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gitea/modules/git/repo_commit.go

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16 KiB
Go

// Copyright 2015 The Gogs Authors. All rights reserved.
// Copyright 2019 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package git
import (
"bytes"
"io"
"strconv"
"strings"
"code.gitea.io/gitea/modules/cache"
"code.gitea.io/gitea/modules/setting"
)
// GetBranchCommitID returns last commit ID string of given branch.
func (repo *Repository) GetBranchCommitID(name string) (string, error) {
return repo.GetRefCommitID(BranchPrefix + name)
}
// GetTagCommitID returns last commit ID string of given tag.
func (repo *Repository) GetTagCommitID(name string) (string, error) {
return repo.GetRefCommitID(TagPrefix + name)
}
// GetCommit returns commit object of by ID string.
func (repo *Repository) GetCommit(commitID string) (*Commit, error) {
id, err := repo.ConvertToGitID(commitID)
if err != nil {
return nil, err
}
return repo.getCommit(id)
}
// GetBranchCommit returns the last commit of given branch.
func (repo *Repository) GetBranchCommit(name string) (*Commit, error) {
commitID, err := repo.GetBranchCommitID(name)
if err != nil {
return nil, err
}
return repo.GetCommit(commitID)
}
// GetTagCommit get the commit of the specific tag via name
func (repo *Repository) GetTagCommit(name string) (*Commit, error) {
commitID, err := repo.GetTagCommitID(name)
if err != nil {
return nil, err
}
return repo.GetCommit(commitID)
}
func (repo *Repository) getCommitByPathWithID(id ObjectID, relpath string) (*Commit, error) {
// File name starts with ':' must be escaped.
if relpath[0] == ':' {
relpath = `\` + relpath
}
stdout, _, runErr := NewCommand(repo.Ctx, "log", "-1", prettyLogFormat).AddDynamicArguments(id.String()).AddDashesAndList(relpath).RunStdString(&RunOpts{Dir: repo.Path})
if runErr != nil {
return nil, runErr
}
id, err := NewIDFromString(stdout)
if err != nil {
return nil, err
}
return repo.getCommit(id)
}
// GetCommitByPath returns the last commit of relative path.
func (repo *Repository) GetCommitByPath(relpath string) (*Commit, error) {
stdout, _, runErr := NewCommand(repo.Ctx, "log", "-1", prettyLogFormat).AddDashesAndList(relpath).RunStdBytes(&RunOpts{Dir: repo.Path})
if runErr != nil {
return nil, runErr
}
commits, err := repo.parsePrettyFormatLogToList(stdout)
if err != nil {
return nil, err
}
if len(commits) == 0 {
return nil, ErrNotExist{ID: relpath}
}
return commits[0], nil
}
func (repo *Repository) commitsByRange(id ObjectID, page, pageSize int, not string) ([]*Commit, error) {
cmd := NewCommand(repo.Ctx, "log").
AddOptionFormat("--skip=%d", (page-1)*pageSize).
AddOptionFormat("--max-count=%d", pageSize).
AddArguments(prettyLogFormat).
AddDynamicArguments(id.String())
if not != "" {
cmd.AddOptionValues("--not", not)
}
stdout, _, err := cmd.RunStdBytes(&RunOpts{Dir: repo.Path})
if err != nil {
return nil, err
}
return repo.parsePrettyFormatLogToList(stdout)
}
func (repo *Repository) searchCommits(id ObjectID, opts SearchCommitsOptions) ([]*Commit, error) {
// add common arguments to git command
addCommonSearchArgs := func(c *Command) {
// ignore case
c.AddArguments("-i")
// add authors if present in search query
for _, v := range opts.Authors {
c.AddOptionFormat("--author=%s", v)
}
// add committers if present in search query
for _, v := range opts.Committers {
c.AddOptionFormat("--committer=%s", v)
}
// add time constraints if present in search query
if len(opts.After) > 0 {
c.AddOptionFormat("--after=%s", opts.After)
}
if len(opts.Before) > 0 {
c.AddOptionFormat("--before=%s", opts.Before)
}
}
// create new git log command with limit of 100 commits
cmd := NewCommand(repo.Ctx, "log", "-100", prettyLogFormat).AddDynamicArguments(id.String())
// pretend that all refs along with HEAD were listed on command line as <commis>
// https://git-scm.com/docs/git-log#Documentation/git-log.txt---all
// note this is done only for command created above
if opts.All {
cmd.AddArguments("--all")
}
// interpret search string keywords as string instead of regex
cmd.AddArguments("--fixed-strings")
// add remaining keywords from search string
// note this is done only for command created above
for _, v := range opts.Keywords {
cmd.AddOptionFormat("--grep=%s", v)
}
// search for commits matching given constraints and keywords in commit msg
addCommonSearchArgs(cmd)
stdout, _, err := cmd.RunStdBytes(&RunOpts{Dir: repo.Path})
if err != nil {
return nil, err
}
if len(stdout) != 0 {
stdout = append(stdout, '\n')
}
// if there are any keywords (ie not committer:, author:, time:)
// then let's iterate over them
for _, v := range opts.Keywords {
// ignore anything not matching a valid sha pattern
if id.Type().IsValid(v) {
// create new git log command with 1 commit limit
hashCmd := NewCommand(repo.Ctx, "log", "-1", prettyLogFormat)
// add previous arguments except for --grep and --all
addCommonSearchArgs(hashCmd)
// add keyword as <commit>
hashCmd.AddDynamicArguments(v)
// search with given constraints for commit matching sha hash of v
hashMatching, _, err := hashCmd.RunStdBytes(&RunOpts{Dir: repo.Path})
if err != nil || bytes.Contains(stdout, hashMatching) {
continue
}
stdout = append(stdout, hashMatching...)
