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error.go

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package cli

import (

"strconv"

)

// StatusError reports an unsuccessful exit by a command.

type StatusError struct {

Cause error

Status string

StatusCode int

}

// Error formats the error for printing. If a custom Status is provided,

// it is returned as-is, otherwise it generates a generic error-message

// based on the StatusCode.

func (e StatusError) Error() string {

if e.Status != "" {

return e.Status

}

if e.Cause != nil {

return e.Cause.Error()

}

return "exit status " + strconv.Itoa(e.StatusCode)

}

func (e StatusError) Unwrap() error {

return e.Cause

}