99 lines
2.2 KiB
Go
99 lines
2.2 KiB
Go
// Copyright 2020 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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// +build !gogit
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package git
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import (
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"bufio"
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"fmt"
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"io"
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"io/ioutil"
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"strings"
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)
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func (repo *Repository) getTree(id SHA1) (*Tree, error) {
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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("cat-file", "--batch").RunInDirFullPipeline(repo.Path, stdoutWriter, stderr, strings.NewReader(id.String()+"\n"))
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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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bufReader := bufio.NewReader(stdoutReader)
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// ignore the SHA
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_, typ, size, err := ReadBatchLine(bufReader)
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if err != nil {
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return nil, err
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}
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switch typ {
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case "tag":
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resolvedID := id
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data, err := ioutil.ReadAll(io.LimitReader(bufReader, size))
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if err != nil {
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return nil, err
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}
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tag, err := parseTagData(data)
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if err != nil {
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return nil, err
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}
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commit, err := tag.Commit()
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if err != nil {
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return nil, err
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}
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commit.Tree.ResolvedID = resolvedID
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log("tag.commit.Tree: %s %v", commit.Tree.ID.String(), commit.Tree.repo)
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return &commit.Tree, nil
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case "commit":
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commit, err := CommitFromReader(repo, id, io.LimitReader(bufReader, size))
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if err != nil {
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_ = stdoutReader.CloseWithError(err)
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return nil, err
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}
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commit.Tree.ResolvedID = commit.ID
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log("commit.Tree: %s %v", commit.Tree.ID.String(), commit.Tree.repo)
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return &commit.Tree, nil
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case "tree":
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stdoutReader.Close()
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tree := NewTree(repo, id)
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tree.ResolvedID = id
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return tree, nil
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default:
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_ = stdoutReader.CloseWithError(fmt.Errorf("unknown typ: %s", typ))
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return nil, ErrNotExist{
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ID: id.String(),
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}
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}
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}
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// GetTree find the tree object in the repository.
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func (repo *Repository) GetTree(idStr string) (*Tree, error) {
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if len(idStr) != 40 {
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res, err := NewCommand("rev-parse", "--verify", idStr).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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if len(res) > 0 {
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idStr = res[:len(res)-1]
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}
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}
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id, err := NewIDFromString(idStr)
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if err != nil {
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return nil, err
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}
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return repo.getTree(id)
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}
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