view contrib/python3-ratchet.py @ 49779:7d6c8943353a stable

hg: show the correct message when cloning an LFS repo with extension disabled

The `extensions._disabledpaths()` doesn't handle fetching help from `__index__`,
so it returns an empty dictionary of paths.  That means None is always returned
from `extensions.disabled_help()` when embedding resources inside the pyoxidizer
or py2exe binary, regardless of the arg or if is an external extension stored in
the filesystem.  And that means wrongly telling the user with an explicitly
disabled LFS extension that it will be enabled locally upon cloning from an LFS
remote.  That causes test-lfs-serve.t:295 to fail.

This effectively reverts most of the rest of 843418dc0b1b, while keeping the
help text change in place (which was specifically identified as a problem).

# Copyright 2012 Facebook
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
"""Find tests that newly pass under Python 3.

The approach is simple: we maintain a whitelist of Python 3 passing
tests in the repository, and periodically run all the /other/ tests
and look for new passes. Any newly passing tests get automatically
added to the whitelist.

You probably want to run it like this:

  $ cd tests
  $ python3 ../contrib/python3-ratchet.py \
  >   --working-tests=../contrib/python3-whitelist
"""

import argparse
import json
import os
import subprocess
import sys

_hgenv = dict(os.environ)
_hgenv.update(
    {
        'HGPLAIN': '1',
    }
)

_HG_FIRST_CHANGE = '9117c6561b0bd7792fa13b50d28239d51b78e51f'


def _runhg(*args):
    return subprocess.check_output(args, env=_hgenv)


def _is_hg_repo(path):
    return (
        _runhg('hg', 'log', '-R', path, '-r0', '--template={node}').strip()
        == _HG_FIRST_CHANGE
    )


def _py3default():
    if sys.version_info[0] >= 3:
        return sys.executable
    return 'python3'


def main(argv=()):
    p = argparse.ArgumentParser()
    p.add_argument(
        '--working-tests', help='List of tests that already work in Python 3.'
    )
    p.add_argument(
        '--commit-to-repo',
        help='If set, commit newly fixed tests to the given repo',
    )
    p.add_argument(
        '-j',
        default=os.sysconf('SC_NPROCESSORS_ONLN'),
        type=int,
        help='Number of parallel tests to run.',
    )
    p.add_argument(
        '--python3',
        default=_py3default(),
        help='python3 interpreter to use for test run',
    )
    p.add_argument(
        '--commit-user',
        default='[e-mail]',
        help='Username to specify when committing to a repo.',
    )
    opts = p.parse_args(argv)
    if opts.commit_to_repo:
        if not _is_hg_repo(opts.commit_to_repo):
            print('abort: specified repository is not the hg repository')
            sys.exit(1)
    if not opts.working_tests or not os.path.isfile(opts.working_tests):
        print(
            'abort: --working-tests must exist and be a file (got %r)'
            % opts.working_tests
        )
        sys.exit(1)
    elif opts.commit_to_repo:
        root = _runhg('hg', 'root').strip()
        if not opts.working_tests.startswith(root):
            print(
                'abort: if --commit-to-repo is given, '
                '--working-tests must be from that repo'
            )
            sys.exit(1)
    try:
        subprocess.check_call(
            [
                opts.python3,
                '-c',
                'import sys ; '
                'assert ((3, 5) <= sys.version_info < (3, 6) '
                'or sys.version_info >= (3, 6, 2))',
            ]
        )
    except subprocess.CalledProcessError:
        print(
            'warning: Python 3.6.0 and 3.6.1 have '
            'a bug which breaks Mercurial'
        )
        print('(see https://bugs.python.org/issue29714 for details)')
        sys.exit(1)

    rt = subprocess.Popen(
        [
            opts.python3,
            'run-tests.py',
            '-j',
            str(opts.j),
            '--blacklist',
            opts.working_tests,
            '--json',
        ]
    )
    rt.wait()
    with open('report.json') as f:
        data = f.read()
    report = json.loads(data.split('=', 1)[1])
    newpass = set()
    for test, result in report.items():
        if result['result'] != 'success':
            continue
        # A new passing test! Huzzah!
        newpass.add(test)
    if newpass:
        # We already validated the repo, so we can just dive right in
        # and commit.
        if opts.commit_to_repo:
            print(len(newpass), 'new passing tests on Python 3!')
            with open(opts.working_tests) as f:
                oldpass = {l for l in f.read().splitlines() if l}
            with open(opts.working_tests, 'w') as f:
                for p in sorted(oldpass | newpass):
                    f.write('%s\n' % p)
            _runhg(
                'hg',
                'commit',
                '-R',
                opts.commit_to_repo,
                '--user',
                opts.commit_user,
                '--message',
                'python3: expand list of passing tests',
            )
        else:
            print('Newly passing tests:', '\n'.join(sorted(newpass)))
            sys.exit(2)


if __name__ == '__main__':
    main(sys.argv[1:])