2660 lines
83 KiB
Plaintext
2660 lines
83 KiB
Plaintext
package cli // import "github.com/urfave/cli/v2"
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Package cli provides a minimal framework for creating and organizing command
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line Go applications. cli is designed to be easy to understand and write,
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the most simple cli application can be written as follows:
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func main() {
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(&cli.App{}).Run(os.Args)
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}
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Of course this application does not do much, so let's make this an actual
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application:
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func main() {
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app := &cli.App{
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Name: "greet",
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Usage: "say a greeting",
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Action: func(c *cli.Context) error {
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fmt.Println("Greetings")
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return nil
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},
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}
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app.Run(os.Args)
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}
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VARIABLES
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var (
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SuggestFlag SuggestFlagFunc = suggestFlag
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SuggestCommand SuggestCommandFunc = suggestCommand
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SuggestDidYouMeanTemplate string = suggestDidYouMeanTemplate
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)
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var AppHelpTemplate = `NAME:
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{{template "helpNameTemplate" .}}
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USAGE:
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{{if .UsageText}}{{wrap .UsageText 3}}{{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}}
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VERSION:
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{{.Version}}{{end}}{{end}}{{if .Description}}
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DESCRIPTION:
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{{template "descriptionTemplate" .}}{{end}}
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{{- if len .Authors}}
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AUTHOR{{template "authorsTemplate" .}}{{end}}{{if .VisibleCommands}}
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COMMANDS:{{template "visibleCommandCategoryTemplate" .}}{{end}}{{if .VisibleFlagCategories}}
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GLOBAL OPTIONS:{{template "visibleFlagCategoryTemplate" .}}{{else if .VisibleFlags}}
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GLOBAL OPTIONS:{{template "visibleFlagTemplate" .}}{{end}}{{if .Copyright}}
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COPYRIGHT:
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{{template "copyrightTemplate" .}}{{end}}
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`
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AppHelpTemplate is the text template for the Default help topic. cli.go
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uses text/template to render templates. You can render custom help text by
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setting this variable.
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var CommandHelpTemplate = `NAME:
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{{template "helpNameTemplate" .}}
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USAGE:
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{{template "usageTemplate" .}}{{if .Category}}
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CATEGORY:
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{{.Category}}{{end}}{{if .Description}}
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DESCRIPTION:
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{{template "descriptionTemplate" .}}{{end}}{{if .VisibleFlagCategories}}
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OPTIONS:{{template "visibleFlagCategoryTemplate" .}}{{else if .VisibleFlags}}
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OPTIONS:{{template "visibleFlagTemplate" .}}{{end}}
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`
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CommandHelpTemplate is the text template for the command help topic. cli.go
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uses text/template to render templates. You can render custom help text by
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setting this variable.
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var ErrWriter io.Writer = os.Stderr
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ErrWriter is used to write errors to the user. This can be anything
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implementing the io.Writer interface and defaults to os.Stderr.
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var FishCompletionTemplate = `# {{ .App.Name }} fish shell completion
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function __fish_{{ .App.Name }}_no_subcommand --description 'Test if there has been any subcommand yet'
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for i in (commandline -opc)
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if contains -- $i{{ range $v := .AllCommands }} {{ $v }}{{ end }}
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return 1
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end
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end
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return 0
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end
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{{ range $v := .Completions }}{{ $v }}
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{{ end }}`
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var MarkdownDocTemplate = `{{if gt .SectionNum 0}}% {{ .App.Name }} {{ .SectionNum }}
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{{end}}# NAME
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{{ .App.Name }}{{ if .App.Usage }} - {{ .App.Usage }}{{ end }}
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# SYNOPSIS
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{{ .App.Name }}
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{{ if .SynopsisArgs }}
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` + "```" + `
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{{ range $v := .SynopsisArgs }}{{ $v }}{{ end }}` + "```" + `
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{{ end }}{{ if .App.Description }}
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# DESCRIPTION
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{{ .App.Description }}
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{{ end }}
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**Usage**:
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` + "```" + `{{ if .App.UsageText }}
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{{ .App.UsageText }}
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{{ else }}
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{{ .App.Name }} [GLOBAL OPTIONS] command [COMMAND OPTIONS] [ARGUMENTS...]
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{{ end }}` + "```" + `
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{{ if .GlobalArgs }}
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# GLOBAL OPTIONS
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{{ range $v := .GlobalArgs }}
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{{ $v }}{{ end }}
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{{ end }}{{ if .Commands }}
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# COMMANDS
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{{ range $v := .Commands }}
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{{ $v }}{{ end }}{{ end }}`
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var OsExiter = os.Exit
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OsExiter is the function used when the app exits. If not set defaults to
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os.Exit.
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var SubcommandHelpTemplate = `NAME:
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{{template "helpNameTemplate" .}}
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USAGE:
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{{if .UsageText}}{{wrap .UsageText 3}}{{else}}{{.HelpName}} {{if .VisibleFlags}}command [command options]{{end}} {{if .ArgsUsage}}{{.ArgsUsage}}{{else}}[arguments...]{{end}}{{end}}{{if .Description}}
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DESCRIPTION:
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{{template "descriptionTemplate" .}}{{end}}{{if .VisibleCommands}}
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COMMANDS:{{template "visibleCommandTemplate" .}}{{end}}{{if .VisibleFlagCategories}}
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OPTIONS:{{template "visibleFlagCategoryTemplate" .}}{{else if .VisibleFlags}}
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OPTIONS:{{template "visibleFlagTemplate" .}}{{end}}
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`
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SubcommandHelpTemplate is the text template for the subcommand help topic.
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cli.go uses text/template to render templates. You can render custom help
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text by setting this variable.
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var VersionPrinter = printVersion
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VersionPrinter prints the version for the App
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var HelpPrinter helpPrinter = printHelp
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HelpPrinter is a function that writes the help output. If not set
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explicitly, this calls HelpPrinterCustom using only the default template
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functions.
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If custom logic for printing help is required, this function can be
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overridden. If the ExtraInfo field is defined on an App, this function
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should not be modified, as HelpPrinterCustom will be used directly in order
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to capture the extra information.
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var HelpPrinterCustom helpPrinterCustom = printHelpCustom
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HelpPrinterCustom is a function that writes the help output. It is used as
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the default implementation of HelpPrinter, and may be called directly if the
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ExtraInfo field is set on an App.
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In the default implementation, if the customFuncs argument contains a
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"wrapAt" key, which is a function which takes no arguments and returns an
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int, this int value will be used to produce a "wrap" function used by the
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default template to wrap long lines.
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FUNCTIONS
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func DefaultAppComplete(cCtx *Context)
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DefaultAppComplete prints the list of subcommands as the default app
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completion method
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func DefaultCompleteWithFlags(cmd *Command) func(cCtx *Context)
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func FlagNames(name string, aliases []string) []string
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func HandleAction(action interface{}, cCtx *Context) (err error)
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HandleAction attempts to figure out which Action signature was used.
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If it's an ActionFunc or a func with the legacy signature for Action,
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the func is run!
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func HandleExitCoder(err error)
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HandleExitCoder handles errors implementing ExitCoder by printing their
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message and calling OsExiter with the given exit code.
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If the given error instead implements MultiError, each error will be checked
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for the ExitCoder interface, and OsExiter will be called with the last exit
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code found, or exit code 1 if no ExitCoder is found.
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This function is the default error-handling behavior for an App.
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func ShowAppHelp(cCtx *Context) error
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ShowAppHelp is an action that displays the help.
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func ShowAppHelpAndExit(c *Context, exitCode int)
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ShowAppHelpAndExit - Prints the list of subcommands for the app and exits
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with exit code.
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func ShowCommandCompletions(ctx *Context, command string)
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ShowCommandCompletions prints the custom completions for a given command
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func ShowCommandHelp(ctx *Context, command string) error
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ShowCommandHelp prints help for the given command
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func ShowCommandHelpAndExit(c *Context, command string, code int)
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ShowCommandHelpAndExit - exits with code after showing help
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func ShowCompletions(cCtx *Context)
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ShowCompletions prints the lists of commands within a given context
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func ShowSubcommandHelp(cCtx *Context) error
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ShowSubcommandHelp prints help for the given subcommand
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func ShowSubcommandHelpAndExit(c *Context, exitCode int)
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ShowSubcommandHelpAndExit - Prints help for the given subcommand and exits
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with exit code.
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func ShowVersion(cCtx *Context)
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ShowVersion prints the version number of the App
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TYPES
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type ActionFunc func(*Context) error
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ActionFunc is the action to execute when no subcommands are specified
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type ActionableFlag interface {
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Flag
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RunAction(*Context) error
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}
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ActionableFlag is an interface that wraps Flag interface and RunAction
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operation.
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type AfterFunc func(*Context) error
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AfterFunc is an action to execute after any subcommands are run, but after
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the subcommand has finished it is run even if Action() panics
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type App struct {
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// The name of the program. Defaults to path.Base(os.Args[0])
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Name string
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// Full name of command for help, defaults to Name
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HelpName string
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// Description of the program.
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Usage string
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// Text to override the USAGE section of help
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UsageText string
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// Description of the program argument format.
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ArgsUsage string
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// Version of the program
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Version string
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// Description of the program
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Description string
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// DefaultCommand is the (optional) name of a command
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// to run if no command names are passed as CLI arguments.
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DefaultCommand string
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// List of commands to execute
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Commands []*Command
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// List of flags to parse
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Flags []Flag
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// Boolean to enable bash completion commands
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EnableBashCompletion bool
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// Boolean to hide built-in help command and help flag
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HideHelp bool
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// Boolean to hide built-in help command but keep help flag.
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// Ignored if HideHelp is true.
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HideHelpCommand bool
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// Boolean to hide built-in version flag and the VERSION section of help
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HideVersion bool
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// An action to execute when the shell completion flag is set
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BashComplete BashCompleteFunc
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// An action to execute before any subcommands are run, but after the context is ready
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// If a non-nil error is returned, no subcommands are run
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Before BeforeFunc
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// An action to execute after any subcommands are run, but after the subcommand has finished
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// It is run even if Action() panics
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After AfterFunc
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// The action to execute when no subcommands are specified
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Action ActionFunc
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// Execute this function if the proper command cannot be found
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CommandNotFound CommandNotFoundFunc
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// Execute this function if a usage error occurs
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OnUsageError OnUsageErrorFunc
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// Execute this function when an invalid flag is accessed from the context
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InvalidFlagAccessHandler InvalidFlagAccessFunc
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// Compilation date
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Compiled time.Time
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// List of all authors who contributed
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Authors []*Author
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// Copyright of the binary if any
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Copyright string
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// Reader reader to write input to (useful for tests)
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Reader io.Reader
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// Writer writer to write output to
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Writer io.Writer
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// ErrWriter writes error output
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ErrWriter io.Writer
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// ExitErrHandler processes any error encountered while running an App before
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// it is returned to the caller. If no function is provided, HandleExitCoder
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// is used as the default behavior.
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ExitErrHandler ExitErrHandlerFunc
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// Other custom info
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Metadata map[string]interface{}
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// Carries a function which returns app specific info.
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ExtraInfo func() map[string]string
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// CustomAppHelpTemplate the text template for app help topic.
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// cli.go uses text/template to render templates. You can
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// render custom help text by setting this variable.
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CustomAppHelpTemplate string
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// SliceFlagSeparator is used to customize the separator for SliceFlag, the default is ","
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SliceFlagSeparator string
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// DisableSliceFlagSeparator is used to disable SliceFlagSeparator, the default is false
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DisableSliceFlagSeparator bool
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// Boolean to enable short-option handling so user can combine several
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// single-character bool arguments into one
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// i.e. foobar -o -v -> foobar -ov
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UseShortOptionHandling bool
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// Enable suggestions for commands and flags
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Suggest bool
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// Allows global flags set by libraries which use flag.XXXVar(...) directly
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// to be parsed through this library
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AllowExtFlags bool
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// Treat all flags as normal arguments if true
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SkipFlagParsing bool
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// Has unexported fields.
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}
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App is the main structure of a cli application. It is recommended that an
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app be created with the cli.NewApp() function
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func NewApp() *App
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NewApp creates a new cli Application with some reasonable defaults for Name,
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Usage, Version and Action.
