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// Copyright 2015 The Gogs Authors. All rights reserved.
// Copyright 2019 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
//go:build gogit
// +build gogit
package git
import (
"fmt"
"strings"
"github.com/go-git/go-git/v5/plumbing"
"github.com/go-git/go-git/v5/plumbing/object"
)
// GetRefCommitID returns the last commit ID string of given reference (branch or tag).
func (repo *Repository) GetRefCommitID(name string) (string, error) {
ref, err := repo.gogitRepo.Reference(plumbing.ReferenceName(name), true)
if err != nil {
if err == plumbing.ErrReferenceNotFound {
return "", ErrNotExist{
ID: name,
}
}
return "", err
}
return ref.Hash().String(), nil
}
// ConvertToSHA1 returns a Hash object from a potential ID string
func (repo *Repository) ConvertToSHA1(commitID string) (SHA1, error) {
if len(commitID) == 40 {
sha1, err := NewIDFromString(commitID)
if err == nil {
return sha1, nil
}
}
actualCommitID, err := NewCommandContext(repo.Ctx, "rev-parse", "--verify", commitID).RunInDir(repo.Path)
if err != nil {
if strings.Contains(err.Error(), "unknown revision or path") ||
strings.Contains(err.Error(), "fatal: Needed a single revision") {
return SHA1{}, ErrNotExist{commitID, ""}
}
return SHA1{}, err
}
return NewIDFromString(actualCommitID)
}
// IsCommitExist returns true if given commit exists in current repository.
func (repo *Repository) IsCommitExist(name string) bool {
hash := plumbing.NewHash(name)
_, err := repo.gogitRepo.CommitObject(hash)
return err == nil
}
func convertPGPSignatureForTag(t *object.Tag) *CommitGPGSignature {
if t.PGPSignature == "" {
return nil
}
var w strings.Builder
var err error
if _, err = fmt.Fprintf(&w,
"object %s\ntype %s\ntag %s\ntagger ",
t.Target.String(), t.TargetType.Bytes(), t.Name); err != nil {
return nil
}
if err = t.Tagger.Encode(&w); err != nil {
return nil
}
if _, err = fmt.Fprintf(&w, "\n\n"); err != nil {
return nil
}
if _, err = fmt.Fprintf(&w, t.Message); err != nil {
return nil
}
return &CommitGPGSignature{
Signature: t.PGPSignature,
Payload: strings.TrimSpace(w.String()) + "\n",
}
}
func (repo *Repository) getCommit(id SHA1) (*Commit, error) {
var tagObject *object.Tag
gogitCommit, err := repo.gogitRepo.CommitObject(id)
if err == plumbing.ErrObjectNotFound {
tagObject, err = repo.gogitRepo.TagObject(id)
if err == plumbing.ErrObjectNotFound {
return nil, ErrNotExist{
ID: id.String(),
}
}
if err == nil {
gogitCommit, err = repo.gogitRepo.CommitObject(tagObject.Target)
}
// if we get a plumbing.ErrObjectNotFound here then the repository is broken and it should be 500
}
if err != nil {
return nil, err
}
commit := convertCommit(gogitCommit)
commit.repo = repo
if tagObject != nil {
commit.CommitMessage = strings.TrimSpace(tagObject.Message)
commit.Author = &tagObject.Tagger
commit.Signature = convertPGPSignatureForTag(tagObject)
}
tree, err := gogitCommit.Tree()
if err != nil {
return nil, err
}
commit.Tree.ID = tree.Hash
commit.Tree.gogitTree = tree
return commit, nil
}
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