forgejo/modules/git/repo_branch.go

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// Copyright 2015 The Gogs Authors. All rights reserved.
// Copyright 2018 The Gitea Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package git
import (
"fmt"
"strings"
"gopkg.in/src-d/go-git.v4"
"gopkg.in/src-d/go-git.v4/plumbing"
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)
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// BranchPrefix base dir of the branch information file store on git
const BranchPrefix = "refs/heads/"
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// IsReferenceExist returns true if given reference exists in the repository.
func IsReferenceExist(repoPath, name string) bool {
_, err := NewCommand("show-ref", "--verify", name).RunInDir(repoPath)
return err == nil
}
// IsBranchExist returns true if given branch exists in the repository.
func IsBranchExist(repoPath, name string) bool {
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return IsReferenceExist(repoPath, BranchPrefix+name)
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}
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// IsBranchExist returns true if given branch exists in current repository.
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func (repo *Repository) IsBranchExist(name string) bool {
return IsBranchExist(repo.Path, name)
}
// Branch represents a Git branch.
type Branch struct {
Name string
Path string
}
// GetHEADBranch returns corresponding branch of HEAD.
func (repo *Repository) GetHEADBranch() (*Branch, error) {
stdout, err := NewCommand("symbolic-ref", "HEAD").RunInDir(repo.Path)
if err != nil {
return nil, err
}
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)
}
return &Branch{
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Name: stdout[len(BranchPrefix):],
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Path: stdout,
}, nil
}
// SetDefaultBranch sets default branch of repository.
func (repo *Repository) SetDefaultBranch(name string) error {
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_, err := NewCommand("symbolic-ref", "HEAD", BranchPrefix+name).RunInDir(repo.Path)
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return err
}
// GetBranches returns all branches of the repository.
func (repo *Repository) GetBranches() ([]string, error) {
r, err := git.PlainOpen(repo.Path)
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if err != nil {
return nil, err
}
branchIter, err := r.Branches()
if err != nil {
return nil, err
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}
branches := make([]string, 0)
if err = branchIter.ForEach(func(branch *plumbing.Reference) error {
branches = append(branches, branch.Name().Short())
return nil
}); err != nil {
return nil, err
}
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return branches, nil
}
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// DeleteBranchOptions Option(s) for delete branch
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type DeleteBranchOptions struct {
Force bool
}
// DeleteBranch delete a branch by name on repository.
func (repo *Repository) DeleteBranch(name string, opts DeleteBranchOptions) error {
cmd := NewCommand("branch")
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if opts.Force {
cmd.AddArguments("-D")
} else {
cmd.AddArguments("-d")
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}
cmd.AddArguments(name)
_, err := cmd.RunInDir(repo.Path)
return err
}
// CreateBranch create a new branch
func (repo *Repository) CreateBranch(branch, newBranch string) error {
cmd := NewCommand("branch")
cmd.AddArguments(branch, newBranch)
_, err := cmd.RunInDir(repo.Path)
return err
}
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// AddRemote adds a new remote to repository.
func (repo *Repository) AddRemote(name, url string, fetch bool) error {
cmd := NewCommand("remote", "add")
if fetch {
cmd.AddArguments("-f")
}
cmd.AddArguments(name, url)
_, err := cmd.RunInDir(repo.Path)
return err
}
// RemoveRemote removes a remote from repository.
func (repo *Repository) RemoveRemote(name string) error {
_, err := NewCommand("remote", "remove", name).RunInDir(repo.Path)
return err
}