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func (a *App) Command(name string) *Command
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Command returns the named command on App. Returns nil if the command does
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not exist
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func (a *App) Run(arguments []string) (err error)
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Run is the entry point to the cli app. Parses the arguments slice and routes
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to the proper flag/args combination
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func (a *App) RunAndExitOnError()
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RunAndExitOnError calls .Run() and exits non-zero if an error was returned
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Deprecated: instead you should return an error that fulfills cli.ExitCoder
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to cli.App.Run. This will cause the application to exit with the given error
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code in the cli.ExitCoder
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func (a *App) RunAsSubcommand(ctx *Context) (err error)
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This is a stub function to keep public API unchanged from old code
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Deprecated: use App.Run or App.RunContext
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func (a *App) RunContext(ctx context.Context, arguments []string) (err error)
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RunContext is like Run except it takes a Context that will be passed to
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its commands and sub-commands. Through this, you can propagate timeouts and
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cancellation requests
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func (a *App) Setup()
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Setup runs initialization code to ensure all data structures are ready
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for `Run` or inspection prior to `Run`. It is internally called by `Run`,
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but will return early if setup has already happened.
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func (a *App) ToFishCompletion() (string, error)
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ToFishCompletion creates a fish completion string for the `*App` The
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function errors if either parsing or writing of the string fails.
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func (a *App) ToMan() (string, error)
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ToMan creates a man page string for the `*App` The function errors if either
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parsing or writing of the string fails.
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func (a *App) ToManWithSection(sectionNumber int) (string, error)
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ToMan creates a man page string with section number for the `*App` The
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function errors if either parsing or writing of the string fails.
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func (a *App) ToMarkdown() (string, error)
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ToMarkdown creates a markdown string for the `*App` The function errors if
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either parsing or writing of the string fails.
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func (a *App) VisibleCategories() []CommandCategory
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VisibleCategories returns a slice of categories and commands that are
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Hidden=false
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func (a *App) VisibleCommands() []*Command
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VisibleCommands returns a slice of the Commands with Hidden=false
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func (a *App) VisibleFlagCategories() []VisibleFlagCategory
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VisibleFlagCategories returns a slice containing all the categories with the
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flags they contain
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func (a *App) VisibleFlags() []Flag
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VisibleFlags returns a slice of the Flags with Hidden=false
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type Args interface {
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// Get returns the nth argument, or else a blank string
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Get(n int) string
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// First returns the first argument, or else a blank string
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First() string
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// Tail returns the rest of the arguments (not the first one)
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// or else an empty string slice
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Tail() []string
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// Len returns the length of the wrapped slice
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Len() int
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// Present checks if there are any arguments present
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Present() bool
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// Slice returns a copy of the internal slice
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Slice() []string
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}
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type Author struct {
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Name string // The Authors name
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Email string // The Authors email
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}
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Author represents someone who has contributed to a cli project.
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func (a *Author) String() string
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String makes Author comply to the Stringer interface, to allow an easy print
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in the templating process
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type BashCompleteFunc func(*Context)
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BashCompleteFunc is an action to execute when the shell completion flag is
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set
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type BeforeFunc func(*Context) error
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BeforeFunc is an action to execute before any subcommands are run, but after
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the context is ready if a non-nil error is returned, no subcommands are run
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type BoolFlag struct {
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Name string
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Category string
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DefaultText string
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FilePath string
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Usage string
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Required bool
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Hidden bool
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HasBeenSet bool
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Value bool
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Destination *bool
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Aliases []string
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EnvVars []string
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Count *int
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Action func(*Context, bool) error
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// Has unexported fields.
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}
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BoolFlag is a flag with type bool
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func (f *BoolFlag) Apply(set *flag.FlagSet) error
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Apply populates the flag given the flag set and environment
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func (f *BoolFlag) Get(ctx *Context) bool
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Get returns the flag’s value in the given Context.
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func (f *BoolFlag) GetCategory() string
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GetCategory returns the category for the flag
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func (f *BoolFlag) GetDefaultText() string
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GetDefaultText returns the default text for this flag
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func (f *BoolFlag) GetEnvVars() []string
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GetEnvVars returns the env vars for this flag
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func (f *BoolFlag) GetUsage() string
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GetUsage returns the usage string for the flag
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func (f *BoolFlag) GetValue() string
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GetValue returns the flags value as string representation and an empty
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string if the flag takes no value at all.
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func (f *BoolFlag) IsRequired() bool
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IsRequired returns whether or not the flag is required
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func (f *BoolFlag) IsSet() bool
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IsSet returns whether or not the flag has been set through env or file
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func (f *BoolFlag) IsVisible() bool
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IsVisible returns true if the flag is not hidden, otherwise false
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func (f *BoolFlag) Names() []string
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Names returns the names of the flag
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func (f *BoolFlag) RunAction(c *Context) error
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RunAction executes flag action if set
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func (f *BoolFlag) String() string
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String returns a readable representation of this value (for usage defaults)
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func (f *BoolFlag) TakesValue() bool
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TakesValue returns true of the flag takes a value, otherwise false
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type CategorizableFlag interface {
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VisibleFlag
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GetCategory() string
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}
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CategorizableFlag is an interface that allows us to potentially use a flag
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in a categorized representation.
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type Command struct {
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// The name of the command
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Name string
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// A list of aliases for the command
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Aliases []string
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// A short description of the usage of this command
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Usage string
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// Custom text to show on USAGE section of help
|
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UsageText string
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// A longer explanation of how the command works
|
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Description string
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// A short description of the arguments of this command
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ArgsUsage string
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// The category the command is part of
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Category string
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// The function to call when checking for bash command completions
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BashComplete BashCompleteFunc
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// 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
|
||
|
||
// 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
|
||
|
||
// Has unexported fields.
|
||
}
|
||
Command is a subcommand for a cli.App.
|
||
|
||
func (cmd *Command) Command(name string) *Command
|
||
|
||
func (c *Command) FullName() string
|
||
FullName returns the full name of the command. For subcommands this ensures
|
||
that parent commands are part of the command path
|
||
|
||
func (c *Command) HasName(name string) bool
|
||
HasName returns true if Command.Name matches given name
|
||
|
||
func (c *Command) Names() []string
|
||
Names returns the names including short names and aliases.
|
||
|
||
func (c *Command) Run(cCtx *Context, arguments ...string) (err error)
|
||
|
||
func (c *Command) VisibleCategories() []CommandCategory
|
||
VisibleCategories returns a slice of categories and commands that are
|
||
Hidden=false
|
||
|
||
func (c *Command) VisibleCommands() []*Command
|
||
VisibleCommands returns a slice of the Commands with Hidden=false
|
||
|
||
func (c *Command) VisibleFlagCategories() []VisibleFlagCategory
|
||
VisibleFlagCategories returns a slice containing all the visible flag
|
||
categories with the flags they contain
|
||
|
||
func (c *Command) VisibleFlags() []Flag
|
||
VisibleFlags returns a slice of the Flags with Hidden=false
|
||
|
||
type CommandCategories interface {
|
||
// AddCommand adds a command to a category, creating a new category if necessary.
|
||
AddCommand(category string, command *Command)
|
||
// Categories returns a slice of categories sorted by name
|
||
Categories() []CommandCategory
|
||
}
|
||
CommandCategories interface allows for category manipulation
|
||
|
||
type CommandCategory interface {
|
||
// Name returns the category name string
|
||
Name() string
|
||
// VisibleCommands returns a slice of the Commands with Hidden=false
|
||
VisibleCommands() []*Command
|
||
}
|
||
CommandCategory is a category containing commands.
|
||
|
||
type CommandNotFoundFunc func(*Context, string)
|
||
CommandNotFoundFunc is executed if the proper command cannot be found
|
||
|
||
type Commands []*Command
|
||
|
||
type CommandsByName []*Command
|
||
|
||
func (c CommandsByName) Len() int
|
||
|
||
func (c CommandsByName) Less(i, j int) bool
|
||
|
||
func (c CommandsByName) Swap(i, j int)
|
||
|
||
type Context struct {
|
||
context.Context
|
||
App *App
|
||
Command *Command
|
||
|
||
// Has unexported fields.
|
||
}
|
||
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.
|
||
|
||
func NewContext(app *App, set *flag.FlagSet, parentCtx *Context) *Context
|
||
NewContext creates a new context. For use in when invoking an App or Command
|
||
action.
|
||
|
||
func (cCtx *Context) Args() Args
|
||
Args returns the command line arguments associated with the context.
|
||
|
||
func (cCtx *Context) Bool(name string) bool
|
||
Bool looks up the value of a local BoolFlag, returns false if not found
|
||
|
||
func (cCtx *Context) Count(name string) int
|
||
Count returns the num of occurences of this flag
|
||
|
||
func (cCtx *Context) Duration(name string) time.Duration
|
||
Duration looks up the value of a local DurationFlag, returns 0 if not found
|
||
|
||
func (cCtx *Context) FlagNames() []string
|
||
FlagNames returns a slice of flag names used by the this context and all of
|
||
its parent contexts.
|
||
|
||
func (cCtx *Context) Float64(name string) float64
|
||
Float64 looks up the value of a local Float64Flag, returns 0 if not found
|
||
|
||
func (cCtx *Context) Float64Slice(name string) []float64
|
||
Float64Slice looks up the value of a local Float64SliceFlag, returns nil if
|
||
not found
|
||
|
||
func (cCtx *Context) Generic(name string) interface{}
|
||
Generic looks up the value of a local GenericFlag, returns nil if not found
|
||
|
||
func (cCtx *Context) Int(name string) int
|
||
Int looks up the value of a local IntFlag, returns 0 if not found
|
||
|
||
func (cCtx *Context) Int64(name string) int64
|
||
Int64 looks up the value of a local Int64Flag, returns 0 if not found
|
||
|
||
func (cCtx *Context) Int64Slice(name string) []int64
|
||
Int64Slice looks up the value of a local Int64SliceFlag, returns nil if not
|
||
found
|
||
|
||
func (cCtx *Context) IntSlice(name string) []int
|
||
IntSlice looks up the value of a local IntSliceFlag, returns nil if not
|
||
found
|
||
|
||
func (cCtx *Context) IsSet(name string) bool
|
||
IsSet determines if the flag was actually set
|
||
|
||
func (cCtx *Context) Lineage() []*Context
|
||
Lineage returns *this* context and all of its ancestor contexts in order
|
||
from child to parent
|
||
|
||
func (cCtx *Context) LocalFlagNames() []string
|
||
LocalFlagNames returns a slice of flag names used in this context.
|
||
|
||
func (cCtx *Context) NArg() int
|
||
NArg returns the number of the command line arguments.
|
||
|
||
func (cCtx *Context) NumFlags() int
|
||
NumFlags returns the number of flags set
|
||
|
||
func (cCtx *Context) Path(name string) string
|
||
Path looks up the value of a local PathFlag, returns "" if not found
|
||
|
||
func (cCtx *Context) Set(name, value string) error
|
||
Set sets a context flag to a value.
|
||
|
||
func (cCtx *Context) String(name string) string
|
||
String looks up the value of a local StringFlag, returns "" if not found
|
||
|
||
func (cCtx *Context) StringSlice(name string) []string
|
||
StringSlice looks up the value of a local StringSliceFlag, returns nil if
|
||
not found
|
||
|
||
func (cCtx *Context) Timestamp(name string) *time.Time
|
||
Timestamp gets the timestamp from a flag name
|
||
|
||
func (cCtx *Context) Uint(name string) uint
|
||
Uint looks up the value of a local UintFlag, returns 0 if not found
|
||
|
||
func (cCtx *Context) Uint64(name string) uint64
|
||
Uint64 looks up the value of a local Uint64Flag, returns 0 if not found
|
||
|
||
func (cCtx *Context) Uint64Slice(name string) []uint64
|
||
Uint64Slice looks up the value of a local Uint64SliceFlag, returns nil if
|
||
not found
|
||
|
||
func (cCtx *Context) UintSlice(name string) []uint
|
||
UintSlice looks up the value of a local UintSliceFlag, returns nil if not
|
||
found
|
||
|
||
func (cCtx *Context) Value(name string) interface{}
|
||
Value returns the value of the flag corresponding to `name`
|
||
|
||
type Countable interface {
|
||
Count() int
|
||
}
|
||
Countable is an interface to enable detection of flag values which support
|
||
repetitive flags
|
||
|
||
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
|
||
|
||
// GetDefaultText returns the default text for this flag
|
||
GetDefaultText() string
|
||
|
||
// GetEnvVars returns the env vars for this flag
|
||
GetEnvVars() []string
|
||
}
|
||
DocGenerationFlag is an interface that allows documentation generation for
|
||
the flag
|
||
|
||
type DocGenerationSliceFlag interface {
|
||
DocGenerationFlag
|
||
|
||
// IsSliceFlag returns true for flags that can be given multiple times.
