mirror of
https://codeberg.org/forgejo/forgejo.git
synced 2024-12-24 08:06:49 -05:00
716fcfcf72
A lot of our code is repeatedly testing if individual errors are specific types of Not Exist errors. This is repetitative and unnecesary. `Unwrap() error` provides a common way of labelling an error as a NotExist error and we can/should use this. This PR has chosen to use the common `io/fs` errors e.g. `fs.ErrNotExist` for our errors. This is in some ways not completely correct as these are not filesystem errors but it seems like a reasonable thing to do and would allow us to simplify a lot of our code to `errors.Is(err, fs.ErrNotExist)` instead of `package.IsErr...NotExist(err)` I am open to suggestions to use a different base error - perhaps `models/db.ErrNotExist` if that would be felt to be better. Signed-off-by: Andrew Thornton <art27@cantab.net> Co-authored-by: delvh <dev.lh@web.de>
37 lines
1.1 KiB
Go
37 lines
1.1 KiB
Go
// Copyright 2022 The Gitea Authors. All rights reserved.
|
|
// Use of this source code is governed by a MIT-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
package util
|
|
|
|
import (
|
|
"errors"
|
|
)
|
|
|
|
// 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
|
|
}
|