11d45572f9
This will allow users to customize the prefix section or env hint section of the flag entries in the help menu without having to reimplement the rest of the logic required in defining FlagStringer.
37 lines
1.6 KiB
Go
37 lines
1.6 KiB
Go
package cli
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// BashCompleteFunc is an action to execute when the bash-completion flag is set
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type BashCompleteFunc func(*Context)
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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 BeforeFunc func(*Context) error
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// AfterFunc is an action to execute after any subcommands are run, but after the
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// subcommand has finished it is run even if Action() panics
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type AfterFunc func(*Context) error
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// ActionFunc is the action to execute when no subcommands are specified
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type ActionFunc func(*Context) error
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// CommandNotFoundFunc is executed if the proper command cannot be found
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type CommandNotFoundFunc func(*Context, string)
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// OnUsageErrorFunc is executed 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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// FlagNamePrefixFunc is used by the default FlagStringFunc to create prefix
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// text for a flag's full name.
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type FlagNamePrefixFunc func(fullName, placeholder string) string
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// FlagEnvHintFunc is used by the default FlagStringFunc to annotate flag help
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// with the environment variable details.
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type FlagEnvHintFunc func(envVar, str string) string
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