|
||
IsSliceFlag() bool
|
||
}
|
||
DocGenerationSliceFlag extends DocGenerationFlag for slice-based flags.
|
||
|
||
type DurationFlag struct {
|
||
Name string
|
||
|
||
Category string
|
||
DefaultText string
|
||
FilePath string
|
||
Usage string
|
||
|
||
Required bool
|
||
Hidden bool
|
||
HasBeenSet bool
|
||
|
||
Value time.Duration
|
||
Destination *time.Duration
|
||
|
||
Aliases []string
|
||
EnvVars []string
|
||
|
||
Action func(*Context, time.Duration) error
|
||
// Has unexported fields.
|
||
}
|
||
DurationFlag is a flag with type time.Duration
|
||
|
||
func (f *DurationFlag) Apply(set *flag.FlagSet) error
|
||
Apply populates the flag given the flag set and environment
|
||
|
||
func (f *DurationFlag) Get(ctx *Context) time.Duration
|
||
Get returns the flag’s value in the given Context.
|
||
|
||
func (f *DurationFlag) GetCategory() string
|
||
GetCategory returns the category for the flag
|
||
|
||
func (f *DurationFlag) GetDefaultText() string
|
||
GetDefaultText returns the default text for this flag
|
||
|
||
func (f *DurationFlag) GetEnvVars() []string
|
||
GetEnvVars returns the env vars for this flag
|
||
|
||
func (f *DurationFlag) GetUsage() string
|
||
GetUsage returns the usage string for the flag
|
||
|
||
func (f *DurationFlag) GetValue() string
|
||
GetValue returns the flags value as string representation and an empty
|
||
string if the flag takes no value at all.
|
||
|
||
func (f *DurationFlag) IsRequired() bool
|
||
IsRequired returns whether or not the flag is required
|
||
|
||
func (f *DurationFlag) IsSet() bool
|
||
IsSet returns whether or not the flag has been set through env or file
|
||
|
||
func (f *DurationFlag) IsVisible() bool
|
||
IsVisible returns true if the flag is not hidden, otherwise false
|
||
|
||
func (f *DurationFlag) Names() []string
|
||
Names returns the names of the flag
|
||
|
||
func (f *DurationFlag) RunAction(c *Context) error
|
||
RunAction executes flag action if set
|
||
|
||
func (f *DurationFlag) String() string
|
||
String returns a readable representation of this value (for usage defaults)
|
||
|
||
func (f *DurationFlag) TakesValue() bool
|
||
TakesValue returns true of the flag takes a value, otherwise false
|
||
|
||
type ErrorFormatter interface {
|
||
Format(s fmt.State, verb rune)
|
||
}
|
||
ErrorFormatter is the interface that will suitably format the error output
|
||
|
||
type ExitCoder interface {
|
||
error
|
||
ExitCode() int
|
||
}
|
||
ExitCoder is the interface checked by `App` and `Command` for a custom exit
|
||
code
|
||
|
||
func Exit(message interface{}, exitCode int) ExitCoder
|
||
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 overriding the ExitErrHandler function on an App or the
|
||
package-global OsExiter function.
|
||
|
||
func NewExitError(message interface{}, exitCode int) ExitCoder
|
||
NewExitError calls Exit to create a new ExitCoder.
|
||
|
||
Deprecated: This function is a duplicate of Exit and will eventually be
|
||
removed.
|
||
|
||
type ExitErrHandlerFunc func(cCtx *Context, err error)
|
||
ExitErrHandlerFunc is executed if provided in order to handle exitError
|
||
values returned by Actions and Before/After functions.
|
||
|
||
type Flag interface {
|
||
fmt.Stringer
|
||
// Apply Flag settings to the given flag set
|
||
Apply(*flag.FlagSet) error
|
||
Names() []string
|
||
IsSet() bool
|
||
}
|
||
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.
|
||
|
||
var BashCompletionFlag Flag = &BoolFlag{
|
||
Name: "generate-bash-completion",
|
||
Hidden: true,
|
||
}
|
||
BashCompletionFlag enables bash-completion for all commands and subcommands
|
||
|
||
var HelpFlag Flag = &BoolFlag{
|
||
Name: "help",
|
||
Aliases: []string{"h"},
|
||
Usage: "show help",
|
||
}
|
||
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 VersionFlag Flag = &BoolFlag{
|
||
Name: "version",
|
||
Aliases: []string{"v"},
|
||
Usage: "print the version",
|
||
}
|
||
VersionFlag prints the version for the application
|
||
|
||
type FlagCategories interface {
|
||
// AddFlags adds a flag to a category, creating a new category if necessary.
|
||
AddFlag(category string, fl Flag)
|
||
// VisibleCategories returns a slice of visible flag categories sorted by name
|
||
VisibleCategories() []VisibleFlagCategory
|
||
}
|
||
FlagCategories interface allows for category manipulation
|
||
|
||
type FlagEnvHintFunc func(envVars []string, str string) string
|
||
FlagEnvHintFunc is used by the default FlagStringFunc to annotate flag help
|
||
with the environment variable details.
|
||
|
||
var FlagEnvHinter FlagEnvHintFunc = withEnvHint
|
||
FlagEnvHinter annotates flag help message with the environment variable
|
||
details. This is used by the default FlagStringer.
|
||
|
||
type FlagFileHintFunc func(filePath, str string) string
|
||
FlagFileHintFunc is used by the default FlagStringFunc to annotate flag help
|
||
with the file path details.
|
||
|
||
var FlagFileHinter FlagFileHintFunc = withFileHint
|
||
FlagFileHinter annotates flag help message with the environment variable
|
||
details. This is used by the default FlagStringer.
|
||
|
||
type FlagNamePrefixFunc func(fullName []string, placeholder string) string
|
||
FlagNamePrefixFunc is used by the default FlagStringFunc to create prefix
|
||
text for a flag's full name.
|
||
|
||
var FlagNamePrefixer FlagNamePrefixFunc = prefixedNames
|
||
FlagNamePrefixer converts a full flag name and its placeholder into the help
|
||
message flag prefix. This is used by the default FlagStringer.
|
||
|
||
type FlagStringFunc func(Flag) string
|
||
FlagStringFunc is used by the help generation to display a flag, which is
|
||
expected to be a single line.
|
||
|
||
var FlagStringer FlagStringFunc = stringifyFlag
|
||
FlagStringer converts a flag definition to a string. This is used by help to
|
||
display a flag.
|
||
|
||
type FlagsByName []Flag
|
||
FlagsByName is a slice of Flag.
|
||
|
||
func (f FlagsByName) Len() int
|
||
|
||
func (f FlagsByName) Less(i, j int) bool
|
||
|
||
func (f FlagsByName) Swap(i, j int)
|
||
|
||
type Float64Flag struct {
|
||
Name string
|
||
|
||
Category string
|
||
DefaultText string
|
||
FilePath string
|
||
Usage string
|
||
|
||
Required bool
|
||
Hidden bool
|
||
HasBeenSet bool
|
||
|
||
Value float64
|
||
Destination *float64
|
||
|
||
Aliases []string
|
||
EnvVars []string
|
||
|
||
Action func(*Context, float64) error
|
||
// Has unexported fields.
|
||
}
|
||
Float64Flag is a flag with type float64
|
||
|
||
func (f *Float64Flag) Apply(set *flag.FlagSet) error
|
||
Apply populates the flag given the flag set and environment
|
||
|
||
func (f *Float64Flag) Get(ctx *Context) float64
|
||
Get returns the flag’s value in the given Context.
|
||
|
||
func (f *Float64Flag) GetCategory() string
|
||
GetCategory returns the category for the flag
|
||
|
||
func (f *Float64Flag) GetDefaultText() string
|
||
GetDefaultText returns the default text for this flag
|
||
|
||
func (f *Float64Flag) GetEnvVars() []string
|
||
GetEnvVars returns the env vars for this flag
|
||
|
||
func (f *Float64Flag) GetUsage() string
|
||
GetUsage returns the usage string for the flag
|
||
|
||
func (f *Float64Flag) GetValue() string
|
||
GetValue returns the flags value as string representation and an empty
|
||
string if the flag takes no value at all.
|
||
|
||
func (f *Float64Flag) IsRequired() bool
|
||
IsRequired returns whether or not the flag is required
|
||
|
||
func (f *Float64Flag) IsSet() bool
|
||
IsSet returns whether or not the flag has been set through env or file
|
||
|
||
func (f *Float64Flag) IsVisible() bool
|
||
IsVisible returns true if the flag is not hidden, otherwise false
|
||
|
||
func (f *Float64Flag) Names() []string
|
||
Names returns the names of the flag
|
||
|
||
func (f *Float64Flag) RunAction(c *Context) error
|
||
RunAction executes flag action if set
|
||
|
||
func (f *Float64Flag) String() string
|
||
String returns a readable representation of this value (for usage defaults)
|
||
|
||
func (f *Float64Flag) TakesValue() bool
|
||
TakesValue returns true of the flag takes a value, otherwise false
|
||
|
||
type Float64Slice struct {
|
||
// Has unexported fields.
|
||
}
|
||
Float64Slice wraps []float64 to satisfy flag.Value
|
||
|
||
func NewFloat64Slice(defaults ...float64) *Float64Slice
|
||
NewFloat64Slice makes a *Float64Slice with default values
|
||
|
||
func (f *Float64Slice) Get() interface{}
|
||
Get returns the slice of float64s set by this flag
|
||
|
||
func (f *Float64Slice) Serialize() string
|
||
Serialize allows Float64Slice to fulfill Serializer
|
||
|
||
func (f *Float64Slice) Set(value string) error
|
||
Set parses the value into a float64 and appends it to the list of values
|
||
|
||
func (f *Float64Slice) String() string
|
||
String returns a readable representation of this value (for usage defaults)
|
||
|
||
func (f *Float64Slice) Value() []float64
|
||
Value returns the slice of float64s set by this flag
|
||
|
||
type Float64SliceFlag struct {
|
||
Name string
|
||
|
||
Category string
|
||
DefaultText string
|
||
FilePath string
|
||
Usage string
|
||
|
||
Required bool
|
||
Hidden bool
|
||
HasBeenSet bool
|
||
|
||
Value *Float64Slice
|
||
Destination *Float64Slice
|
||
|
||
Aliases []string
|
||
EnvVars []string
|
||
|
||
Action func(*Context, []float64) error
|
||
// Has unexported fields.
|
||
}
|
||
Float64SliceFlag is a flag with type *Float64Slice
|
||
|
||
func (f *Float64SliceFlag) Apply(set *flag.FlagSet) error
|
||
Apply populates the flag given the flag set and environment
|
||
|
||
func (f *Float64SliceFlag) Get(ctx *Context) []float64
|
||
Get returns the flag’s value in the given Context.
|
||
|
||
func (f *Float64SliceFlag) GetCategory() string
|
||
GetCategory returns the category for the flag
|
||
|
||
func (f *Float64SliceFlag) GetDefaultText() string
|
||
GetDefaultText returns the default text for this flag
|
||
|
||
func (f *Float64SliceFlag) GetDestination() []float64
|
||
|
||
func (f *Float64SliceFlag) GetEnvVars() []string
|
||
GetEnvVars returns the env vars for this flag
|
||
|
||
func (f *Float64SliceFlag) GetUsage() string
|
||
GetUsage returns the usage string for the flag
|
||
|
||
func (f *Float64SliceFlag) GetValue() string
|
||
GetValue returns the flags value as string representation and an empty
|
||
string if the flag takes no value at all.
|
||
|
||
func (f *Float64SliceFlag) IsRequired() bool
|
||
IsRequired returns whether or not the flag is required
|
||
|
||
func (f *Float64SliceFlag) IsSet() bool
|
||
IsSet returns whether or not the flag has been set through env or file
|
||
|
||
func (f *Float64SliceFlag) IsSliceFlag() bool
|
||
IsSliceFlag implements DocGenerationSliceFlag.
