33 lines
832 B
Go
33 lines
832 B
Go
package kong
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import "errors"
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const (
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exitOk = 0
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exitNotOk = 1
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// Semantic exit codes from https://github.com/square/exit?tab=readme-ov-file#about
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exitUsageError = 80
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)
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// ExitCoder is an interface that may be implemented by an error value to
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// provide an integer exit code. The method ExitCode should return an integer
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// that is intended to be used as the exit code for the application.
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type ExitCoder interface {
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ExitCode() int
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}
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// exitCodeFromError returns the exit code for the given error.
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// If err implements the exitCoder interface, the ExitCode method is called.
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// Otherwise, exitCodeFromError returns 0 if err is nil, and 1 if it is not.
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func exitCodeFromError(err error) int {
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var e ExitCoder
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if errors.As(err, &e) {
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return e.ExitCode()
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} else if err == nil {
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return exitOk
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}
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return exitNotOk
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}
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