Mercurial > hg
view contrib/casesmash.py @ 45450:47d10ade5bc4
histedit: cache description line
Navigating the curses-based histedit interface can be pretty slow
because it redraws everything whenever you make a change.
This patch simply replaces `@property` by `@util.propertycache` on the
`histeditrule.desc()` function so it's not re-calculated every time
the screen needs to be re-rendered. I timed it on an example of 30
simple commits, where I moved the top commit down 25 steps and then up
25 steps after. Before this patch, that (the whole `hg histedit`
invocation) took 11.6 s of CPU and after this patch it took 0.8 s).
Differential Revision: https://phab.mercurial-scm.org/D9016
author | Martin von Zweigbergk <martinvonz@google.com> |
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date | Fri, 11 Sep 2020 09:35:49 -0700 |
parents | 2372284d9457 |
children | 6000f5b25c9b |
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from __future__ import absolute_import import __builtin__ import os from mercurial import util def lowerwrap(scope, funcname): f = getattr(scope, funcname) def wrap(fname, *args, **kwargs): d, base = os.path.split(fname) try: files = os.listdir(d or '.') except OSError: files = [] if base in files: return f(fname, *args, **kwargs) for fn in files: if fn.lower() == base.lower(): return f(os.path.join(d, fn), *args, **kwargs) return f(fname, *args, **kwargs) scope.__dict__[funcname] = wrap def normcase(path): return path.lower() os.path.normcase = normcase for f in 'file open'.split(): lowerwrap(__builtin__, f) for f in "chmod chown open lstat stat remove unlink".split(): lowerwrap(os, f) for f in "exists lexists".split(): lowerwrap(os.path, f) lowerwrap(util, 'posixfile')