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Do not assume all 40 char strings are SHA1s (#14624) #14648

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merged 1 commit into from
Feb 13, 2021
Merged

Do not assume all 40 char strings are SHA1s (#14624) #14648

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26 changes: 15 additions & 11 deletions modules/git/repo_commit.go
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Original file line number Diff line number Diff line change
Expand Up @@ -129,19 +129,23 @@ func (repo *Repository) getCommit(id SHA1) (*Commit, error) {

// ConvertToSHA1 returns a Hash object from a potential ID string
func (repo *Repository) ConvertToSHA1(commitID string) (SHA1, error) {
if len(commitID) != 40 {
var err error
actualCommitID, err := NewCommand("rev-parse", "--verify", commitID).RunInDir(repo.Path)
if err != nil {
if strings.Contains(err.Error(), "unknown revision or path") ||
strings.Contains(err.Error(), "fatal: Needed a single revision") {
return SHA1{}, ErrNotExist{commitID, ""}
}
return SHA1{}, err
if len(commitID) == 40 {
sha1, err := NewIDFromString(commitID)
if err == nil {
return sha1, nil
}
}

actualCommitID, err := NewCommand("rev-parse", "--verify", commitID).RunInDir(repo.Path)
if err != nil {
if strings.Contains(err.Error(), "unknown revision or path") ||
strings.Contains(err.Error(), "fatal: Needed a single revision") {
return SHA1{}, ErrNotExist{commitID, ""}
}
commitID = actualCommitID
return SHA1{}, err
}
return NewIDFromString(commitID)

return NewIDFromString(actualCommitID)
}

// GetCommit returns commit object of by ID string.
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