[migration] don't handle data deletion anymore on schema changes
In most cases when we want to drop some entity/relation type, we don't care
whether hooks are called on their deletion. There is even low chances that some
hooks still exists, based on an old version of the schema. Last but not least,
this is horribly inefficient.
So this should be clearly documented and handled by application's programmer if
desired.
This patch removes unnecessary deletion (because table or column will be later
dropped) and reimplements the case of partial deletion (only one relation
definition among several, hence the database structure isn't modified) using
sql.
Only one test regarding deletion of inlined relation def is added as other cases
seem to be covered by existing tests.
Closes #7023315
# copyright 2003-2010 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
#
# This file is part of CubicWeb.
#
# CubicWeb is free software: you can redistribute it and/or modify it under the
# terms of the GNU Lesser General Public License as published by the Free
# Software Foundation, either version 2.1 of the License, or (at your option)
# any later version.
#
# CubicWeb 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 Lesser General Public License for more
# details.
#
# You should have received a copy of the GNU Lesser General Public License along
# with CubicWeb. If not, see <http://www.gnu.org/licenses/>.
"""Some i18n/gettext utilities."""
from __future__ import print_function
__docformat__ = "restructuredtext en"
import re
import os
from os.path import join, basename, splitext, exists
from glob import glob
from six import PY2
from cubicweb.toolsutils import create_dir
def extract_from_tal(files, output_file):
"""extract i18n strings from tal and write them into the given output file
using standard python gettext marker (_)
"""
output = open(output_file, 'w')
for filepath in files:
for match in re.finditer('i18n:(content|replace)="([^"]+)"', open(filepath).read()):
output.write('_("%s")' % match.group(2))
output.close()
def add_msg(w, msgid, msgctx=None):
"""write an empty pot msgid definition"""
if PY2 and isinstance(msgid, unicode):
msgid = msgid.encode('utf-8')
if msgctx:
if PY2 and isinstance(msgctx, unicode):
msgctx = msgctx.encode('utf-8')
w('msgctxt "%s"\n' % msgctx)
msgid = msgid.replace('"', r'\"').splitlines()
if len(msgid) > 1:
w('msgid ""\n')
for line in msgid:
w('"%s"' % line.replace('"', r'\"'))
else:
w('msgid "%s"\n' % msgid[0])
w('msgstr ""\n\n')
def execute2(args):
# XXX replace this with check_output in Python 2.7
from subprocess import Popen, PIPE, CalledProcessError
p = Popen(args, stdout=PIPE, stderr=PIPE)
out, err = p.communicate()
if p.returncode != 0:
exc = CalledProcessError(p.returncode, args[0])
exc.cmd = args
exc.data = (out, err)
raise exc
def available_catalogs(i18ndir=None):
if i18ndir is None:
wildcard = '*.po'
else:
wildcard = join(i18ndir, '*.po')
for popath in glob(wildcard):
lang = splitext(basename(popath))[0]
yield lang, popath
def compile_i18n_catalogs(sourcedirs, destdir, langs):
"""generate .mo files for a set of languages into the `destdir` i18n directory
"""
from subprocess import CalledProcessError
from logilab.common.fileutils import ensure_fs_mode
print('-> compiling message catalogs to %s' % destdir)
errors = []
for lang in langs:
langdir = join(destdir, lang, 'LC_MESSAGES')
if not exists(langdir):
create_dir(langdir)
pofiles = [join(path, '%s.po' % lang) for path in sourcedirs]
pofiles = [pof for pof in pofiles if exists(pof)]
mergedpo = join(destdir, '%s_merged.po' % lang)
try:
# merge instance/cubes messages catalogs with the stdlib's one
cmd = ['msgcat', '--use-first', '--sort-output', '--strict',
'-o', mergedpo] + pofiles
execute2(cmd)
# make sure the .mo file is writeable and compiles with *msgfmt*
applmo = join(destdir, lang, 'LC_MESSAGES', 'cubicweb.mo')
try:
ensure_fs_mode(applmo)
except OSError:
pass # suppose not exists
execute2(['msgfmt', mergedpo, '-o', applmo])
except CalledProcessError as exc:
errors.append(u'while handling language %s:\ncmd:\n%s\nstdout:\n%s\nstderr:\n%s\n' %
(lang, exc.cmd, repr(exc.data[0]), repr(exc.data[1])))
except Exception as exc:
errors.append(u'while handling language %s: %s' % (lang, exc))
try:
# clean everything
os.unlink(mergedpo)
except Exception:
continue
return errors