFlag) IsSet() bool {
return f.HasBeenSet
}
// String returns a readable representation of this value
// (for usage defaults)
func (f *StringFlag) String() string {
return FlagStringer(f)
}
// Names returns the names of the flag
func (f *StringFlag) Names() []string {
return flagNames(f.Name, f.Aliases)
}
// IsRequired returns whether or not the flag is required
func (f *StringFlag) IsRequired() bool {
return f.Required
}
// TakesValue returns true of the flag takes a value, otherwise false
func (f *StringFlag) TakesValue() bool {
return true
}
// GetUsage returns the usage string for the flag
func (f *StringFlag) GetUsage() string {
return f.Usage
}
// GetValue returns the flags value as string representation and an empty
// string if the flag takes no value at all.
func (f *StringFlag) GetValue() string {
return f.Value
}
// IsVisible returns true if the flag is not hidden, otherwise false
func (f *StringFlag) IsVisible() bool {
return !f.Hidden
}
// Apply populates the flag given the flag set and environment
func (f *StringFlag) Apply(set *flag.FlagSet) error {
if val, ok := flagFromEnvOrFile(f.EnvVars, f.FilePath); ok {
f.Value = val
f.HasBeenSet = true
}
for _, name := range f.Names() {
if f.Destination != nil {
set.StringVar(f.Destination, name, f.Value, f.Usage)
continue
}
set.String(name, f.Value, f.Usage)
}
return nil
}
// String looks up the value of a local StringFlag, returns
// "" if not found
func (c *Context) String(name string) string {
if fs := c.lookupFlagSet(name); fs != nil {
return lookupString(name, fs)
}
return ""
}
func lookupString(name string, set *flag.FlagSet) string {
f := set.Lookup(name)
if f != nil {
parsed := f.Value.String()
return parsed
}
return ""
}

193
vendor/github.com/urfave/cli/v2/flag_string_slice.go generated vendored Normal file
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@ -0,0 +1,193 @@
package cli
import (
"encoding/json"
"flag"
"fmt"
"strings"
)
// StringSlice wraps a []string to satisfy flag.Value
type StringSlice struct {
slice []string
hasBeenSet bool
}
// NewStringSlice creates a *StringSlice with default values
func NewStringSlice(defaults ...string) *StringSlice {
return &StringSlice{slice: append([]string{}, defaults...)}
}
// clone allocate a copy of self object
func (s *StringSlice) clone() *StringSlice {
n := &StringSlice{
slice: make([]string, len(s.slice)),
hasBeenSet: s.hasBeenSet,
}
copy(n.slice, s.slice)
return n
}
// Set appends the string value to the list of values
func (s *StringSlice) Set(value string) error {
if !s.hasBeenSet {
s.slice = []string{}
s.hasBeenSet = true
}
if strings.HasPrefix(value, slPfx) {
// Deserializing assumes overwrite
_ = json.Unmarshal([]byte(strings.Replace(value, slPfx, "", 1)), &s.slice)
s.hasBeenSet = true
return nil
}
s.slice = append(s.slice, value)
return nil
}
// String returns a readable representation of this value (for usage defaults)
func (s *StringSlice) String() string {
return fmt.Sprintf("%s", s.slice)
}
// Serialize allows StringSlice to fulfill Serializer
func (s *StringSlice) Serialize() string {
jsonBytes, _ := json.Marshal(s.slice)
return fmt.Sprintf("%s%s", slPfx, string(jsonBytes))
}
// Value returns the slice of strings set by this flag
func (s *StringSlice) Value() []string {
return s.slice
}
// Get returns the slice of strings set by this flag
func (s *StringSlice) Get() interface{} {
return *s
}
// StringSliceFlag is a flag with type *StringSlice
type StringSliceFlag struct {
Name string
Aliases []string
Usage string
EnvVars []string
FilePath string
Required bool
Hidden bool
TakesFile bool
Value *StringSlice
DefaultText string
HasBeenSet bool
Destination *StringSlice
}
// IsSet returns whether or not the flag has been set through env or file
func (f *StringSliceFlag) IsSet() bool {
return f.HasBeenSet
}
// String returns a readable representation of this value
// (for usage defaults)
func (f *StringSliceFlag) String() string {
return FlagStringer(f)
}
// Names returns the names of the flag
func (f *StringSliceFlag) Names() []string {
return flagNames(f.Name, f.Aliases)
}
// IsRequired returns whether or not the flag is required
func (f *StringSliceFlag) IsRequired() bool {
return f.Required
}
// TakesValue returns true of the flag takes a value, otherwise false
func (f *StringSliceFlag) TakesValue() bool {
return true
}
// GetUsage returns the usage string for the flag
func (f *StringSliceFlag) GetUsage() string {
return f.Usage
}
// GetValue returns the flags value as string representation and an empty
// string if the flag takes no value at all.
