129 lines
3.5 KiB
Go
129 lines
3.5 KiB
Go
// 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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"context"
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"os"
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"strings"
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"code.gitea.io/gitea/modules/log"
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"code.gitea.io/gitea/modules/util"
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)
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// ReadTreeToIndex reads a treeish to the index
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func (repo *Repository) ReadTreeToIndex(treeish string, indexFilename ...string) error {
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if len(treeish) != 40 {
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res, err := NewCommand("rev-parse", "--verify", treeish).RunInDir(repo.Path)
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if err != nil {
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return err
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}
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if len(res) > 0 {
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treeish = res[:len(res)-1]
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}
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}
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id, err := NewIDFromString(treeish)
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if err != nil {
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return err
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}
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return repo.readTreeToIndex(id, indexFilename...)
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}
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func (repo *Repository) readTreeToIndex(id SHA1, indexFilename ...string) error {
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var env []string
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if len(indexFilename) > 0 {
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env = append(os.Environ(), "GIT_INDEX_FILE="+indexFilename[0])
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}
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_, err := NewCommand("read-tree", id.String()).RunInDirWithEnv(repo.Path, env)
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if err != nil {
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return err
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}
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return nil
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}
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// ReadTreeToTemporaryIndex reads a treeish to a temporary index file
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func (repo *Repository) ReadTreeToTemporaryIndex(treeish string) (filename string, cancel context.CancelFunc, err error) {
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tmpIndex, err := os.CreateTemp("", "index")
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if err != nil {
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return
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}
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filename = tmpIndex.Name()
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cancel = func() {
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err := util.Remove(filename)
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if err != nil {
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log.Error("failed to remove tmp index file: %v", err)
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}
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}
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err = repo.ReadTreeToIndex(treeish, filename)
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if err != nil {
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defer cancel()
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return "", func() {}, err
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}
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return
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}
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// EmptyIndex empties the index
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func (repo *Repository) EmptyIndex() error {
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_, err := NewCommand("read-tree", "--empty").RunInDir(repo.Path)
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return err
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}
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// LsFiles checks if the given filenames are in the index
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func (repo *Repository) LsFiles(filenames ...string) ([]string, error) {
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cmd := NewCommand("ls-files", "-z", "--")
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for _, arg := range filenames {
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if arg != "" {
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cmd.AddArguments(arg)
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}
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}
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res, 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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filelist := make([]string, 0, len(filenames))
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for _, line := range bytes.Split(res, []byte{'\000'}) {
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filelist = append(filelist, string(line))
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}
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return filelist, err
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}
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// RemoveFilesFromIndex removes given filenames from the index - it does not check whether they are present.
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func (repo *Repository) RemoveFilesFromIndex(filenames ...string) error {
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cmd := NewCommand("update-index", "--remove", "-z", "--index-info")
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stdout := new(bytes.Buffer)
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stderr := new(bytes.Buffer)
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buffer := new(bytes.Buffer)
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for _, file := range filenames {
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if file != "" {
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buffer.WriteString("0 0000000000000000000000000000000000000000\t")
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buffer.WriteString(file)
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buffer.WriteByte('\000')
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}
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}
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return cmd.RunInDirFullPipeline(repo.Path, stdout, stderr, bytes.NewReader(buffer.Bytes()))
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}
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// AddObjectToIndex adds the provided object hash to the index at the provided filename
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func (repo *Repository) AddObjectToIndex(mode string, object SHA1, filename string) error {
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cmd := NewCommand("update-index", "--add", "--replace", "--cacheinfo", mode, object.String(), filename)
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_, err := cmd.RunInDir(repo.Path)
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return err
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}
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// WriteTree writes the current index as a tree to the object db and returns its hash
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func (repo *Repository) WriteTree() (*Tree, error) {
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res, err := NewCommand("write-tree").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(strings.TrimSpace(res))
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if err != nil {
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return nil, err
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}
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return NewTree(repo, id), nil
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}
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