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# 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='python3-ratchet@mercurial-scm.org',
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:])
|
