Function GetCommitRangeFiles

vcs/git/git_diff.go:385–431

GetCommitRangeFiles finds all files changed between two commits. Uses: git diff --name-only --diff-filter=d Returns absolute paths to all files added, modified, or renamed between the commits.

(repoPath, fromCommit, toCommit string)

// Uses: git diff --name-only --diff-filter=d <from> <to>
// Returns absolute paths to all files added, modified, or renamed between the commits.
func GetCommitRangeFiles(repoPath, fromCommit, toCommit string) ([]string, error) {
	// Validate the repository path exists
	if _, err := os.Stat(repoPath); os.IsNotExist(err) {
		return nil, fmt.Errorf("repository path does not exist: %s", repoPath)
	}

	// Verify it's a git repository
	if !isGitRepository(repoPath) {
		return nil, fmt.Errorf("%s is not a git repository (use 'git init' to initialize)", repoPath)
	}

	// Validate both commits exist
	if err := validateCommit(repoPath, fromCommit); err != nil {
		return nil, err
	}
	if err := validateCommit(repoPath, toCommit); err != nil {
		return nil, err
	}

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

	// Get files changed between the two commits
	// --diff-filter=d excludes deleted files (only include added, modified, and renamed files)
	stdout, stderr, err := runGitCommand(repoPath, "diff", "--name-only", "--diff-filter=d", fromCommit, toCommit)
	if err != nil {
		return nil, gitCommandError(err, stderr)
	}

	// Parse the output - one file per line
	var files []string
	lines := strings.Split(string(stdout), "\n")
	for _, line := range lines {
		line = strings.TrimSpace(line)
		if line != "" {
			files = append(files, line)
		}
	}

	// Convert to absolute paths
	absolutePaths := toAbsolutePaths(repoRoot, files)

	return absolutePaths, nil
}