forked from mirror/gitea
4eb2a29910
The 4 functions are duplicated, especially as interface methods. I think we just need to keep `MustID` the only one and remove other 3. ``` MustID(b []byte) ObjectID MustIDFromString(s string) ObjectID NewID(b []byte) (ObjectID, error) NewIDFromString(s string) (ObjectID, error) ``` Introduced the new interfrace method `ComputeHash` which will replace the interface `HasherInterface`. Now we don't need to keep two interfaces. Reintroduced `git.NewIDFromString` and `git.MustIDFromString`. The new function will detect the hash length to decide which objectformat of it. If it's 40, then it's SHA1. If it's 64, then it's SHA256. This will be right if the commitID is a full one. So the parameter should be always a full commit id. @AdamMajer Please review.
132 lines
3.1 KiB
Go
132 lines
3.1 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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// SPDX-License-Identifier: MIT
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//go:build !gogit
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package git
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import (
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"errors"
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"io"
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"code.gitea.io/gitea/modules/log"
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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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if repo == nil || name == "" {
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return false
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}
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return repo.IsReferenceExist(TagPrefix + name)
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}
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// GetTags returns all tags of the repository.
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// returning at most limit tags, or all if limit is 0.
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func (repo *Repository) GetTags(skip, limit int) (tags []string, err error) {
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tags, _, err = callShowRef(repo.Ctx, repo.Path, TagPrefix, TrustedCmdArgs{TagPrefix, "--sort=-taggerdate"}, skip, limit)
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return tags, err
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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 ObjectID) (string, error) {
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wr, rd, cancel := repo.CatFileBatchCheck(repo.Ctx)
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defer cancel()
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_, err := wr.Write([]byte(id.String() + "\n"))
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if err != nil {
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return "", err
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}
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_, typ, _, err := ReadBatchLine(rd)
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if IsErrNotExist(err) {
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return "", ErrNotExist{ID: id.String()}
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}
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return typ, nil
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}
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func (repo *Repository) getTag(tagID ObjectID, name string) (*Tag, error) {
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t, ok := repo.tagCache.Get(tagID.String())
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if ok {
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log.Debug("Hit cache: %s", tagID)
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tagClone := *t.(*Tag)
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tagClone.Name = name // This is necessary because lightweight tags may have same id
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return &tagClone, nil
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}
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tp, err := repo.GetTagType(tagID)
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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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// 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(commitIDStr)
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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: tp,
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Tagger: commit.Committer,
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Message: commit.Message(),
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}
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repo.tagCache.Set(tagID.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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wr, rd, cancel := repo.CatFileBatch(repo.Ctx)
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defer cancel()
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if _, err := wr.Write([]byte(tagID.String() + "\n")); err != nil {
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return nil, err
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}
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_, typ, size, err := ReadBatchLine(rd)
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if err != nil {
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if errors.Is(err, io.EOF) || IsErrNotExist(err) {
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return nil, ErrNotExist{ID: tagID.String()}
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}
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return nil, err
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}
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if typ != "tag" {
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return nil, ErrNotExist{ID: tagID.String()}
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}
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// then we need to parse the tag
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// and load the commit
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data, err := io.ReadAll(io.LimitReader(rd, size))
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if err != nil {
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return nil, err
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}
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_, err = rd.Discard(1)
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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(tagID.Type(), 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 = tagID
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tag.Type = tp
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repo.tagCache.Set(tagID.String(), tag)
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return tag, nil
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}
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