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3fef47b41c
Related to https://github.com/go-gitea/gitea/pull/22262#discussion_r1059010774 Signed-off-by: Andrew Thornton <art27@cantab.net> Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com> Co-authored-by: zeripath <art27@cantab.net> Co-authored-by: Lauris BH <lauris@nix.lv>
66 lines
2.3 KiB
Go
66 lines
2.3 KiB
Go
// Copyright 2022 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package util
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import (
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"errors"
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"fmt"
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)
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// Common Errors forming the base of our error system
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//
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// Many Errors returned by Gitea can be tested against these errors
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// using errors.Is.
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var (
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ErrInvalidArgument = errors.New("invalid argument")
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ErrPermissionDenied = errors.New("permission denied")
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ErrAlreadyExist = errors.New("resource already exists")
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ErrNotExist = errors.New("resource does not exist")
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)
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// SilentWrap provides a simple wrapper for a wrapped error where the wrapped error message plays no part in the error message
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// Especially useful for "untyped" errors created with "errors.New(…)" that can be classified as 'invalid argument', 'permission denied', 'exists already', or 'does not exist'
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type SilentWrap struct {
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Message string
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Err error
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}
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// Error returns the message
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func (w SilentWrap) Error() string {
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return w.Message
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}
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// Unwrap returns the underlying error
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func (w SilentWrap) Unwrap() error {
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return w.Err
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}
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// NewSilentWrapErrorf returns an error that formats as the given text but unwraps as the provided error
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func NewSilentWrapErrorf(unwrap error, message string, args ...interface{}) error {
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if len(args) == 0 {
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return SilentWrap{Message: message, Err: unwrap}
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}
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return SilentWrap{Message: fmt.Sprintf(message, args...), Err: unwrap}
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}
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// NewInvalidArgumentErrorf returns an error that formats as the given text but unwraps as an ErrInvalidArgument
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func NewInvalidArgumentErrorf(message string, args ...interface{}) error {
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return NewSilentWrapErrorf(ErrInvalidArgument, message, args...)
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}
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// NewPermissionDeniedErrorf returns an error that formats as the given text but unwraps as an ErrPermissionDenied
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func NewPermissionDeniedErrorf(message string, args ...interface{}) error {
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return NewSilentWrapErrorf(ErrPermissionDenied, message, args...)
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}
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// NewAlreadyExistErrorf returns an error that formats as the given text but unwraps as an ErrAlreadyExist
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func NewAlreadyExistErrorf(message string, args ...interface{}) error {
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return NewSilentWrapErrorf(ErrAlreadyExist, message, args...)
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}
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// NewNotExistErrorf returns an error that formats as the given text but unwraps as an ErrNotExist
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func NewNotExistErrorf(message string, args ...interface{}) error {
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return NewSilentWrapErrorf(ErrNotExist, message, args...)
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}
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