lyx_mirror/development/tools/mergepo.py
Georg Baum 9aa43290db Add option to skip null translations
he.po in branch contains a number of translations where the translation is
identical with the original text (e.g. for encoding names) which look suspicios
to me. Therefore I did not want to merge these and leave the decision to the
translator. No information is lost, since these "translations" can easily be
recreated from the original texts by copy-paste.
2015-12-06 11:27:48 +01:00

247 lines
8.4 KiB
Python

#! /usr/bin/env python
# -*- coding: utf-8 -*-
# file mergepo.py
# This file is part of LyX, the document processor.
# Licence details can be found in the file COPYING.
# author Georg Baum
# Full author contact details are available in file CREDITS
# This script takes missing translations from another set of po files and
# merges them into the po files in this source tree.
import os, re, string, sys
import polib
from optparse import OptionParser
# we do unix/windows line trimming ourselves since it can happen that we
# are on unix, but the file has been written on windows or vice versa.
def trim_eol(line):
" Remove end of line char(s)."
if line[-2:-1] == '\r':
return line[:-2]
elif line[-1:] == '\r' or line[-1:] == '\n':
return line[:-1]
else:
# file with no EOL in last line
return line
def read(input):
" Read utf8 input file and strip lineendings."
lines = list()
while 1:
line = input.readline()
if not line:
break
line = trim_eol(line)
lines.append(line.decode('UTF-8'))
return lines
def parse_msg(lines):
" Extracts msgid or msgstr from lines."
if len(lines) < 1:
return ''
i = lines[0].find('"')
if i < 0:
return ''
msg = lines[0][i:].strip('"')
for i in range(1, len(lines)):
j = lines[i].find('"')
if j < 0:
return ''
msg = msg + lines[i][j:].strip('"')
return polib.unescape(msg)
def translate(msgid, msgstr_lines, po2, options):
msgstr = parse_msg(msgstr_lines)
if options.overwrite:
other = po2.find(msgid)
if not other:
return 0
if not other.translated():
return 0
if msgstr == other.msgstr:
return 0
else:
if msgstr != '':
return 0
other = po2.find(msgid)
if not other:
return 0
if not other.translated():
return 0
if options.nonnull and other.msgstr == other.msgid:
return 0
msgstr = other.msgstr
obsolete = (msgstr_lines[0].find('#~') == 0)
j = msgstr_lines[0].find('"')
# must not assign to msgstr_lines, because that would not be seen by our caller
new_lines = polib.wrap(msgstr_lines[0][0:j+1] + polib.escape(msgstr), 76, drop_whitespace = False)
del msgstr_lines[:]
for i in range(0, len(new_lines)):
if i == 0:
msgstr_lines.append(new_lines[i] + '"')
elif obsolete:
msgstr_lines.append('#~ "' + new_lines[i] + '"')
else:
msgstr_lines.append('"' + new_lines[i] + '"')
return 1
def mergepo_polib(target, source, options):
changed = 0
po1 = polib.pofile(target)
po2 = polib.pofile(source)
if options.overwrite:
for entry in po1.entries():
other = po2.find(entry.msgid, include_obsolete_entries=True)
if not other:
continue
if options.nonnull and other.msgstr == other.msgid:
continue
if other.translated() and other.msgstr != entry.msgstr:
entry.msgstr = other.msgstr
changed = changed + 1
else:
for entry in po1.untranslated_entries():
other = po2.find(entry.msgid, include_obsolete_entries=True)
if not other:
continue
if options.nonnull and other.msgstr == other.msgid:
continue
if other.translated():
entry.msgstr = other.msgstr
changed = changed + 1
if changed > 0:
po1.save(target)
return changed
def mergepo_minimaldiff(target, source, options):
changed = 0
po2 = polib.pofile(source)
target_enc = polib.detect_encoding(target)
# for utf8 files we can use our self written parser to minimize diffs,
# otherwise we need to use polib
if target_enc != 'UTF-8':
raise