func (f *StringSliceFlag) GetValue() string {
if f.Value != nil {
return f.Value.String()
}
return ""
}
// IsVisible returns true if the flag is not hidden, otherwise false
func (f *StringSliceFlag) IsVisible() bool {
return !f.Hidden
}
// Apply populates the flag given the flag set and environment
func (f *StringSliceFlag) Apply(set *flag.FlagSet) error {
if f.Destination != nil && f.Value != nil {
f.Destination.slice = make([]string, len(f.Value.slice))
copy(f.Destination.slice, f.Value.slice)
}
if val, ok := flagFromEnvOrFile(f.EnvVars, f.FilePath); ok {
if f.Value == nil {
f.Value = &StringSlice{}
}
destination := f.Value
if f.Destination != nil {
destination = f.Destination
}
for _, s := range strings.Split(val, ",") {
if err := destination.Set(strings.TrimSpace(s)); err != nil {
return fmt.Errorf("could not parse %q as string value for flag %s: %s", val, f.Name, err)
}
}
// Set this to false so that we reset the slice if we then set values from
// flags that have already been set by the environment.
destination.hasBeenSet = false
f.HasBeenSet = true
}
if f.Value == nil {
f.Value = &StringSlice{}
}
setValue := f.Destination
if f.Destination == nil {
setValue = f.Value.clone()
}
for _, name := range f.Names() {
set.Var(setValue, name, f.Usage)
}
return nil
}
// StringSlice looks up the value of a local StringSliceFlag, returns
// nil if not found
func (c *Context) StringSlice(name string) []string {
if fs := c.lookupFlagSet(name); fs != nil {
return lookupStringSlice(name, fs)
}
return nil
}
func lookupStringSlice(name string, set *flag.FlagSet) []string {
f := set.Lookup(name)
if f != nil {
if slice, ok := f.Value.(*StringSlice); ok {
return slice.Value()
}
}
return nil
}

169
vendor/github.com/urfave/cli/v2/flag_timestamp.go generated vendored Normal file
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package cli
import (
"flag"
"fmt"
"time"
)
// Timestamp wrap to satisfy golang's flag interface.
type Timestamp struct {
timestamp *time.Time
hasBeenSet bool
layout string
}
// Timestamp constructor
func NewTimestamp(timestamp time.Time) *Timestamp {
return &Timestamp{timestamp: &timestamp}
}
// Set the timestamp value directly
func (t *Timestamp) SetTimestamp(value time.Time) {
if !t.hasBeenSet {
t.timestamp = &value
t.hasBeenSet = true
}
}
// Set the timestamp string layout for future parsing
func (t *Timestamp) SetLayout(layout string) {
t.layout = layout
}
// Parses the string value to timestamp
func (t *Timestamp) Set(value string) error {
timestamp, err := time.Parse(t.layout, value)
if err != nil {
return err
}
t.timestamp = &timestamp
t.hasBeenSet = true
return nil
}
// String returns a readable representation of this value (for usage defaults)
func (t *Timestamp) String() string {
return fmt.Sprintf("%#v", t.timestamp)
}
// Value returns the timestamp value stored in the flag
func (t *Timestamp) Value() *time.Time {
return t.timestamp
}
// Get returns the flag structure
func (t *Timestamp) Get() interface{} {
return *t
}
// TimestampFlag is a flag with type time
type TimestampFlag struct {
Name string
Aliases []string
Usage string
EnvVars []string
FilePath string
Required bool
Hidden bool
Layout string
Value *Timestamp
DefaultText string
HasBeenSet bool
Destination *Timestamp
}
// IsSet returns whether or not the flag has been set through env or file
func (f *TimestampFlag) IsSet() bool {
return f.HasBeenSet
}
// String returns a readable representation of this value
// (for usage defaults)
func (f *TimestampFlag) String() string {
return FlagStringer(f)
}
// Names returns the names of the flag
func (f *TimestampFlag) Names() []string {
return flagNames(f.Name, f.Aliases)
}
// IsRequired returns whether or not the flag is required
func (f *TimestampFlag) IsRequired() bool {
return f.Required
}
// TakesValue returns true of the flag takes a value, otherwise false
func (f *TimestampFlag) TakesValue() bool {
return true
}
// GetUsage returns the usage string for the flag
func (f *TimestampFlag) GetUsage() string {
return f.Usage
}
// GetValue returns the flags value as string representation and an empty
// string if the flag takes no value at all.
