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1 """Some i18n/gettext utilities. |
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2 |
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3 :organization: Logilab |
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4 :copyright: 2001-2010 LOGILAB S.A. (Paris, FRANCE), license is LGPL v2. |
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5 :contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr |
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6 :license: GNU Lesser General Public License, v2.1 - http://www.gnu.org/licenses |
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7 """ |
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8 __docformat__ = "restructuredtext en" |
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9 |
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10 import re |
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11 import os |
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12 from os.path import join, basename, splitext, exists |
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13 from glob import glob |
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14 |
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15 from cubicweb.toolsutils import create_dir |
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16 |
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17 def extract_from_tal(files, output_file): |
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18 """extract i18n strings from tal and write them into the given output file |
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19 using standard python gettext marker (_) |
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20 """ |
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21 output = open(output_file, 'w') |
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22 for filepath in files: |
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23 for match in re.finditer('i18n:(content|replace)="([^"]+)"', open(filepath).read()): |
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24 print >> output, '_("%s")' % match.group(2) |
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25 output.close() |
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26 |
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27 |
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28 def add_msg(w, msgid, msgctx=None): |
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29 """write an empty pot msgid definition""" |
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30 if isinstance(msgid, unicode): |
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31 msgid = msgid.encode('utf-8') |
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32 if msgctx: |
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33 if isinstance(msgctx, unicode): |
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34 msgctx = msgctx.encode('utf-8') |
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35 w('msgctxt "%s"\n' % msgctx) |
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36 msgid = msgid.replace('"', r'\"').splitlines() |
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37 if len(msgid) > 1: |
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38 w('msgid ""\n') |
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39 for line in msgid: |
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40 w('"%s"' % line.replace('"', r'\"')) |
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41 else: |
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42 w('msgid "%s"\n' % msgid[0]) |
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43 w('msgstr ""\n\n') |
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44 |
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45 |
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46 def execute(cmd): |
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47 """display the command, execute it and raise an Exception if returned |
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48 status != 0 |
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49 """ |
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50 from subprocess import call |
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51 print cmd.replace(os.getcwd() + os.sep, '') |
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52 status = call(cmd, shell=True) |
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53 if status != 0: |
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54 raise Exception('status = %s' % status) |
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55 |
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56 |
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57 def available_catalogs(i18ndir=None): |
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58 if i18ndir is None: |
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59 wildcard = '*.po' |
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60 else: |
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61 wildcard = join(i18ndir, '*.po') |
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62 for popath in glob(wildcard): |
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63 lang = splitext(basename(popath))[0] |
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64 yield lang, popath |
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65 |
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66 |
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67 def compile_i18n_catalogs(sourcedirs, destdir, langs): |
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68 """generate .mo files for a set of languages into the `destdir` i18n directory |
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69 """ |
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70 from logilab.common.fileutils import ensure_fs_mode |
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71 print '-> compiling %s catalogs...' % destdir |
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72 errors = [] |
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73 for lang in langs: |
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74 langdir = join(destdir, lang, 'LC_MESSAGES') |
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75 if not exists(langdir): |
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76 create_dir(langdir) |
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77 pofiles = [join(path, '%s.po' % lang) for path in sourcedirs] |
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78 pofiles = [pof for pof in pofiles if exists(pof)] |
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79 mergedpo = join(destdir, '%s_merged.po' % lang) |
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80 try: |
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81 # merge instance/cubes messages catalogs with the stdlib's one |
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82 execute('msgcat --use-first --sort-output --strict -o "%s" %s' |
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83 % (mergedpo, ' '.join('"%s"' % f for f in pofiles))) |
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84 # make sure the .mo file is writeable and compiles with *msgfmt* |
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85 applmo = join(destdir, lang, 'LC_MESSAGES', 'cubicweb.mo') |
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86 try: |
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87 ensure_fs_mode(applmo) |
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88 except OSError: |
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89 pass # suppose not exists |
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90 execute('msgfmt "%s" -o "%s"' % (mergedpo, applmo)) |
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91 except Exception, ex: |
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92 errors.append('while handling language %s: %s' % (lang, ex)) |
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93 try: |
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94 # clean everything |
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95 os.unlink(mergedpo) |
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96 except Exception: |
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97 continue |
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98 return errors |