|
||
|
||
func (f *Float64SliceFlag) IsVisible() bool
|
||
IsVisible returns true if the flag is not hidden, otherwise false
|
||
|
||
func (f *Float64SliceFlag) Names() []string
|
||
Names returns the names of the flag
|
||
|
||
func (f *Float64SliceFlag) RunAction(c *Context) error
|
||
RunAction executes flag action if set
|
||
|
||
func (f *Float64SliceFlag) SetDestination(slice []float64)
|
||
|
||
func (f *Float64SliceFlag) SetValue(slice []float64)
|
||
|
||
func (f *Float64SliceFlag) String() string
|
||
String returns a readable representation of this value (for usage defaults)
|
||
|
||
func (f *Float64SliceFlag) TakesValue() bool
|
||
TakesValue returns true if the flag takes a value, otherwise false
|
||
|
||
type Generic interface {
|
||
Set(value string) error
|
||
String() string
|
||
}
|
||
Generic is a generic parseable type identified by a specific flag
|
||
|
||
type GenericFlag struct {
|
||
Name string
|
||
|
||
Category string
|
||
DefaultText string
|
||
FilePath string
|
||
Usage string
|
||
|
||
Required bool
|
||
Hidden bool
|
||
HasBeenSet bool
|
||
|
||
Value Generic
|
||
Destination Generic
|
||
|
||
Aliases []string
|
||
EnvVars []string
|
||
|
||
TakesFile bool
|
||
|
||
Action func(*Context, interface{}) error
|
||
// Has unexported fields.
|
||
}
|
||
GenericFlag is a flag with type Generic
|
||
|
||
func (f *GenericFlag) Apply(set *flag.FlagSet) error
|
||
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) Get(ctx *Context) interface{}
|
||
Get returns the flag’s value in the given Context.
|
||
|
||
func (f *GenericFlag) GetCategory() string
|
||
GetCategory returns the category for the flag
|
||
|
||
func (f *GenericFlag) GetDefaultText() string
|
||
GetDefaultText returns the default text for this flag
|
||
|
||
func (f *GenericFlag) GetEnvVars() []string
|
||
GetEnvVars returns the env vars for this flag
|
||
|
||
func (f *GenericFlag) GetUsage() string
|
||
GetUsage returns the usage string for the flag
|
||
|
||
func (f *GenericFlag) GetValue() string
|
||
GetValue returns the flags value as string representation and an empty
|
||
string if the flag takes no value at all.
|
||
|
||
func (f *GenericFlag) IsRequired() bool
|
||
IsRequired returns whether or not the flag is required
|
||
|
||
func (f *GenericFlag) IsSet() bool
|
||
IsSet returns whether or not the flag has been set through env or file
|
||
|
||
func (f *GenericFlag) IsVisible() bool
|
||
IsVisible returns true if the flag is not hidden, otherwise false
|
||
|
||
func (f *GenericFlag) Names() []string
|
||
Names returns the names of the flag
|
||
|
||
func (f *GenericFlag) RunAction(c *Context) error
|
||
RunAction executes flag action if set
|
||
|
||
func (f *GenericFlag) String() string
|
||
String returns a readable representation of this value (for usage defaults)
|
||
|
||
func (f *GenericFlag) TakesValue() bool
|
||
TakesValue returns true of the flag takes a value, otherwise false
|
||
|
||
type Int64Flag struct {
|
||
Name string
|
||
|
||
Category string
|
||
DefaultText string
|
||
FilePath string
|
||
Usage string
|
||
|
||
Required bool
|
||
Hidden bool
|
||
HasBeenSet bool
|
||
|
||
Value int64
|
||
Destination *int64
|
||
|
||
Aliases []string
|
||
EnvVars []string
|
||
|
||
Base int
|
||
|
||
Action func(*Context, int64) error
|
||
// Has unexported fields.
|
||
}
|
||
Int64Flag is a flag with type int64
|
||
|
||
func (f *Int64Flag) Apply(set *flag.FlagSet) error
|
||
Apply populates the flag given the flag set and environment
|
||
|
||
func (f *Int64Flag) Get(ctx *Context) int64
|
||
Get returns the flag’s value in the given Context.
|
||
|
||
func (f *Int64Flag) GetCategory() string
|
||
GetCategory returns the category for the flag
|
||
|
||
func (f *Int64Flag) GetDefaultText() string
|
||
GetDefaultText returns the default text for this flag
|
||
|
||
func (f *Int64Flag) GetEnvVars() []string
|
||
GetEnvVars returns the env vars for this flag
|
||
|
||
func (f *Int64Flag) GetUsage() string
|
||
GetUsage returns the usage string for the flag
|
||
|
||
func (f *Int64Flag) GetValue() string
|
||
GetValue returns the flags value as string representation and an empty
|
||
string if the flag takes no value at all.
|
||
|
||
func (f *Int64Flag) IsRequired() bool
|
||
IsRequired returns whether or not the flag is required
|
||
|
||
func (f *Int64Flag) IsSet() bool
|
||
IsSet returns whether or not the flag has been set through env or file
|
||
|
||
func (f *Int64Flag) IsVisible() bool
|
||
IsVisible returns true if the flag is not hidden, otherwise false
|
||
|
||
func (f *Int64Flag) Names() []string
|
||
Names returns the names of the flag
|
||
|
||
func (f *Int64Flag) RunAction(c *Context) error
|
||
RunAction executes flag action if set
|
||
|
||
func (f *Int64Flag) String() string
|
||
String returns a readable representation of this value (for usage defaults)
|
||
|
||
func (f *Int64Flag) TakesValue() bool
|
||
TakesValue returns true of the flag takes a value, otherwise false
|
||
|
||
type Int64Slice struct {
|
||
// Has unexported fields.
|
||
}
|
||
Int64Slice wraps []int64 to satisfy flag.Value
|
||
|
||
func NewInt64Slice(defaults ...int64) *Int64Slice
|
||
NewInt64Slice makes an *Int64Slice with default values
|
||
|
||
func (i *Int64Slice) Get() interface{}
|
||
Get returns the slice of ints set by this flag
|
||
|
||
func (i *Int64Slice) Serialize() string
|
||
Serialize allows Int64Slice to fulfill Serializer
|
||
|
||
func (i *Int64Slice) Set(value string) error
|
||
Set parses the value into an integer and appends it to the list of values
|
||
|
||
func (i *Int64Slice) String() string
|
||
String returns a readable representation of this value (for usage defaults)
|
||
|
||
func (i *Int64Slice) Value() []int64
|
||
Value returns the slice of ints set by this flag
|
||
|
||
type Int64SliceFlag struct {
|
||
Name string
|
||
|
||
Category string
|
||
DefaultText string
|
||
FilePath string
|
||
Usage string
|
||
|
||
Required bool
|
||
Hidden bool
|
||
HasBeenSet bool
|
||
|
||
Value *Int64Slice
|
||
Destination *Int64Slice
|
||
|
||
Aliases []string
|
||
EnvVars []string
|
||
|
||
Action func(*Context, []int64) error
|
||
// Has unexported fields.
|
||
}
|
||
Int64SliceFlag is a flag with type *Int64Slice
|
||
|
||
func (f *Int64SliceFlag) Apply(set *flag.FlagSet) error
|
||
Apply populates the flag given the flag set and environment
|
||
|
||
func (f *Int64SliceFlag) Get(ctx *Context) []int64
|
||
Get returns the flag’s value in the given Context.
|
||
|
||
func (f *Int64SliceFlag) GetCategory() string
|
||
GetCategory returns the category for the flag
|
||
|
||
func (f *Int64SliceFlag) GetDefaultText() string
|
||
GetDefaultText returns the default text for this flag
|
||
|
||
func (f *Int64SliceFlag) GetDestination() []int64
|
||
|
||
func (f *Int64SliceFlag) GetEnvVars() []string
|
||
GetEnvVars returns the env vars for this flag
|
||
|
||
func (f *Int64SliceFlag) GetUsage() string
|
||
GetUsage returns the usage string for the flag
|
||
|
||
func (f *Int64SliceFlag) GetValue() string
|
||
GetValue returns the flags value as string representation and an empty
|
||
string if the flag takes no value at all.
|
||
|
||
func (f *Int64SliceFlag) IsRequired() bool
|
||
IsRequired returns whether or not the flag is required
|
||
|
||
func (f *Int64SliceFlag) IsSet() bool
|
||
IsSet returns whether or not the flag has been set through env or file
|
||
|
||
func (f *Int64SliceFlag) IsSliceFlag() bool
|
||
IsSliceFlag implements DocGenerationSliceFlag.
|
||
|
||
func (f *Int64SliceFlag) IsVisible() bool
|
||
IsVisible returns true if the flag is not hidden, otherwise false
|
||
|
||
func (f *Int64SliceFlag) Names() []string
|
||
Names returns the names of the flag
|
||
|
||
func (f *Int64SliceFlag) RunAction(c *Context) error
|
||
RunAction executes flag action if set
|
||
|
||
func (f *Int64SliceFlag) SetDestination(slice []int64)
|
||
|
||
func (f *Int64SliceFlag) SetValue(slice []int64)
|
||
|
||
func (f *Int64SliceFlag) String() string
|
||
String returns a readable representation of this value (for usage defaults)
|
||
|
||
func (f *Int64SliceFlag) TakesValue() bool
|
||
TakesValue returns true of the flag takes a value, otherwise false
|
||
|
||
type IntFlag struct {
|
||
Name string
|
||
|
||
Category string
|
||
DefaultText string
|
||
FilePath string
|
||
Usage string
|
||
|
||
Required bool
|
||
Hidden bool
|
||
HasBeenSet bool
|
||
|
||
Value int
|
||
Destination *int
|
||
|
||
Aliases []string
|
||
EnvVars []string
|
||
|
||
Base int
|
||
|
||
Action func(*Context, int) error
|
||
// Has unexported fields.
|
||
}
|
||
IntFlag is a flag with type int
|
||
|
||
func (f *IntFlag) Apply(set *flag.FlagSet) error
|
||
Apply populates the flag given the flag set and environment
|
||
|
||
func (f *IntFlag) Get(ctx *Context) int
|
||
Get returns the flag’s value in the given Context.
|
||
|
||
func (f *IntFlag) GetCategory() string
|
||
GetCategory returns the category for the flag
|
||
|
||
func (f *IntFlag) GetDefaultText() string
|
||
GetDefaultText returns the default text for this flag
|
||
|
||
func (f *IntFlag) GetEnvVars() []string
|
||
GetEnvVars returns the env vars for this flag
|
||
|
||
func (f *IntFlag) GetUsage() string
|
||
GetUsage returns the usage string for the flag
|
||
|
||
func (f *IntFlag) GetValue() string
|
||
GetValue returns the flags value as string representation and an empty
|
||
string if the flag takes no value at all.
|
||
|
||
func (f *IntFlag) IsRequired() bool
|
||
IsRequired returns whether or not the flag is required
|
||
|
||
func (f *IntFlag) IsSet() bool
|
||
IsSet returns whether or not the flag has been set through env or file
|
||
|
||
func (f *IntFlag) IsVisible() bool
|
||
IsVisible returns true if the flag is not hidden, otherwise false
|
||
|
||
func (f *IntFlag) Names() []string
|
||
Names returns the names of the flag
|
||
|
||
func (f *IntFlag) RunAction(c *Context) error
|
||
RunAction executes flag action if set
|
||
|
||
func (f *IntFlag) String() string
|
||
String returns a readable representation of this value (for usage defaults)
|
||
|
||
func (f *IntFlag) TakesValue() bool
|
||
TakesValue returns true of the flag takes a value, otherwise false
|
||
|
||
type IntSlice struct {
|
||
// Has unexported fields.
