Mercurial > hg
view i18n/check-translation.py @ 26379:39d643252b9f
revlog: use existing file handle when reading during _addrevision
_addrevision() may need to read from revlogs as part of computing
deltas. Previously, we would flush existing file handles and open
a new, short-lived file handle to perform the reading.
If we have an existing file handle, it seems logical to reuse it
for reading instead of opening a new file handle. This patch
makes that the new behavior.
After this patch, revlog files are only reopened when adding
revisions if the revlog is switched from inline to non-inline.
On Linux when unbundling a bundle of the mozilla-central repo, this
patch has the following impact on system call counts:
Call Before After Delta
write 827,639 673,390 -154,249
open 700,103 684,089 -16,014
read 74,489 74,489 0
fstat 493,924 461,896 -32,028
close 249,131 233,117 -16,014
stat 242,001 242,001 0
lstat 18,676 18,676 0
lseek 20,268 20,268 0
ioctl 14,652 13,173 -1,479
TOTAL 3,180,758 2,930,679 -250,079
It's worth noting that many of the open() calls fail due to missing
files. That's why there are many more open() calls than close().
Despite the significant system call reduction, this change does not
seem to have a significant performance impact on Linux.
On Windows 10 (not a VM, on a SSD), this patch appears to reduce
unbundle time for mozilla-central from ~960s to ~920s. This isn't
as significant as I was hoping. But a decrease it is nonetheless.
Still, Windows unbundle performance is still >2x slower than Linux.
Despite the lack of significant gains, fewer system calls is fewer
system calls. If nothing else, this will narrow the focus of potential
areas to optimize in the future.
author | Gregory Szorc <gregory.szorc@gmail.com> |
---|---|
date | Sun, 27 Sep 2015 16:08:18 -0700 |
parents | ad4d6c7aea6a |
children | 33894facc180 |
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#!/usr/bin/env python # # check-translation.py - check Mercurial specific translation problems import polib import re scanners = [] checkers = [] def scanner(): def decorator(func): scanners.append(func) return func return decorator def levelchecker(level, msgidpat): def decorator(func): if msgidpat: match = re.compile(msgidpat).search else: match = lambda msgid: True checkers.append((func, level)) func.match = match return func return decorator def match(checker, pe): """Examine whether POEntry "pe" is target of specified checker or not """ if not checker.match(pe.msgid): return # examine suppression by translator comment nochecker = 'no-%s-check' % checker.__name__ for tc in pe.tcomment.split(): if nochecker == tc: return return True #################### def fatalchecker(msgidpat=None): return levelchecker('fatal', msgidpat) @fatalchecker(r'\$\$') def promptchoice(pe): """Check translation of the string given to "ui.promptchoice()" >>> pe = polib.POEntry( ... msgid ='prompt$$missing &sep$$missing &$$followed by &none', ... msgstr='prompt missing &sep$$missing amp$$followed by none&') >>> match(promptchoice, pe) True >>> for e in promptchoice(pe): print e number of choices differs between msgid and msgstr msgstr has invalid choice missing '&' msgstr has invalid '&' followed by none """ idchoices = [c.rstrip(' ') for c in pe.msgid.split('$$')[1:]] strchoices = [c.rstrip(' ') for c in pe.msgstr.split('$$')[1:]] if len(idchoices) != len(strchoices): yield "number of choices differs between msgid and msgstr" indices = [(c, c.find('&')) for c in strchoices] if [c for c, i in indices if i == -1]: yield "msgstr has invalid choice missing '&'" if [c for c, i in indices if len(c) == i + 1]: yield "msgstr has invalid '&' followed by none" deprecatedpe = None @scanner() def deprecatedsetup(pofile): pes = [p for p in pofile if p.msgid == 'DEPRECATED'] if len(pes): global deprecatedpe deprecatedpe = pes[0] @fatalchecker('(DEPRECATED)') def deprecated(pe): """Check for DEPRECATED >>> ped = polib.POEntry( ... msgid = 'DEPRECATED', ... msgstr= 'DETACERPED') >>> deprecatedsetup([ped]) >>> pe = polib.POEntry( ... msgid = 'Something (DEPRECATED)', ... msgstr= 'something (DEPRECATED)') >>> match(deprecated, pe) True >>> for e in deprecated(pe): print e >>> pe = polib.POEntry( ... msgid = 'Something (DEPRECATED)', ... msgstr= 'something (DETACERPED)') >>> match(deprecated, pe) True >>> for e in deprecated(pe): print e >>> pe = polib.POEntry( ... msgid = 'Something (DEPRECATED)', ... msgstr= 'something') >>> match(deprecated, pe) True >>> for e in deprecated(pe): print e msgstr inconsistently translated (DEPRECATED) """ if not ('(DEPRECATED)' in pe.msgstr or (deprecatedpe and deprecatedpe.msgstr and deprecatedpe.msgstr in pe.msgstr)): yield "msgstr inconsistently translated (DEPRECATED)" #################### def warningchecker(msgidpat=None): return levelchecker('warning', msgidpat) @warningchecker() def taildoublecolons(pe): """Check equality of tail '::'-ness between msgid and msgstr >>> pe = polib.POEntry( ... msgid ='ends with ::', ... msgstr='ends with ::') >>> for e in taildoublecolons(pe): print e >>> pe = polib.POEntry( ... msgid ='ends with ::', ... msgstr='ends without double-colons') >>> for e in taildoublecolons(pe): print e tail '::'-ness differs between msgid and msgstr >>> pe = polib.POEntry( ... msgid ='ends without double-colons', ... msgstr='ends with ::') >>> for e in taildoublecolons(pe): print e tail '::'-ness differs between msgid and msgstr """ if pe.msgid.endswith('::') != pe.msgstr.endswith('::'): yield "tail '::'-ness differs between msgid and msgstr" @warningchecker() def indentation(pe): """Check equality of initial indentation between msgid and msgstr This may report unexpected warning, because this doesn't aware the syntax of rst document and the context of msgstr. >>> pe = polib.POEntry( ... msgid =' indented text', ... msgstr=' narrowed indentation') >>> for e in indentation(pe): print e initial indentation width differs betweeen msgid and msgstr """ idindent = len(pe.msgid) - len(pe.msgid.lstrip()) strindent = len(pe.msgstr) - len(pe.msgstr.lstrip()) if idindent != strindent: yield "initial indentation width differs betweeen msgid and msgstr" #################### def check(pofile, fatal=True, warning=False): targetlevel = { 'fatal': fatal, 'warning': warning } targetcheckers = [(checker, level) for checker, level in checkers if targetlevel[level]] if not targetcheckers: return [] detected = [] for checker in scanners: checker(pofile) for pe in pofile.translated_entries(): errors = [] for checker, level in targetcheckers: if match(checker, pe): errors.extend((level, checker.__name__, error) for error in checker(pe)) if errors: detected.append((pe, errors)) return detected ######################################## if __name__ == "__main__": import sys import optparse optparser = optparse.OptionParser("""%prog [options] pofile ... This checks Mercurial specific translation problems in specified '*.po' files. Each detected problems are shown in the format below:: filename:linenum:type(checker): problem detail ..... "type" is "fatal" or "warning". "checker" is the name of the function detecting corresponded error. Checking by checker "foo" on the specific msgstr can be suppressed by the "translator comment" like below. Multiple "no-xxxx-check" should be separated by whitespaces:: # no-foo-check msgid = "....." msgstr = "....." """) optparser.add_option("", "--warning", help="show also warning level problems", action="store_true") optparser.add_option("", "--doctest", help="run doctest of this tool, instead of check", action="store_true") (options, args) = optparser.parse_args() if options.doctest: import os if 'TERM' in os.environ: del os.environ['TERM'] import doctest failures, tests = doctest.testmod() sys.exit(failures and 1 or 0) # replace polib._POFileParser to show linenum of problematic msgstr class ExtPOFileParser(polib._POFileParser): def process(self, symbol, linenum): super(ExtPOFileParser, self).process(symbol, linenum) if symbol == 'MS': # msgstr self.current_entry.linenum = linenum polib._POFileParser = ExtPOFileParser detected = [] warning = options.warning for f in args: detected.extend((f, pe, errors) for pe, errors in check(polib.pofile(f), warning=warning)) if detected: for f, pe, errors in detected: for level, checker, error in errors: sys.stderr.write('%s:%d:%s(%s): %s\n' % (f, pe.linenum, level, checker, error)) sys.exit(1)