Mercurial > hg
view i18n/hggettext @ 46774:decc3bd3f20d
black: merge config into main pyproject.toml now that we have it
This means that naive contributors who just run `black` on a source file
will get reasonable behavior as long as they have a recent black. Yay!
This was previously D9834 but was rolled back due to test
failures. nbjoerg thinks it's time to try again, so let's give it a
shot.
Differential Revision: https://phab.mercurial-scm.org/D10185
author | Augie Fackler <augie@google.com> |
---|---|
date | Tue, 01 Dec 2020 12:59:33 -0500 |
parents | c102b704edb5 |
children | d4ba4d51f85f |
line wrap: on
line source
#!/usr/bin/env python3 # # hggettext - carefully extract docstrings for Mercurial # # Copyright 2009 Matt Mackall <mpm@selenic.com> and others # # This software may be used and distributed according to the terms of the # GNU General Public License version 2 or any later version. # The normalize function is taken from pygettext which is distributed # with Python under the Python License, which is GPL compatible. """Extract docstrings from Mercurial commands. Compared to pygettext, this script knows about the cmdtable and table dictionaries used by Mercurial, and will only extract docstrings from functions mentioned therein. Use xgettext like normal to extract strings marked as translatable and join the message cataloges to get the final catalog. """ from __future__ import absolute_import, print_function import inspect import os import re import sys def escape(s): # The order is important, the backslash must be escaped first # since the other replacements introduce new backslashes # themselves. s = s.replace('\\', '\\\\') s = s.replace('\n', '\\n') s = s.replace('\r', '\\r') s = s.replace('\t', '\\t') s = s.replace('"', '\\"') return s def normalize(s): # This converts the various Python string types into a format that # is appropriate for .po files, namely much closer to C style. lines = s.split('\n') if len(lines) == 1: s = '"' + escape(s) + '"' else: if not lines[-1]: del lines[-1] lines[-1] = lines[-1] + '\n' lines = map(escape, lines) lineterm = '\\n"\n"' s = '""\n"' + lineterm.join(lines) + '"' return s def poentry(path, lineno, s): return ( '#: %s:%d\n' % (path, lineno) + 'msgid %s\n' % normalize(s) + 'msgstr ""\n' ) doctestre = re.compile(r'^ +>>> ', re.MULTILINE) def offset(src, doc, name, lineno, default): """Compute offset or issue a warning on stdout.""" # remove doctest part, in order to avoid backslash mismatching m = doctestre.search(doc) if m: doc = doc[: m.start()] # Backslashes in doc appear doubled in src. end = src.find(doc.replace('\\', '\\\\')) if end == -1: # This can happen if the docstring contains unnecessary escape # sequences such as \" in a triple-quoted string. The problem # is that \" is turned into " and so doc wont appear in src. sys.stderr.write( "%s:%d:warning:" " unknown docstr offset, assuming %d lines\n" % (name, lineno, default) ) return default else: return src.count('\n', 0, end) def importpath(path): """Import a path like foo/bar/baz.py and return the baz module.""" if path.endswith('.py'): path = path[:-3] if path.endswith('/__init__'): path = path[:-9] path = path.replace('/', '.') mod = __import__(path) for comp in path.split('.')[1:]: mod = getattr(mod, comp) return mod def docstrings(path): """Extract docstrings from path. This respects the Mercurial cmdtable/table convention and will only extract docstrings from functions mentioned in these tables. """ mod = importpath(path) if not path.startswith('mercurial/') and mod.__doc__: with open(path) as fobj: src = fobj.read() lineno = 1 + offset(src, mod.__doc__, path, 1, 7) print(poentry(path, lineno, mod.__doc__)) functions = list(getattr(mod, 'i18nfunctions', [])) functions = [(f, True) for f in functions] cmdtable = getattr(mod, 'cmdtable', {}) if not cmdtable: # Maybe we are processing mercurial.commands? cmdtable = getattr(mod, 'table', {}) functions.extend((c[0], False) for c in cmdtable.values()) for func, rstrip in functions: if func.__doc__: docobj = func # this might be a proxy to provide formatted doc func = getattr(func, '_origfunc', func) funcmod = inspect.getmodule(func) extra = '' if funcmod.__package__ == funcmod.__name__: extra = '/__init__' actualpath = '%s%s.py' % (funcmod.__name__.replace('.', '/'), extra) src = inspect.getsource(func) lineno = inspect.getsourcelines(func)[1] doc = docobj.__doc__ origdoc = getattr(docobj, '_origdoc', '') if rstrip: doc = doc.rstrip() origdoc = origdoc.rstrip() if origdoc: lineno += offset(src, origdoc, actualpath, lineno, 1) else: lineno += offset(src, doc, actualpath, lineno, 1) print(poentry(actualpath, lineno, doc)) def rawtext(path): with open(path) as f: src = f.read() print(poentry(path, 1, src)) if __name__ == "__main__": # It is very important that we import the Mercurial modules from # the source tree where hggettext is executed. Otherwise we might # accidentally import and extract strings from a Mercurial # installation mentioned in PYTHONPATH. sys.path.insert(0, os.getcwd()) from mercurial import demandimport demandimport.enable() for path in sys.argv[1:]: if path.endswith('.txt'): rawtext(path) else: docstrings(path)