contrib/automation/automation.py

make: add a target for building pyoxidizer tests on macOS

The resources seem to be embedded inside the binary, but for some reasons they
aren't read there.  And since they are embedded, they aren't staged by the build
in the `lib` directory like on Windows.  So copy them from the repo.  We can
figure out what's going wrong later.

#!/usr/bin/env python3
#
# automation.py - Perform tasks on remote machines
#
# Copyright 2019 Gregory Szorc <[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.

import os
import pathlib
import subprocess
import sys
import venv


HERE = pathlib.Path(os.path.abspath(__file__)).parent
REQUIREMENTS_TXT = HERE / 'requirements.txt'
SOURCE_DIR = HERE.parent.parent
VENV = SOURCE_DIR / 'build' / 'venv-automation'


def bootstrap():
    venv_created = not VENV.exists()

    VENV.parent.mkdir(exist_ok=True)

    venv.create(VENV, with_pip=True)

    if os.name == 'nt':
        venv_bin = VENV / 'Scripts'
        pip = venv_bin / 'pip.exe'
        python = venv_bin / 'python.exe'
    else:
        venv_bin = VENV / 'bin'
        pip = venv_bin / 'pip'
        python = venv_bin / 'python'

    args = [
        str(pip),
        'install',
        '-r',
        str(REQUIREMENTS_TXT),
        '--disable-pip-version-check',
    ]

    if not venv_created:
        args.append('-q')

    subprocess.run(args, check=True)

    os.environ['HGAUTOMATION_BOOTSTRAPPED'] = '1'
    os.environ['PATH'] = '%s%s%s' % (venv_bin, os.pathsep, os.environ['PATH'])

    subprocess.run([str(python), __file__] + sys.argv[1:], check=True)


def run():
    import hgautomation.cli as cli

    # Need to strip off main Python executable.
    cli.main()


if __name__ == '__main__':
    try:
        if 'HGAUTOMATION_BOOTSTRAPPED' not in os.environ:
            bootstrap()
        else:
            run()
    except subprocess.CalledProcessError as e:
        sys.exit(e.returncode)
    except KeyboardInterrupt:
        sys.exit(1)