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Abstract hash function usage (#28138)

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Refactor Hash interfaces and centralize hash function. This will allow
easier introduction of different hash function later on.

This forms the "no-op" part of the SHA256 enablement patch.
This commit is contained in:
Adam Majer 2023-12-13 21:02:00 +00:00 • committed by GitHub
parent 064f05204c
commit cbf923e87b
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GPG key ID: 4AEE18F83AFDEB23
122 changed files with 947 additions and 594 deletions
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25
modules/git/repo_commit_nogogit.go
View file

@ -65,7 +65,7 @@ func (repo *Repository) IsCommitExist(name string) bool {
return err == nil
}
func (repo *Repository) getCommit(id SHA1) (*Commit, error) {
func (repo *Repository) getCommit(id ObjectID) (*Commit, error) {
wr, rd, cancel := repo.CatFileBatch(repo.Ctx)
defer cancel()
@ -74,7 +74,7 @@ func (repo *Repository) getCommit(id SHA1) (*Commit, error) {
return repo.getCommitFromBatchReader(rd, id)
}
func (repo *Repository) getCommitFromBatchReader(rd *bufio.Reader, id SHA1) (*Commit, error) {
func (repo *Repository) getCommitFromBatchReader(rd *bufio.Reader, id ObjectID) (*Commit, error) {
_, typ, size, err := ReadBatchLine(rd)
if err != nil {
if errors.Is(err, io.EOF) || IsErrNotExist(err) {
@ -97,7 +97,7 @@ func (repo *Repository) getCommitFromBatchReader(rd *bufio.Reader, id SHA1) (*Co
if err != nil {
return nil, err
}
tag, err := parseTagData(data)
tag, err := parseTagData(id.Type(), data)
if err != nil {
return nil, err
}
@ -131,12 +131,13 @@ func (repo *Repository) getCommitFromBatchReader(rd *bufio.Reader, id SHA1) (*Co
}
}
// ConvertToSHA1 returns a Hash object from a potential ID string
func (repo *Repository) ConvertToSHA1(commitID string) (SHA1, error) {
if len(commitID) == SHAFullLength && IsValidSHAPattern(commitID) {
sha1, err := NewIDFromString(commitID)
// ConvertToGitID returns a GitHash object from a potential ID string
func (repo *Repository) ConvertToGitID(commitID string) (ObjectID, error) {
IDType := repo.objectFormat
if len(commitID) == IDType.FullLength() && IDType.IsValid(commitID) {
ID, err := repo.objectFormat.NewIDFromString(commitID)
if err == nil {
return sha1, nil
return ID, nil
}
}
@ -144,15 +145,15 @@ func (repo *Repository) ConvertToSHA1(commitID string) (SHA1, error) {
defer cancel()
_, err := wr.Write([]byte(commitID + "\n"))
if err != nil {
return SHA1{}, err
return nil, err
}
sha, _, _, err := ReadBatchLine(rd)
if err != nil {
if IsErrNotExist(err) {
return SHA1{}, ErrNotExist{commitID, ""}
return nil, ErrNotExist{commitID, ""}
}
return SHA1{}, err
return nil, err
}
return MustIDFromString(string(sha)), nil
return repo.objectFormat.MustIDFromString(string(sha)), nil
}