468 lines
14 KiB
Go
468 lines
14 KiB
Go
// Copyright 2015 The Gogs Authors. All rights reserved.
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// Copyright 2019 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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"io"
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"io/ioutil"
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"strconv"
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"strings"
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)
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// GetBranchCommitID returns last commit ID string of given branch.
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func (repo *Repository) GetBranchCommitID(name string) (string, error) {
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return repo.GetRefCommitID(BranchPrefix + name)
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}
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// GetTagCommitID returns last commit ID string of given tag.
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func (repo *Repository) GetTagCommitID(name string) (string, error) {
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stdout, err := NewCommand("rev-list", "-n", "1", TagPrefix+name).RunInDir(repo.Path)
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if err != nil {
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if strings.Contains(err.Error(), "unknown revision or path") {
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return "", ErrNotExist{name, ""}
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}
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return "", err
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}
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return strings.TrimSpace(stdout), nil
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}
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// ConvertToSHA1 returns a Hash object from a potential ID string
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func (repo *Repository) ConvertToSHA1(commitID string) (SHA1, error) {
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if len(commitID) == 40 {
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sha1, err := NewIDFromString(commitID)
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if err == nil {
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return sha1, nil
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}
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}
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actualCommitID, err := NewCommand("rev-parse", "--verify", commitID).RunInDir(repo.Path)
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if err != nil {
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if strings.Contains(err.Error(), "unknown revision or path") ||
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strings.Contains(err.Error(), "fatal: Needed a single revision") {
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return SHA1{}, ErrNotExist{commitID, ""}
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}
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return SHA1{}, err
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}
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return NewIDFromString(actualCommitID)
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}
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// GetCommit returns commit object of by ID string.
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func (repo *Repository) GetCommit(commitID string) (*Commit, error) {
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id, err := repo.ConvertToSHA1(commitID)
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if err != nil {
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return nil, err
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}
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return repo.getCommit(id)
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}
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// GetBranchCommit returns the last commit of given branch.
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func (repo *Repository) GetBranchCommit(name string) (*Commit, error) {
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commitID, err := repo.GetBranchCommitID(name)
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if err != nil {
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return nil, err
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}
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return repo.GetCommit(commitID)
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}
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// GetTagCommit get the commit of the specific tag via name
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func (repo *Repository) GetTagCommit(name string) (*Commit, error) {
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commitID, err := repo.GetTagCommitID(name)
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if err != nil {
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return nil, err
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}
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return repo.GetCommit(commitID)
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}
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func (repo *Repository) getCommitByPathWithID(id SHA1, relpath string) (*Commit, error) {
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// File name starts with ':' must be escaped.
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if relpath[0] == ':' {
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relpath = `\` + relpath
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}
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stdout, err := NewCommand("log", "-1", prettyLogFormat, id.String(), "--", relpath).RunInDir(repo.Path)
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if err != nil {
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return nil, err
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}
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id, err = NewIDFromString(stdout)
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if err != nil {
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return nil, err
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}
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return repo.getCommit(id)
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}
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// GetCommitByPath returns the last commit of relative path.
