hg

packaging: add pygit2 to the py3 Windows installers

This is needed to be able to use the git extension.

The extension no longer complains about the library being not installed, but
`hg log -r .` on a repo that works in WSL yielded a TypeError:

      ...
      File "mercurial.hg", line 188, in _peerorrepo
      File "mercurial.localrepo", line 3224, in instance
      File "mercurial.localrepo", line 623, in makelocalrepository
      File "hgext.git", line 117, in _makestore
      File "hgext.git", line 48, in __init__
    TypeError: Repository unable to unpack backend.

Differential Revision: https://phab.mercurial-scm.org/D9405

#!/usr/bin/env python3
#
# mercurial - scalable distributed SCM
#
# Copyright 2005-2007 Matt Mackall <[e-mail]>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
from __future__ import absolute_import

import os
import sys

libdir = '@LIBDIR@'

if libdir != '@' 'LIBDIR' '@':
    if not os.path.isabs(libdir):
        libdir = os.path.join(
            os.path.dirname(os.path.realpath(__file__)), libdir
        )
        libdir = os.path.abspath(libdir)
    sys.path.insert(0, libdir)

from hgdemandimport import tracing

with tracing.log('hg script'):
    # enable importing on demand to reduce startup time
    try:
        if sys.version_info[0] < 3 or sys.version_info >= (3, 6):
            import hgdemandimport

            hgdemandimport.enable()
    except ImportError:
        sys.stderr.write(
            "abort: couldn't find mercurial libraries in [%s]\n"
            % ' '.join(sys.path)
        )
        sys.stderr.write("(check your install and PYTHONPATH)\n")
        sys.exit(-1)

    from mercurial import dispatch

    dispatch.run()