func (f *TimestampFlag) GetValue() string {
if f.Value != nil {
return f.Value.timestamp.String()
}
return ""
}
// IsVisible returns true if the flag is not hidden, otherwise false
func (f *TimestampFlag) IsVisible() bool {
return !f.Hidden
}
// Apply populates the flag given the flag set and environment
func (f *TimestampFlag) Apply(set *flag.FlagSet) error {
if f.Layout == "" {
return fmt.Errorf("timestamp Layout is required")
}
if f.Value == nil {
f.Value = &Timestamp{}
}
f.Value.SetLayout(f.Layout)
if f.Destination != nil {
f.Destination.SetLayout(f.Layout)
}
if val, ok := flagFromEnvOrFile(f.EnvVars, f.FilePath); ok {
if err := f.Value.Set(val); err != nil {
return fmt.Errorf("could not parse %q as timestamp value for flag %s: %s", val, f.Name, err)
}
f.HasBeenSet = true
}
for _, name := range f.Names() {
if f.Destination != nil {
set.Var(f.Destination, name, f.Usage)
continue
}
set.Var(f.Value, name, f.Usage)
}
return nil
}
// Timestamp gets the timestamp from a flag name
func (c *Context) Timestamp(name string) *time.Time {
if fs := c.lookupFlagSet(name); fs != nil {
return lookupTimestamp(name, fs)
}
return nil
}
// Fetches the timestamp value from the local timestampWrap
func lookupTimestamp(name string, set *flag.FlagSet) *time.Time {
f := set.Lookup(name)
if f != nil {
return (f.Value.(*Timestamp)).Value()
}
return nil
}

110
vendor/github.com/urfave/cli/v2/flag_uint.go generated vendored Normal file
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@ -0,0 +1,110 @@
package cli
import (
"flag"
"fmt"
"strconv"
)
// UintFlag is a flag with type uint
type UintFlag struct {
Name string
Aliases []string
Usage string
EnvVars []string
FilePath string
Required bool
Hidden bool
Value uint
DefaultText string
Destination *uint
HasBeenSet bool
}
// IsSet returns whether or not the flag has been set through env or file
func (f *UintFlag) IsSet() bool {
return f.HasBeenSet
}
// String returns a readable representation of this value
// (for usage defaults)
func (f *UintFlag) String() string {
return FlagStringer(f)
}
// Names returns the names of the flag
func (f *UintFlag) Names() []string {
return flagNames(f.Name, f.Aliases)
}
// IsRequired returns whether or not the flag is required
func (f *UintFlag) IsRequired() bool {
return f.Required
}
// TakesValue returns true of the flag takes a value, otherwise false
func (f *UintFlag) TakesValue() bool {
return true
}
// GetUsage returns the usage string for the flag
func (f *UintFlag) GetUsage() string {
return f.Usage
}
// IsVisible returns true if the flag is not hidden, otherwise false
func (f *UintFlag) IsVisible() bool {
return !f.Hidden
}
// Apply populates the flag given the flag set and environment
func (f *UintFlag) Apply(set *flag.FlagSet) error {
if val, ok := flagFromEnvOrFile(f.EnvVars, f.FilePath); ok {
if val != "" {
valInt, err := strconv.ParseUint(val, 0, 64)
if err != nil {
return fmt.Errorf("could not parse %q as uint value for flag %s: %s", val, f.Name, err)
}
f.Value = uint(valInt)
f.HasBeenSet = true
}
}
for _, name := range f.Names() {
if f.Destination != nil {
set.UintVar(f.Destination, name, f.Value, f.Usage)
continue
}
set.Uint(name, f.Value, f.Usage)
}
return nil
}
// GetValue returns the flags value as string representation and an empty
// string if the flag takes no value at all.
