view tests/readlink.py @ 39163:26f3d075f36e

debugcommands: use a revset instead of dagutil

All this code was doing was finding the nodes that are heads
from the ancestors of an input set. This can easily be expressed
with a revset without having to go through dagutil.

This was the last use of ancestorset() outside of dagutil itself.

Differential Revision: https://phab.mercurial-scm.org/D4308

#!/usr/bin/env python

from __future__ import absolute_import, print_function

import errno
import os
import sys

for f in sys.argv[1:]:
    try:
        print(f, '->', os.readlink(f))
    except OSError as err:
        if err.errno != errno.EINVAL:
            raise
        print(f, '->', f, 'not a symlink')

sys.exit(0)