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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 := NewCommand("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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