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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>
53 lines
1.4 KiB
Go
53 lines
1.4 KiB
Go
// Copyright 2022 Gitea. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package foreignreference
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import (
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"fmt"
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"code.gitea.io/gitea/modules/util"
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)
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// ErrLocalIndexNotExist represents a "LocalIndexNotExist" kind of error.
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type ErrLocalIndexNotExist struct {
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RepoID int64
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ForeignIndex int64
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Type string
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}
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// ErrLocalIndexNotExist checks if an error is a ErrLocalIndexNotExist.
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func IsErrLocalIndexNotExist(err error) bool {
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_, ok := err.(ErrLocalIndexNotExist)
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return ok
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}
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func (err ErrLocalIndexNotExist) Error() string {
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return fmt.Sprintf("repository %d has no LocalIndex for ForeignIndex %d of type %s", err.RepoID, err.ForeignIndex, err.Type)
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}
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func (err ErrLocalIndexNotExist) Unwrap() error {
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return util.ErrNotExist
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}
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// ErrForeignIndexNotExist represents a "ForeignIndexNotExist" kind of error.
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type ErrForeignIndexNotExist struct {
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RepoID int64
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LocalIndex int64
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Type string
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}
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// ErrForeignIndexNotExist checks if an error is a ErrForeignIndexNotExist.
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func IsErrForeignIndexNotExist(err error) bool {
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_, ok := err.(ErrForeignIndexNotExist)
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return ok
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}
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func (err ErrForeignIndexNotExist) Error() string {
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return fmt.Sprintf("repository %d has no ForeignIndex for LocalIndex %d of type %s", err.RepoID, err.LocalIndex, err.Type)
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}
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func (err ErrForeignIndexNotExist) Unwrap() error {
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return util.ErrNotExist
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}
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