stdout = append(stdout, '\n')
}
}
return repo.parsePrettyFormatLogToList(bytes.TrimSuffix(stdout, []byte{'\n'}))
}
// FileChangedBetweenCommits Returns true if the file changed between commit IDs id1 and id2
// You must ensure that id1 and id2 are valid commit ids.
func (repo *Repository) FileChangedBetweenCommits(filename, id1, id2 string) (bool, error) {
stdout, _, err := NewCommand(repo.Ctx, "diff", "--name-only", "-z").AddDynamicArguments(id1, id2).AddDashesAndList(filename).RunStdBytes(&RunOpts{Dir: repo.Path})
if err != nil {
return false, err
}
return len(strings.TrimSpace(string(stdout))) > 0, nil
}
// FileCommitsCount return the number of files at a revision
func (repo *Repository) FileCommitsCount(revision, file string) (int64, error) {
return CommitsCount(repo.Ctx,
CommitsCountOptions{
RepoPath: repo.Path,
Revision: []string{revision},
RelPath: []string{file},
})
}
type CommitsByFileAndRangeOptions struct {
Revision string
File string
Not string
Page int
}
// CommitsByFileAndRange return the commits according revision file and the page
func (repo *Repository) CommitsByFileAndRange(opts CommitsByFileAndRangeOptions) ([]*Commit, error) {
skip := (opts.Page - 1) * setting.Git.CommitsRangeSize
stdoutReader, stdoutWriter := io.Pipe()
defer func() {
_ = stdoutReader.Close()
_ = stdoutWriter.Close()
}()
go func() {
stderr := strings.Builder{}
gitCmd := NewCommand(repo.Ctx, "rev-list").
AddOptionFormat("--max-count=%d", setting.Git.CommitsRangeSize*opts.Page).
AddOptionFormat("--skip=%d", skip)
gitCmd.AddDynamicArguments(opts.Revision)
if opts.Not != "" {
gitCmd.AddOptionValues("--not", opts.Not)
}
gitCmd.AddDashesAndList(opts.File)
err := gitCmd.Run(&RunOpts{
Dir: repo.Path,
Stdout: stdoutWriter,
Stderr: &stderr,
})
if err != nil {
_ = stdoutWriter.CloseWithError(ConcatenateError(err, (&stderr).String()))
} else {
_ = stdoutWriter.Close()
}
}()
len := repo.objectFormat.FullLength()
commits := []*Commit{}
shaline := make([]byte, len+1)
for {
n, err := io.ReadFull(stdoutReader, shaline)
if err != nil || n < len {
if err == io.EOF {
err = nil
}
return commits, err
}
objectID, err := NewIDFromString(string(shaline[0:len]))
if err != nil {
return nil, err
}
commit, err := repo.getCommit(objectID)
if err != nil {
return nil, err
}
commits = append(commits, commit)
}
}
// FilesCountBetween return the number of files changed between two commits
func (repo *Repository) FilesCountBetween(startCommitID, endCommitID string) (int, error) {
stdout, _, err := NewCommand(repo.Ctx, "diff", "--name-only").AddDynamicArguments(startCommitID + "..." + endCommitID).RunStdString(&RunOpts{Dir: repo.Path})
if err != nil && strings.Contains(err.Error(), "no merge base") {
// git >= 2.28 now returns an error if startCommitID and endCommitID have become unrelated.
