Attachment 10256 Details for Bug 49060

migrate-ucs-template-python3.py

migrate-ucs-template-python3.py (text/x-python), 1.78 KB, created by Florian Best on 2019-12-06 12:26 CET

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Creator: Florian Best

Created: 2019-12-06 12:26 CET

Size: 1.78 KB

patch

obsolete

>#!/usr/bin/python2.7
># -*- coding: utf-8 -*-
>
>from __future__ import print_function
>
>import os
>import re
>import sys
>import tempfile
>import subprocess
>
>EXECUTE_TOKEN = re.compile('@!@')
>
>
>futurize_args = [
>	'-f', 'libfuturize.fixes.fix_print_with_import',
>	'-f', 'libfuturize.fixes.fix_raise',
>	'-f', 'lib2to3.fixes.fix_throw',
>	'-f', 'lib2to3.fixes.fix_sys_exc',
>	'-f', 'lib2to3.fixes.fix_map',
>	'-f', 'lib2to3.fixes.fix_isinstance',
>	'-f', 'lib2to3.fixes.fix_has_key',  # problematic due to UDM?
>	'-f', 'lib2to3.fixes.fix_exec',
>	'-f', 'lib2to3.fixes.fix_except',
>]
>
>
>def migrate(name):
>	with open(name, 'rb') as fd:
>		template = fd.read()
>	while True:
>		i = EXECUTE_TOKEN.finditer(template)
>		try:
>			start = next(i)
>			end = next(i)
>
>			value = template[start.end():end.start()]
>			with tempfile.NamedTemporaryFile(suffix='.py') as fd:
>				fd.write(value)
>				fd.flush()
>				try:
>					with open(os.devnull) as devnull:
>						subprocess.check_call(['futurize', '-wn', '--no-diffs'] + futurize_args + [fd.name], stdout=devnull, stderr=subprocess.STDOUT, close_fds=True)
>				except subprocess.CalledProcessError:
>					print('futurize failed for %s' % (name,), file=sys.stderr)
>					return
>				value = open(fd.name, 'rb').read()
>				value = value.replace('from __future__ import print_function\n', '')
>			template = template[:start.start()] + '@!3@' + value + '@!3@' + template[end.end():]
>			with open(name, 'wb') as fd:
>				fd.write(template)
>		except StopIteration:
>			break
>		with open(name, 'rb') as fd:
>			new_template = fd.read().replace('@!3@', '@!@')
>		with open(name, 'wb') as fd:
>			fd.write(new_template)
>
>
>if __name__ == '__main__':
>	files = subprocess.check_output("find */*/conffiles -type f  -exec grep -l -F '@!@'  {} +", shell=True, close_fds=True).splitlines()
>	for filename in files:
>		migrate(filename)

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Attachments on bug 49060: 10116 | 10256