Function hasWorktreeChanges

src/utils/worktree.ts:1144–1173

(
  worktreePath: string,
  headCommit: string,
)

 * — callers use this to decide whether to remove a worktree, so fail-closed.
 */
export async function hasWorktreeChanges(
  worktreePath: string,
  headCommit: string,
): Promise<boolean> {
  const { code: statusCode, stdout: statusOutput } =
    await execFileNoThrowWithCwd(gitExe(), ['status', '--porcelain'], {
      cwd: worktreePath,
    })
  if (statusCode !== 0) {
    return true
  }
  if (statusOutput.trim().length > 0) {
    return true
  }

  const { code: revListCode, stdout: revListOutput } =
    await execFileNoThrowWithCwd(
      gitExe(),
      ['rev-list', '--count', `${headCommit}..HEAD`],
      { cwd: worktreePath },
    )
  if (revListCode !== 0) {
    return true
  }
  if (parseInt(revListOutput.trim(), 10) > 0) {
    return true
  }

  return false
}

/**
 * Fast-path handler for --worktree --tmux.