// previously it would return the results of git diff --name-only startCommitID endCommitID so let's try that...
stdout, _, err = NewCommand(repo.Ctx, "diff", "--name-only").AddDynamicArguments(startCommitID, endCommitID).RunStdString(&RunOpts{Dir: repo.Path})
}
if err != nil {
return 0, err
}
return len(strings.Split(stdout, "\n")) - 1, nil
}
// CommitsBetween returns a list that contains commits between [before, last).
// If before is detached (removed by reset + push) it is not included.
func (repo *Repository) CommitsBetween(last, before *Commit) ([]*Commit, error) {
var stdout []byte
var err error
if before == nil {
stdout, _, err = NewCommand(repo.Ctx, "rev-list").AddDynamicArguments(last.ID.String()).RunStdBytes(&RunOpts{Dir: repo.Path})
} else {
stdout, _, err = NewCommand(repo.Ctx, "rev-list").AddDynamicArguments(before.ID.String() + ".." + last.ID.String()).RunStdBytes(&RunOpts{Dir: repo.Path})
if err != nil && strings.Contains(err.Error(), "no merge base") {
// future versions of git >= 2.28 are likely to return an error if before and last have become unrelated.
// previously it would return the results of git rev-list before last so let's try that...
stdout, _, err = NewCommand(repo.Ctx, "rev-list").AddDynamicArguments(before.ID.String(), last.ID.String()).RunStdBytes(&RunOpts{Dir: repo.Path})
}
}
if err != nil {
return nil, err
}
return repo.parsePrettyFormatLogToList(bytes.TrimSpace(stdout))
}
// CommitsBetweenLimit returns a list that contains at most limit commits skipping the first skip commits between [before, last)
func (repo *Repository) CommitsBetweenLimit(last, before *Commit, limit, skip int) ([]*Commit, error) {
var stdout []byte
var err error
if before == nil {
stdout, _, err = NewCommand(repo.Ctx, "rev-list").
AddOptionValues("--max-count", strconv.Itoa(limit)).
AddOptionValues("--skip", strconv.Itoa(skip)).
AddDynamicArguments(last.ID.String()).RunStdBytes(&RunOpts{Dir: repo.Path})
} else {
stdout, _, err = NewCommand(repo.Ctx, "rev-list").
AddOptionValues("--max-count", strconv.Itoa(limit)).
AddOptionValues("--skip", strconv.Itoa(skip)).
AddDynamicArguments(before.ID.String() + ".." + last.ID.String()).RunStdBytes(&RunOpts{Dir: repo.Path})
if err != nil && strings.Contains(err.Error(), "no merge base") {
// future versions of git >= 2.28 are likely to return an error if before and last have become unrelated.
// previously it would return the results of git rev-list --max-count n before last so let's try that...
stdout, _, err = NewCommand(repo.Ctx, "rev-list").
AddOptionValues("--max-count", strconv.Itoa(limit)).
AddOptionValues("--skip", strconv.Itoa(skip)).
AddDynamicArguments(before.ID.String(), last.ID.String()).RunStdBytes(&RunOpts{Dir: repo.Path})
}
}
if err != nil {
return nil, err
}
return repo.parsePrettyFormatLogToList(bytes.TrimSpace(stdout))
}
// CommitsBetweenNotBase returns a list that contains commits between [before, last), excluding commits in baseBranch.
// If before is detached (removed by reset + push) it is not included.
func (repo *Repository) CommitsBetweenNotBase(last, before *Commit, baseBranch string) ([]*Commit, error) {
var stdout []byte
var err error
if before == nil {
stdout, _, err = NewCommand(repo.Ctx, "rev-list").AddDynamicArguments(last.ID.String()).AddOptionValues("--not", baseBranch).RunStdBytes(&RunOpts{Dir: repo.Path})
} else {
stdout, _, err = NewCommand(repo.Ctx, "rev-list").AddDynamicArguments(before.ID.String()+".."+last.ID.String()).AddOptionValues("--not", baseBranch).RunStdBytes(&RunOpts{Dir: repo.Path})
if err != nil && strings.Contains(err.Error(), "no merge base") {
// future versions of git >= 2.28 are likely to return an error if before and last have become unrelated.
