mirror of
https://github.com/go-gitea/gitea.git
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* enable paggination for repoTags * precalculate first, cut slice second * Apply suggestions from code review Co-Authored-By: guillep2k <18600385+guillep2k@users.noreply.github.com> Co-authored-by: guillep2k <18600385+guillep2k@users.noreply.github.com>
287 lines
7.1 KiB
Go
287 lines
7.1 KiB
Go
// Copyright 2015 The Gogs Authors. All rights reserved.
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// Copyright 2019 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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package git
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import (
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"fmt"
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"strings"
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"github.com/mcuadros/go-version"
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"gopkg.in/src-d/go-git.v4/plumbing"
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)
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// TagPrefix tags prefix path on the repository
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const TagPrefix = "refs/tags/"
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// IsTagExist returns true if given tag exists in the repository.
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func IsTagExist(repoPath, name string) bool {
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return IsReferenceExist(repoPath, TagPrefix+name)
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}
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// IsTagExist returns true if given tag exists in the repository.
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func (repo *Repository) IsTagExist(name string) bool {
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_, err := repo.gogitRepo.Reference(plumbing.ReferenceName(TagPrefix+name), true)
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return err == nil
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}
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// CreateTag create one tag in the repository
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func (repo *Repository) CreateTag(name, revision string) error {
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_, err := NewCommand("tag", "--", name, revision).RunInDir(repo.Path)
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return err
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}
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// CreateAnnotatedTag create one annotated tag in the repository
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func (repo *Repository) CreateAnnotatedTag(name, message, revision string) error {
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_, err := NewCommand("tag", "-a", "-m", message, "--", name, revision).RunInDir(repo.Path)
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return err
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}
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func (repo *Repository) getTag(id SHA1) (*Tag, error) {
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t, ok := repo.tagCache.Get(id.String())
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if ok {
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log("Hit cache: %s", id)
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tagClone := *t.(*Tag)
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return &tagClone, nil
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}
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// Get tag name
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name, err := repo.GetTagNameBySHA(id.String())
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if err != nil {
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return nil, err
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}
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tp, err := repo.GetTagType(id)
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if err != nil {
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return nil, err
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}
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// Get the commit ID and tag ID (may be different for annotated tag) for the returned tag object
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commitIDStr, err := repo.GetTagCommitID(name)
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if err != nil {
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// every tag should have a commit ID so return all errors
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return nil, err
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}
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commitID, err := NewIDFromString(commitIDStr)
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if err != nil {
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return nil, err
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}
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// tagID defaults to the commit ID as the tag ID and then tries to get a tag ID (only annotated tags)
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tagID := commitID
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if tagIDStr, err := repo.GetTagID(name); err != nil {
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// if the err is NotExist then we can ignore and just keep tagID as ID (is lightweight tag)
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// all other errors we return
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if !IsErrNotExist(err) {
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return nil, err
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}
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} else {
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tagID, err = NewIDFromString(tagIDStr)
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if err != nil {
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return nil, err
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}
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}
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// If type is "commit, the tag is a lightweight tag
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if ObjectType(tp) == ObjectCommit {
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commit, err := repo.GetCommit(id.String())
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if err != nil {
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return nil, err
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}
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tag := &Tag{
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Name: name,
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ID: tagID,
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Object: commitID,
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Type: string(ObjectCommit),
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Tagger: commit.Committer,
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Message: commit.Message(),
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repo: repo,
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}
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repo.tagCache.Set(id.String(), tag)
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return tag, nil
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}
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// The tag is an annotated tag with a message.
