137 lines
4.0 KiB
Go
137 lines
4.0 KiB
Go
// Copyright 2019 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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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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"path/filepath"
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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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objectFormat, err := repo.GetObjectFormat()
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if err != nil {
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return err
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}
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if len(treeish) != objectFormat.FullLength() {
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res, _, err := NewCommand(repo.Ctx, "rev-parse", "--verify").AddDynamicArguments(treeish).RunStdString(&RunOpts{Dir: 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 ObjectID, 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(repo.Ctx, "read-tree").AddDynamicArguments(id.String()).RunStdString(&RunOpts{Dir: repo.Path, Env: 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, tmpDir string, cancel context.CancelFunc, err error) {
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tmpDir, err = os.MkdirTemp("", "index")
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if err != nil {
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return filename, tmpDir, cancel, err
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}
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filename = filepath.Join(tmpDir, ".tmp-index")
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cancel = func() {
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err := util.RemoveAll(tmpDir)
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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 filename, tmpDir, cancel, err
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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(repo.Ctx, "read-tree", "--empty").RunStdString(&RunOpts{Dir: 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(repo.Ctx, "ls-files", "-z").AddDashesAndList(filenames...)
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res, _, 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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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(repo.Ctx, "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 ")
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buffer.WriteString(repo.objectFormat.EmptyObjectID().String())
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buffer.WriteByte('\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.Run(&RunOpts{
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Dir: repo.Path,
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Stdin: bytes.NewReader(buffer.Bytes()),
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Stdout: stdout,
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Stderr: stderr,
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})
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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 ObjectID, filename string) error {
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cmd := NewCommand(repo.Ctx, "update-index", "--add", "--replace", "--cacheinfo").AddDynamicArguments(mode, object.String(), filename)
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_, _, err := cmd.RunStdString(&RunOpts{Dir: 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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stdout, _, runErr := NewCommand(repo.Ctx, "write-tree").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(strings.TrimSpace(stdout))
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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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