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#!/usr/bin/env python3
# vim: ft=python fileencoding=utf-8 sts=4 sw=4 et:
# Copyright 2016-2019 Florian Bruhin (The Compiler) <mail@qutebrowser.org>
#
# This file is part of qutebrowser.
#
# qutebrowser is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# qutebrowser is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with qutebrowser. If not, see <http://www.gnu.org/licenses/>.
"""Script to regenerate requirements files in misc/requirements."""
import re
import sys
import os.path
import glob
import subprocess
import tempfile
sys.path.insert(0, os.path.join(os.path.dirname(__file__), os.pardir,
os.pardir))
from scripts import utils
REPO_DIR = os.path.join(os.path.dirname(os.path.abspath(__file__)),
'..', '..') # /scripts/dev -> /scripts -> /
REQ_DIR = os.path.join(REPO_DIR, 'misc', 'requirements')
def convert_line(line, comments):
"""Convert the given requirement line to place into the output."""
for pattern, repl in comments['replace'].items():
line = re.sub(pattern, repl, line)
pkgname = line.split('=')[0]
if pkgname in comments['ignore']:
line = '# ' + line
try:
line += ' # ' + comments['comment'][pkgname]
except KeyError:
pass
try:
line += ' # rq.filter: {}'.format(comments['filter'][pkgname])
except KeyError:
pass
return line
def read_comments(fobj):
"""Find special comments in the config.
Args:
fobj: A file object for the config.
Return:
A dict with the parsed comment data.
"""
comments = {
'filter': {},
'comment': {},
'ignore': [],
'replace': {},
}
for line in fobj:
if line.startswith('#@'):
command, args = line[2:].split(':', maxsplit=1)
command = command.strip()
args = args.strip()
if command == 'filter':
pkg, filt = args.split(' ', maxsplit=1)
comments['filter'][pkg] = filt
elif command == 'comment':
pkg, comment = args.split(' ', maxsplit=1)
comments['comment'][pkg] = comment
elif command == 'ignore':
comments['ignore'] += args.split(', ')
elif command == 'replace':
pattern, replacement = args.split(' ', maxsplit=1)
comments['replace'][pattern] = replacement
return comments
def get_all_names():
"""Get all requirement names based on filenames."""
for filename in glob.glob(os.path.join(REQ_DIR, 'requirements-*.txt-raw')):
basename = os.path.basename(filename)
yield basename[len('requirements-'):-len('.txt-raw')]
def main():
"""Re-compile the given (or all) requirement files."""
names = sys.argv[1:] if len(sys.argv) > 1 else sorted(get_all_names())
for name in names:
utils.print_title(name)
filename = os.path.join(REQ_DIR,
'requirements-{}.txt-raw'.format(name))
if name == 'qutebrowser':
outfile = os.path.join(REPO_DIR, 'requirements.txt')
else:
outfile = os.path.join(REQ_DIR, 'requirements-{}.txt'.format(name))
host_python = sys.executable
with tempfile.TemporaryDirectory() as tmpdir:
subprocess.run([host_python, '-m', 'venv', tmpdir], check=True)
pip_bin = os.path.join(tmpdir, 'bin', 'pip')
subprocess.run([pip_bin, 'install', '-r', filename], check=True)
proc = subprocess.run([pip_bin, 'freeze'], check=True,
stdout=subprocess.PIPE)
reqs = proc.stdout.decode('utf-8')
with open(filename, 'r', encoding='utf-8') as f:
comments = read_comments(f)
with open(outfile, 'w', encoding='utf-8') as f:
f.write("# This file is automatically generated by "
"scripts/dev/recompile_requirements.py\n\n")
for line in reqs.splitlines():
f.write(convert_line(line, comments) + '\n')
if __name__ == '__main__':
main()
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