160 lines
4.2 KiB
Go
160 lines
4.2 KiB
Go
// Copyright 2015 The Gogs Authors. All rights reserved.
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// Copyright 2018 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package git
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import (
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"context"
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"errors"
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"fmt"
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"strings"
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)
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// BranchPrefix base dir of the branch information file store on git
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const BranchPrefix = "refs/heads/"
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// IsReferenceExist returns true if given reference exists in the repository.
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func IsReferenceExist(ctx context.Context, repoPath, name string) bool {
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_, _, err := NewCommand(ctx, "show-ref", "--verify").AddDashesAndList(name).RunStdString(&RunOpts{Dir: repoPath})
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return err == nil
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}
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// IsBranchExist returns true if given branch exists in the repository.
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func IsBranchExist(ctx context.Context, repoPath, name string) bool {
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return IsReferenceExist(ctx, repoPath, BranchPrefix+name)
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}
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// Branch represents a Git branch.
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type Branch struct {
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Name string
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Path string
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gitRepo *Repository
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}
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// GetHEADBranch returns corresponding branch of HEAD.
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func (repo *Repository) GetHEADBranch() (*Branch, error) {
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if repo == nil {
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return nil, fmt.Errorf("nil repo")
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}
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stdout, _, err := NewCommand(repo.Ctx, "symbolic-ref", "HEAD").RunStdString(&RunOpts{Dir: repo.Path})
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if err != nil {
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return nil, err
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}
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stdout = strings.TrimSpace(stdout)
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if !strings.HasPrefix(stdout, BranchPrefix) {
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return nil, fmt.Errorf("invalid HEAD branch: %v", stdout)
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}
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return &Branch{
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Name: stdout[len(BranchPrefix):],
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Path: stdout,
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gitRepo: repo,
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}, nil
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}
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func GetDefaultBranch(ctx context.Context, repoPath string) (string, error) {
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stdout, _, err := NewCommand(ctx, "symbolic-ref", "HEAD").RunStdString(&RunOpts{Dir: repoPath})
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if err != nil {
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return "", err
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}
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stdout = strings.TrimSpace(stdout)
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if !strings.HasPrefix(stdout, BranchPrefix) {
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return "", errors.New("the HEAD is not a branch: " + stdout)
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}
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return strings.TrimPrefix(stdout, BranchPrefix), nil
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}
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// GetBranch returns a branch by it's name
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func (repo *Repository) GetBranch(branch string) (*Branch, error) {
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if !repo.IsBranchExist(branch) {
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return nil, ErrBranchNotExist{branch}
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}
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return &Branch{
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Path: repo.Path,
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Name: branch,
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gitRepo: repo,
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}, nil
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}
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// GetBranches returns a slice of *git.Branch
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func (repo *Repository) GetBranches(skip, limit int) ([]*Branch, int, error) {
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brs, countAll, err := repo.GetBranchNames(skip, limit)
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if err != nil {
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return nil, 0, err
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}
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branches := make([]*Branch, len(brs))
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for i := range brs {
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branches[i] = &Branch{
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Path: repo.Path,
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Name: brs[i],
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gitRepo: repo,
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}
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}
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return branches, countAll, nil
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}
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// DeleteBranchOptions Option(s) for delete branch
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type DeleteBranchOptions struct {
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Force bool
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}
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// DeleteBranch delete a branch by name on repository.
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func (repo *Repository) DeleteBranch(name string, opts DeleteBranchOptions) error {
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cmd := NewCommand(repo.Ctx, "branch")
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if opts.Force {
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cmd.AddArguments("-D")
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} else {
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cmd.AddArguments("-d")
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}
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cmd.AddDashesAndList(name)
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_, _, err := cmd.RunStdString(&RunOpts{Dir: repo.Path})
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return err
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}
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// CreateBranch create a new branch
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func (repo *Repository) CreateBranch(branch, oldbranchOrCommit string) error {
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cmd := NewCommand(repo.Ctx, "branch")
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cmd.AddDashesAndList(branch, oldbranchOrCommit)
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_, _, err := cmd.RunStdString(&RunOpts{Dir: repo.Path})
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return err
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}
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// AddRemote adds a new remote to repository.
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func (repo *Repository) AddRemote(name, url string, fetch bool) error {
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cmd := NewCommand(repo.Ctx, "remote", "add")
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if fetch {
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cmd.AddArguments("-f")
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}
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cmd.AddDynamicArguments(name, url)
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_, _, err := cmd.RunStdString(&RunOpts{Dir: repo.Path})
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return err
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}
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// RemoveRemote removes a remote from repository.
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func (repo *Repository) RemoveRemote(name string) error {
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_, _, err := NewCommand(repo.Ctx, "remote", "rm").AddDynamicArguments(name).RunStdString(&RunOpts{Dir: repo.Path})
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return err
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}
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// GetCommit returns the head commit of a branch
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func (branch *Branch) GetCommit() (*Commit, error) {
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return branch.gitRepo.GetBranchCommit(branch.Name)
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}
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// RenameBranch rename a branch
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func (repo *Repository) RenameBranch(from, to string) error {
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_, _, err := NewCommand(repo.Ctx, "branch", "-m").AddDynamicArguments(from, to).RunStdString(&RunOpts{Dir: repo.Path})
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return err
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}
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