mirror of
https://codeberg.org/forgejo/forgejo.git
synced 2024-11-29 09:31:11 -05:00
370 lines
9.1 KiB
Go
370 lines
9.1 KiB
Go
// Copyright 2015 The Gogs Authors. All rights reserved.
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// Copyright 2017 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 git
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import (
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"bytes"
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"container/list"
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"errors"
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"fmt"
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"os"
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"path"
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"path/filepath"
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"strconv"
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"strings"
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"time"
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"github.com/unknwon/com"
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"gopkg.in/src-d/go-billy.v4/osfs"
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gogit "gopkg.in/src-d/go-git.v4"
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"gopkg.in/src-d/go-git.v4/plumbing/cache"
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"gopkg.in/src-d/go-git.v4/storage/filesystem"
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)
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// Repository represents a Git repository.
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type Repository struct {
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Path string
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tagCache *ObjectCache
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gogitRepo *gogit.Repository
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gogitStorage *filesystem.Storage
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}
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const prettyLogFormat = `--pretty=format:%H`
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func (repo *Repository) parsePrettyFormatLogToList(logs []byte) (*list.List, error) {
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l := list.New()
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if len(logs) == 0 {
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return l, nil
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}
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parts := bytes.Split(logs, []byte{'\n'})
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for _, commitID := range parts {
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commit, err := repo.GetCommit(string(commitID))
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if err != nil {
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return nil, err
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}
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l.PushBack(commit)
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}
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return l, nil
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}
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// IsRepoURLAccessible checks if given repository URL is accessible.
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func IsRepoURLAccessible(url string) bool {
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_, err := NewCommand("ls-remote", "-q", "-h", url, "HEAD").Run()
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return err == nil
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}
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// InitRepository initializes a new Git repository.
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func InitRepository(repoPath string, bare bool) error {
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err := os.MkdirAll(repoPath, os.ModePerm)
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if err != nil {
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return err
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}
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cmd := NewCommand("init")
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if bare {
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cmd.AddArguments("--bare")
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}
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_, err = cmd.RunInDir(repoPath)
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return err
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}
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// OpenRepository opens the repository at the given path.
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func OpenRepository(repoPath string) (*Repository, error) {
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repoPath, err := filepath.Abs(repoPath)
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if err != nil {
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return nil, err
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} else if !isDir(repoPath) {
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return nil, errors.New("no such file or directory")
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}
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fs := osfs.New(repoPath)
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_, err = fs.Stat(".git")
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if err == nil {
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fs, err = fs.Chroot(".git")
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if err != nil {
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return nil, err
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}
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}
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storage := filesystem.NewStorageWithOptions(fs, cache.NewObjectLRUDefault(), filesystem.Options{KeepDescriptors: true})
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gogitRepo, err := gogit.Open(storage, fs)
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if err != nil {
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return nil, err
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}
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return &Repository{
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Path: repoPath,
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gogitRepo: gogitRepo,
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gogitStorage: storage,
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tagCache: newObjectCache(),
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}, nil
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}
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// IsEmpty Check if repository is empty.
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func (repo *Repository) IsEmpty() (bool, error) {
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var errbuf strings.Builder
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if err := NewCommand("log", "-1").RunInDirPipeline(repo.Path, nil, &errbuf); err != nil {
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if strings.Contains(errbuf.String(), "fatal: bad default revision 'HEAD'") ||
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strings.Contains(errbuf.String(), "fatal: your current branch 'master' does not have any commits yet") {
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return true, nil
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}
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return true, fmt.Errorf("check empty: %v - %s", err, errbuf.String())
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}
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return false, nil
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}
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// CloneRepoOptions options when clone a repository
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type CloneRepoOptions struct {
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Timeout time.Duration
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Mirror bool
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Bare bool
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Quiet bool
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Branch string
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Shared bool
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NoCheckout bool
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}
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// Clone clones original repository to target path.
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func Clone(from, to string, opts CloneRepoOptions) (err error) {
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toDir := path.Dir(to)
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if err = os.MkdirAll(toDir, os.ModePerm); err != nil {
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return err
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}
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cmd := NewCommand("clone")
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if opts.Mirror {
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cmd.AddArguments("--mirror")
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}
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if opts.Bare {
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cmd.AddArguments("--bare")
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}
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if opts.Quiet {
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cmd.AddArguments("--quiet")
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}
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if opts.Shared {
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cmd.AddArguments("-s")
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}
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if opts.NoCheckout {
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cmd.AddArguments("--no-checkout")
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}
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if len(opts.Branch) > 0 {
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cmd.AddArguments("-b", opts.Branch)
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}
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cmd.AddArguments("--", from, to)
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if opts.Timeout <= 0 {
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opts.Timeout = -1
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}
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_, err = cmd.RunTimeout(opts.Timeout)
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return err
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}
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// PullRemoteOptions options when pull from remote
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type PullRemoteOptions struct {
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Timeout time.Duration
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All bool
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Rebase bool
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Remote string
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Branch string
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}
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// Pull pulls changes from remotes.
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func Pull(repoPath string, opts PullRemoteOptions) error {
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cmd := NewCommand("pull")
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if opts.Rebase {
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cmd.AddArguments("--rebase")
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}
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if opts.All {
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cmd.AddArguments("--all")
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} else {
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cmd.AddArguments("--", opts.Remote, opts.Branch)
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}
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if opts.Timeout <= 0 {
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opts.Timeout = -1
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}
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_, err := cmd.RunInDirTimeout(opts.Timeout, repoPath)
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return err
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}
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// PushOptions options when push to remote
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type PushOptions struct {
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Remote string
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Branch string
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Force bool
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Env []string
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}
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// Push pushs local commits to given remote branch.
