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// Copyright 2022 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package util
import (
"errors"
"fmt"
)
// Common Errors forming the base of our error system
//
// Many Errors returned by Gitea can be tested against these errors
// using errors.Is.
var (
ErrInvalidArgument = errors.New("invalid argument")
ErrPermissionDenied = errors.New("permission denied")
ErrAlreadyExist = errors.New("resource already exists")
ErrNotExist = errors.New("resource does not exist")
)
// SilentWrap provides a simple wrapper for a wrapped error where the wrapped error message plays no part in the error message
// Especially useful for "untyped" errors created with "errors.New(…)" that can be classified as 'invalid argument', 'permission denied', 'exists already', or 'does not exist'
type SilentWrap struct {
Message string
Err error
}
// Error returns the message
func (w SilentWrap) Error() string {
return w.Message
}
// Unwrap returns the underlying error
func (w SilentWrap) Unwrap() error {
return w.Err
}
// NewSilentWrapErrorf returns an error that formats as the given text but unwraps as the provided error
func NewSilentWrapErrorf(unwrap error, message string, args ...any) error {
if len(args) == 0 {
return SilentWrap{Message: message, Err: unwrap}
}
return SilentWrap{Message: fmt.Sprintf(message, args...), Err: unwrap}
}
// NewInvalidArgumentErrorf returns an error that formats as the given text but unwraps as an ErrInvalidArgument
func NewInvalidArgumentErrorf(message string, args ...any) error {
return NewSilentWrapErrorf(ErrInvalidArgument, message, args...)
}
// NewPermissionDeniedErrorf returns an error that formats as the given text but unwraps as an ErrPermissionDenied
func NewPermissionDeniedErrorf(message string, args ...any) error {
return NewSilentWrapErrorf(ErrPermissionDenied, message, args...)
}
// NewAlreadyExistErrorf returns an error that formats as the given text but unwraps as an ErrAlreadyExist
func NewAlreadyExistErrorf(message string, args ...any) error {
return NewSilentWrapErrorf(ErrAlreadyExist, message, args...)
}
// NewNotExistErrorf returns an error that formats as the given text but unwraps as an ErrNotExist
func NewNotExistErrorf(message string, args ...any) error {
return NewSilentWrapErrorf(ErrNotExist, message, args...)
}
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