Mercurial > hg
view i18n/hggettext @ 51516:e0f92bd98c24 stable
phases: avoid a potentially costly dictionary interation in some case
If we retract for the draft phase, there is not non-public item to be retracted
and we can skip this part. This part is was apparently super costly thanks to
Python.
On mozilla-try-2019-02-18, a perf::unbundle call with a 10 000 changesets
bundle gives give use the following timing.
e57d4b868a3e: 4.6 seconds
ac1c75188440: 102.5 seconds
this-changeset: 30.0 seconds
So we recovered about ⅔ of the regression, the next changeset will give us the
rest back.
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
---|---|
date | Mon, 25 Mar 2024 01:50:31 +0100 |
parents | 6000f5b25c9b |
children | f4733654f144 |
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#!/usr/bin/env python3 # # hggettext - carefully extract docstrings for Mercurial # # Copyright 2009 Olivia Mackall <olivia@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. """ 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)