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data, err := NewCommand("cat-file", "-p", id.String()).RunInDirBytes(repo.Path)
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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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tag.Name = name
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tag.ID = id
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tag.repo = repo
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tag.Type = tp
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repo.tagCache.Set(id.String(), tag)
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return tag, nil
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}
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// GetTagNameBySHA returns the name of a tag from its tag object SHA or commit SHA
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func (repo *Repository) GetTagNameBySHA(sha string) (string, error) {
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if len(sha) < 5 {
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return "", fmt.Errorf("SHA is too short: %s", sha)
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}
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stdout, err := NewCommand("show-ref", "--tags", "-d").RunInDir(repo.Path)
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if err != nil {
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return "", err
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}
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tagRefs := strings.Split(stdout, "\n")
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for _, tagRef := range tagRefs {
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if len(strings.TrimSpace(tagRef)) > 0 {
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fields := strings.Fields(tagRef)
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if strings.HasPrefix(fields[0], sha) && strings.HasPrefix(fields[1], TagPrefix) {
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name := fields[1][len(TagPrefix):]
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// annotated tags show up twice, we should only return if is not the ^{} ref
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if !strings.HasSuffix(name, "^{}") {
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return name, nil
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}
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}
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}
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}
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return "", ErrNotExist{ID: sha}
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}
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// GetTagID returns the object ID for a tag (annotated tags have both an object SHA AND a commit SHA)
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func (repo *Repository) GetTagID(name string) (string, error) {
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stdout, err := NewCommand("show-ref", "--tags", "--", name).RunInDir(repo.Path)
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if err != nil {
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return "", err
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}
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// Make sure exact match is used: "v1" != "release/v1"
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for _, line := range strings.Split(stdout, "\n") {
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fields := strings.Fields(line)
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if len(fields) == 2 && fields[1] == "refs/tags/"+name {
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return fields[0], nil
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}
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}
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return "", ErrNotExist{ID: name}
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}
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// GetTag returns a Git tag by given name.
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func (repo *Repository) GetTag(name string) (*Tag, error) {
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idStr, err := repo.GetTagID(name)
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if err != nil {
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return nil, err
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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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tag, err := repo.getTag(id)
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if err != nil {
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return nil, err
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}
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return tag, nil
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}
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// GetTagInfos returns all tag infos of the repository.
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func (repo *Repository) GetTagInfos(page, pageSize int) ([]*Tag, error) {
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// TODO this a slow implementation, makes one git command per tag
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stdout, err := NewCommand("tag").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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tagNames := strings.Split(strings.TrimRight(stdout, "\n"), "\n")
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if page != 0 {
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skip := (page - 1) * pageSize
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if skip >= len(tagNames) {
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return nil, nil
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}
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if (len(tagNames) - skip) < pageSize {
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pageSize = len(tagNames) - skip
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}
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tagNames = tagNames[skip : skip+pageSize]
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}
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var tags = make([]*Tag, 0, len(tagNames))
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for _, tagName := range tagNames {
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tagName = strings.TrimSpace(tagName)
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if len(tagName) == 0 {
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continue
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}
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tag, err := repo.GetTag(tagName)
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if err != nil {
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return nil, err
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}
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tag.Name = tagName
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tags = append(tags, tag)
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}
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sortTagsByTime(tags)
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return tags, nil
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}
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// GetTags returns all tags of the repository.
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func (repo *Repository) GetTags() ([]string, error) {
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var tagNames []string
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tags, err := repo.gogitRepo.Tags()
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if err != nil {
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return nil, err
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}
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_ = tags.ForEach(func(tag *plumbing.Reference) error {
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tagNames = append(tagNames, strings.TrimPrefix(tag.Name().String(), TagPrefix))
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return nil
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})
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version.Sort(tagNames)
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// Reverse order
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for i := 0; i < len(tagNames)/2; i++ {
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j := len(tagNames) - i - 1
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tagNames[i], tagNames[j] = tagNames[j], tagNames[i]
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}
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return tagNames, nil
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}
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// GetTagType gets the type of the tag, either commit (simple) or tag (annotated)
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func (repo *Repository) GetTagType(id SHA1) (string, error) {
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// Get tag type
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stdout, err := NewCommand("cat-file", "-t", id.String()).RunInDir(repo.Path)
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if err != nil {
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return "", err
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}
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if len(stdout) == 0 {
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return "", ErrNotExist{ID: id.String()}
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}
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return strings.TrimSpace(stdout), nil
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}
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// GetAnnotatedTag returns a Git tag by its SHA, must be an annotated tag
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func (repo *Repository) GetAnnotatedTag(sha string) (*Tag, error) {
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id, err := NewIDFromString(sha)
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if err != nil {
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return nil, err
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}
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// Tag type must be "tag" (annotated) and not a "commit" (lightweight) tag
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if tagType, err := repo.GetTagType(id); err != nil {
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return nil, err
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} else if ObjectType(tagType) != ObjectTag {
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// not an annotated tag
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return nil, ErrNotExist{ID: id.String()}
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}
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tag, err := repo.getTag(id)
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if err != nil {
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return nil, err
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}
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return tag, nil
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}
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