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func (repo *Repository) GetCommitByPath(relpath string) (*Commit, error) {
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stdout, err := NewCommand("log", "-1", prettyLogFormat, "--", relpath).RunInDirBytes(repo.Path)
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if err != nil {
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return nil, err
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}
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commits, err := repo.parsePrettyFormatLogToList(stdout)
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if err != nil {
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return nil, err
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}
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return commits.Front().Value.(*Commit), nil
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}
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// CommitsRangeSize the default commits range size
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var CommitsRangeSize = 50
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// BranchesRangeSize the default branches range size
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var BranchesRangeSize = 20
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func (repo *Repository) commitsByRange(id SHA1, page, pageSize int) (*list.List, error) {
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stdout, err := NewCommand("log", id.String(), "--skip="+strconv.Itoa((page-1)*pageSize),
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"--max-count="+strconv.Itoa(pageSize), prettyLogFormat).RunInDirBytes(repo.Path)
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if err != nil {
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return nil, err
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}
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return repo.parsePrettyFormatLogToList(stdout)
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}
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func (repo *Repository) searchCommits(id SHA1, opts SearchCommitsOptions) (*list.List, error) {
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// create new git log command with limit of 100 commis
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cmd := NewCommand("log", id.String(), "-100", prettyLogFormat)
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// ignore case
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args := []string{"-i"}
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// add authors if present in search query
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if len(opts.Authors) > 0 {
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for _, v := range opts.Authors {
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args = append(args, "--author="+v)
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}
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}
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// add commiters if present in search query
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if len(opts.Committers) > 0 {
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for _, v := range opts.Committers {
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args = append(args, "--committer="+v)
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}
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}
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// add time constraints if present in search query
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if len(opts.After) > 0 {
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args = append(args, "--after="+opts.After)
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}
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if len(opts.Before) > 0 {
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args = append(args, "--before="+opts.Before)
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}
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// pretend that all refs along with HEAD were listed on command line as <commis>
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// https://git-scm.com/docs/git-log#Documentation/git-log.txt---all
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// note this is done only for command created above
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if opts.All {
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cmd.AddArguments("--all")
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}
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// add remaining keywords from search string
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// note this is done only for command created above
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if len(opts.Keywords) > 0 {
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for _, v := range opts.Keywords {
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cmd.AddArguments("--grep=" + v)
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}
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}
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// search for commits matching given constraints and keywords in commit msg
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cmd.AddArguments(args...)
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stdout, err := cmd.RunInDirBytes(repo.Path)
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if err != nil {
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return nil, err
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}
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if len(stdout) != 0 {
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stdout = append(stdout, '\n')
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}
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// if there are any keywords (ie not commiter:, author:, time:)
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// then let's iterate over them
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if len(opts.Keywords) > 0 {
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for _, v := range opts.Keywords {
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// ignore anything below 4 characters as too unspecific
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if len(v) >= 4 {
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// create new git log command with 1 commit limit
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hashCmd := NewCommand("log", "-1", prettyLogFormat)
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// add previous arguments except for --grep and --all
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hashCmd.AddArguments(args...)
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// add keyword as <commit>
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hashCmd.AddArguments(v)
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// search with given constraints for commit matching sha hash of v
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hashMatching, err := hashCmd.RunInDirBytes(repo.Path)
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if err != nil || bytes.Contains(stdout, hashMatching) {
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continue
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}
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stdout = append(stdout, hashMatching...)
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stdout = append(stdout, '\n')
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}
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}
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}
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return repo.parsePrettyFormatLogToList(bytes.TrimSuffix(stdout, []byte{'\n'}))
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}
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func (repo *Repository) getFilesChanged(id1, id2 string) ([]string, error) {
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stdout, err := NewCommand("diff", "--name-only", id1, id2).RunInDirBytes(repo.Path)
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if err != nil {
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return nil, err
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}
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return strings.Split(string(stdout), "\n"), nil
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}
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// FileChangedBetweenCommits Returns true if the file changed between commit IDs id1 and id2
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// You must ensure that id1 and id2 are valid commit ids.
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func (repo *Repository) FileChangedBetweenCommits(filename, id1, id2 string) (bool, error) {
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stdout, err := NewCommand("diff", "--name-only", "-z", id1, id2, "--", filename).RunInDirBytes(repo.Path)
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if err != nil {
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return false, err
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}
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return len(strings.TrimSpace(string(stdout))) > 0, nil
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}
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// FileCommitsCount return the number of files at a revison
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func (repo *Repository) FileCommitsCount(revision, file string) (int64, error) {
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return CommitsCountFiles(repo.Path, []string{revision}, []string{file})
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}
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// CommitsByFileAndRange return the commits according revison file and the page
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func (repo *Repository) CommitsByFileAndRange(revision, file string, page int) (*list.List, error) {
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skip := (page - 1) * CommitsRangeSize
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stdoutReader, stdoutWriter := io.Pipe()
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defer func() {
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_ = stdoutReader.Close()
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_ = stdoutWriter.Close()
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}()
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go func() {
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stderr := strings.Builder{}
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err := NewCommand("log", revision, "--follow",
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"--max-count="+strconv.Itoa(CommitsRangeSize*page),
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prettyLogFormat, "--", file).
