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- // Copyright 2020 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 repository
-
- import (
- "fmt"
-
- "code.gitea.io/gitea/models"
- "code.gitea.io/gitea/modules/git"
- "code.gitea.io/gitea/modules/log"
- )
-
- // GetBranch returns a branch by its name
- func GetBranch(repo *models.Repository, branch string) (*git.Branch, error) {
- gitRepo, err := git.OpenRepository(repo.RepoPath())
- if err != nil {
- return nil, err
- }
- defer gitRepo.Close()
-
- return gitRepo.GetBranch(branch)
- }
-
- // GetBranches returns all the branches of a repository
- func GetBranches(repo *models.Repository) ([]*git.Branch, error) {
- return git.GetBranchesByPath(repo.RepoPath())
- }
-
- // checkBranchName validates branch name with existing repository branches
- func checkBranchName(repo *models.Repository, name string) error {
- gitRepo, err := git.OpenRepository(repo.RepoPath())
- if err != nil {
- return err
- }
- defer gitRepo.Close()
-
- branches, err := GetBranches(repo)
- if err != nil {
- return err
- }
-
- for _, branch := range branches {
- if branch.Name == name {
- return models.ErrBranchAlreadyExists{
- BranchName: branch.Name,
- }
- } else if (len(branch.Name) < len(name) && branch.Name+"/" == name[0:len(branch.Name)+1]) ||
- (len(branch.Name) > len(name) && name+"/" == branch.Name[0:len(name)+1]) {
- return models.ErrBranchNameConflict{
- BranchName: branch.Name,
- }
- }
- }
-
- if _, err := gitRepo.GetTag(name); err == nil {
- return models.ErrTagAlreadyExists{
- TagName: name,
- }
- }
-
- return nil
- }
-
- // CreateNewBranch creates a new repository branch
- func CreateNewBranch(doer *models.User, repo *models.Repository, oldBranchName, branchName string) (err error) {
- // Check if branch name can be used
- if err := checkBranchName(repo, branchName); err != nil {
- return err
- }
-
- if !git.IsBranchExist(repo.RepoPath(), oldBranchName) {
- return fmt.Errorf("OldBranch: %s does not exist. Cannot create new branch from this", oldBranchName)
- }
-
- basePath, err := models.CreateTemporaryPath("branch-maker")
- if err != nil {
- return err
- }
- defer func() {
- if err := models.RemoveTemporaryPath(basePath); err != nil {
- log.Error("CreateNewBranch: RemoveTemporaryPath: %s", err)
- }
- }()
-
- if err := git.Clone(repo.RepoPath(), basePath, git.CloneRepoOptions{
- Bare: true,
- Shared: true,
- }); err != nil {
- log.Error("Failed to clone repository: %s (%v)", repo.FullName(), err)
- return fmt.Errorf("Failed to clone repository: %s (%v)", repo.FullName(), err)
- }
-
- gitRepo, err := git.OpenRepository(basePath)
- if err != nil {
- log.Error("Unable to open temporary repository: %s (%v)", basePath, err)
- return fmt.Errorf("Failed to open new temporary repository in: %s %v", basePath, err)
- }
- defer gitRepo.Close()
-
- if err = gitRepo.CreateBranch(branchName, oldBranchName); err != nil {
- log.Error("Unable to create branch: %s from %s. (%v)", branchName, oldBranchName, err)
- return fmt.Errorf("Unable to create branch: %s from %s. (%v)", branchName, oldBranchName, err)
- }
-
- if err = git.Push(basePath, git.PushOptions{
- Remote: "origin",
- Branch: branchName,
- Env: models.PushingEnvironment(doer, repo),
- }); err != nil {
- return fmt.Errorf("Push: %v", err)
- }
-
- return nil
- }
-
- // CreateNewBranchFromCommit creates a new repository branch
- func CreateNewBranchFromCommit(doer *models.User, repo *models.Repository, commit, branchName string) (err error) {
- // Check if branch name can be used
- if err := checkBranchName(repo, branchName); err != nil {
- return err
- }
- basePath, err := models.CreateTemporaryPath("branch-maker")
- if err != nil {
- return err
- }
- defer func() {
- if err := models.RemoveTemporaryPath(basePath); err != nil {
- log.Error("CreateNewBranchFromCommit: RemoveTemporaryPath: %s", err)
- }
- }()
-
- if err := git.Clone(repo.RepoPath(), basePath, git.CloneRepoOptions{
- Bare: true,
- Shared: true,
- }); err != nil {
- log.Error("Failed to clone repository: %s (%v)", repo.FullName(), err)
- return fmt.Errorf("Failed to clone repository: %s (%v)", repo.FullName(), err)
- }
-
- gitRepo, err := git.OpenRepository(basePath)
- if err != nil {
- log.Error("Unable to open temporary repository: %s (%v)", basePath, err)
- return fmt.Errorf("Failed to open new temporary repository in: %s %v", basePath, err)
- }
- defer gitRepo.Close()
-
- if err = gitRepo.CreateBranch(branchName, commit); err != nil {
- log.Error("Unable to create branch: %s from %s. (%v)", branchName, commit, err)
- return fmt.Errorf("Unable to create branch: %s from %s. (%v)", branchName, commit, err)
- }
-
- if err = git.Push(basePath, git.PushOptions{
- Remote: "origin",
- Branch: branchName,
- Env: models.PushingEnvironment(doer, repo),
- }); err != nil {
- return fmt.Errorf("Push: %v", err)
- }
-
- return nil
- }
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