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116 lines
3.1 KiB
116 lines
3.1 KiB
// Copyright 2020 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 repository
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import (
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"fmt"
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"code.gitea.io/gitea/models"
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"code.gitea.io/gitea/modules/git"
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)
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// GetBranch returns a branch by its name
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func GetBranch(repo *models.Repository, branch string) (*git.Branch, error) {
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if len(branch) == 0 {
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return nil, fmt.Errorf("GetBranch: empty string for branch")
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}
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gitRepo, err := git.OpenRepository(repo.RepoPath())
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if err != nil {
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return nil, err
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}
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defer gitRepo.Close()
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return gitRepo.GetBranch(branch)
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}
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// GetBranches returns branches from the repository, skipping skip initial branches and
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// returning at most limit branches, or all branches if limit is 0.
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func GetBranches(repo *models.Repository, skip, limit int) ([]*git.Branch, int, error) {
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return git.GetBranchesByPath(repo.RepoPath(), skip, limit)
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}
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// checkBranchName validates branch name with existing repository branches
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func checkBranchName(repo *models.Repository, name string) error {
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gitRepo, err := git.OpenRepository(repo.RepoPath())
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if err != nil {
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return err
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}
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defer gitRepo.Close()
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branches, _, err := GetBranches(repo, 0, 0)
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if err != nil {
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return err
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}
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for _, branch := range branches {
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if branch.Name == name {
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return models.ErrBranchAlreadyExists{
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BranchName: branch.Name,
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}
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} else if (len(branch.Name) < len(name) && branch.Name+"/" == name[0:len(branch.Name)+1]) ||
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(len(branch.Name) > len(name) && name+"/" == branch.Name[0:len(name)+1]) {
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return models.ErrBranchNameConflict{
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BranchName: branch.Name,
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}
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}
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}
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if _, err := gitRepo.GetTag(name); err == nil {
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return models.ErrTagAlreadyExists{
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TagName: name,
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}
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}
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return nil
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}
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// CreateNewBranch creates a new repository branch
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func CreateNewBranch(doer *models.User, repo *models.Repository, oldBranchName, branchName string) (err error) {
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// Check if branch name can be used
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if err := checkBranchName(repo, branchName); err != nil {
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return err
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}
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if !git.IsBranchExist(repo.RepoPath(), oldBranchName) {
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return models.ErrBranchDoesNotExist{
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BranchName: oldBranchName,
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}
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}
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if err := git.Push(repo.RepoPath(), git.PushOptions{
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Remote: repo.RepoPath(),
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Branch: fmt.Sprintf("%s:%s%s", oldBranchName, git.BranchPrefix, branchName),
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Env: models.PushingEnvironment(doer, repo),
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}); err != nil {
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if git.IsErrPushOutOfDate(err) || git.IsErrPushRejected(err) {
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return err
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}
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return fmt.Errorf("Push: %v", err)
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}
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return nil
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}
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// CreateNewBranchFromCommit creates a new repository branch
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func CreateNewBranchFromCommit(doer *models.User, repo *models.Repository, commit, branchName string) (err error) {
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// Check if branch name can be used
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if err := checkBranchName(repo, branchName); err != nil {
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return err
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}
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if err := git.Push(repo.RepoPath(), git.PushOptions{
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Remote: repo.RepoPath(),
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Branch: fmt.Sprintf("%s:%s%s", commit, git.BranchPrefix, branchName),
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Env: models.PushingEnvironment(doer, repo),
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}); err != nil {
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if git.IsErrPushOutOfDate(err) || git.IsErrPushRejected(err) {
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return err
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}
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return fmt.Errorf("Push: %v", err)
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}
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return nil
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}
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