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func Push(repoPath string, opts PushOptions) error {
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cmd := NewCommand("push")
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if opts.Force {
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cmd.AddArguments("-f")
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}
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cmd.AddArguments("--", opts.Remote, opts.Branch)
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_, err := cmd.RunInDirWithEnv(repoPath, opts.Env)
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return err
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}
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// CheckoutOptions options when heck out some branch
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type CheckoutOptions struct {
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Timeout time.Duration
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Branch string
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OldBranch string
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}
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// Checkout checkouts a branch
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func Checkout(repoPath string, opts CheckoutOptions) error {
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cmd := NewCommand("checkout")
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if len(opts.OldBranch) > 0 {
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cmd.AddArguments("-b")
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}
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if opts.Timeout <= 0 {
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opts.Timeout = -1
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}
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cmd.AddArguments(opts.Branch)
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if len(opts.OldBranch) > 0 {
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cmd.AddArguments(opts.OldBranch)
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}
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_, err := cmd.RunInDirTimeout(opts.Timeout, repoPath)
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return err
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}
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// ResetHEAD resets HEAD to given revision or head of branch.
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func ResetHEAD(repoPath string, hard bool, revision string) error {
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cmd := NewCommand("reset")
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if hard {
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cmd.AddArguments("--hard")
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}
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_, err := cmd.AddArguments(revision).RunInDir(repoPath)
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return err
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}
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// MoveFile moves a file to another file or directory.
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func MoveFile(repoPath, oldTreeName, newTreeName string) error {
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_, err := NewCommand("mv").AddArguments(oldTreeName, newTreeName).RunInDir(repoPath)
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return err
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}
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// CountObject represents repository count objects report
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type CountObject struct {
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Count int64
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Size int64
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InPack int64
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Packs int64
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SizePack int64
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PrunePack int64
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Garbage int64
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SizeGarbage int64
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}
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const (
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statCount = "count: "
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statSize = "size: "
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statInpack = "in-pack: "
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statPacks = "packs: "
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statSizePack = "size-pack: "
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statPrunePackage = "prune-package: "
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statGarbage = "garbage: "
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statSizeGarbage = "size-garbage: "
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)
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// GetRepoSize returns disk consumption for repo in path
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func GetRepoSize(repoPath string) (*CountObject, error) {
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cmd := NewCommand("count-objects", "-v")
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stdout, err := cmd.RunInDir(repoPath)
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if err != nil {
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return nil, err
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}
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return parseSize(stdout), nil
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}
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// parseSize parses the output from count-objects and return a CountObject
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func parseSize(objects string) *CountObject {
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repoSize := new(CountObject)
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for _, line := range strings.Split(objects, "\n") {
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switch {
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case strings.HasPrefix(line, statCount):
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repoSize.Count = com.StrTo(line[7:]).MustInt64()
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case strings.HasPrefix(line, statSize):
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repoSize.Size = com.StrTo(line[6:]).MustInt64() * 1024
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case strings.HasPrefix(line, statInpack):
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repoSize.InPack = com.StrTo(line[9:]).MustInt64()
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case strings.HasPrefix(line, statPacks):
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repoSize.Packs = com.StrTo(line[7:]).MustInt64()
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case strings.HasPrefix(line, statSizePack):
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repoSize.SizePack = com.StrTo(line[11:]).MustInt64() * 1024
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case strings.HasPrefix(line, statPrunePackage):
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repoSize.PrunePack = com.StrTo(line[16:]).MustInt64()
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case strings.HasPrefix(line, statGarbage):
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repoSize.Garbage = com.StrTo(line[9:]).MustInt64()
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case strings.HasPrefix(line, statSizeGarbage):
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repoSize.SizeGarbage = com.StrTo(line[14:]).MustInt64() * 1024
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}
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}
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return repoSize
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}
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// GetLatestCommitTime returns time for latest commit in repository (across all branches)
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func GetLatestCommitTime(repoPath string) (time.Time, error) {
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cmd := NewCommand("for-each-ref", "--sort=-committerdate", "refs/heads/", "--count", "1", "--format=%(committerdate)")
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stdout, err := cmd.RunInDir(repoPath)
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if err != nil {
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return time.Time{}, err
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}
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commitTime := strings.TrimSpace(stdout)
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return time.Parse(GitTimeLayout, commitTime)
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}
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// DivergeObject represents commit count diverging commits
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type DivergeObject struct {
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Ahead int
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Behind int
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}
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func checkDivergence(repoPath string, baseBranch string, targetBranch string) (int, error) {
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branches := fmt.Sprintf("%s..%s", baseBranch, targetBranch)
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cmd := NewCommand("rev-list", "--count", branches)
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stdout, err := cmd.RunInDir(repoPath)
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if err != nil {
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return -1, err
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}
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outInteger, errInteger := strconv.Atoi(strings.Trim(stdout, "\n"))
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if errInteger != nil {
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return -1, errInteger
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}
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return outInteger, nil
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}
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// GetDivergingCommits returns the number of commits a targetBranch is ahead or behind a baseBranch
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func GetDivergingCommits(repoPath string, baseBranch string, targetBranch string) (DivergeObject, error) {
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// $(git rev-list --count master..feature) commits ahead of master
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ahead, errorAhead := checkDivergence(repoPath, baseBranch, targetBranch)
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if errorAhead != nil {
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return DivergeObject{}, errorAhead
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}
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// $(git rev-list --count feature..master) commits behind master
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behind, errorBehind := checkDivergence(repoPath, targetBranch, baseBranch)
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if errorBehind != nil {
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return DivergeObject{}, errorBehind
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}
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return DivergeObject{ahead, behind}, nil
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}
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