Function GetCommitRangeRenames

vcs/git/git_diff.go:144–164

GetCommitRangeRenames returns git's rename detection between two commits.

(repoPath, fromCommit, toCommit string)

// GetCommitRangeRenames returns git's rename detection between two commits.
func GetCommitRangeRenames(repoPath, fromCommit, toCommit string) (map[string]string, error) {
	if !isGitRepository(repoPath) {
		return nil, fmt.Errorf("%s is not a git repository (use 'git init' to initialize)", repoPath)
	}
	if err := validateCommit(repoPath, fromCommit); err != nil {
		return nil, err
	}
	if err := validateCommit(repoPath, toCommit); err != nil {
		return nil, err
	}
	repoRoot, err := GetRepositoryRoot(repoPath)
	if err != nil {
		return nil, fmt.Errorf("failed to get repository root: %w", err)
	}

	stdout, stderr, err := runGitCommand(repoPath, "diff", "-M", "--diff-filter=R", "--name-status", fromCommit, toCommit)
	if err != nil {
		return nil, gitCommandError(err, stderr)
	}
	return parseRenameNameStatus(stdout, repoRoot), nil
}

// parseRenameNameStatus parses `--name-status` rename rows ("R<score>\told\tnew")
// into an absolute old->new map, or nil when there are none.