view contrib/automation/automation.py @ 46472:98e39f04d60e

upgrade: implement partial upgrade for upgrading persistent-nodemap

Upgrading repositories to use persistent nodemap should be fast and easy as it
requires only two things:

1) Updating the requirements
2) Writing a persistent-nodemap on disk

For both of the steps above, we don't need to edit existing revlogs.

This patch makes upgrade only do the above mentioned two steps if we are
only upgarding to use persistent-nodemap feature.

Since `nodemap.persist_nodemap()` assumes that there exists a nodemap file for
the given revlog if we are trying to call it, this patch adds `force` argument
to create a file if does not exist which is true in our upgrade case.

The test changes demonstrate that we no longer write nodemap files for manifest
after upgrade which I think is desirable.

Differential Revision: https://phab.mercurial-scm.org/D9936

#!/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)