|
||
}
|
||
IntSlice wraps []int to satisfy flag.Value
|
||
|
||
func NewIntSlice(defaults ...int) *IntSlice
|
||
NewIntSlice makes an *IntSlice with default values
|
||
|
||
func (i *IntSlice) Get() interface{}
|
||
Get returns the slice of ints set by this flag
|
||
|
||
func (i *IntSlice) Serialize() string
|
||
Serialize allows IntSlice to fulfill Serializer
|
||
|
||
func (i *IntSlice) Set(value string) error
|
||
Set parses the value into an integer and appends it to the list of values
|
||
|
||
func (i *IntSlice) SetInt(value int)
|
||
TODO: Consistently have specific Set function for Int64 and Float64 ? SetInt
|
||
directly adds an integer to the list of values
|
||
|
||
func (i *IntSlice) String() string
|
||
String returns a readable representation of this value (for usage defaults)
|
||
|
||
func (i *IntSlice) Value() []int
|
||
Value returns the slice of ints set by this flag
|
||
|
||
type IntSliceFlag struct {
|
||
Name string
|
||
|
||
Category string
|
||
DefaultText string
|
||
FilePath string
|
||
Usage string
|
||
|
||
Required bool
|
||
Hidden bool
|
||
HasBeenSet bool
|
||
|
||
Value *IntSlice
|
||
Destination *IntSlice
|
||
|
||
Aliases []string
|
||
EnvVars []string
|
||
|
||
Action func(*Context, []int) error
|
||
// Has unexported fields.
|
||
}
|
||
IntSliceFlag is a flag with type *IntSlice
|
||
|
||
func (f *IntSliceFlag) Apply(set *flag.FlagSet) error
|
||
Apply populates the flag given the flag set and environment
|
||
|
||
func (f *IntSliceFlag) Get(ctx *Context) []int
|
||
Get returns the flag’s value in the given Context.
|
||
|
||
func (f *IntSliceFlag) GetCategory() string
|
||
GetCategory returns the category for the flag
|
||
|
||
func (f *IntSliceFlag) GetDefaultText() string
|
||
GetDefaultText returns the default text for this flag
|
||
|
||
func (f *IntSliceFlag) GetDestination() []int
|
||
|
||
func (f *IntSliceFlag) GetEnvVars() []string
|
||
GetEnvVars returns the env vars for this flag
|
||
|
||
func (f *IntSliceFlag) GetUsage() string
|
||
GetUsage returns the usage string for the flag
|
||
|
||
func (f *IntSliceFlag) GetValue() string
|
||
GetValue returns the flags value as string representation and an empty
|
||
string if the flag takes no value at all.
|
||
|
||
func (f *IntSliceFlag) IsRequired() bool
|
||
IsRequired returns whether or not the flag is required
|
||
|
||
func (f *IntSliceFlag) IsSet() bool
|
||
IsSet returns whether or not the flag has been set through env or file
|
||
|
||
func (f *IntSliceFlag) IsSliceFlag() bool
|
||
IsSliceFlag implements DocGenerationSliceFlag.
|
||
|
||
func (f *IntSliceFlag) IsVisible() bool
|
||
IsVisible returns true if the flag is not hidden, otherwise false
|
||
|
||
func (f *IntSliceFlag) Names() []string
|
||
Names returns the names of the flag
|
||
|
||
func (f *IntSliceFlag) RunAction(c *Context) error
|
||
RunAction executes flag action if set
|
||
|
||
func (f *IntSliceFlag) SetDestination(slice []int)
|
||
|
||
func (f *IntSliceFlag) SetValue(slice []int)
|
||
|
||
func (f *IntSliceFlag) String() string
|
||
String returns a readable representation of this value (for usage defaults)
|
||
|
||
func (f *IntSliceFlag) TakesValue() bool
|
||
TakesValue returns true of the flag takes a value, otherwise false
|
||
|
||
type InvalidFlagAccessFunc func(*Context, string)
|
||
InvalidFlagAccessFunc is executed when an invalid flag is accessed from the
|
||
context.
|
||
|
||
type MultiError interface {
|
||
error
|
||
Errors() []error
|
||
}
|
||
MultiError is an error that wraps multiple errors.
|
||
|
||
type MultiFloat64Flag = SliceFlag[*Float64SliceFlag, []float64, float64]
|
||
MultiFloat64Flag extends Float64SliceFlag with support for using slices
|
||
directly, as Value and/or Destination. See also SliceFlag.
|
||
|
||
type MultiInt64Flag = SliceFlag[*Int64SliceFlag, []int64, int64]
|
||
MultiInt64Flag extends Int64SliceFlag with support for using slices
|
||
directly, as Value and/or Destination. See also SliceFlag.
|
||
|
||
type MultiIntFlag = SliceFlag[*IntSliceFlag, []int, int]
|
||
MultiIntFlag extends IntSliceFlag with support for using slices directly,
|
||
as Value and/or Destination. See also SliceFlag.
|
||
|
||
type MultiStringFlag = SliceFlag[*StringSliceFlag, []string, string]
|
||
MultiStringFlag extends StringSliceFlag with support for using slices
|
||
directly, as Value and/or Destination. See also SliceFlag.
|
||
|
||
type OnUsageErrorFunc func(cCtx *Context, err error, isSubcommand bool) error
|
||
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 Path = string
|
||
|
||
type PathFlag struct {
|
||
Name string
|
||
|
||
Category string
|
||
DefaultText string
|
||
FilePath string
|
||
Usage string
|
||
|
||
Required bool
|
||
Hidden bool
|
||
HasBeenSet bool
|
||
|
||
Value Path
|
||
Destination *Path
|
||
|
||
Aliases []string
|
||
EnvVars []string
|
||
|
||
TakesFile bool
|
||
|
||
Action func(*Context, Path) error
|
||
// Has unexported fields.
|
||
}
|
||
PathFlag is a flag with type Path
|
||
|
||
func (f *PathFlag) Apply(set *flag.FlagSet) error
|
||
Apply populates the flag given the flag set and environment
|
||
|
||
func (f *PathFlag) Get(ctx *Context) string
|
||
Get returns the flag’s value in the given Context.
|
||
|
||
func (f *PathFlag) GetCategory() string
|
||
GetCategory returns the category for the flag
|
||
|
||
func (f *PathFlag) GetDefaultText() string
|
||
GetDefaultText returns the default text for this flag
|
||
|
||
func (f *PathFlag) GetEnvVars() []string
|
||
GetEnvVars returns the env vars for this flag
|
||
|
||
func (f *PathFlag) GetUsage() string
|
||
GetUsage returns the usage string for the flag
|
||
|
||
func (f *PathFlag) GetValue() string
|
||
GetValue returns the flags value as string representation and an empty
|
||
string if the flag takes no value at all.
|
||
|
||
func (f *PathFlag) IsRequired() bool
|
||
IsRequired returns whether or not the flag is required
|
||
|
||
func (f *PathFlag) IsSet() bool
|
||
IsSet returns whether or not the flag has been set through env or file
|
||
|
||
func (f *PathFlag) IsVisible() bool
|
||
IsVisible returns true if the flag is not hidden, otherwise false
|
||
|
||
func (f *PathFlag) Names() []string
|
||
Names returns the names of the flag
|
||
|
||
func (f *PathFlag) RunAction(c *Context) error
|
||
RunAction executes flag action if set
|
||
|
||
func (f *PathFlag) String() string
|
||
String returns a readable representation of this value (for usage defaults)
|
||
|
||
func (f *PathFlag) TakesValue() bool
|
||
TakesValue returns true of the flag takes a value, otherwise false
|
||
|
||
type RequiredFlag interface {
|
||
Flag
|
||
|
||
IsRequired() 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 Serializer interface {
|
||
Serialize() string
|
||
}
|
||
Serializer is used to circumvent the limitations of flag.FlagSet.Set
|
||
|
||
type SliceFlag[T SliceFlagTarget[E], S ~[]E, E any] struct {
|
||
Target T
|
||
Value S
|
||
Destination *S
|
||
}
|
||
SliceFlag extends implementations like StringSliceFlag and IntSliceFlag
|
||
with support for using slices directly, as Value and/or Destination.
|
||
See also SliceFlagTarget, MultiStringFlag, MultiFloat64Flag, MultiInt64Flag,
|
||
MultiIntFlag.
|
||
|
||
func (x *SliceFlag[T, S, E]) Apply(set *flag.FlagSet) error
|
||
|
||
func (x *SliceFlag[T, S, E]) GetCategory() string
|
||
|
||
func (x *SliceFlag[T, S, E]) GetDefaultText() string
|
||
|
||
func (x *SliceFlag[T, S, E]) GetDestination() S
|
||
|
||
func (x *SliceFlag[T, S, E]) GetEnvVars() []string
|
||
|
||
func (x *SliceFlag[T, S, E]) GetUsage() string
|
||
|
||
func (x *SliceFlag[T, S, E]) GetValue() string
|
||
|
||
func (x *SliceFlag[T, S, E]) IsRequired() bool
|
||
|
||
func (x *SliceFlag[T, S, E]) IsSet() bool
|
||
|
||
func (x *SliceFlag[T, S, E]) IsVisible() bool
|
||
|
||
func (x *SliceFlag[T, S, E]) Names() []string
|
||
|
||
func (x *SliceFlag[T, S, E]) SetDestination(slice S)
|
||
|
||
func (x *SliceFlag[T, S, E]) SetValue(slice S)
|
||
|
||
func (x *SliceFlag[T, S, E]) String() string
|
||
|
||
func (x *SliceFlag[T, S, E]) TakesValue() bool
|
||
|
||
type SliceFlagTarget[E any] interface {
|
||
Flag
|
||
RequiredFlag
|
||
DocGenerationFlag
|
||
VisibleFlag
|
||
CategorizableFlag
|
||
|
||
// SetValue should propagate the given slice to the target, ideally as a new value.
|
||
// Note that a nil slice should nil/clear any existing value (modelled as ~[]E).
|
||
SetValue(slice []E)
|
||
// SetDestination should propagate the given slice to the target, ideally as a new value.
|
||
// Note that a nil slice should nil/clear any existing value (modelled as ~*[]E).
|
||
SetDestination(slice []E)
|
||
// GetDestination should return the current value referenced by any destination, or nil if nil/unset.
|
||
GetDestination() []E
|
||
}
|
||
SliceFlagTarget models a target implementation for use with SliceFlag. The
|
||
three methods, SetValue, SetDestination, and GetDestination, are necessary
|
||
to propagate Value and Destination, where Value is propagated inwards
|
||
(initially), and Destination is propagated outwards (on every update).
|
||
|
||
type StringFlag struct {
|
||
Name string
|
||
|
||
Category string
|
||
DefaultText string
|
||
FilePath string
|
||
Usage string
|
||
|
||
Required bool
|
||
Hidden bool
|
||
HasBeenSet bool
|
||
|
||
Value string
|
||
Destination *string
|
||
|
||
Aliases []string
|
||
EnvVars []string
|
||
|
||
TakesFile bool
|
||
|
||
Action func(*Context, string) error
|
||
// Has unexported fields.
|
||
}
|
||
StringFlag is a flag with type string
|
||
|
||
func (f *StringFlag) Apply(set *flag.FlagSet) error
|
||
Apply populates the flag given the flag set and environment
|
||
|
||
func (f *StringFlag) Get(ctx *Context) string
|
||
Get returns the flag’s value in the given Context.
|
||
|
||
func (f *StringFlag) GetCategory() string
|
||
GetCategory returns the category for the flag
|
||
|
||
func (f *StringFlag) GetDefaultText() string
|
||
GetDefaultText returns the default text for this flag
|
||
|
||
func (f *StringFlag) GetEnvVars() []string
|
||
GetEnvVars returns the env vars for this flag
|
||
|
||
func (f *StringFlag) GetUsage() string
|
||
GetUsage returns the usage string for the flag
|
||
|
||
func (f *StringFlag) GetValue() string
|
||
GetValue returns the flags value as string representation and an empty
|
||
string if the flag takes no value at all.
|
||
|
||
func (f *StringFlag) IsRequired() bool
|
||
IsRequired returns whether or not the flag is required
|
||
|
||
func (f *StringFlag) IsSet() bool
|
||
IsSet returns whether or not the flag has been set through env or file
|
||
|
||
func (f *StringFlag) IsVisible() bool
|
||
IsVisible returns true if the flag is not hidden, otherwise false
|
||
|
||
func (f *StringFlag) Names() []string
|
||
Names returns the names of the flag
|
||
|
||
func (f *StringFlag) RunAction(c *Context) error
|
||
RunAction executes flag action if set
|
||
|
||
func (f *StringFlag) String() string
|
||
String returns a readable representation of this value (for usage defaults)
|
||
|
||
func (f *StringFlag) TakesValue() bool
|
||
TakesValue returns true of the flag takes a value, otherwise false
|
||
|
||
type StringSlice struct {
|
||
// Has unexported fields.
