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Use full output of git show-ref --tags to get tags for PushUpdateAddTag (#19235) #19236

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Mar 29, 2022
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44 changes: 41 additions & 3 deletions modules/git/repo_branch_gogit.go
Original file line number Diff line number Diff line change
Expand Up @@ -13,6 +13,7 @@ import (
"strings"

"github.com/go-git/go-git/v5/plumbing"
"github.com/go-git/go-git/v5/plumbing/storer"
)

// IsObjectExist returns true if given reference exists in the repository.
Expand Down Expand Up @@ -82,8 +83,9 @@ func (repo *Repository) GetBranchNames(skip, limit int) ([]string, int, error) {
}

// WalkReferences walks all the references from the repository
func WalkReferences(ctx context.Context, repoPath string, walkfn func(string) error) (int, error) {
repo, err := OpenRepositoryCtx(ctx, repoPath)
// refType should be empty, ObjectTag or ObjectBranch. All other values are equivalent to empty.
func WalkReferences(ctx context.Context, repoPath string, walkfn func(sha1, refname string) error) (int, error) {
repo, err = OpenRepositoryCtx(ctx, repoPath)
if err != nil {
return 0, err
}
Expand All @@ -97,9 +99,45 @@ func WalkReferences(ctx context.Context, repoPath string, walkfn func(string) er
defer iter.Close()

err = iter.ForEach(func(ref *plumbing.Reference) error {
err := walkfn(string(ref.Name()))
err := walkfn(ref.Hash().String(), string(ref.Name()))
i++
return err
})
return i, err
}

// WalkReferences walks all the references from the repository
func (repo *Repository) WalkReferences(arg ObjectType, skip, limit int, walkfn func(sha1, refname string) error) (int, error) {
i := 0
var iter storer.ReferenceIter
var err error
switch arg {
case ObjectTag:
iter, err = repo.gogitRepo.Tags()
case ObjectBranch:
iter, err = repo.gogitRepo.Branches()
default:
iter, err = repo.gogitRepo.References()
}
if err != nil {
return i, err
}
defer iter.Close()

err = iter.ForEach(func(ref *plumbing.Reference) error {
if i < skip {
i++
return nil
}
err := walkfn(ref.Hash().String(), string(ref.Name()))
i++
if err != nil {
return err
}
if limit != 0 && i >= skip+limit {
return storer.ErrStop
}
return nil
})
return i, err
}
35 changes: 26 additions & 9 deletions modules/git/repo_branch_nogogit.go
Original file line number Diff line number Diff line change
Expand Up @@ -68,13 +68,29 @@ func (repo *Repository) GetBranchNames(skip, limit int) ([]string, int, error) {
}

// WalkReferences walks all the references from the repository
func WalkReferences(ctx context.Context, repoPath string, walkfn func(string) error) (int, error) {
func WalkReferences(ctx context.Context, repoPath string, walkfn func(sha1, refname string) error) (int, error) {
return walkShowRef(ctx, repoPath, "", 0, 0, walkfn)
}

// WalkReferences walks all the references from the repository
// refType should be empty, ObjectTag or ObjectBranch. All other values are equivalent to empty.
func (repo *Repository) WalkReferences(refType ObjectType, skip, limit int, walkfn func(sha1, refname string) error) (int, error) {
var arg string
switch refType {
case ObjectTag:
arg = "--tags"
case ObjectBranch:
arg = "--heads"
default:
arg = ""
}

return walkShowRef(repo.Ctx, repo.Path, arg, skip, limit, walkfn)
}

// callShowRef return refs, if limit = 0 it will not limit
func callShowRef(ctx context.Context, repoPath, prefix, arg string, skip, limit int) (branchNames []string, countAll int, err error) {
countAll, err = walkShowRef(ctx, repoPath, arg, skip, limit, func(branchName string) error {
countAll, err = walkShowRef(ctx, repoPath, arg, skip, limit, func(_, branchName string) error {
branchName = strings.TrimPrefix(branchName, prefix)
branchNames = append(branchNames, branchName)

