Some repository refactors (#17950)

* some repository refactors

* remove unnecessary code

* Fix test

* Remove unnecessary banner

models/repo/update.go

@@ -0,0 +1,179 @@
+// Copyright 2021 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 repo
+
+import (
+	"context"
+	"fmt"
+	"strings"
+	"time"
+
+	"code.gitea.io/gitea/models/db"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/util"
+)
+
+// UpdateRepositoryOwnerNames updates repository owner_names (this should only be used when the ownerName has changed case)
+func UpdateRepositoryOwnerNames(ownerID int64, ownerName string) error {
+	if ownerID == 0 {
+		return nil
+	}
+	ctx, committer, err := db.TxContext()
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	if _, err := db.GetEngine(ctx).Where("owner_id = ?", ownerID).Cols("owner_name").Update(&Repository{
+		OwnerName: ownerName,
+	}); err != nil {
+		return err
+	}
+
+	return committer.Commit()
+}
+
+// UpdateRepositoryUpdatedTime updates a repository's updated time
+func UpdateRepositoryUpdatedTime(repoID int64, updateTime time.Time) error {
+	_, err := db.GetEngine(db.DefaultContext).Exec("UPDATE repository SET updated_unix = ? WHERE id = ?", updateTime.Unix(), repoID)
+	return err
+}
+
+// UpdateRepositoryColsCtx updates repository's columns
+func UpdateRepositoryColsCtx(ctx context.Context, repo *Repository, cols ...string) error {
+	_, err := db.GetEngine(ctx).ID(repo.ID).Cols(cols...).Update(repo)
+	return err
+}
+
+// UpdateRepositoryCols updates repository's columns
+func UpdateRepositoryCols(repo *Repository, cols ...string) error {
+	return UpdateRepositoryColsCtx(db.DefaultContext, repo, cols...)
+}
+
+// ErrReachLimitOfRepo represents a "ReachLimitOfRepo" kind of error.
+type ErrReachLimitOfRepo struct {
+	Limit int
+}
+
+// IsErrReachLimitOfRepo checks if an error is a ErrReachLimitOfRepo.
+func IsErrReachLimitOfRepo(err error) bool {
+	_, ok := err.(ErrReachLimitOfRepo)
+	return ok
+}
+
+func (err ErrReachLimitOfRepo) Error() string {
+	return fmt.Sprintf("user has reached maximum limit of repositories [limit: %d]", err.Limit)
+}
+
+// ErrRepoAlreadyExist represents a "RepoAlreadyExist" kind of error.
+type ErrRepoAlreadyExist struct {
+	Uname string
+	Name  string
+}
+
+// IsErrRepoAlreadyExist checks if an error is a ErrRepoAlreadyExist.
+func IsErrRepoAlreadyExist(err error) bool {
+	_, ok := err.(ErrRepoAlreadyExist)
+	return ok
+}
+
+func (err ErrRepoAlreadyExist) Error() string {
+	return fmt.Sprintf("repository already exists [uname: %s, name: %s]", err.Uname, err.Name)
+}
+
+// ErrRepoFilesAlreadyExist represents a "RepoFilesAlreadyExist" kind of error.
+type ErrRepoFilesAlreadyExist struct {
+	Uname string
+	Name  string
+}
+
+// IsErrRepoFilesAlreadyExist checks if an error is a ErrRepoAlreadyExist.
+func IsErrRepoFilesAlreadyExist(err error) bool {
+	_, ok := err.(ErrRepoFilesAlreadyExist)
+	return ok
+}
+
+func (err ErrRepoFilesAlreadyExist) Error() string {
+	return fmt.Sprintf("repository files already exist [uname: %s, name: %s]", err.Uname, err.Name)
+}
+
+// CheckCreateRepository check if could created a repository
+func CheckCreateRepository(doer, u *user_model.User, name string, overwriteOrAdopt bool) error {
+	if !doer.CanCreateRepo() {
+		return ErrReachLimitOfRepo{u.MaxRepoCreation}
+	}
+
+	if err := IsUsableRepoName(name); err != nil {
+		return err
+	}
+
+	has, err := IsRepositoryExist(u, name)
+	if err != nil {
+		return fmt.Errorf("IsRepositoryExist: %v", err)
+	} else if has {
+		return ErrRepoAlreadyExist{u.Name, name}
+	}
+
+	repoPath := RepoPath(u.Name, name)
+	isExist, err := util.IsExist(repoPath)
+	if err != nil {
+		log.Error("Unable to check if %s exists. Error: %v", repoPath, err)
+		return err
+	}
+	if !overwriteOrAdopt && isExist {
+		return ErrRepoFilesAlreadyExist{u.Name, name}
+	}
+	return nil
+}
+
+// ChangeRepositoryName changes all corresponding setting from old repository name to new one.
+func ChangeRepositoryName(doer *user_model.User, repo *Repository, newRepoName string) (err error) {
+	oldRepoName := repo.Name
+	newRepoName = strings.ToLower(newRepoName)
+	if err = IsUsableRepoName(newRepoName); err != nil {
+		return err
+	}
+
+	if err := repo.GetOwner(db.DefaultContext); err != nil {
+		return err
+	}
+
+	has, err := IsRepositoryExist(repo.Owner, newRepoName)
+	if err != nil {
+		return fmt.Errorf("IsRepositoryExist: %v", err)
+	} else if has {
+		return ErrRepoAlreadyExist{repo.Owner.Name, newRepoName}
+	}
+
+	newRepoPath := RepoPath(repo.Owner.Name, newRepoName)
+	if err = util.Rename(repo.RepoPath(), newRepoPath); err != nil {
+		return fmt.Errorf("rename repository directory: %v", err)
+	}
+
+	wikiPath := repo.WikiPath()
+	isExist, err := util.IsExist(wikiPath)
+	if err != nil {
+		log.Error("Unable to check if %s exists. Error: %v", wikiPath, err)
+		return err
+	}
+	if isExist {
+		if err = util.Rename(wikiPath, WikiPath(repo.Owner.Name, newRepoName)); err != nil {
+			return fmt.Errorf("rename repository wiki: %v", err)
+		}
+	}
+
+	ctx, committer, err := db.TxContext()
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	if err := NewRedirect(ctx, repo.Owner.ID, repo.ID, oldRepoName, newRepoName); err != nil {
+		return err
+	}
+
+	return committer.Commit()
+}