func (f *UintFlag) GetValue() string {
return fmt.Sprintf("%d", f.Value)
}
// Uint looks up the value of a local UintFlag, returns
// 0 if not found
func (c *Context) Uint(name string) uint {
if fs := c.lookupFlagSet(name); fs != nil {
return lookupUint(name, fs)
}
return 0
}
func lookupUint(name string, set *flag.FlagSet) uint {
f := set.Lookup(name)
if f != nil {
parsed, err := strconv.ParseUint(f.Value.String(), 0, 64)
if err != nil {
return 0
}
return uint(parsed)
}
return 0
}

110
vendor/github.com/urfave/cli/v2/flag_uint64.go generated vendored Normal file
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@ -0,0 +1,110 @@
package cli
import (
"flag"
"fmt"
"strconv"
)
// Uint64Flag is a flag with type uint64
type Uint64Flag struct {
Name string
Aliases []string
Usage string
EnvVars []string
FilePath string
Required bool
Hidden bool
Value uint64
DefaultText string
Destination *uint64
HasBeenSet bool
}
// IsSet returns whether or not the flag has been set through env or file
func (f *Uint64Flag) IsSet() bool {
return f.HasBeenSet
}
// String returns a readable representation of this value
// (for usage defaults)
func (f *Uint64Flag) String() string {
return FlagStringer(f)
}
// Names returns the names of the flag
func (f *Uint64Flag) Names() []string {
return flagNames(f.Name, f.Aliases)
}
// IsRequired returns whether or not the flag is required
func (f *Uint64Flag) IsRequired() bool {
return f.Required
}
// TakesValue returns true of the flag takes a value, otherwise false
func (f *Uint64Flag) TakesValue() bool {
return true
}
// GetUsage returns the usage string for the flag
func (f *Uint64Flag) GetUsage() string {
return f.Usage
}
// IsVisible returns true if the flag is not hidden, otherwise false
func (f *Uint64Flag) IsVisible() bool {
return !f.Hidden
}
// Apply populates the flag given the flag set and environment
func (f *Uint64Flag) Apply(set *flag.FlagSet) error {
if val, ok := flagFromEnvOrFile(f.EnvVars, f.FilePath); ok {
if val != "" {
valInt, err := strconv.ParseUint(val, 0, 64)
if err != nil {
return fmt.Errorf("could not parse %q as uint64 value for flag %s: %s", val, f.Name, err)
}
f.Value = valInt
f.HasBeenSet = true
}
}
for _, name := range f.Names() {
if f.Destination != nil {
set.Uint64Var(f.Destination, name, f.Value, f.Usage)
continue
}
set.Uint64(name, f.Value, f.Usage)
}
return nil
}
// GetValue returns the flags value as string representation and an empty
// string if the flag takes no value at all.
func (f *Uint64Flag) GetValue() string {
return fmt.Sprintf("%d", f.Value)
}
// Uint64 looks up the value of a local Uint64Flag, returns
// 0 if not found
func (c *Context) Uint64(name string) uint64 {
if fs := c.lookupFlagSet(name); fs != nil {
return lookupUint64(name, fs)
}
return 0
}
func lookupUint64(name string, set *flag.FlagSet) uint64 {
f := set.Lookup(name)
if f != nil {
parsed, err := strconv.ParseUint(f.Value.String(), 0, 64)
if err != nil {
return 0
}
return parsed
}
return 0
}

44
vendor/github.com/urfave/cli/v2/funcs.go generated vendored Normal file
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package cli
// BashCompleteFunc is an action to execute when the shell completion flag is set
type BashCompleteFunc func(*Context)
// BeforeFunc is an action to execute before any subcommands are run, but after
// the context is ready if a non-nil error is returned, no subcommands are run
type BeforeFunc func(*Context) error
// AfterFunc is an action to execute after any subcommands are run, but after the
// subcommand has finished it is run even if Action() panics
type AfterFunc func(*Context) error
// ActionFunc is the action to execute when no subcommands are specified
type ActionFunc func(*Context) error
// CommandNotFoundFunc is executed if the proper command cannot be found
type CommandNotFoundFunc func(*Context, string)
// OnUsageErrorFunc is executed if a usage error occurs. This is useful for displaying
// customized usage error messages. This function is able to replace the
// original error messages. If this function is not set, the "Incorrect usage"
// is displayed and the execution is interrupted.
type OnUsageErrorFunc func(context *Context, err error, isSubcommand bool) error
// ExitErrHandlerFunc is executed if provided in order to handle exitError values
// returned by Actions and Before/After functions.
type ExitErrHandlerFunc func(context *Context, err error)
// FlagStringFunc is used by the help generation to display a flag, which is
// expected to be a single line.
type FlagStringFunc func(Flag) string
// FlagNamePrefixFunc is used by the default FlagStringFunc to create prefix
// text for a flag's full name.
type FlagNamePrefixFunc func(fullName []string, placeholder string) string
// FlagEnvHintFunc is used by the default FlagStringFunc to annotate flag help
// with the environment variable details.
type FlagEnvHintFunc func(envVars []string, str string) string
// FlagFileHintFunc is used by the default FlagStringFunc to annotate flag help
// with the file path details.