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RunInDirPipeline(repo.Path, stdoutWriter, &stderr)
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if err != nil {
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_ = stdoutWriter.CloseWithError(ConcatenateError(err, (&stderr).String()))
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} else {
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_ = stdoutWriter.Close()
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}
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}()
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if skip > 0 {
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_, err := io.CopyN(ioutil.Discard, stdoutReader, int64(skip*41))
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if err != nil {
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if err == io.EOF {
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return list.New(), nil
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}
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_ = stdoutReader.CloseWithError(err)
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return nil, err
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}
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}
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stdout, err := ioutil.ReadAll(stdoutReader)
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if err != nil {
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return nil, err
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}
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return repo.parsePrettyFormatLogToList(stdout)
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}
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// CommitsByFileAndRangeNoFollow return the commits according revison file and the page
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func (repo *Repository) CommitsByFileAndRangeNoFollow(revision, file string, page int) (*list.List, error) {
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stdout, err := NewCommand("log", revision, "--skip="+strconv.Itoa((page-1)*50),
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"--max-count="+strconv.Itoa(CommitsRangeSize), prettyLogFormat, "--", file).RunInDirBytes(repo.Path)
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if err != nil {
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return nil, err
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}
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return repo.parsePrettyFormatLogToList(stdout)
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}
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// FilesCountBetween return the number of files changed between two commits
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func (repo *Repository) FilesCountBetween(startCommitID, endCommitID string) (int, error) {
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stdout, err := NewCommand("diff", "--name-only", startCommitID+"..."+endCommitID).RunInDir(repo.Path)
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if err != nil && strings.Contains(err.Error(), "no merge base") {
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// git >= 2.28 now returns an error if startCommitID and endCommitID have become unrelated.
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// previously it would return the results of git diff --name-only startCommitID endCommitID so let's try that...
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stdout, err = NewCommand("diff", "--name-only", startCommitID, endCommitID).RunInDir(repo.Path)
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}
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if err != nil {
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return 0, err
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}
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return len(strings.Split(stdout, "\n")) - 1, nil
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}
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// CommitsBetween returns a list that contains commits between [last, before).
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func (repo *Repository) CommitsBetween(last *Commit, before *Commit) (*list.List, error) {
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var stdout []byte
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var err error
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if before == nil {
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stdout, err = NewCommand("rev-list", last.ID.String()).RunInDirBytes(repo.Path)
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} else {
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stdout, err = NewCommand("rev-list", before.ID.String()+"..."+last.ID.String()).RunInDirBytes(repo.Path)
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if err != nil && strings.Contains(err.Error(), "no merge base") {
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// future versions of git >= 2.28 are likely to return an error if before and last have become unrelated.
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// previously it would return the results of git rev-list before last so let's try that...
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stdout, err = NewCommand("rev-list", before.ID.String(), last.ID.String()).RunInDirBytes(repo.Path)
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}
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}
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if err != nil {
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return nil, err
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}
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return repo.parsePrettyFormatLogToList(bytes.TrimSpace(stdout))
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}
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// CommitsBetweenLimit returns a list that contains at most limit commits skipping the first skip commits between [last, before)
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func (repo *Repository) CommitsBetweenLimit(last *Commit, before *Commit, limit, skip int) (*list.List, error) {
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var stdout []byte
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var err error
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if before == nil {
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stdout, err = NewCommand("rev-list", "--max-count", strconv.Itoa(limit), "--skip", strconv.Itoa(skip), last.ID.String()).RunInDirBytes(repo.Path)
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} else {
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stdout, err = NewCommand("rev-list", "--max-count", strconv.Itoa(limit), "--skip", strconv.Itoa(skip), before.ID.String()+"..."+last.ID.String()).RunInDirBytes(repo.Path)
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if err != nil && strings.Contains(err.Error(), "no merge base") {
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// future versions of git >= 2.28 are likely to return an error if before and last have become unrelated.
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// previously it would return the results of git rev-list --max-count n before last so let's try that...
