Mercurial > hg
annotate contrib/casesmash.py @ 30706:2e4862646f02
repair: speed up stripping of many roots
repair.strip() expects a set of root revisions to strip. It then
builds the full set of descedants by walking the descandants of
each. It is rare that more than a few roots get passed in, but if that
happens, it will wastefully walk the changelog for each root. So let's
just walk it once.
I noticed this because the narrowhg extension was passing not only
roots, but all the commits to strip. When there were tens of thousands
of commits to strip, this resulted in quadratic behavior with that
extension.
author | Martin von Zweigbergk <martinvonz@google.com> |
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date | Wed, 04 Jan 2017 10:07:12 -0800 |
parents | 42a7301fb4d5 |
children | 2372284d9457 |
rev | line source |
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28351
42a7301fb4d5
casesmash: use absolute_import
Pulkit Goyal <7895pulkit@gmail.com>
parents:
19378
diff
changeset
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1 from __future__ import absolute_import |
42a7301fb4d5
casesmash: use absolute_import
Pulkit Goyal <7895pulkit@gmail.com>
parents:
19378
diff
changeset
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2 import __builtin__ |
42a7301fb4d5
casesmash: use absolute_import
Pulkit Goyal <7895pulkit@gmail.com>
parents:
19378
diff
changeset
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3 import os |
42a7301fb4d5
casesmash: use absolute_import
Pulkit Goyal <7895pulkit@gmail.com>
parents:
19378
diff
changeset
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4 from mercurial import ( |
42a7301fb4d5
casesmash: use absolute_import
Pulkit Goyal <7895pulkit@gmail.com>
parents:
19378
diff
changeset
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5 util, |
42a7301fb4d5
casesmash: use absolute_import
Pulkit Goyal <7895pulkit@gmail.com>
parents:
19378
diff
changeset
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6 ) |
14730 | 7 |
8 def lowerwrap(scope, funcname): | |
9 f = getattr(scope, funcname) | |
10 def wrap(fname, *args, **kwargs): | |
11 d, base = os.path.split(fname) | |
12 try: | |
13 files = os.listdir(d or '.') | |
19378
9de689d20230
cleanup: drop unused variables and an unused import
Simon Heimberg <simohe@besonet.ch>
parents:
19322
diff
changeset
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14 except OSError: |
14730 | 15 files = [] |
16 if base in files: | |
17 return f(fname, *args, **kwargs) | |
18 for fn in files: | |
19 if fn.lower() == base.lower(): | |
20 return f(os.path.join(d, fn), *args, **kwargs) | |
21 return f(fname, *args, **kwargs) | |
22 scope.__dict__[funcname] = wrap | |
23 | |
24 def normcase(path): | |
25 return path.lower() | |
26 | |
27 os.path.normcase = normcase | |
28 | |
29 for f in 'file open'.split(): | |
30 lowerwrap(__builtin__, f) | |
31 | |
32 for f in "chmod chown open lstat stat remove unlink".split(): | |
33 lowerwrap(os, f) | |
34 | |
35 for f in "exists lexists".split(): | |
36 lowerwrap(os.path, f) | |
37 | |
38 lowerwrap(util, 'posixfile') |