Function GetCommitDeletedFiles

vcs/git/git_diff.go:293–317

GetCommitDeletedFiles finds all files that were deleted by a specific commit. Returns absolute paths. Their content no longer exists in the commit, so read it from the commit's parent (see ResolveFirstParent).

(repoPath, commitID string)

// Returns absolute paths. Their content no longer exists in the commit, so read
// it from the commit's parent (see ResolveFirstParent).
func GetCommitDeletedFiles(repoPath, commitID string) ([]string, error) {
	if _, err := os.Stat(repoPath); os.IsNotExist(err) {
		return nil, fmt.Errorf("repository path does not exist: %s", repoPath)
	}
	if !isGitRepository(repoPath) {
		return nil, fmt.Errorf("%s is not a git repository (use 'git init' to initialize)", repoPath)
	}
	if err := validateCommit(repoPath, commitID); err != nil {
		return nil, err
	}

	repoRoot, err := GetRepositoryRoot(repoPath)
	if err != nil {
		return nil, fmt.Errorf("failed to get repository root: %w", err)
	}

	// --diff-filter=D (uppercase) selects only deleted files, the inverse of the
	// lowercase d used elsewhere to exclude them.
	stdout, stderr, err := runGitCommand(repoPath, "diff-tree", "--no-commit-id", "--name-only", "-r", "--root", "--diff-filter=D", commitID)
	if err != nil {
		return nil, gitCommandError(err, stderr)
	}

	return toAbsolutePaths(repoRoot, parseNonEmptyLines(stdout)), nil
}

// GetCommitRangeDeletedFiles finds all files deleted between two commits.
// Returns absolute paths. Their content should be read from fromCommit.