def main()

in tools/dev/po-merge.py [0:0]

• 69 lines of code
• 29 McCabe index (conditional complexity)

def main(argv):
    if len(argv) != 2:
        argv0 = os.path.basename(argv[0])
        sys.exit('Usage: %s <lang.po>\n'
                 '\n'
                 'This script will replace the translations and flags in lang.po (LF line endings)\n'
                 'with the translations and flags in the source po file read from standard input.\n'
                 'Strings that are not found in the source file are left untouched.\n'
                 'A backup copy of lang.po is saved as lang.po.bak.\n'
                 '\n'
                 'Example:\n'
                 '    svn cat http://svn.apache.org/repos/asf/subversion/trunk/subversion/po/sv.po | \\\n'
                 '        %s sv.po' % (argv0, argv0))

    # Read the source po file into a hash
    source = {}
    while True:
        comments, msgid, msgid_plural, msgstr = parse_translation(sys.stdin)
        if not comments and msgid is None:
            break
        if msgid is not None:
            source[msgid] = msgstr, split_comments(comments)[0]

    # Make a backup of the output file, open the copy for reading
    # and the original for writing.
    os.rename(argv[1], argv[1] + '.bak')
    infile = open(argv[1] + '.bak')
    outfile = open(argv[1], 'w')

    # Loop thought the original and replace stuff as we go
    first = 1
    string_count = 0
    update_count = 0
    untranslated = 0
    fuzzy = 0
    while True:
        comments, msgid, msgid_plural, msgstr = parse_translation(infile)
        if not comments and msgid is None:
            break
        if not first:
            outfile.write('\n')
        first = 0
        if msgid is None:
            outfile.write('\n'.join(comments) + '\n')
        else:
            string_count += 1
            # Do not update the header, and only update if the source
            # has a non-empty translation.
            if msgid != '""' and source.get(msgid, ['""', []])[0] != '""':
                other = split_comments(comments)[1]
                new_msgstr, new_flags = source[msgid]
                new_comments = other + new_flags
                if new_msgstr != msgstr or new_comments != comments:
                    update_count += 1
                    msgstr = new_msgstr
                    comments = new_comments
            outfile.write('\n'.join(comments) + '\n')
            outfile.write('msgid ' + msgid + '\n')
            if not msgid_plural:
                outfile.write('msgstr ' + msgstr[0] + '\n')
            else:
                outfile.write('msgid_plural ' + msgid_plural + '\n')
                n = 0
                for i in msgstr:
                    outfile.write('msgstr[%s] %s\n' % (n, msgstr[n]))
                    n += 1
        if msgstr is not None:
            for m in msgstr:
                if m == '""':
                    untranslated += 1
        for c in comments:
            if c.startswith('#,') and 'fuzzy' in c.split(', '):
                fuzzy += 1

    # We're done.  Tell the user what we did.
    print(('%d strings updated. '
          '%d fuzzy strings. '
          '%d of %d strings are still untranslated (%.0f%%).' %
          (update_count, fuzzy, untranslated, string_count,
           100.0 * untranslated / string_count)))