type FlagFileHintFunc func(filePath, str string) string

386
vendor/github.com/urfave/cli/v2/help.go generated vendored Normal file
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package cli
import (
"fmt"
"io"
"os"
"strings"
"text/tabwriter"
"text/template"
"unicode/utf8"
)
var helpCommand = &Command{
Name: "help",
Aliases: []string{"h"},
Usage: "Shows a list of commands or help for one command",
ArgsUsage: "[command]",
Action: func(c *Context) error {
args := c.Args()
if args.Present() {
return ShowCommandHelp(c, args.First())
}
_ = ShowAppHelp(c)
return nil
},
}
var helpSubcommand = &Command{
Name: "help",
Aliases: []string{"h"},
Usage: "Shows a list of commands or help for one command",
ArgsUsage: "[command]",
Action: func(c *Context) error {
args := c.Args()
if args.Present() {
return ShowCommandHelp(c, args.First())
}
return ShowSubcommandHelp(c)
},
}
// Prints help for the App or Command
type helpPrinter func(w io.Writer, templ string, data interface{})
// Prints help for the App or Command with custom template function.
type helpPrinterCustom func(w io.Writer, templ string, data interface{}, customFunc map[string]interface{})
// HelpPrinter is a function that writes the help output. If not set explicitly,
// this calls HelpPrinterCustom using only the default template functions.
//
// If custom logic for printing help is required, this function can be
// overridden. If the ExtraInfo field is defined on an App, this function
// should not be modified, as HelpPrinterCustom will be used directly in order
// to capture the extra information.
var HelpPrinter helpPrinter = printHelp
// HelpPrinterCustom is a function that writes the help output. It is used as
// the default implementation of HelpPrinter, and may be called directly if
// the ExtraInfo field is set on an App.
var HelpPrinterCustom helpPrinterCustom = printHelpCustom
// VersionPrinter prints the version for the App
var VersionPrinter = printVersion
// ShowAppHelpAndExit - Prints the list of subcommands for the app and exits with exit code.
func ShowAppHelpAndExit(c *Context, exitCode int) {
_ = ShowAppHelp(c)
os.Exit(exitCode)
}
// ShowAppHelp is an action that displays the help.
func ShowAppHelp(c *Context) error {
tpl := c.App.CustomAppHelpTemplate
if tpl == "" {
tpl = AppHelpTemplate
}
if c.App.ExtraInfo == nil {
HelpPrinter(c.App.Writer, tpl, c.App)
return nil
}
customAppData := func() map[string]interface{} {
return map[string]interface{}{
"ExtraInfo": c.App.ExtraInfo,
}
}
HelpPrinterCustom(c.App.Writer, tpl, c.App, customAppData())
return nil
}
// DefaultAppComplete prints the list of subcommands as the default app completion method
func DefaultAppComplete(c *Context) {
DefaultCompleteWithFlags(nil)(c)
}
func printCommandSuggestions(commands []*Command, writer io.Writer) {
for _, command := range commands {
if command.Hidden {
continue
}
if os.Getenv("_CLI_ZSH_AUTOCOMPLETE_HACK") == "1" {
for _, name := range command.Names() {
_, _ = fmt.Fprintf(writer, "%s:%s\n", name, command.Usage)
}
} else {
for _, name := range command.Names() {
_, _ = fmt.Fprintf(writer, "%s\n", name)
}
}
}
}
func cliArgContains(flagName string) bool {
for _, name := range strings.Split(flagName, ",") {
name = strings.TrimSpace(name)
count := utf8.RuneCountInString(name)
if count > 2 {
count = 2
}
flag := fmt.Sprintf("%s%s", strings.Repeat("-", count), name)
for _, a := range os.Args {
if a == flag {
return true
}
}
}
return false
}
func printFlagSuggestions(lastArg string, flags []Flag, writer io.Writer) {
cur := strings.TrimPrefix(lastArg, "-")
cur = strings.TrimPrefix(cur, "-")
for _, flag := range flags {
if bflag, ok := flag.(*BoolFlag); ok && bflag.Hidden {
continue
}
for _, name := range flag.Names() {
name = strings.TrimSpace(name)
// this will get total count utf8 letters in flag name
count := utf8.RuneCountInString(name)
if count > 2 {
count = 2 // resuse this count to generate single - or -- in flag completion
}
// if flag name has more than one utf8 letter and last argument in cli has -- prefix then
// skip flag completion for short flags example -v or -x
if strings.HasPrefix(lastArg, "--") && count == 1 {
continue
}
// match if last argument matches this flag and it is not repeated
if strings.HasPrefix(name, cur) && cur != name && !cliArgContains(name) {
flagCompletion := fmt.Sprintf("%s%s", strings.Repeat("-", count), name)
_, _ = fmt.Fprintln(writer, flagCompletion)
}
}
}
}
func DefaultCompleteWithFlags(cmd *Command) func(c *Context) {
return func(c *Context) {
if len(os.Args) > 2 {
lastArg := os.Args[len(os.Args)-2]
if strings.HasPrefix(lastArg, "-") {
printFlagSuggestions(lastArg, c.App.Flags, c.App.Writer)
if cmd != nil {
printFlagSuggestions(lastArg, cmd.Flags, c.App.Writer)
}
return
}
}
if cmd != nil {
printCommandSuggestions(cmd.Subcommands, c.App.Writer)
} else {
printCommandSuggestions(c.App.Commands, c.App.Writer)
}
}
}
// ShowCommandHelpAndExit - exits with code after showing help
func ShowCommandHelpAndExit(c *Context, command string, code int) {
_ = ShowCommandHelp(c, command)
os.Exit(code)
}
// ShowCommandHelp prints help for the given command
func ShowCommandHelp(ctx *Context, command string) error {
// show the subcommand help for a command with subcommands
if command == "" {
HelpPrinter(ctx.App.Writer, SubcommandHelpTemplate, ctx.App)
return nil
}
for _, c := range ctx.App.Commands {
if c.HasName(command) {
templ := c.CustomHelpTemplate
if templ == "" {
templ = CommandHelpTemplate
}
HelpPrinter(ctx.App.Writer, templ, c)
return nil
}
}
if ctx.App.CommandNotFound == nil {
return Exit(fmt.Sprintf("No help topic for '%v'", command), 3)
}
ctx.App.CommandNotFound(ctx, command)
return nil
}
// ShowSubcommandHelpAndExit - Prints help for the given subcommand and exits with exit code.
