mirror of
https://codeberg.org/forgejo/forgejo.git
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930e38d010
Fix #28694 Generally, `refname:short` should be equal to `refname:lstrip=2` except `core.warnAmbiguousRefs is used to select the strict abbreviation mode.` ref: https://git-scm.com/docs/git-for-each-ref#Documentation/git-for-each-ref.txt-refname
238 lines
6.7 KiB
Go
238 lines
6.7 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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// SPDX-License-Identifier: MIT
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package git
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import (
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"context"
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"fmt"
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"io"
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"strings"
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"code.gitea.io/gitea/modules/git/foreachref"
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"code.gitea.io/gitea/modules/util"
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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(ctx context.Context, repoPath, name string) bool {
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return IsReferenceExist(ctx, repoPath, TagPrefix+name)
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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(repo.Ctx, "tag").AddDashesAndList(name, revision).RunStdString(&RunOpts{Dir: 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(repo.Ctx, "tag", "-a", "-m").AddDynamicArguments(message).AddDashesAndList(name, revision).RunStdString(&RunOpts{Dir: repo.Path})
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return err
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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(repo.Ctx, "show-ref", "--tags", "-d").RunStdString(&RunOpts{Dir: 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(repo.Ctx, "show-ref", "--tags").AddDashesAndList(name).RunStdString(&RunOpts{Dir: 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, name)
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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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// GetTagWithID returns a Git tag by given name and ID
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func (repo *Repository) GetTagWithID(idStr, name string) (*Tag, error) {
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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, name)
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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, int, error) {
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// Generally, refname:short should be equal to refname:lstrip=2 except core.warnAmbiguousRefs is used to select the strict abbreviation mode.
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// https://git-scm.com/docs/git-for-each-ref#Documentation/git-for-each-ref.txt-refname
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forEachRefFmt := foreachref.NewFormat("objecttype", "refname:lstrip=2", "object", "objectname", "creator", "contents", "contents:signature")
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stdoutReader, stdoutWriter := io.Pipe()
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defer stdoutReader.Close()
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defer stdoutWriter.Close()
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stderr := strings.Builder{}
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rc := &RunOpts{Dir: repo.Path, Stdout: stdoutWriter, Stderr: &stderr}
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go func() {
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err := NewCommand(repo.Ctx, "for-each-ref").
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AddOptionFormat("--format=%s", forEachRefFmt.Flag()).
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AddArguments("--sort", "-*creatordate", "refs/tags").Run(rc)
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if err != nil {
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_ = stdoutWriter.CloseWithError(ConcatenateError(err, stderr.String()))
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} else {
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_ = stdoutWriter.Close()
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}
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}()
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var tags []*Tag
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parser := forEachRefFmt.Parser(stdoutReader)
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for {
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ref := parser.Next()
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if ref == nil {
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break
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}
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tag, err := parseTagRef(repo.objectFormat, ref)
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if err != nil {
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return nil, 0, fmt.Errorf("GetTagInfos: parse tag: %w", err)
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}
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tags = append(tags, tag)
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}
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if err := parser.Err(); err != nil {
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return nil, 0, fmt.Errorf("GetTagInfos: parse output: %w", err)
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}
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sortTagsByTime(tags)
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tagsTotal := len(tags)
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if page != 0 {
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tags = util.PaginateSlice(tags, page, pageSize).([]*Tag)
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}
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return tags, tagsTotal, nil
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}
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// parseTagRef parses a tag from a 'git for-each-ref'-produced reference.
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func parseTagRef(objectFormat ObjectFormat, ref map[string]string) (tag *Tag, err error) {
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tag = &Tag{
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Type: ref["objecttype"],
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Name: ref["refname:lstrip=2"],
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}
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tag.ID, err = NewIDFromString(ref["objectname"])
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if err != nil {
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return nil, fmt.Errorf("parse objectname '%s': %w", ref["objectname"], err)
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}
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if tag.Type == "commit" {
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// lightweight tag
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tag.Object = tag.ID
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} else {
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// annotated tag
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tag.Object, err = NewIDFromString(ref["object"])
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if err != nil {
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return nil, fmt.Errorf("parse object '%s': %w", ref["object"], err)
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}
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}
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tag.Tagger, err = newSignatureFromCommitline([]byte(ref["creator"]))
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if err != nil {
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return nil, fmt.Errorf("parse tagger: %w", err)
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}
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tag.Message = ref["contents"]
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// strip PGP signature if present in contents field
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pgpStart := strings.Index(tag.Message, beginpgp)
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if pgpStart >= 0 {
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tag.Message = tag.Message[0:pgpStart]
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}
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// annotated tag with GPG signature
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if tag.Type == "tag" && ref["contents:signature"] != "" {
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payload := fmt.Sprintf("object %s\ntype commit\ntag %s\ntagger %s\n\n%s\n",
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tag.Object, tag.Name, ref["creator"], strings.TrimSpace(tag.Message))
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tag.Signature = &CommitGPGSignature{
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Signature: ref["contents:signature"],
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Payload: payload,
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}
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}
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return tag, 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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// 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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tag, err := repo.getTag(id, name)
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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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