|
||
}
|
||
StringSlice wraps a []string to satisfy flag.Value
|
||
|
||
func NewStringSlice(defaults ...string) *StringSlice
|
||
NewStringSlice creates a *StringSlice with default values
|
||
|
||
func (s *StringSlice) Get() interface{}
|
||
Get returns the slice of strings set by this flag
|
||
|
||
func (s *StringSlice) Serialize() string
|
||
Serialize allows StringSlice to fulfill Serializer
|
||
|
||
func (s *StringSlice) Set(value string) error
|
||
Set appends the string value to the list of values
|
||
|
||
func (s *StringSlice) String() string
|
||
String returns a readable representation of this value (for usage defaults)
|
||
|
||
func (s *StringSlice) Value() []string
|
||
Value returns the slice of strings set by this flag
|
||
|
||
type StringSliceFlag struct {
|
||
Name string
|
||
|
||
Category string
|
||
DefaultText string
|
||
FilePath string
|
||
Usage string
|
||
|
||
Required bool
|
||
Hidden bool
|
||
HasBeenSet bool
|
||
|
||
Value *StringSlice
|
||
Destination *StringSlice
|
||
|
||
Aliases []string
|
||
EnvVars []string
|
||
|
||
TakesFile bool
|
||
|
||
Action func(*Context, []string) error
|
||
// Has unexported fields.
|
||
}
|
||
StringSliceFlag is a flag with type *StringSlice
|
||
|
||
func (f *StringSliceFlag) Apply(set *flag.FlagSet) error
|
||
Apply populates the flag given the flag set and environment
|
||
|
||
func (f *StringSliceFlag) Get(ctx *Context) []string
|
||
Get returns the flag’s value in the given Context.
|
||
|
||
func (f *StringSliceFlag) GetCategory() string
|
||
GetCategory returns the category for the flag
|
||
|
||
func (f *StringSliceFlag) GetDefaultText() string
|
||
GetDefaultText returns the default text for this flag
|
||
|
||
func (f *StringSliceFlag) GetDestination() []string
|
||
|
||
func (f *StringSliceFlag) GetEnvVars() []string
|
||
GetEnvVars returns the env vars for this flag
|
||
|
||
func (f *StringSliceFlag) GetUsage() string
|
||
GetUsage returns the usage string for the flag
|
||
|
||
func (f *StringSliceFlag) GetValue() string
|
||
GetValue returns the flags value as string representation and an empty
|
||
string if the flag takes no value at all.
|
||
|
||
func (f *StringSliceFlag) IsRequired() bool
|
||
IsRequired returns whether or not the flag is required
|
||
|
||
func (f *StringSliceFlag) IsSet() bool
|
||
IsSet returns whether or not the flag has been set through env or file
|
||
|
||
func (f *StringSliceFlag) IsSliceFlag() bool
|
||
IsSliceFlag implements DocGenerationSliceFlag.
|
||
|
||
func (f *StringSliceFlag) IsVisible() bool
|
||
IsVisible returns true if the flag is not hidden, otherwise false
|
||
|
||
func (f *StringSliceFlag) Names() []string
|
||
Names returns the names of the flag
|
||
|
||
func (f *StringSliceFlag) RunAction(c *Context) error
|
||
RunAction executes flag action if set
|
||
|
||
func (f *StringSliceFlag) SetDestination(slice []string)
|
||
|
||
func (f *StringSliceFlag) SetValue(slice []string)
|
||
|
||
func (f *StringSliceFlag) String() string
|
||
String returns a readable representation of this value (for usage defaults)
|
||
|
||
func (f *StringSliceFlag) TakesValue() bool
|
||
TakesValue returns true of the flag takes a value, otherwise false
|
||
|
||
type SuggestCommandFunc func(commands []*Command, provided string) string
|
||
|
||
type SuggestFlagFunc func(flags []Flag, provided string, hideHelp bool) string
|
||
|
||
type Timestamp struct {
|
||
// Has unexported fields.
|
||
}
|
||
Timestamp wrap to satisfy golang's flag interface.
|
||
|
||
func NewTimestamp(timestamp time.Time) *Timestamp
|
||
Timestamp constructor
|
||
|
||
func (t *Timestamp) Get() interface{}
|
||
Get returns the flag structure
|
||
|
||
func (t *Timestamp) Set(value string) error
|
||
Parses the string value to timestamp
|
||
|
||
func (t *Timestamp) SetLayout(layout string)
|
||
Set the timestamp string layout for future parsing
|
||
|
||
func (t *Timestamp) SetLocation(loc *time.Location)
|
||
Set perceived timezone of the to-be parsed time string
|
||
|
||
func (t *Timestamp) SetTimestamp(value time.Time)
|
||
Set the timestamp value directly
|
||
|
||
func (t *Timestamp) String() string
|
||
String returns a readable representation of this value (for usage defaults)
|
||
|
||
func (t *Timestamp) Value() *time.Time
|
||
Value returns the timestamp value stored in the flag
|
||
|
||
type TimestampFlag struct {
|
||
Name string
|
||
|
||
Category string
|
||
DefaultText string
|
||
FilePath string
|
||
Usage string
|
||
|
||
Required bool
|
||
Hidden bool
|
||
HasBeenSet bool
|
||
|
||
Value *Timestamp
|
||
Destination *Timestamp
|
||
|
||
Aliases []string
|
||
EnvVars []string
|
||
|
||
Layout string
|
||
|
||
Timezone *time.Location
|
||
|
||
Action func(*Context, *time.Time) error
|
||
// Has unexported fields.
|
||
}
|
||
TimestampFlag is a flag with type *Timestamp
|
||
|
||
func (f *TimestampFlag) Apply(set *flag.FlagSet) error
|
||
Apply populates the flag given the flag set and environment
|
||
|
||
func (f *TimestampFlag) Get(ctx *Context) *time.Time
|
||
Get returns the flag’s value in the given Context.
|
||
|
||
func (f *TimestampFlag) GetCategory() string
|
||
GetCategory returns the category for the flag
|
||
|
||
func (f *TimestampFlag) GetDefaultText() string
|
||
GetDefaultText returns the default text for this flag
|
||
|
||
func (f *TimestampFlag) GetEnvVars() []string
|
||
GetEnvVars returns the env vars for this flag
|
||
|
||
func (f *TimestampFlag) GetUsage() string
|
||
GetUsage returns the usage string for the flag
|
||
|
||
func (f *TimestampFlag) GetValue() string
|
||
GetValue returns the flags value as string representation and an empty
|
||
string if the flag takes no value at all.
|
||
|
||
func (f *TimestampFlag) IsRequired() bool
|
||
IsRequired returns whether or not the flag is required
|
||
|
||
func (f *TimestampFlag) IsSet() bool
|
||
IsSet returns whether or not the flag has been set through env or file
|
||
|
||
func (f *TimestampFlag) IsVisible() bool
|
||
IsVisible returns true if the flag is not hidden, otherwise false
|
||
|
||
func (f *TimestampFlag) Names() []string
|
||
Names returns the names of the flag
|
||
|
||
func (f *TimestampFlag) RunAction(c *Context) error
|
||
RunAction executes flag action if set
|
||
|
||
func (f *TimestampFlag) String() string
|
||
String returns a readable representation of this value (for usage defaults)
|
||
|
||
func (f *TimestampFlag) TakesValue() bool
|
||
TakesValue returns true of the flag takes a value, otherwise false
|
||
|
||
type Uint64Flag struct {
|
||
Name string
|
||
|
||
Category string
|
||
DefaultText string
|
||
FilePath string
|
||
Usage string
|
||
|
||
Required bool
|
||
Hidden bool
|
||
HasBeenSet bool
|
||
|
||
Value uint64
|
||
Destination *uint64
|
||
|
||
Aliases []string
|
||
EnvVars []string
|
||
|
||
Base int
|
||
|
||
Action func(*Context, uint64) error
|
||
// Has unexported fields.
|
||
}
|
||
Uint64Flag is a flag with type uint64
|
||
|
||
func (f *Uint64Flag) Apply(set *flag.FlagSet) error
|
||
Apply populates the flag given the flag set and environment
|
||
|
||
func (f *Uint64Flag) Get(ctx *Context) uint64
|
||
Get returns the flag’s value in the given Context.
|
||
|
||
func (f *Uint64Flag) GetCategory() string
|
||
GetCategory returns the category for the flag
|
||
|
||
func (f *Uint64Flag) GetDefaultText() string
|
||
GetDefaultText returns the default text for this flag
|
||
|
||
func (f *Uint64Flag) GetEnvVars() []string
|
||
GetEnvVars returns the env vars for this flag
|
||
|
||
func (f *Uint64Flag) GetUsage() string
|
||
GetUsage returns the usage string for the flag
|
||
|
||
func (f *Uint64Flag) GetValue() string
|
||
GetValue returns the flags value as string representation and an empty
|
||
string if the flag takes no value at all.
|
||
|
||
func (f *Uint64Flag) IsRequired() bool
|
||
IsRequired returns whether or not the flag is required
|
||
|
||
func (f *Uint64Flag) IsSet() bool
|
||
IsSet returns whether or not the flag has been set through env or file
|
||
|
||
func (f *Uint64Flag) IsVisible() bool
|
||
IsVisible returns true if the flag is not hidden, otherwise false
|
||
|
||
func (f *Uint64Flag) Names() []string
|
||
Names returns the names of the flag
|
||
|
||
func (f *Uint64Flag) RunAction(c *Context) error
|
||
RunAction executes flag action if set
|
||
|
||
func (f *Uint64Flag) String() string
|
||
String returns a readable representation of this value (for usage defaults)
|
||
|
||
func (f *Uint64Flag) TakesValue() bool
|
||
TakesValue returns true of the flag takes a value, otherwise false
|
||
|
||
type Uint64Slice struct {
|
||
// Has unexported fields.
|
||
}
|
||
Uint64Slice wraps []int64 to satisfy flag.Value
|
||
|
||
func NewUint64Slice(defaults ...uint64) *Uint64Slice
|
||
NewUint64Slice makes an *Uint64Slice with default values
|
||
|
||
func (i *Uint64Slice) Get() interface{}
|
||
Get returns the slice of ints set by this flag
|
||
|
||
func (i *Uint64Slice) Serialize() string
|
||
Serialize allows Uint64Slice to fulfill Serializer
|
||
|
||
func (i *Uint64Slice) Set(value string) error
|
||
Set parses the value into an integer and appends it to the list of values
|
||
|
||
func (i *Uint64Slice) String() string
|
||
String returns a readable representation of this value (for usage defaults)
|
||
|
||
func (i *Uint64Slice) Value() []uint64
|
||
Value returns the slice of ints set by this flag
|
||
|
||
type Uint64SliceFlag struct {
|
||
Name string
|
||
|
||
Category string
|
||
DefaultText string
|
||
FilePath string
|
||
Usage string
|
||
|
||
Required bool
|
||
Hidden bool
|
||
HasBeenSet bool
|
||
|
||
Value *Uint64Slice
|
||
Destination *Uint64Slice
|
||
|
||
Aliases []string
|
||
EnvVars []string
|
||
|
||
Action func(*Context, []uint64) error
|
||
// Has unexported fields.
|
||
}
|
||
Uint64SliceFlag is a flag with type *Uint64Slice
|
||
|
||
func (f *Uint64SliceFlag) Apply(set *flag.FlagSet) error
|
||
Apply populates the flag given the flag set and environment
|
||
|
||
func (f *Uint64SliceFlag) Get(ctx *Context) []uint64
|
||
Get returns the flag’s value in the given Context.
|
||
|
||
func (f *Uint64SliceFlag) GetCategory() string
|
||
GetCategory returns the category for the flag
|
||
|
||
func (f *Uint64SliceFlag) GetDefaultText() string
|
||
GetDefaultText returns the default text for this flag
|
||
|
||
func (f *Uint64SliceFlag) GetEnvVars() []string
|
||
GetEnvVars returns the env vars for this flag
|
||
|
||
func (f *Uint64SliceFlag) GetUsage() string
|
||
GetUsage returns the usage string for the flag
|
||
|
||
func (f *Uint64SliceFlag) GetValue() string
|
||
GetValue returns the flags value as string representation and an empty
|
||
string if the flag takes no value at all.
