mirror of
https://codeberg.org/forgejo/forgejo.git
synced 2024-11-14 05:41:27 +01:00
4eb2a29910
The 4 functions are duplicated, especially as interface methods. I think we just need to keep `MustID` the only one and remove other 3. ``` MustID(b []byte) ObjectID MustIDFromString(s string) ObjectID NewID(b []byte) (ObjectID, error) NewIDFromString(s string) (ObjectID, error) ``` Introduced the new interfrace method `ComputeHash` which will replace the interface `HasherInterface`. Now we don't need to keep two interfaces. Reintroduced `git.NewIDFromString` and `git.MustIDFromString`. The new function will detect the hash length to decide which objectformat of it. If it's 40, then it's SHA1. If it's 64, then it's SHA256. This will be right if the commitID is a full one. So the parameter should be always a full commit id. @AdamMajer Please review.
136 lines
4 KiB
Go
136 lines
4 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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