Mercurial > hg
view tests/svn-safe-append.py @ 38865:899b4c74209c
fileset: combine union of basic patterns into single matcher
This appears to improve query performance in a big repository than I thought.
Writing less Python in a hot loop, faster computation we gain.
$ hg files --cwd mozilla-central --time 'set:a* + b* + c* + d* + e*'
(orig) time: real 0.670 secs (user 0.640+0.000 sys 0.030+0.000)
(new) time: real 0.210 secs (user 0.180+0.000 sys 0.020+0.000)
author | Yuya Nishihara <yuya@tcha.org> |
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date | Sat, 21 Jul 2018 17:19:12 +0900 |
parents | ffa3026d4196 |
children | e1e10cbb5568 |
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#!/usr/bin/env python from __future__ import absolute_import __doc__ = """Same as `echo a >> b`, but ensures a changed mtime of b. Without this svn will not detect workspace changes.""" import os import stat import sys text = sys.argv[1] fname = sys.argv[2] f = open(fname, "ab") try: before = os.fstat(f.fileno())[stat.ST_MTIME] f.write(text) f.write("\n") finally: f.close() inc = 1 now = os.stat(fname)[stat.ST_MTIME] while now == before: t = now + inc inc += 1 os.utime(fname, (t, t)) now = os.stat(fname)[stat.ST_MTIME]