|
||
|
||
func (f *Uint64SliceFlag) IsRequired() bool
|
||
IsRequired returns whether or not the flag is required
|
||
|
||
func (f *Uint64SliceFlag) IsSet() bool
|
||
IsSet returns whether or not the flag has been set through env or file
|
||
|
||
func (f *Uint64SliceFlag) IsSliceFlag() bool
|
||
IsSliceFlag implements DocGenerationSliceFlag.
|
||
|
||
func (f *Uint64SliceFlag) IsVisible() bool
|
||
IsVisible returns true if the flag is not hidden, otherwise false
|
||
|
||
func (f *Uint64SliceFlag) Names() []string
|
||
Names returns the names of the flag
|
||
|
||
func (f *Uint64SliceFlag) String() string
|
||
String returns a readable representation of this value (for usage defaults)
|
||
|
||
func (f *Uint64SliceFlag) TakesValue() bool
|
||
TakesValue returns true of the flag takes a value, otherwise false
|
||
|
||
type UintFlag struct {
|
||
Name string
|
||
|
||
Category string
|
||
DefaultText string
|
||
FilePath string
|
||
Usage string
|
||
|
||
Required bool
|
||
Hidden bool
|
||
HasBeenSet bool
|
||
|
||
Value uint
|
||
Destination *uint
|
||
|
||
Aliases []string
|
||
EnvVars []string
|
||
|
||
Base int
|
||
|
||
Action func(*Context, uint) error
|
||
// Has unexported fields.
|
||
}
|
||
UintFlag is a flag with type uint
|
||
|
||
func (f *UintFlag) Apply(set *flag.FlagSet) error
|
||
Apply populates the flag given the flag set and environment
|
||
|
||
func (f *UintFlag) Get(ctx *Context) uint
|
||
Get returns the flag’s value in the given Context.
|
||
|
||
func (f *UintFlag) GetCategory() string
|
||
GetCategory returns the category for the flag
|
||
|
||
func (f *UintFlag) GetDefaultText() string
|
||
GetDefaultText returns the default text for this flag
|
||
|
||
func (f *UintFlag) GetEnvVars() []string
|
||
GetEnvVars returns the env vars for this flag
|
||
|
||
func (f *UintFlag) GetUsage() string
|
||
GetUsage returns the usage string for the flag
|
||
|
||
func (f *UintFlag) GetValue() string
|
||
GetValue returns the flags value as string representation and an empty
|
||
string if the flag takes no value at all.
|
||
|
||
func (f *UintFlag) IsRequired() bool
|
||
IsRequired returns whether or not the flag is required
|
||
|
||
func (f *UintFlag) IsSet() bool
|
||
IsSet returns whether or not the flag has been set through env or file
|
||
|
||
func (f *UintFlag) IsVisible() bool
|
||
IsVisible returns true if the flag is not hidden, otherwise false
|
||
|
||
func (f *UintFlag) Names() []string
|
||
Names returns the names of the flag
|
||
|
||
func (f *UintFlag) RunAction(c *Context) error
|
||
RunAction executes flag action if set
|
||
|
||
func (f *UintFlag) String() string
|
||
String returns a readable representation of this value (for usage defaults)
|
||
|
||
func (f *UintFlag) TakesValue() bool
|
||
TakesValue returns true of the flag takes a value, otherwise false
|
||
|
||
type UintSlice struct {
|
||
// Has unexported fields.
|
||
}
|
||
UintSlice wraps []int to satisfy flag.Value
|
||
|
||
func NewUintSlice(defaults ...uint) *UintSlice
|
||
NewUintSlice makes an *UintSlice with default values
|
||
|
||
func (i *UintSlice) Get() interface{}
|
||
Get returns the slice of ints set by this flag
|
||
|
||
func (i *UintSlice) Serialize() string
|
||
Serialize allows UintSlice to fulfill Serializer
|
||
|
||
func (i *UintSlice) Set(value string) error
|
||
Set parses the value into an integer and appends it to the list of values
|
||
|
||
func (i *UintSlice) SetUint(value uint)
|
||
TODO: Consistently have specific Set function for Int64 and Float64 ? SetInt
|
||
directly adds an integer to the list of values
|
||
|
||
func (i *UintSlice) String() string
|
||
String returns a readable representation of this value (for usage defaults)
|
||
|
||
func (i *UintSlice) Value() []uint
|
||
Value returns the slice of ints set by this flag
|
||
|
||
type UintSliceFlag struct {
|
||
Name string
|
||
|
||
Category string
|
||
DefaultText string
|
||
FilePath string
|
||
Usage string
|
||
|
||
Required bool
|
||
Hidden bool
|
||
HasBeenSet bool
|
||
|
||
Value *UintSlice
|
||
Destination *UintSlice
|
||
|
||
Aliases []string
|
||
EnvVars []string
|
||
|
||
Action func(*Context, []uint) error
|
||
// Has unexported fields.
|
||
}
|
||
UintSliceFlag is a flag with type *UintSlice
|
||
|
||
func (f *UintSliceFlag) Apply(set *flag.FlagSet) error
|
||
Apply populates the flag given the flag set and environment
|
||
|
||
func (f *UintSliceFlag) Get(ctx *Context) []uint
|
||
Get returns the flag’s value in the given Context.
|
||
|
||
func (f *UintSliceFlag) GetCategory() string
|
||
GetCategory returns the category for the flag
|
||
|
||
func (f *UintSliceFlag) GetDefaultText() string
|
||
GetDefaultText returns the default text for this flag
|
||
|
||
func (f *UintSliceFlag) GetEnvVars() []string
|
||
GetEnvVars returns the env vars for this flag
|
||
|
||
func (f *UintSliceFlag) GetUsage() string
|
||
GetUsage returns the usage string for the flag
|
||
|
||
func (f *UintSliceFlag) GetValue() string
|
||
GetValue returns the flags value as string representation and an empty
|
||
string if the flag takes no value at all.
|
||
|
||
func (f *UintSliceFlag) IsRequired() bool
|
||
IsRequired returns whether or not the flag is required
|
||
|
||
func (f *UintSliceFlag) IsSet() bool
|
||
IsSet returns whether or not the flag has been set through env or file
|
||
|
||
func (f *UintSliceFlag) IsSliceFlag() bool
|
||
IsSliceFlag implements DocGenerationSliceFlag.
|
||
|
||
func (f *UintSliceFlag) IsVisible() bool
|
||
IsVisible returns true if the flag is not hidden, otherwise false
|
||
|
||
func (f *UintSliceFlag) Names() []string
|
||
Names returns the names of the flag
|
||
|
||
func (f *UintSliceFlag) String() string
|
||
String returns a readable representation of this value (for usage defaults)
|
||
|
||
func (f *UintSliceFlag) TakesValue() bool
|
||
TakesValue returns true of the flag takes a value, otherwise false
|
||
|
||
type VisibleFlag interface {
|
||
Flag
|
||
|
||
// IsVisible returns true if the flag is not hidden, otherwise false
|
||
IsVisible() bool
|
||
}
|
||
VisibleFlag is an interface that allows to check if a flag is visible
|
||
|
||
type VisibleFlagCategory interface {
|
||
// Name returns the category name string
|
||
Name() string
|
||
// Flags returns a slice of VisibleFlag sorted by name
|
||
Flags() []VisibleFlag
|
||
}
|
||
VisibleFlagCategory is a category containing flags.
|
||
|
||
package altsrc // import "github.com/urfave/cli/v2/altsrc"
|
||
|
||
|
||
FUNCTIONS
|
||
|
||
func ApplyInputSourceValues(cCtx *cli.Context, inputSourceContext InputSourceContext, flags []cli.Flag) error
|
||
ApplyInputSourceValues iterates over all provided flags and executes
|
||
ApplyInputSourceValue on flags implementing the FlagInputSourceExtension
|
||
interface to initialize these flags to an alternate input source.
|
||
|
||
func InitInputSource(flags []cli.Flag, createInputSource func() (InputSourceContext, error)) cli.BeforeFunc
|
||
InitInputSource is used to to setup an InputSourceContext on a cli.Command
|
||
Before method. It will create a new input source based on the func provided.
|
||
If there is no error it will then apply the new input source to any flags
|
||
that are supported by the input source
|
||
|
||
func InitInputSourceWithContext(flags []cli.Flag, createInputSource func(cCtx *cli.Context) (InputSourceContext, error)) cli.BeforeFunc
|
||
InitInputSourceWithContext is used to to setup an InputSourceContext on
|
||
a cli.Command Before method. It will create a new input source based on
|
||
the func provided with potentially using existing cli.Context values to
|
||
initialize itself. If there is no error it will then apply the new input
|
||
source to any flags that are supported by the input source
|
||
|
||
func NewJSONSourceFromFlagFunc(flag string) func(c *cli.Context) (InputSourceContext, error)
|
||
NewJSONSourceFromFlagFunc returns a func that takes a cli.Context and
|
||
returns an InputSourceContext suitable for retrieving config variables from
|
||
a file containing JSON data with the file name defined by the given flag.
|
||
|
||
func NewTomlSourceFromFlagFunc(flagFileName string) func(cCtx *cli.Context) (InputSourceContext, error)
|
||
NewTomlSourceFromFlagFunc creates a new TOML InputSourceContext from a
|
||
provided flag name and source context.
|
||
|
||
func NewYamlSourceFromFlagFunc(flagFileName string) func(cCtx *cli.Context) (InputSourceContext, error)
|
||
NewYamlSourceFromFlagFunc creates a new Yaml InputSourceContext from a
|
||
provided flag name and source context.
|
||
|
||
|
||
TYPES
|
||
|
||
type BoolFlag struct {
|
||
*cli.BoolFlag
|
||
// Has unexported fields.
|
||
}
|
||
BoolFlag is the flag type that wraps cli.BoolFlag to allow for other values
|
||
to be specified
|
||
|
||
func NewBoolFlag(fl *cli.BoolFlag) *BoolFlag
|
||
NewBoolFlag creates a new BoolFlag
|
||
|
||
func (f *BoolFlag) Apply(set *flag.FlagSet) error
|
||
Apply saves the flagSet for later usage calls, then calls the wrapped
|
||
BoolFlag.Apply
|
||
|
||
func (f *BoolFlag) ApplyInputSourceValue(cCtx *cli.Context, isc InputSourceContext) error
|
||
ApplyInputSourceValue applies a Bool value to the flagSet if required
|
||
|
||
type DurationFlag struct {
|
||
*cli.DurationFlag
|
||
// Has unexported fields.
|
||
}
|
||
DurationFlag is the flag type that wraps cli.DurationFlag to allow for other
|
||
values to be specified
|
||
|
||
func NewDurationFlag(fl *cli.DurationFlag) *DurationFlag
|
||
NewDurationFlag creates a new DurationFlag
|
||
|
||
func (f *DurationFlag) Apply(set *flag.FlagSet) error
|
||
Apply saves the flagSet for later usage calls, then calls the wrapped
|
||
DurationFlag.Apply
|
||
|
||
func (f *DurationFlag) ApplyInputSourceValue(cCtx *cli.Context, isc InputSourceContext) error
|
||
ApplyInputSourceValue applies a Duration value to the flagSet if required
|
||
|
||
type FlagInputSourceExtension interface {
|
||
cli.Flag
|
||
ApplyInputSourceValue(cCtx *cli.Context, isc InputSourceContext) error
|
||
}
|
||
FlagInputSourceExtension is an extension interface of cli.Flag that allows a
|
||
value to be set on the existing parsed flags.
|
||
|
||
type Float64Flag struct {
|
||
*cli.Float64Flag
|
||
// Has unexported fields.