func ShowSubcommandHelpAndExit(c *Context, exitCode int) {
_ = ShowSubcommandHelp(c)
os.Exit(exitCode)
}
// ShowSubcommandHelp prints help for the given subcommand
func ShowSubcommandHelp(c *Context) error {
if c == nil {
return nil
}
if c.Command != nil {
return ShowCommandHelp(c, c.Command.Name)
}
return ShowCommandHelp(c, "")
}
// ShowVersion prints the version number of the App
func ShowVersion(c *Context) {
VersionPrinter(c)
}
func printVersion(c *Context) {
_, _ = fmt.Fprintf(c.App.Writer, "%v version %v\n", c.App.Name, c.App.Version)
}
// ShowCompletions prints the lists of commands within a given context
func ShowCompletions(c *Context) {
a := c.App
if a != nil && a.BashComplete != nil {
a.BashComplete(c)
}
}
// ShowCommandCompletions prints the custom completions for a given command
func ShowCommandCompletions(ctx *Context, command string) {
c := ctx.App.Command(command)
if c != nil {
if c.BashComplete != nil {
c.BashComplete(ctx)
} else {
DefaultCompleteWithFlags(c)(ctx)
}
}
}
// printHelpCustom is the default implementation of HelpPrinterCustom.
//
// The customFuncs map will be combined with a default template.FuncMap to
// allow using arbitrary functions in template rendering.
func printHelpCustom(out io.Writer, templ string, data interface{}, customFuncs map[string]interface{}) {
funcMap := template.FuncMap{
"join": strings.Join,
"indent": indent,
"nindent": nindent,
"trim": strings.TrimSpace,
}
for key, value := range customFuncs {
funcMap[key] = value
}
w := tabwriter.NewWriter(out, 1, 8, 2, ' ', 0)
t := template.Must(template.New("help").Funcs(funcMap).Parse(templ))
err := t.Execute(w, data)
if err != nil {
// If the writer is closed, t.Execute will fail, and there's nothing
// we can do to recover.
if os.Getenv("CLI_TEMPLATE_ERROR_DEBUG") != "" {
_, _ = fmt.Fprintf(ErrWriter, "CLI TEMPLATE ERROR: %#v\n", err)
}
return
}
_ = w.Flush()
}
func printHelp(out io.Writer, templ string, data interface{}) {
HelpPrinterCustom(out, templ, data, nil)
}
func checkVersion(c *Context) bool {
found := false
for _, name := range VersionFlag.Names() {
if c.Bool(name) {
found = true
}
}
return found
}
func checkHelp(c *Context) bool {
found := false
for _, name := range HelpFlag.Names() {
if c.Bool(name) {
found = true
}
}
return found
}
func checkCommandHelp(c *Context, name string) bool {
if c.Bool("h") || c.Bool("help") {
_ = ShowCommandHelp(c, name)
return true
}
return false
}
func checkSubcommandHelp(c *Context) bool {
if c.Bool("h") || c.Bool("help") {
_ = ShowSubcommandHelp(c)
return true
}
return false
}
func checkShellCompleteFlag(a *App, arguments []string) (bool, []string) {
if !a.EnableBashCompletion {
return false, arguments
}
pos := len(arguments) - 1
lastArg := arguments[pos]
if lastArg != "--generate-bash-completion" {
return false, arguments
}
return true, arguments[:pos]
}
func checkCompletions(c *Context) bool {
if !c.shellComplete {
return false
}
if args := c.Args(); args.Present() {
name := args.First()
if cmd := c.App.Command(name); cmd != nil {
// let the command handle the completion
return false
}
}
ShowCompletions(c)
return true
}
func checkCommandCompletions(c *Context, name string) bool {
if !c.shellComplete {
return false
}
ShowCommandCompletions(c, name)
return true
}
func indent(spaces int, v string) string {
pad := strings.Repeat(" ", spaces)
return pad + strings.Replace(v, "\n", "\n"+pad, -1)
}
func nindent(spaces int, v string) string {
return "\n" + indent(spaces, v)
}

94
vendor/github.com/urfave/cli/v2/parse.go generated vendored Normal file
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package cli
import (
"flag"
"strings"
)
type iterativeParser interface {
newFlagSet() (*flag.FlagSet, error)
useShortOptionHandling() bool
}
// To enable short-option handling (e.g., "-it" vs "-i -t") we have to
// iteratively catch parsing errors. This way we achieve LR parsing without
// transforming any arguments. Otherwise, there is no way we can discriminate
// combined short options from common arguments that should be left untouched.