Expand All @@ -83,7 +99,7 @@ func callShowRef(ctx context.Context, repoPath, prefix, arg string, skip, limit
return
}

func walkShowRef(ctx context.Context, repoPath, arg string, skip, limit int, walkfn func(string) error) (countAll int, err error) {
func walkShowRef(ctx context.Context, repoPath, arg string, skip, limit int, walkfn func(sha1, refname string) error) (countAll int, err error) {
stdoutReader, stdoutWriter := io.Pipe()
defer func() {
_ = stdoutReader.Close()
Expand Down Expand Up @@ -125,11 +141,7 @@ func walkShowRef(ctx context.Context, repoPath, arg string, skip, limit int, wal
for limit == 0 || i < skip+limit {
// The output of show-ref is simply a list:
// <sha> SP <ref> LF
_, err := bufReader.ReadSlice(' ')
for err == bufio.ErrBufferFull {
// This shouldn't happen but we'll tolerate it for the sake of peace
_, err = bufReader.ReadSlice(' ')
}
sha, err := bufReader.ReadString(' ')
if err == io.EOF {
return i, nil
}
Expand All @@ -149,7 +161,12 @@ func walkShowRef(ctx context.Context, repoPath, arg string, skip, limit int, wal
if len(branchName) > 0 {
branchName = branchName[:len(branchName)-1]
}
err = walkfn(branchName)

if len(sha) > 0 {
sha = sha[:len(sha)-1]
}

err = walkfn(sha, branchName)
if err != nil {
return i, err
}
Expand Down
21 changes: 21 additions & 0 deletions modules/git/repo_commitgraph.go
Original file line number Diff line number Diff line change
@@ -0,0 +1,21 @@
// Copyright 2022 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.

package git

import (
"context"
"fmt"
)

// WriteCommitGraph write commit graph to speed up repo access
// this requires git v2.18 to be installed
func WriteCommitGraph(ctx context.Context, repoPath string) error {
if CheckGitVersionAtLeast("2.18") == nil {
if _, err := NewCommandContext(ctx, "commit-graph", "write").RunInDir(repoPath); err != nil {
return fmt.Errorf("unable to write commit-graph for '%s' : %w", repoPath, err)
}
}
return nil
}
91 changes: 14 additions & 77 deletions modules/git/repo_tag.go
Original file line number Diff line number Diff line change
Expand Up @@ -10,7 +10,6 @@ import (
"fmt"
"strings"

"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/util"
)

Expand All @@ -34,69 +33,6 @@ func (repo *Repository) CreateAnnotatedTag(name, message, revision string) error
return err
}

func (repo *Repository) getTag(tagID SHA1, name string) (*Tag, error) {
t, ok := repo.tagCache.Get(tagID.String())
if ok {
log.Debug("Hit cache: %s", tagID)
tagClone := *t.(*Tag)
tagClone.Name = name // This is necessary because lightweight tags may have same id
return &tagClone, nil
}

tp, err := repo.GetTagType(tagID)
if err != nil {
return nil, err
}

// Get the commit ID and tag ID (may be different for annotated tag) for the returned tag object
commitIDStr, err := repo.GetTagCommitID(name)
if err != nil {
// every tag should have a commit ID so return all errors
return nil, err
}
commitID, err := NewIDFromString(commitIDStr)
if err != nil {
return nil, err
}

// If type is "commit, the tag is a lightweight tag
if ObjectType(tp) == ObjectCommit {
commit, err := repo.GetCommit(commitIDStr)
if err != nil {
return nil, err
}
tag := &Tag{
Name: name,
ID: tagID,
Object: commitID,
Type: tp,
Tagger: commit.Committer,
Message: commit.Message(),
}

repo.tagCache.Set(tagID.String(), tag)
return tag, nil
}

// The tag is an annotated tag with a message.
data, err := NewCommandContext(repo.Ctx, "cat-file", "-p", tagID.String()).RunInDirBytes(repo.Path)
if err != nil {
return nil, err
}

tag, err := parseTagData(data)
if err != nil {
return nil, err
}

tag.Name = name
tag.ID = tagID
tag.Type = tp

repo.tagCache.Set(tagID.String(), tag)
return tag, nil
}

// GetTagNameBySHA returns the name of a tag from its tag object SHA or commit SHA
func (repo *Repository) GetTagNameBySHA(sha string) (string, error) {
if len(sha) < 5 {
Expand Down Expand Up @@ -159,6 +95,20 @@ func (repo *Repository) GetTag(name string) (*Tag, error) {
return tag, nil
}

