forgejo/modules/git/repo_commit_nogogit.go
Giteabot 464bbd747e
Fix commit retrieval by tag () ()
Backport 

It is not correct to return tag data when commit data is requested, so
remove the hacky code that overwrote parts of a commit with parts of a
tag.

This fixes commit retrieval by tag for both the latest commit in the UI
and the commit info on tag webhook events.

Fixes: https://github.com/go-gitea/gitea/issues/21687
Replaces: https://github.com/go-gitea/gitea/pull/21693

<img width="324" alt="Screenshot 2022-11-13 at 15 26 37"
src="https://user-images.githubusercontent.com/115237/201526975-736c6ea7-ad6a-467a-a823-9a63d6ecb718.png">

<img width="789" alt="image"
src="https://user-images.githubusercontent.com/115237/201526876-90a13ffc-1e5c-4d76-911b-f1ae51e8eaab.png">

Co-authored-by: silverwind <me@silverwind.io>
2023-03-03 13:42:46 -06:00

158 lines
3.9 KiB
Go

// Copyright 2020 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
//go:build !gogit
package git
import (
"bufio"
"errors"
"io"
"strings"
"code.gitea.io/gitea/modules/log"
)
// ResolveReference resolves a name to a reference
func (repo *Repository) ResolveReference(name string) (string, error) {
stdout, _, err := NewCommand(repo.Ctx, "show-ref", "--hash").AddDynamicArguments(name).RunStdString(&RunOpts{Dir: repo.Path})
if err != nil {
if strings.Contains(err.Error(), "not a valid ref") {
return "", ErrNotExist{name, ""}
}
return "", err
}
stdout = strings.TrimSpace(stdout)
if stdout == "" {
return "", ErrNotExist{name, ""}
}
return stdout, nil
}
// GetRefCommitID returns the last commit ID string of given reference (branch or tag).
func (repo *Repository) GetRefCommitID(name string) (string, error) {
wr, rd, cancel := repo.CatFileBatchCheck(repo.Ctx)
defer cancel()
_, err := wr.Write([]byte(name + "\n"))
if err != nil {
return "", err
}
shaBs, _, _, err := ReadBatchLine(rd)
if IsErrNotExist(err) {
return "", ErrNotExist{name, ""}
}
return string(shaBs), nil
}
// SetReference sets the commit ID string of given reference (e.g. branch or tag).
func (repo *Repository) SetReference(name, commitID string) error {
_, _, err := NewCommand(repo.Ctx, "update-ref").AddDynamicArguments(name, commitID).RunStdString(&RunOpts{Dir: repo.Path})
return err
}
// RemoveReference removes the given reference (e.g. branch or tag).
func (repo *Repository) RemoveReference(name string) error {
_, _, err := NewCommand(repo.Ctx, "update-ref", "--no-deref", "-d").AddDynamicArguments(name).RunStdString(&RunOpts{Dir: repo.Path})
return err
}
// IsCommitExist returns true if given commit exists in current repository.
func (repo *Repository) IsCommitExist(name string) bool {
_, _, err := NewCommand(repo.Ctx, "cat-file", "-e").AddDynamicArguments(name).RunStdString(&RunOpts{Dir: repo.Path})
return err == nil
}
func (repo *Repository) getCommit(id SHA1) (*Commit, error) {
wr, rd, cancel := repo.CatFileBatch(repo.Ctx)
defer cancel()
_, _ = wr.Write([]byte(id.String() + "\n"))
return repo.getCommitFromBatchReader(rd, id)
}
func (repo *Repository) getCommitFromBatchReader(rd *bufio.Reader, id SHA1) (*Commit, error) {
_, typ, size, err := ReadBatchLine(rd)
if err != nil {
if errors.Is(err, io.EOF) || IsErrNotExist(err) {
return nil, ErrNotExist{ID: id.String()}
}
return nil, err
}
switch typ {
case "missing":
return nil, ErrNotExist{ID: id.String()}
case "tag":
// then we need to parse the tag
// and load the commit
data, err := io.ReadAll(io.LimitReader(rd, size))
if err != nil {
return nil, err
}
_, err = rd.Discard(1)
if err != nil {
return nil, err
}
tag, err := parseTagData(data)
if err != nil {
return nil, err
}
commit, err := tag.Commit(repo)
if err != nil {
return nil, err
}
return commit, nil
case "commit":
commit, err := CommitFromReader(repo, id, io.LimitReader(rd, size))
if err != nil {
return nil, err
}
_, err = rd.Discard(1)
if err != nil {
return nil, err
}
return commit, nil
default:
log.Debug("Unknown typ: %s", typ)
_, err = rd.Discard(int(size) + 1)
if err != nil {
return nil, err
}
return nil, ErrNotExist{
ID: id.String(),
}
}
}
// ConvertToSHA1 returns a Hash object from a potential ID string
func (repo *Repository) ConvertToSHA1(commitID string) (SHA1, error) {
if len(commitID) == SHAFullLength && IsValidSHAPattern(commitID) {
sha1, err := NewIDFromString(commitID)
if err == nil {
return sha1, nil
}
}
wr, rd, cancel := repo.CatFileBatchCheck(repo.Ctx)
defer cancel()
_, err := wr.Write([]byte(commitID + "\n"))
if err != nil {
return SHA1{}, err
}
sha, _, _, err := ReadBatchLine(rd)
if err != nil {
if IsErrNotExist(err) {
return SHA1{}, ErrNotExist{commitID, ""}
}
return SHA1{}, err
}
return MustIDFromString(string(sha)), nil
}