// Pass `shellComplete` to continue parsing options on failure during shell
// completion when, the user-supplied options may be incomplete.
func parseIter(set *flag.FlagSet, ip iterativeParser, args []string, shellComplete bool) error {
for {
err := set.Parse(args)
if !ip.useShortOptionHandling() || err == nil {
if shellComplete {
return nil
}
return err
}
errStr := err.Error()
trimmed := strings.TrimPrefix(errStr, "flag provided but not defined: -")
if errStr == trimmed {
return err
}
// regenerate the initial args with the split short opts
argsWereSplit := false
for i, arg := range args {
// skip args that are not part of the error message
if name := strings.TrimLeft(arg, "-"); name != trimmed {
continue
}
// if we can't split, the error was accurate
shortOpts := splitShortOptions(set, arg)
if len(shortOpts) == 1 {
return err
}
// swap current argument with the split version
args = append(args[:i], append(shortOpts, args[i+1:]...)...)
argsWereSplit = true
break
}
// This should be an impossible to reach code path, but in case the arg
// splitting failed to happen, this will prevent infinite loops
if !argsWereSplit {
return err
}
// Since custom parsing failed, replace the flag set before retrying
newSet, err := ip.newFlagSet()
if err != nil {
return err
}
*set = *newSet
}
}
func splitShortOptions(set *flag.FlagSet, arg string) []string {
shortFlagsExist := func(s string) bool {
for _, c := range s[1:] {
if f := set.Lookup(string(c)); f == nil {
return false
}
}
return true
}
if !isSplittable(arg) || !shortFlagsExist(arg) {
return []string{arg}
}
separated := make([]string, 0, len(arg)-1)
for _, flagChar := range arg[1:] {
separated = append(separated, "-"+string(flagChar))
}
return separated
}
func isSplittable(flagArg string) bool {
return strings.HasPrefix(flagArg, "-") && !strings.HasPrefix(flagArg, "--") && len(flagArg) > 2
}

29
vendor/github.com/urfave/cli/v2/sort.go generated vendored Normal file
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package cli
import "unicode"
// lexicographicLess compares strings alphabetically considering case.
func lexicographicLess(i, j string) bool {
iRunes := []rune(i)
jRunes := []rune(j)
lenShared := len(iRunes)
if lenShared > len(jRunes) {
lenShared = len(jRunes)
}
for index := 0; index < lenShared; index++ {
ir := iRunes[index]
jr := jRunes[index]
if lir, ljr := unicode.ToLower(ir), unicode.ToLower(jr); lir != ljr {
return lir < ljr
}
if ir != jr {
return ir < jr
}
}
return i < j
}

122
vendor/github.com/urfave/cli/v2/template.go generated vendored Normal file
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@ -0,0 +1,122 @@
package cli
// AppHelpTemplate is the text template for the Default help topic.
