22773b14c1
by defining `cli.DefaultFlagStringFunc` with a default value that uses `withEnvHint`, conditionally running a given flag's `FormatValueHelp` if present. Closes #257
29 lines
1.2 KiB
Go
29 lines
1.2 KiB
Go
package cli
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// An action to execute when the bash-completion flag is set
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type BashCompleteFunc func(*Context)
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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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type BeforeFunc func(*Context) error
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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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type AfterFunc func(*Context) error
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// The action to execute when no subcommands are specified
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type ActionFunc func(*Context) error
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// Execute this function if the proper command cannot be found
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type CommandNotFoundFunc func(*Context, string)
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// Execute this function if an usage error occurs. This is useful for displaying
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// customized usage error messages. This function is able to replace the
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// original error messages. If this function is not set, the "Incorrect usage"
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// is displayed and the execution is interrupted.
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type OnUsageErrorFunc func(context *Context, err error, isSubcommand bool) error
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// FlagStringFunc is used by the help generation to display a flag, which is
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// expected to be a single line.
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type FlagStringFunc func(Flag) string
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