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Avoid creating unnecessary temporary cat file sub process (#33942)

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Extract from #33934 

In the same goroutine, we should reuse the exist cat file sub process
which exist in `git.Repository` to avoid creating a unnecessary
temporary subprocess.

This PR reuse the exist cate file writer and reader in
`getCommitFromBatchReader`.
It also move `prepareLatestCommitInfo` before creating dataRc which will
hold the writer so other git operation will create a temporary cat file
subprocess.
This commit is contained in:
Lunny Xiao
2025-04-04 16:19:19 -07:00
committed by GitHub
parent 013b2686fe
commit 7a09bc904a
8 changed files with 43 additions and 29 deletions
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10
modules/git/repo_commit_nogogit.go
View File

@ -81,10 +81,10 @@ func (repo *Repository) getCommit(id ObjectID) (*Commit, error) {
_, _ = wr.Write([]byte(id.String() + "\n"))
return repo.getCommitFromBatchReader(rd, id)
return repo.getCommitFromBatchReader(wr, rd, id)
}
func (repo *Repository) getCommitFromBatchReader(rd *bufio.Reader, id ObjectID) (*Commit, error) {
func (repo *Repository) getCommitFromBatchReader(wr WriteCloserError, rd *bufio.Reader, id ObjectID) (*Commit, error) {
_, typ, size, err := ReadBatchLine(rd)
if err != nil {
if errors.Is(err, io.EOF) || IsErrNotExist(err) {
@ -112,7 +112,11 @@ func (repo *Repository) getCommitFromBatchReader(rd *bufio.Reader, id ObjectID)
return nil, err
}
commit, err := tag.Commit(repo)
if _, err := wr.Write([]byte(tag.Object.String() + "\n")); err != nil {
return nil, err
}
commit, err := repo.getCommitFromBatchReader(wr, rd, tag.Object)
if err != nil {
return nil, err
}