// cli.go uses text/template to render templates. You can
// render custom help text by setting this variable.
var AppHelpTemplate = `NAME:
{{.Name}}{{if .Usage}} - {{.Usage}}{{end}}
USAGE:
{{if .UsageText}}{{.UsageText | nindent 3 | trim}}{{else}}{{.HelpName}} {{if .VisibleFlags}}[global options]{{end}}{{if .Commands}} command [command options]{{end}} {{if .ArgsUsage}}{{.ArgsUsage}}{{else}}[arguments...]{{end}}{{end}}{{if .Version}}{{if not .HideVersion}}
VERSION:
{{.Version}}{{end}}{{end}}{{if .Description}}
DESCRIPTION:
{{.Description | nindent 3 | trim}}{{end}}{{if len .Authors}}
AUTHOR{{with $length := len .Authors}}{{if ne 1 $length}}S{{end}}{{end}}:
{{range $index, $author := .Authors}}{{if $index}}
{{end}}{{$author}}{{end}}{{end}}{{if .VisibleCommands}}
COMMANDS:{{range .VisibleCategories}}{{if .Name}}
{{.Name}}:{{range .VisibleCommands}}
{{join .Names ", "}}{{"\t"}}{{.Usage}}{{end}}{{else}}{{range .VisibleCommands}}
{{join .Names ", "}}{{"\t"}}{{.Usage}}{{end}}{{end}}{{end}}{{end}}{{if .VisibleFlags}}
GLOBAL OPTIONS:
{{range $index, $option := .VisibleFlags}}{{if $index}}
{{end}}{{$option}}{{end}}{{end}}{{if .Copyright}}
COPYRIGHT:
{{.Copyright}}{{end}}
`
// CommandHelpTemplate is the text template for the command help topic.
// cli.go uses text/template to render templates. You can
// render custom help text by setting this variable.
var CommandHelpTemplate = `NAME:
{{.HelpName}} - {{.Usage}}
USAGE:
{{if .UsageText}}{{.UsageText | nindent 3 | trim}}{{else}}{{.HelpName}}{{if .VisibleFlags}} [command options]{{end}} {{if .ArgsUsage}}{{.ArgsUsage}}{{else}}[arguments...]{{end}}{{end}}{{if .Category}}
CATEGORY:
{{.Category}}{{end}}{{if .Description}}
DESCRIPTION:
{{.Description | nindent 3 | trim}}{{end}}{{if .VisibleFlags}}
OPTIONS:
{{range .VisibleFlags}}{{.}}
{{end}}{{end}}
`
// SubcommandHelpTemplate is the text template for the subcommand help topic.
// cli.go uses text/template to render templates. You can
// render custom help text by setting this variable.
var SubcommandHelpTemplate = `NAME:
{{.HelpName}} - {{.Usage}}
USAGE:
{{if .UsageText}}{{.UsageText | nindent 3 | trim}}{{else}}{{.HelpName}} command{{if .VisibleFlags}} [command options]{{end}} {{if .ArgsUsage}}{{.ArgsUsage}}{{else}}[arguments...]{{end}}{{end}}{{if .Description}}
DESCRIPTION:
{{.Description | nindent 3 | trim}}{{end}}
COMMANDS:{{range .VisibleCategories}}{{if .Name}}
{{.Name}}:{{range .VisibleCommands}}
{{join .Names ", "}}{{"\t"}}{{.Usage}}{{end}}{{else}}{{range .VisibleCommands}}
{{join .Names ", "}}{{"\t"}}{{.Usage}}{{end}}{{end}}{{end}}{{if .VisibleFlags}}
OPTIONS:
{{range .VisibleFlags}}{{.}}
{{end}}{{end}}
`
var MarkdownDocTemplate = `{{if gt .SectionNum 0}}% {{ .App.Name }} {{ .SectionNum }}
{{end}}# NAME
{{ .App.Name }}{{ if .App.Usage }} - {{ .App.Usage }}{{ end }}
# SYNOPSIS
{{ .App.Name }}
{{ if .SynopsisArgs }}
` + "```" + `
{{ range $v := .SynopsisArgs }}{{ $v }}{{ end }}` + "```" + `
{{ end }}{{ if .App.Description }}
# DESCRIPTION
{{ .App.Description }}
{{ end }}
**Usage**:
` + "```" + `{{ if .App.UsageText }}
{{ .App.UsageText }}
{{ else }}
{{ .App.Name }} [GLOBAL OPTIONS] command [COMMAND OPTIONS] [ARGUMENTS...]
{{ end }}` + "```" + `
{{ if .GlobalArgs }}
# GLOBAL OPTIONS
{{ range $v := .GlobalArgs }}
{{ $v }}{{ end }}
{{ end }}{{ if .Commands }}
# COMMANDS
{{ range $v := .Commands }}
{{ $v }}{{ end }}{{ end }}`
var FishCompletionTemplate = `# {{ .App.Name }} fish shell completion
function __fish_{{ .App.Name }}_no_subcommand --description 'Test if there has been any subcommand yet'
for i in (commandline -opc)
if contains -- $i{{ range $v := .AllCommands }} {{ $v }}{{ end }}
return 1
end
end
return 0
end
{{ range $v := .Completions }}{{ $v }}
{{ end }}`