tests/ls-l.py

setup: exclude the git extension from py2 builds

This can't be built on Windows with the py2 compiler, and while old versions can
be installed via pip on Linux, I can't get the tests to run (even with py3.8)
using pygit2 0.28.2.  Some manually run commands work, and others spew stack
traces that don't occur with the current 1.4.0 release using py3.

Differential Revision: https://phab.mercurial-scm.org/D9604

#!/usr/bin/env python3

# like ls -l, but do not print date, user, or non-common mode bit, to avoid
# using globs in tests.
from __future__ import absolute_import, print_function

import os
import stat
import sys


def modestr(st):
    mode = st.st_mode
    result = ''
    if mode & stat.S_IFDIR:
        result += 'd'
    else:
        result += '-'
    for owner in ['USR', 'GRP', 'OTH']:
        for action in ['R', 'W', 'X']:
            if mode & getattr(stat, 'S_I%s%s' % (action, owner)):
                result += action.lower()
            else:
                result += '-'
    return result


def sizestr(st):
    if st.st_mode & stat.S_IFREG:
        return '%7d' % st.st_size
    else:
        # do not show size for non regular files
        return ' ' * 7


os.chdir((sys.argv[1:] + ['.'])[0])

for name in sorted(os.listdir('.')):
    st = os.stat(name)
    print('%s %s %s' % (modestr(st), sizestr(st), name))