i18n/check-translation.py
author Matt Mackall <mpm@selenic.com>
Sun, 01 Dec 2013 21:24:26 -0600
branchstable
changeset 20164 1ddf4409229f
parent 20158 209e04a06467
child 20514 410c80539c5c
permissions -rw-r--r--
tests: fix missing import in check-translations
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#!/usr/bin/env python
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#
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# check-translation.py - check Mercurial specific translation problems
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import polib
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import re
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checkers = []
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def checker(level, msgidpat):
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    def decorator(func):
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        if msgidpat:
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            match = re.compile(msgidpat).search
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        else:
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            match = lambda msgid: True
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        checkers.append((func, level))
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        func.match = match
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        return func
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    return decorator
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def match(checker, pe):
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    """Examine whether POEntry "pe" is target of specified checker or not
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    """
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    if not checker.match(pe.msgid):
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        return
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    # examine suppression by translator comment
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    nochecker = 'no-%s-check' % checker.__name__
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    for tc in pe.tcomment.split():
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        if nochecker == tc:
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            return
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    return True
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####################
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def fatalchecker(msgidpat=None):
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    return checker('fatal', msgidpat)
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@fatalchecker(r'\$\$')
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def promptchoice(pe):
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    """Check translation of the string given to "ui.promptchoice()"
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    >>> pe = polib.POEntry(
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    ...     msgid ='prompt$$missing &sep$$missing &amp$$followed by &none',
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    ...     msgstr='prompt  missing &sep$$missing  amp$$followed by none&')
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    >>> match(promptchoice, pe)
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    True
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    >>> for e in promptchoice(pe): print e
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    number of choices differs between msgid and msgstr
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    msgstr has invalid choice missing '&'
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    msgstr has invalid '&' followed by none
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    """
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    idchoices = [c.rstrip(' ') for c in pe.msgid.split('$$')[1:]]
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    strchoices = [c.rstrip(' ') for c in pe.msgstr.split('$$')[1:]]
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    if len(idchoices) != len(strchoices):
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        yield "number of choices differs between msgid and msgstr"
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    indices = [(c, c.find('&')) for c in strchoices]
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    if [c for c, i in indices if i == -1]:
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        yield "msgstr has invalid choice missing '&'"
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    if [c for c, i in indices if len(c) == i + 1]:
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        yield "msgstr has invalid '&' followed by none"
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####################
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def warningchecker(msgidpat=None):
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    return checker('warning', msgidpat)
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####################
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def check(pofile, fatal=True, warning=False):
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    targetlevel = { 'fatal': fatal, 'warning': warning }
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    targetcheckers = [(checker, level)
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                      for checker, level in checkers
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                      if targetlevel[level]]
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    if not targetcheckers:
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        return []
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    detected = []
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    for pe in pofile.translated_entries():
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        errors = []
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        for checker, level in targetcheckers:
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            if match(checker, pe):
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                errors.extend((level, checker.__name__, error)
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                              for error in checker(pe))
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        if errors:
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            detected.append((pe, errors))
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    return detected
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########################################
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if __name__ == "__main__":
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    import sys
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    import optparse
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    optparser = optparse.OptionParser("""%prog [options] pofile ...
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This checks Mercurial specific translation problems in specified
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'*.po' files.
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Each detected problems are shown in the format below::
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    filename:linenum:type(checker): problem detail .....
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"type" is "fatal" or "warning". "checker" is the name of the function
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detecting corresponded error.
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Checking by checker "foo" on the specific msgstr can be suppressed by
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the "translator comment" like below. Multiple "no-xxxx-check" should
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be separated by whitespaces::
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   111
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    # no-foo-check
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    msgid = "....."
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    msgstr = "....."
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""")
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    optparser.add_option("", "--warning",
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                         help="show also warning level problems",
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                         action="store_true")
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    optparser.add_option("", "--doctest",
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                         help="run doctest of this tool, instead of check",
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                         action="store_true")
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    (options, args) = optparser.parse_args()
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   123
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    if options.doctest:
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        import os
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        if 'TERM' in os.environ:
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            del os.environ['TERM']
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        import doctest
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        failures, tests = doctest.testmod()
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        sys.exit(failures and 1 or 0)
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    # replace polib._POFileParser to show linenum of problematic msgstr
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    class ExtPOFileParser(polib._POFileParser):
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        def process(self, symbol, linenum):
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            super(ExtPOFileParser, self).process(symbol, linenum)
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            if symbol == 'MS': # msgstr
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                self.current_entry.linenum = linenum
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    polib._POFileParser = ExtPOFileParser
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    detected = []
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    warning = options.warning
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    for f in args:
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        detected.extend((f, pe, errors)
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                        for pe, errors in check(polib.pofile(f),
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                                                warning=warning))
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    if detected:
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        for f, pe, errors in detected:
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            for level, checker, error in errors:
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                sys.stderr.write('%s:%d:%s(%s): %s\n'
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                                 % (f, pe.linenum, level, checker, error))
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        sys.exit(1)