Mercurial > hg
view tests/test-revert-unknown.t @ 16943:8d08a28aa63e
matcher: use re2 bindings if available
There are two sets of Python re2 bindings available on the internet;
this code works with both.
Using re2 can greatly improve "hg status" performance when a .hgignore
file becomes even modestly complex.
Example: "hg status" on a clean tree with 134K files, where "hg
debugignore" reports a regexp 4256 bytes in size.
no .hgignore: 1.76 sec
Python re: 2.79
re2: 1.82
The overhead of regexp matching drops from 1.03 seconds with stock
re to 0.06 with re2.
(For comparison, a git repo with the same contents and .gitignore
file runs "git status -s" in 1.71 seconds, i.e. only slightly faster
than hg with re2.)
author | Bryan O'Sullivan <bryano@fb.com> |
---|---|
date | Fri, 01 Jun 2012 15:26:20 -0700 |
parents | 4c94b6d0fb1c |
children | 5c2a4f37eace |
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$ hg init $ touch unknown $ touch a $ hg add a $ hg ci -m "1" $ touch b $ hg add b $ hg ci -m "2" Should show unknown $ hg status ? unknown $ hg revert -r 0 --all removing b Should show unknown and b removed $ hg status R b ? unknown Should show a and unknown $ ls a unknown