forked from TrueCloudLab/restic
38 lines
950 B
Go
38 lines
950 B
Go
package errors
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import "fmt"
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// fatalError is an error that should be printed to the user, then the program
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// should exit with an error code.
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type fatalError string
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func (e fatalError) Error() string {
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return string(e)
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}
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func (e fatalError) Fatal() bool {
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return true
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}
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// Fataler is an error which should be printed to the user directly.
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// Afterwards, the program should exit with an error.
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type Fataler interface {
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Fatal() bool
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}
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// IsFatal returns true if err is a fatal message that should be printed to the
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// user. Then, the program should exit.
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func IsFatal(err error) bool {
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e, ok := err.(Fataler)
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return ok && e.Fatal()
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}
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// Fatal returns a wrapped error which implements the Fataler interface.
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func Fatal(s string) error {
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return Wrap(fatalError(s), "Fatal")
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}
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// Fatalf returns an error which implements the Fataler interface.
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func Fatalf(s string, data ...interface{}) error {
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return fatalError(fmt.Sprintf(s, data...))
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}
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