// GetTagWithID returns a Git tag by given name and ID
func (repo *Repository) GetTagWithID(idStr, name string) (*Tag, error) {
id, err := NewIDFromString(idStr)
if err != nil {
return nil, err
}

tag, err := repo.getTag(id, name)
if err != nil {
return nil, err
}
return tag, nil
}

// GetTagInfos returns all tag infos of the repository.
func (repo *Repository) GetTagInfos(page, pageSize int) ([]*Tag, int, error) {
// TODO this a slow implementation, makes one git command per tag
Expand Down Expand Up @@ -192,19 +142,6 @@ func (repo *Repository) GetTagInfos(page, pageSize int) ([]*Tag, int, error) {
return tags, tagsTotal, nil
}

// GetTagType gets the type of the tag, either commit (simple) or tag (annotated)
func (repo *Repository) GetTagType(id SHA1) (string, error) {
// Get tag type
stdout, err := NewCommandContext(repo.Ctx, "cat-file", "-t", id.String()).RunInDir(repo.Path)
if err != nil {
return "", err
}
if len(stdout) == 0 {
return "", ErrNotExist{ID: id.String()}
}
return strings.TrimSpace(stdout), nil
}

// GetAnnotatedTag returns a Git tag by its SHA, must be an annotated tag
func (repo *Repository) GetAnnotatedTag(sha string) (*Tag, error) {
id, err := NewIDFromString(sha)
Expand Down
82 changes: 82 additions & 0 deletions modules/git/repo_tag_gogit.go
Original file line number Diff line number Diff line change
Expand Up @@ -11,6 +11,8 @@ package git
import (
"strings"

"code.gitea.io/gitea/modules/log"

"github.com/go-git/go-git/v5/plumbing"
)

Expand Down Expand Up @@ -53,3 +55,83 @@ func (repo *Repository) GetTags(skip, limit int) ([]string, error) {

return tagNames, nil
}

// GetTagType gets the type of the tag, either commit (simple) or tag (annotated)
func (repo *Repository) GetTagType(id SHA1) (string, error) {
// Get tag type
obj, err := repo.gogitRepo.Object(plumbing.AnyObject, id)
if err != nil {
if err == plumbing.ErrReferenceNotFound {
return "", &ErrNotExist{ID: id.String()}
}
return "", err
}

return obj.Type().String(), nil
}

func (repo *Repository) getTag(tagID SHA1, name string) (*Tag, error) {
t, ok := repo.tagCache.Get(tagID.String())
if ok {
log.Debug("Hit cache: %s", tagID)
tagClone := *t.(*Tag)
tagClone.Name = name // This is necessary because lightweight tags may have same id
return &tagClone, nil
}

tp, err := repo.GetTagType(tagID)
if err != nil {
return nil, err
}

// Get the commit ID and tag ID (may be different for annotated tag) for the returned tag object
commitIDStr, err := repo.GetTagCommitID(name)
if err != nil {
// every tag should have a commit ID so return all errors
return nil, err
}
commitID, err := NewIDFromString(commitIDStr)
if err != nil {
return nil, err
}

// If type is "commit, the tag is a lightweight tag
if ObjectType(tp) == ObjectCommit {
commit, err := repo.GetCommit(commitIDStr)
if err != nil {
return nil, err
}
tag := &Tag{
Name: name,
ID: tagID,
Object: commitID,
Type: tp,
Tagger: commit.Committer,
Message: commit.Message(),
}

repo.tagCache.Set(tagID.String(), tag)
return tag, nil
}

gogitTag, err := repo.gogitRepo.TagObject(tagID)
if err != nil {
if err == plumbing.ErrReferenceNotFound {
return nil, &ErrNotExist{ID: tagID.String()}
}

return nil, err
}

tag := &Tag{
Name: name,
ID: tagID,
Object: gogitTag.Target,
Type: tp,
Tagger: &gogitTag.Tagger,
Message: gogitTag.Message,
}

repo.tagCache.Set(tagID.String(), tag)
return tag, nil
}
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