// previously it would return the results of git rev-list before last so let's try that...
stdout, _, err = NewCommand(repo.Ctx, "rev-list").AddDynamicArguments(before.ID.String(), last.ID.String()).AddOptionValues("--not", baseBranch).RunStdBytes(&RunOpts{Dir: repo.Path})
}
}
if err != nil {
return nil, err
}
return repo.parsePrettyFormatLogToList(bytes.TrimSpace(stdout))
}
// CommitsBetweenIDs return commits between twoe commits
func (repo *Repository) CommitsBetweenIDs(last, before string) ([]*Commit, error) {
lastCommit, err := repo.GetCommit(last)
if err != nil {
return nil, err
}
if before == "" {
return repo.CommitsBetween(lastCommit, nil)
}
beforeCommit, err := repo.GetCommit(before)
if err != nil {
return nil, err
}
return repo.CommitsBetween(lastCommit, beforeCommit)
}
// CommitsCountBetween return numbers of commits between two commits
func (repo *Repository) CommitsCountBetween(start, end string) (int64, error) {
count, err := CommitsCount(repo.Ctx, CommitsCountOptions{
RepoPath: repo.Path,
Revision: []string{start + ".." + end},
})
if err != nil && strings.Contains(err.Error(), "no merge base") {
// future versions of git >= 2.28 are likely to return an error if before and last have become unrelated.
// previously it would return the results of git rev-list before last so let's try that...
return CommitsCount(repo.Ctx, CommitsCountOptions{
RepoPath: repo.Path,
Revision: []string{start, end},
})
}
return count, err
}
// commitsBefore the limit is depth, not total number of returned commits.
func (repo *Repository) commitsBefore(id ObjectID, limit int) ([]*Commit, error) {
cmd := NewCommand(repo.Ctx, "log", prettyLogFormat)
if limit > 0 {
cmd.AddOptionFormat("-%d", limit)
}
cmd.AddDynamicArguments(id.String())
stdout, _, runErr := cmd.RunStdBytes(&RunOpts{Dir: repo.Path})
if runErr != nil {
return nil, runErr
}
formattedLog, err := repo.parsePrettyFormatLogToList(bytes.TrimSpace(stdout))
if err != nil {
return nil, err
}
commits := make([]*Commit, 0, len(formattedLog))
for _, commit := range formattedLog {
branches, err := repo.getBranches(commit, 2)
if err != nil {
return nil, err
}
if len(branches) > 1 {
break
}
commits = append(commits, commit)
}
return commits, nil
}
func (repo *Repository) getCommitsBefore(id ObjectID) ([]*Commit, error) {
return repo.commitsBefore(id, 0)
}
func (repo *Repository) getCommitsBeforeLimit(id ObjectID, num int) ([]*Commit, error) {
return repo.commitsBefore(id, num)
}
func (repo *Repository) getBranches(commit *Commit, limit int) ([]string, error) {
if CheckGitVersionAtLeast("2.7.0") == nil {
stdout, _, err := NewCommand(repo.Ctx, "for-each-ref", "--format=%(refname:strip=2)").
AddOptionFormat("--count=%d", limit).
AddOptionValues("--contains", commit.ID.String(), BranchPrefix).
RunStdString(&RunOpts{Dir: repo.Path})
if err != nil {
return nil, err
}
branches := strings.Fields(stdout)
return branches, nil
}
stdout, _, err := NewCommand(repo.Ctx, "branch").AddOptionValues("--contains", commit.ID.String()).RunStdString(&RunOpts{Dir: repo.Path})
if err != nil {
return nil, err
}
refs := strings.Split(stdout, "\n")
var max int
if len(refs) > limit {
max = limit
} else {
max = len(refs) - 1
}
branches := make([]string, max)
for i, ref := range refs[:max] {
parts := strings.Fields(ref)
branches[i] = parts[len(parts)-1]
}
return branches, nil
}
// GetCommitsFromIDs get commits from commit IDs
func (repo *Repository) GetCommitsFromIDs(commitIDs []string) []*Commit {
commits := make([]*Commit, 0, len(commitIDs))
for _, commitID := range commitIDs {
commit, err := repo.GetCommit(commitID)
if err == nil && commit != nil {
commits = append(commits, commit)
}
}
return commits
}
// IsCommitInBranch check if the commit is on the branch
func (repo *Repository) IsCommitInBranch(commitID, branch string) (r bool, err error) {
stdout, _, err := NewCommand(repo.Ctx, "branch", "--contains").AddDynamicArguments(commitID, branch).RunStdString(&RunOpts{Dir: repo.Path})
if err != nil {
return false, err
}
return len(stdout) > 0, err
}
func (repo *Repository) AddLastCommitCache(cacheKey, fullName, sha string) error {
if repo.LastCommitCache == nil {
commitsCount, err := cache.GetInt64(cacheKey, func() (int64, error) {
commit, err := repo.GetCommit(sha)
if err != nil {
return 0, err
}
return commit.CommitsCount()
})
if err != nil {
return err
}
repo.LastCommitCache = NewLastCommitCache(commitsCount, fullName, repo, cache.GetCache())
}
return nil
}