a2cfcdb91a
The LastCommitCache code is a little complex and there is unnecessary duplication between the gogit and nogogit variants. This PR adds the LastCommitCache as a field to the git.Repository and pre-creates it in the ReferencesGit helpers etc. There has been some simplification and unification of the variant code. Signed-off-by: Andrew Thornton <art27@cantab.net>
92 lines
2.2 KiB
Go
92 lines
2.2 KiB
Go
// 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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//go:build !gogit
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package git
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import (
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"context"
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"io"
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"strings"
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"code.gitea.io/gitea/modules/log"
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)
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// GetNote retrieves the git-notes data for a given commit.
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// FIXME: Add LastCommitCache support
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func GetNote(ctx context.Context, repo *Repository, commitID string, note *Note) error {
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log.Trace("Searching for git note corresponding to the commit %q in the repository %q", commitID, repo.Path)
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notes, err := repo.GetCommit(NotesRef)
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if err != nil {
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if IsErrNotExist(err) {
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return err
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}
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log.Error("Unable to get commit from ref %q. Error: %v", NotesRef, err)
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return err
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}
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path := ""
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tree := ¬es.Tree
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log.Trace("Found tree with ID %q while searching for git note corresponding to the commit %q", tree.ID, commitID)
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var entry *TreeEntry
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originalCommitID := commitID
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for len(commitID) > 2 {
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entry, err = tree.GetTreeEntryByPath(commitID)
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if err == nil {
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path += commitID
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break
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}
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if IsErrNotExist(err) {
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tree, err = tree.SubTree(commitID[0:2])
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path += commitID[0:2] + "/"
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commitID = commitID[2:]
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}
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if err != nil {
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// Err may have been updated by the SubTree we need to recheck if it's again an ErrNotExist
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if !IsErrNotExist(err) {
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log.Error("Unable to find git note corresponding to the commit %q. Error: %v", originalCommitID, err)
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}
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return err
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}
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}
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blob := entry.Blob()
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dataRc, err := blob.DataAsync()
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if err != nil {
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log.Error("Unable to read blob with ID %q. Error: %v", blob.ID, err)
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return err
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}
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closed := false
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defer func() {
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if !closed {
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_ = dataRc.Close()
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}
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}()
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d, err := io.ReadAll(dataRc)
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if err != nil {
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log.Error("Unable to read blob with ID %q. Error: %v", blob.ID, err)
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return err
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}
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_ = dataRc.Close()
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closed = true
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note.Message = d
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treePath := ""
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if idx := strings.LastIndex(path, "/"); idx > -1 {
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treePath = path[:idx]
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path = path[idx+1:]
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}
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lastCommits, err := GetLastCommitForPaths(ctx, notes, treePath, []string{path})
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if err != nil {
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log.Error("Unable to get the commit for the path %q. Error: %v", treePath, err)
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return err
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}
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note.Commit = lastCommits[path]
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return nil
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}
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