store: optimize fncache._load a bit by dirdecoding the contents in one go
For a netbeans clone on Windows 7 x64:
Before:
$ hg perffncacheload
! wall 0.124000 comb 0.124801 user 0.124801 sys 0.000000 (best of 76)
After:
$ hg perffncacheload
! wall 0.096000 comb 0.093601 user 0.078001 sys 0.015600 (best of 97)
import os
from mercurial import hg, ui
from mercurial.scmutil import walkrepos
from mercurial.util import checklink
from os import mkdir, chdir
from os.path import join as pjoin
u = ui.ui()
sym = checklink('.')
hg.repository(u, 'top1', create=1)
mkdir('subdir')
chdir('subdir')
hg.repository(u, 'sub1', create=1)
mkdir('subsubdir')
chdir('subsubdir')
hg.repository(u, 'subsub1', create=1)
chdir(os.path.pardir)
if sym:
os.symlink(os.path.pardir, 'circle')
os.symlink(pjoin('subsubdir', 'subsub1'), 'subsub1')
def runtest():
reposet = frozenset(walkrepos('.', followsym=True))
if sym and (len(reposet) != 3):
print "reposet = %r" % (reposet,)
print ("Found %d repositories when I should have found 3"
% (len(reposet),))
if (not sym) and (len(reposet) != 2):
print "reposet = %r" % (reposet,)
print ("Found %d repositories when I should have found 2"
% (len(reposet),))
sub1set = frozenset((pjoin('.', 'sub1'),
pjoin('.', 'circle', 'subdir', 'sub1')))
if len(sub1set & reposet) != 1:
print "sub1set = %r" % (sub1set,)
print "reposet = %r" % (reposet,)
print "sub1set and reposet should have exactly one path in common."
sub2set = frozenset((pjoin('.', 'subsub1'),
pjoin('.', 'subsubdir', 'subsub1')))
if len(sub2set & reposet) != 1:
print "sub2set = %r" % (sub2set,)
print "reposet = %r" % (reposet,)
print "sub1set and reposet should have exactly one path in common."
sub3 = pjoin('.', 'circle', 'top1')
if sym and sub3 not in reposet:
print "reposet = %r" % (reposet,)
print "Symbolic links are supported and %s is not in reposet" % (sub3,)
runtest()
if sym:
# Simulate not having symlinks.
del os.path.samestat
sym = False
runtest()