|
||
}
|
||
Float64Flag is the flag type that wraps cli.Float64Flag to allow for other
|
||
values to be specified
|
||
|
||
func NewFloat64Flag(fl *cli.Float64Flag) *Float64Flag
|
||
NewFloat64Flag creates a new Float64Flag
|
||
|
||
func (f *Float64Flag) Apply(set *flag.FlagSet) error
|
||
Apply saves the flagSet for later usage calls, then calls the wrapped
|
||
Float64Flag.Apply
|
||
|
||
func (f *Float64Flag) ApplyInputSourceValue(cCtx *cli.Context, isc InputSourceContext) error
|
||
ApplyInputSourceValue applies a Float64 value to the flagSet if required
|
||
|
||
type Float64SliceFlag struct {
|
||
*cli.Float64SliceFlag
|
||
// Has unexported fields.
|
||
}
|
||
Float64SliceFlag is the flag type that wraps cli.Float64SliceFlag to allow
|
||
for other values to be specified
|
||
|
||
func NewFloat64SliceFlag(fl *cli.Float64SliceFlag) *Float64SliceFlag
|
||
NewFloat64SliceFlag creates a new Float64SliceFlag
|
||
|
||
func (f *Float64SliceFlag) Apply(set *flag.FlagSet) error
|
||
Apply saves the flagSet for later usage calls, then calls the wrapped
|
||
Float64SliceFlag.Apply
|
||
|
||
type GenericFlag struct {
|
||
*cli.GenericFlag
|
||
// Has unexported fields.
|
||
}
|
||
GenericFlag is the flag type that wraps cli.GenericFlag to allow for other
|
||
values to be specified
|
||
|
||
func NewGenericFlag(fl *cli.GenericFlag) *GenericFlag
|
||
NewGenericFlag creates a new GenericFlag
|
||
|
||
func (f *GenericFlag) Apply(set *flag.FlagSet) error
|
||
Apply saves the flagSet for later usage calls, then calls the wrapped
|
||
GenericFlag.Apply
|
||
|
||
func (f *GenericFlag) ApplyInputSourceValue(cCtx *cli.Context, isc InputSourceContext) error
|
||
ApplyInputSourceValue applies a generic value to the flagSet if required
|
||
|
||
type InputSourceContext interface {
|
||
Source() string
|
||
|
||
Int(name string) (int, error)
|
||
Duration(name string) (time.Duration, error)
|
||
Float64(name string) (float64, error)
|
||
String(name string) (string, error)
|
||
StringSlice(name string) ([]string, error)
|
||
IntSlice(name string) ([]int, error)
|
||
Int64Slice(name string) ([]int64, error)
|
||
Generic(name string) (cli.Generic, error)
|
||
Bool(name string) (bool, error)
|
||
|
||
// Has unexported methods.
|
||
}
|
||
InputSourceContext is an interface used to allow other input sources to be
|
||
implemented as needed.
|
||
|
||
Source returns an identifier for the input source. In case of file source it
|
||
should return path to the file.
|
||
|
||
func NewJSONSource(data []byte) (InputSourceContext, error)
|
||
NewJSONSource returns an InputSourceContext suitable for retrieving config
|
||
variables from raw JSON data.
|
||
|
||
func NewJSONSourceFromFile(f string) (InputSourceContext, error)
|
||
NewJSONSourceFromFile returns an InputSourceContext suitable for retrieving
|
||
config variables from a file (or url) containing JSON data.
|
||
|
||
func NewJSONSourceFromReader(r io.Reader) (InputSourceContext, error)
|
||
NewJSONSourceFromReader returns an InputSourceContext suitable for
|
||
retrieving config variables from an io.Reader that returns JSON data.
|
||
|
||
func NewTomlSourceFromFile(file string) (InputSourceContext, error)
|
||
NewTomlSourceFromFile creates a new TOML InputSourceContext from a filepath.
|
||
|
||
func NewYamlSourceFromFile(file string) (InputSourceContext, error)
|
||
NewYamlSourceFromFile creates a new Yaml InputSourceContext from a filepath.
|
||
|
||
type Int64Flag struct {
|
||
*cli.Int64Flag
|
||
// Has unexported fields.
|
||
}
|
||
Int64Flag is the flag type that wraps cli.Int64Flag to allow for other
|
||
values to be specified
|
||
|
||
func NewInt64Flag(fl *cli.Int64Flag) *Int64Flag
|
||
NewInt64Flag creates a new Int64Flag
|
||
|
||
func (f *Int64Flag) Apply(set *flag.FlagSet) error
|
||
Apply saves the flagSet for later usage calls, then calls the wrapped
|
||
Int64Flag.Apply
|
||
|
||
type Int64SliceFlag struct {
|
||
*cli.Int64SliceFlag
|
||
// Has unexported fields.
|
||
}
|
||
Int64SliceFlag is the flag type that wraps cli.Int64SliceFlag to allow for
|
||
other values to be specified
|
||
|
||
func NewInt64SliceFlag(fl *cli.Int64SliceFlag) *Int64SliceFlag
|
||
NewInt64SliceFlag creates a new Int64SliceFlag
|
||
|
||
func (f *Int64SliceFlag) Apply(set *flag.FlagSet) error
|
||
Apply saves the flagSet for later usage calls, then calls the wrapped
|
||
Int64SliceFlag.Apply
|
||
|
||
func (f *Int64SliceFlag) ApplyInputSourceValue(cCtx *cli.Context, isc InputSourceContext) error
|
||
ApplyInputSourceValue applies a Int64Slice value if required
|
||
|
||
type IntFlag struct {
|
||
*cli.IntFlag
|
||
// Has unexported fields.
|
||
}
|
||
IntFlag is the flag type that wraps cli.IntFlag to allow for other values to
|
||
be specified
|
||
|
||
func NewIntFlag(fl *cli.IntFlag) *IntFlag
|
||
NewIntFlag creates a new IntFlag
|
||
|
||
func (f *IntFlag) Apply(set *flag.FlagSet) error
|
||
Apply saves the flagSet for later usage calls, then calls the wrapped
|
||
IntFlag.Apply
|
||
|
||
func (f *IntFlag) ApplyInputSourceValue(cCtx *cli.Context, isc InputSourceContext) error
|
||
ApplyInputSourceValue applies a int value to the flagSet if required
|
||
|
||
type IntSliceFlag struct {
|
||
*cli.IntSliceFlag
|
||
// Has unexported fields.
|
||
}
|
||
IntSliceFlag is the flag type that wraps cli.IntSliceFlag to allow for other
|
||
values to be specified
|
||
|
||
func NewIntSliceFlag(fl *cli.IntSliceFlag) *IntSliceFlag
|
||
NewIntSliceFlag creates a new IntSliceFlag
|
||
|
||
func (f *IntSliceFlag) Apply(set *flag.FlagSet) error
|
||
Apply saves the flagSet for later usage calls, then calls the wrapped
|
||
IntSliceFlag.Apply
|
||
|
||
func (f *IntSliceFlag) ApplyInputSourceValue(cCtx *cli.Context, isc InputSourceContext) error
|
||
ApplyInputSourceValue applies a IntSlice value if required
|
||
|
||
type MapInputSource struct {
|
||
// Has unexported fields.
|
||
}
|
||
MapInputSource implements InputSourceContext to return data from the map
|
||
that is loaded.
|
||
|
||
func NewMapInputSource(file string, valueMap map[interface{}]interface{}) *MapInputSource
|
||
NewMapInputSource creates a new MapInputSource for implementing custom input
|
||
sources.
|
||
|
||
func (fsm *MapInputSource) Bool(name string) (bool, error)
|
||
Bool returns an bool from the map otherwise returns false
|
||
|
||
func (fsm *MapInputSource) Duration(name string) (time.Duration, error)
|
||
Duration returns a duration from the map if it exists otherwise returns 0
|
||
|
||
func (fsm *MapInputSource) Float64(name string) (float64, error)
|
||
Float64 returns an float64 from the map if it exists otherwise returns 0
|
||
|
||
func (fsm *MapInputSource) Generic(name string) (cli.Generic, error)
|
||
Generic returns an cli.Generic from the map if it exists otherwise returns
|
||
nil
|
||
|
||
func (fsm *MapInputSource) Int(name string) (int, error)
|
||
Int returns an int from the map if it exists otherwise returns 0
|
||
|
||
func (fsm *MapInputSource) Int64Slice(name string) ([]int64, error)
|
||
Int64Slice returns an []int64 from the map if it exists otherwise returns
|
||
nil
|
||
|
||
func (fsm *MapInputSource) IntSlice(name string) ([]int, error)
|
||
IntSlice returns an []int from the map if it exists otherwise returns nil
|
||
|
||
func (fsm *MapInputSource) Source() string
|
||
Source returns the path of the source file
|
||
|
||
func (fsm *MapInputSource) String(name string) (string, error)
|
||
String returns a string from the map if it exists otherwise returns an empty
|
||
string
|
||
|
||
func (fsm *MapInputSource) StringSlice(name string) ([]string, error)
|
||
StringSlice returns an []string from the map if it exists otherwise returns
|
||
nil
|
||
|
||
type PathFlag struct {
|
||
*cli.PathFlag
|
||
// Has unexported fields.
|
||
}
|
||
PathFlag is the flag type that wraps cli.PathFlag to allow for other values
|
||
to be specified
|
||
|
||
func NewPathFlag(fl *cli.PathFlag) *PathFlag
|
||
NewPathFlag creates a new PathFlag
|
||
|
||
func (f *PathFlag) Apply(set *flag.FlagSet) error
|
||
Apply saves the flagSet for later usage calls, then calls the wrapped
|
||
PathFlag.Apply
|
||
|
||
func (f *PathFlag) ApplyInputSourceValue(cCtx *cli.Context, isc InputSourceContext) error
|
||
ApplyInputSourceValue applies a Path value to the flagSet if required
|
||
|
||
type StringFlag struct {
|
||
*cli.StringFlag
|
||
// Has unexported fields.
|
||
}
|
||
StringFlag is the flag type that wraps cli.StringFlag to allow for other
|
||
values to be specified
|
||
|
||
func NewStringFlag(fl *cli.StringFlag) *StringFlag
|
||
NewStringFlag creates a new StringFlag
|
||
|
||
func (f *StringFlag) Apply(set *flag.FlagSet) error
|
||
Apply saves the flagSet for later usage calls, then calls the wrapped
|
||
StringFlag.Apply
|
||
|
||
func (f *StringFlag) ApplyInputSourceValue(cCtx *cli.Context, isc InputSourceContext) error
|
||
ApplyInputSourceValue applies a String value to the flagSet if required
|
||
|
||
type StringSliceFlag struct {
|
||
*cli.StringSliceFlag
|
||
// Has unexported fields.
|
||
}
|
||
StringSliceFlag is the flag type that wraps cli.StringSliceFlag to allow for
|
||
other values to be specified
|
||
|
||
func NewStringSliceFlag(fl *cli.StringSliceFlag) *StringSliceFlag
|
||
NewStringSliceFlag creates a new StringSliceFlag
|
||
|
||
func (f *StringSliceFlag) Apply(set *flag.FlagSet) error
|
||
Apply saves the flagSet for later usage calls, then calls the wrapped
|
||
StringSliceFlag.Apply
|
||
|
||
func (f *StringSliceFlag) ApplyInputSourceValue(cCtx *cli.Context, isc InputSourceContext) error
|
||
ApplyInputSourceValue applies a StringSlice value to the flagSet if required
|
||
|
||
type Uint64Flag struct {
|
||
*cli.Uint64Flag
|
||
// Has unexported fields.
|
||
}
|
||
Uint64Flag is the flag type that wraps cli.Uint64Flag to allow for other
|
||
values to be specified
|
||
|
||
func NewUint64Flag(fl *cli.Uint64Flag) *Uint64Flag
|
||
NewUint64Flag creates a new Uint64Flag
|
||
|
||
func (f *Uint64Flag) Apply(set *flag.FlagSet) error
|
||
Apply saves the flagSet for later usage calls, then calls the wrapped
|
||
Uint64Flag.Apply
|
||
|
||
type UintFlag struct {
|
||
*cli.UintFlag
|
||
// Has unexported fields.
|
||
}
|
||
UintFlag is the flag type that wraps cli.UintFlag to allow for other values
|
||
to be specified
|
||
|
||
func NewUintFlag(fl *cli.UintFlag) *UintFlag
|
||
NewUintFlag creates a new UintFlag
|
||
|
||
func (f *UintFlag) Apply(set *flag.FlagSet) error
|
||
Apply saves the flagSet for later usage calls, then calls the wrapped
|
||
UintFlag.Apply
|
||
|