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454 lines
14 KiB
454 lines
14 KiB
// 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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"encoding/hex"
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"fmt"
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"io"
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"strconv"
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"strings"
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"code.gitea.io/gitea/modules/cache"
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"code.gitea.io/gitea/modules/setting"
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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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return repo.GetRefCommitID(TagPrefix + name)
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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, _, runErr := NewCommand(repo.Ctx, "log", "-1", prettyLogFormat, id.String(), "--", relpath).RunStdString(&RunOpts{Dir: repo.Path})
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if runErr != nil {
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return nil, runErr
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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, _, runErr := NewCommand(repo.Ctx, "log", "-1", prettyLogFormat, "--", relpath).RunStdBytes(&RunOpts{Dir: repo.Path})
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if runErr != nil {
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return nil, runErr
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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[0], nil
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}
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func (repo *Repository) commitsByRange(id SHA1, page, pageSize int) ([]*Commit, error) {
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stdout, _, err := NewCommand(repo.Ctx, "log", id.String(), "--skip="+strconv.Itoa((page-1)*pageSize),
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"--max-count="+strconv.Itoa(pageSize), prettyLogFormat).RunStdBytes(&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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return repo.parsePrettyFormatLogToList(stdout)
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}
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func (repo *Repository) searchCommits(id SHA1, opts SearchCommitsOptions) ([]*Commit, error) {
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// create new git log command with limit of 100 commis
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cmd := NewCommand(repo.Ctx, "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 committers 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.RunStdBytes(&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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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 committer:, 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(repo.Ctx, "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.RunStdBytes(&RunOpts{Dir: 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(repo.Ctx, "diff", "--name-only", id1, id2).RunStdBytes(&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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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(repo.Ctx, "diff", "--name-only", "-z", id1, id2, "--", filename).RunStdBytes(&RunOpts{Dir: 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 revision
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func (repo *Repository) FileCommitsCount(revision, file string) (int64, error) {
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return CommitsCountFiles(repo.Ctx, repo.Path, []string{revision}, []string{file})
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}
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// CommitsByFileAndRange return the commits according revision file and the page
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func (repo *Repository) CommitsByFileAndRange(revision, file string, page int) ([]*Commit, error) {
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skip := (page - 1) * setting.Git.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(repo.Ctx, "rev-list", revision,
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"--max-count="+strconv.Itoa(setting.Git.CommitsRangeSize*page),
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"--skip="+strconv.Itoa(skip), "--", file).
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Run(&RunOpts{
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Dir: repo.Path,
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Stdout: stdoutWriter,
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Stderr: &stderr,
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})
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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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commits := []*Commit{}
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shaline := [41]byte{}
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var sha1 SHA1
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for {
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n, err := io.ReadFull(stdoutReader, shaline[:])
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if err != nil || n < 40 {
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if err == io.EOF {
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err = nil
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}
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return commits, err
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}
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n, err = hex.Decode(sha1[:], shaline[0:40])
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if n != 20 {
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err = fmt.Errorf("invalid sha %q", string(shaline[:40]))
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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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commit, err := repo.getCommit(sha1)
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if err != nil {
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return nil, err
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}
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commits = append(commits, commit)
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}
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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(repo.Ctx, "diff", "--name-only", startCommitID+"..."+endCommitID).RunStdString(&RunOpts{Dir: 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(repo.Ctx, "diff", "--name-only", startCommitID, endCommitID).RunStdString(&RunOpts{Dir: 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 [before, last).
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// If before is detached (removed by reset + push) it is not included.
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func (repo *Repository) CommitsBetween(last, before *Commit) ([]*Commit, 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(repo.Ctx, "rev-list", last.ID.String()).RunStdBytes(&RunOpts{Dir: repo.Path})
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} else {
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stdout, _, err = NewCommand(repo.Ctx, "rev-list", before.ID.String()+".."+last.ID.String()).RunStdBytes(&RunOpts{Dir: 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(repo.Ctx, "rev-list", before.ID.String(), last.ID.String()).RunStdBytes(&RunOpts{Dir: 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 [before, last)
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func (repo *Repository) CommitsBetweenLimit(last, before *Commit, limit, skip int) ([]*Commit, 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(repo.Ctx, "rev-list", "--max-count", strconv.Itoa(limit), "--skip", strconv.Itoa(skip), last.ID.String()).RunStdBytes(&RunOpts{Dir: repo.Path})
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} else {
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stdout, _, err = NewCommand(repo.Ctx, "rev-list", "--max-count", strconv.Itoa(limit), "--skip", strconv.Itoa(skip), before.ID.String()+".."+last.ID.String()).RunStdBytes(&RunOpts{Dir: 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(repo.Ctx, "rev-list", "--max-count", strconv.Itoa(limit), "--skip", strconv.Itoa(skip), before.ID.String(), last.ID.String()).RunStdBytes(&RunOpts{Dir: 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) ([]*Commit, 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.Ctx, 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.Ctx, 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) ([]*Commit, error) {
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cmd := NewCommand(repo.Ctx, "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, _, runErr := cmd.RunStdBytes(&RunOpts{Dir: repo.Path})
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if runErr != nil {
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return nil, runErr
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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 := make([]*Commit, 0, len(formattedLog))
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for _, commit := range formattedLog {
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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 = append(commits, 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) ([]*Commit, 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) ([]*Commit, 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(repo.Ctx, "for-each-ref", "--count="+strconv.Itoa(limit), "--format=%(refname:strip=2)", "--contains", commit.ID.String(), BranchPrefix).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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branches := strings.Fields(stdout)
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return branches, nil
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}
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stdout, _, err := NewCommand(repo.Ctx, "branch", "--contains", commit.ID.String()).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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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) []*Commit {
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commits := make([]*Commit, 0, len(commitIDs))
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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 = append(commits, 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(repo.Ctx, "branch", "--contains", commitID, branch).RunStdString(&RunOpts{Dir: 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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func (repo *Repository) AddLastCommitCache(cacheKey, fullName, sha string) error {
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if repo.LastCommitCache == nil {
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commitsCount, err := cache.GetInt64(cacheKey, func() (int64, error) {
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commit, err := repo.GetCommit(sha)
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if err != nil {
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return 0, err
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}
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return commit.CommitsCount()
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})
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if err != nil {
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return err
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}
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repo.LastCommitCache = NewLastCommitCache(commitsCount, fullName, repo, cache.GetCache())
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}
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return nil
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}
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