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mirror of https://github.com/octoleo/restic.git synced 2024-12-11 21:57:58 +00:00
restic/internal/errors/errors.go
2024-02-24 13:47:49 -07:00

71 lines
2.3 KiB
Go

package errors
import (
stderrors "errors"
"fmt"
"github.com/pkg/errors"
)
// New creates a new error based on message. Wrapped so that this package does
// not appear in the stack trace.
var New = errors.New
// Errorf creates an error based on a format string and values. Wrapped so that
// this package does not appear in the stack trace.
var Errorf = errors.Errorf
// Wrap wraps an error retrieved from outside of restic. Wrapped so that this
// package does not appear in the stack trace.
var Wrap = errors.Wrap
// Wrapf returns an error annotating err with the format specifier. If err is
// nil, Wrapf returns nil.
var Wrapf = errors.Wrapf
// WithStack annotates err with a stack trace at the point WithStack was called.
// If err is nil, WithStack returns nil.
var WithStack = errors.WithStack
// Go 1.13-style error handling.
// As finds the first error in err's tree that matches target, and if one is found,
// sets target to that error value and returns true. Otherwise, it returns false.
func As(err error, tgt interface{}) bool { return stderrors.As(err, tgt) }
// Is reports whether any error in err's tree matches target.
func Is(x, y error) bool { return stderrors.Is(x, y) }
// Unwrap returns the result of calling the Unwrap method on err, if err's type contains
// an Unwrap method returning error. Otherwise, Unwrap returns nil.
//
// Unwrap only calls a method of the form "Unwrap() error". In particular Unwrap does not
// unwrap errors returned by [Join].
func Unwrap(err error) error { return stderrors.Unwrap(err) }
// CombineErrors combines multiple errors into a single error after filtering out any nil values.
// If no errors are passed, it returns nil.
// If one error is passed, it simply returns that same error.
func CombineErrors(errors ...error) (err error) {
var combinedErrorMsg string
var multipleErrors bool
for _, errVal := range errors {
if errVal != nil {
if combinedErrorMsg != "" {
combinedErrorMsg += "; " // Separate error messages with a delimiter
multipleErrors = true
} else {
// Set the first error
err = errVal
}
combinedErrorMsg += errVal.Error()
}
}
if combinedErrorMsg == "" {
return nil // If no errors, return nil
} else if !multipleErrors {
return err // If only one error, return that first error
}
return fmt.Errorf("multiple errors occurred: [%s]", combinedErrorMsg)
}