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stdout, err = NewCommand("rev-list", "--max-count", strconv.Itoa(limit), "--skip", strconv.Itoa(skip), before.ID.String(), last.ID.String()).RunInDirBytes(repo.Path)
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}
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}
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if err != nil {
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return nil, err
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}
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return repo.parsePrettyFormatLogToList(bytes.TrimSpace(stdout))
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}
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// CommitsBetweenIDs return commits between twoe commits
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func (repo *Repository) CommitsBetweenIDs(last, before string) (*list.List, error) {
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lastCommit, err := repo.GetCommit(last)
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if err != nil {
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return nil, err
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}
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if before == "" {
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return repo.CommitsBetween(lastCommit, nil)
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}
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beforeCommit, err := repo.GetCommit(before)
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if err != nil {
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return nil, err
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}
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return repo.CommitsBetween(lastCommit, beforeCommit)
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}
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// CommitsCountBetween return numbers of commits between two commits
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func (repo *Repository) CommitsCountBetween(start, end string) (int64, error) {
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count, err := CommitsCountFiles(repo.Path, []string{start + "..." + end}, []string{})
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if err != nil && strings.Contains(err.Error(), "no merge base") {
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// future versions of git >= 2.28 are likely to return an error if before and last have become unrelated.
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// previously it would return the results of git rev-list before last so let's try that...
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return CommitsCountFiles(repo.Path, []string{start, end}, []string{})
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}
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return count, err
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}
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// commitsBefore the limit is depth, not total number of returned commits.
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func (repo *Repository) commitsBefore(id SHA1, limit int) (*list.List, error) {
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cmd := NewCommand("log")
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if limit > 0 {
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cmd.AddArguments("-"+strconv.Itoa(limit), prettyLogFormat, id.String())
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} else {
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cmd.AddArguments(prettyLogFormat, id.String())
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}
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stdout, err := cmd.RunInDirBytes(repo.Path)
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if err != nil {
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return nil, err
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}
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formattedLog, err := repo.parsePrettyFormatLogToList(bytes.TrimSpace(stdout))
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if err != nil {
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return nil, err
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}
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commits := list.New()
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for logEntry := formattedLog.Front(); logEntry != nil; logEntry = logEntry.Next() {
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commit := logEntry.Value.(*Commit)
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branches, err := repo.getBranches(commit, 2)
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if err != nil {
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return nil, err
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}
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if len(branches) > 1 {
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break
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}
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commits.PushBack(commit)
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}
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return commits, nil
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}
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func (repo *Repository) getCommitsBefore(id SHA1) (*list.List, error) {
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return repo.commitsBefore(id, 0)
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}
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func (repo *Repository) getCommitsBeforeLimit(id SHA1, num int) (*list.List, error) {
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return repo.commitsBefore(id, num)
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}
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func (repo *Repository) getBranches(commit *Commit, limit int) ([]string, error) {
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if CheckGitVersionAtLeast("2.7.0") == nil {
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stdout, err := NewCommand("for-each-ref", "--count="+strconv.Itoa(limit), "--format=%(refname:strip=2)", "--contains", commit.ID.String(), BranchPrefix).RunInDir(repo.Path)
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if err != nil {
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return nil, err
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}
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branches := strings.Fields(stdout)
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return branches, nil
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}
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stdout, err := NewCommand("branch", "--contains", commit.ID.String()).RunInDir(repo.Path)
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if err != nil {
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return nil, err
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}
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refs := strings.Split(stdout, "\n")
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var max int
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if len(refs) > limit {
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max = limit
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} else {
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max = len(refs) - 1
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}
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branches := make([]string, max)
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for i, ref := range refs[:max] {
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parts := strings.Fields(ref)
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branches[i] = parts[len(parts)-1]
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}
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return branches, nil
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}
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// GetCommitsFromIDs get commits from commit IDs
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func (repo *Repository) GetCommitsFromIDs(commitIDs []string) (commits *list.List) {
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commits = list.New()
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for _, commitID := range commitIDs {
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commit, err := repo.GetCommit(commitID)
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if err == nil && commit != nil {
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commits.PushBack(commit)
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}
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}
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return commits
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}
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// IsCommitInBranch check if the commit is on the branch
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func (repo *Repository) IsCommitInBranch(commitID, branch string) (r bool, err error) {
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stdout, err := NewCommand("branch", "--contains", commitID, branch).RunInDir(repo.Path)
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if err != nil {
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return false, err
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}
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return len(stdout) > 0, err
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}
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