po1 = open(target, 'rb')
oldlines = read(po1)
po1.close()
newlines = []
in_msgid = False
in_msgstr = False
msgstr_lines = []
msgid_lines = []
msgid = ''
for line in oldlines:
if in_msgid:
if line.find('"') == 0 or line.find('#~ "') == 0:
msgid_lines.append(line)
else:
in_msgid = False
msgid = parse_msg(msgid_lines)
newlines.extend(msgid_lines)
msgid_lines = []
elif in_msgstr:
if line.find('"') == 0 or line.find('#~ "') == 0:
msgstr_lines.append(line)
else:
in_msgstr = False
changed = changed + translate(msgid, msgstr_lines, po2, options)
newlines.extend(msgstr_lines)
msgstr_lines = []
msgid = ''
if not in_msgid and not in_msgstr:
if line.find('msgid') == 0 or line.find('#~ msgid') == 0:
msgid_lines.append(line)
in_msgid = True
elif line.find('msgstr') == 0 or line.find('#~ msgstr') == 0:
if line.find('msgstr[') == 0 or line.find('#~ msgstr[') == 0:
# plural forms are not implemented
raise
msgstr_lines.append(line)
in_msgstr = True
else:
newlines.append(line)
if msgid != '':
# the file ended with a msgstr
changed = changed + translate(msgid, msgstr_lines, po2, options)
newlines.extend(msgstr_lines)
msgstr_lines = []
msgid = ''
if changed > 0:
# we store .po files with unix line ends in git,
# so do always write them even on windows
po1 = open(target, 'wb')
for line in newlines:
po1.write(line.encode('UTF-8') + '\n')
return changed
def mergepo(target, source, options):
if not os.path.exists(source):
sys.stderr.write('Skipping %s since %s does not exist.\n' % (target, source))
return
if not os.path.exists(target):
sys.stderr.write('Skipping %s since %s does not exist.\n' % (target, target))
return
sys.stderr.write('Merging %s into %s: ' % (source, target))
try:
changed = mergepo_minimaldiff(target, source, options)
sys.stderr.write('Updated %d translations with minimal diff.\n' % changed)
except:
changed = mergepo_polib(target, source, options)
sys.stderr.write('Updated %d translations using polib.\n' % changed)
def main(argv):
parser = OptionParser(description = """This script reads translations from .po files in the given source directory
and adds all translations that do not already exist to the corresponding .po
files in the target directory. It is recommended to remerge strings from the
source code before running this script. Otherwise translations that are not
yet in the target .po files are not updated.""", usage = "Usage: %prog [options] sourcedir")
parser.add_option("-t", "--target", dest="target",
help="target directory containing .po files. If missing, it is determined from the script location.")
parser.add_option("-l", "--language", dest="language",
help="language for which translations are merged (if missing, all languages are merged)")
parser.add_option("-o", "--overwrite", action="store_true", dest="overwrite", default=False,
help="overwrite existing target translations with source translations (if missing, only new translations are added)")
parser.add_option("-n", "--nonnull", action="store_true", dest="nonnull", default=False,
help="do not update target translations with source translations that are identical to the untranslated text)")
(options, args) = parser.parse_args(argv)
if len(args) <= 1:
parser.print_help()
return 0
toolsdir = os.path.dirname(args[0])
if options.target:
podir1 = os.path.abspath(options.target)
else:
podir1 = os.path.normpath(os.path.join(toolsdir, '../../po'))
podir2 = os.path.abspath(args[1])
if options.language:
name = options.language + '.po'
mergepo(os.path.join(podir1, name), os.path.join(podir2, name), options)
else:
for i in os.listdir(podir1):
(base, ext) = os.path.splitext(i)
if ext != ".po":
continue
mergepo(os.path.join(podir1, i), os.path.join(podir2, i), options)
return 0
if __name__ == "__main__":
main(sys.argv)