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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>
87 lines
2.4 KiB
Go
87 lines
2.4 KiB
Go
// Copyright 2017 The Gitea Authors. 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 repo
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import (
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"context"
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"fmt"
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"strings"
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"code.gitea.io/gitea/models/db"
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"code.gitea.io/gitea/modules/util"
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)
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// ErrRedirectNotExist represents a "RedirectNotExist" kind of error.
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type ErrRedirectNotExist struct {
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OwnerID int64
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RepoName string
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}
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// IsErrRedirectNotExist check if an error is an ErrRepoRedirectNotExist.
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func IsErrRedirectNotExist(err error) bool {
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_, ok := err.(ErrRedirectNotExist)
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return ok
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}
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func (err ErrRedirectNotExist) Error() string {
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return fmt.Sprintf("repository redirect does not exist [uid: %d, name: %s]", err.OwnerID, err.RepoName)
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}
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func (err ErrRedirectNotExist) Unwrap() error {
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return util.ErrNotExist
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}
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// Redirect represents that a repo name should be redirected to another
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type Redirect struct {
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ID int64 `xorm:"pk autoincr"`
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OwnerID int64 `xorm:"UNIQUE(s)"`
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LowerName string `xorm:"UNIQUE(s) INDEX NOT NULL"`
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RedirectRepoID int64 // repoID to redirect to
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}
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// TableName represents real table name in database
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func (Redirect) TableName() string {
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return "repo_redirect"
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}
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func init() {
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db.RegisterModel(new(Redirect))
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}
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// LookupRedirect look up if a repository has a redirect name
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func LookupRedirect(ownerID int64, repoName string) (int64, error) {
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repoName = strings.ToLower(repoName)
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redirect := &Redirect{OwnerID: ownerID, LowerName: repoName}
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if has, err := db.GetEngine(db.DefaultContext).Get(redirect); err != nil {
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return 0, err
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} else if !has {
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return 0, ErrRedirectNotExist{OwnerID: ownerID, RepoName: repoName}
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}
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return redirect.RedirectRepoID, nil
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}
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// NewRedirect create a new repo redirect
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func NewRedirect(ctx context.Context, ownerID, repoID int64, oldRepoName, newRepoName string) error {
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oldRepoName = strings.ToLower(oldRepoName)
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newRepoName = strings.ToLower(newRepoName)
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if err := DeleteRedirect(ctx, ownerID, newRepoName); err != nil {
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return err
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}
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return db.Insert(ctx, &Redirect{
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OwnerID: ownerID,
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LowerName: oldRepoName,
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RedirectRepoID: repoID,
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})
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}
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// DeleteRedirect delete any redirect from the specified repo name to
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// anything else
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func DeleteRedirect(ctx context.Context, ownerID int64, repoName string) error {
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repoName = strings.ToLower(repoName)
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_, err := db.GetEngine(ctx).Delete(&Redirect{OwnerID: ownerID, LowerName: repoName})
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return err
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}
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