run-tests: set a default largefiles usercache in the default hgrc file
This fixes a test failure introduced in 4be754832829 on Windows and OS X, where
the cached largefile wasn't being deleted because the named .cache directory
didn't exist. It only existed on Linux because the test suite sets $HOME to the
directory of the test being run, and Linux uses $HOME/.cache by default.
Most of the other largefiles tests explicitly set this value at the top of their
scripts, but test-largefiles-update.t didn't pick that up when it was created.
Those scripts that do set a value will override this.
We could just set the parameter in the test-largefiles-update.t script, but
there are a few other non obvious tests that exercise largefiles too. These
largefiles end up being cached in the user's real cache, so proper hygiene
dictates that this not be left to each individual test script.
import sys, os, subprocess
if subprocess.call(['python', '%s/hghave' % os.environ['TESTDIR'],
'cacheable']):
sys.exit(80)
from mercurial import util, scmutil, extensions, hg, ui
filecache = scmutil.filecache
class fakerepo(object):
def __init__(self):
self._filecache = {}
def join(self, p):
return p
def sjoin(self, p):
return p
@filecache('x', 'y')
def cached(self):
print 'creating'
return 'string from function'
def invalidate(self):
for k in self._filecache:
try:
delattr(self, k)
except AttributeError:
pass
def basic(repo):
print "* neither file exists"
# calls function
repo.cached
repo.invalidate()
print "* neither file still exists"
# uses cache
repo.cached
# create empty file
f = open('x', 'w')
f.close()
repo.invalidate()
print "* empty file x created"
# should recreate the object
repo.cached
f = open('x', 'w')
f.write('a')
f.close()
repo.invalidate()
print "* file x changed size"
# should recreate the object
repo.cached
repo.invalidate()
print "* nothing changed with either file"
# stats file again, reuses object
repo.cached
# atomic replace file, size doesn't change
# hopefully st_mtime doesn't change as well so this doesn't use the cache
# because of inode change
f = scmutil.opener('.')('x', 'w', atomictemp=True)
f.write('b')
f.close()
repo.invalidate()
print "* file x changed inode"
repo.cached
# create empty file y
f = open('y', 'w')
f.close()
repo.invalidate()
print "* empty file y created"
# should recreate the object
repo.cached
f = open('y', 'w')
f.write('A')
f.close()
repo.invalidate()
print "* file y changed size"
# should recreate the object
repo.cached
f = scmutil.opener('.')('y', 'w', atomictemp=True)
f.write('B')
f.close()
repo.invalidate()
print "* file y changed inode"
repo.cached
f = scmutil.opener('.')('x', 'w', atomictemp=True)
f.write('c')
f.close()
f = scmutil.opener('.')('y', 'w', atomictemp=True)
f.write('C')
f.close()
repo.invalidate()
print "* both files changed inode"
repo.cached
def fakeuncacheable():
def wrapcacheable(orig, *args, **kwargs):
return False
def wrapinit(orig, *args, **kwargs):
pass
originit = extensions.wrapfunction(util.cachestat, '__init__', wrapinit)
origcacheable = extensions.wrapfunction(util.cachestat, 'cacheable',
wrapcacheable)
for fn in ['x', 'y']:
try:
os.remove(fn)
except OSError:
pass
basic(fakerepo())
util.cachestat.cacheable = origcacheable
util.cachestat.__init__ = originit
def test_filecache_synced():
# test old behaviour that caused filecached properties to go out of sync
os.system('hg init && echo a >> a && hg ci -qAm.')
repo = hg.repository(ui.ui())
# first rollback clears the filecache, but changelog to stays in __dict__
repo.rollback()
repo.commit('.')
# second rollback comes along and touches the changelog externally
# (file is moved)
repo.rollback()
# but since changelog isn't under the filecache control anymore, we don't
# see that it changed, and return the old changelog without reconstructing
# it
repo.commit('.')
def setbeforeget(repo):
os.remove('x')
os.remove('y')
repo.cached = 'string set externally'
repo.invalidate()
print "* neither file exists"
print repo.cached
repo.invalidate()
f = open('x', 'w')
f.write('a')
f.close()
print "* file x created"
print repo.cached
repo.cached = 'string 2 set externally'
repo.invalidate()
print "* string set externally again"
print repo.cached
repo.invalidate()
f = open('y', 'w')
f.write('b')
f.close()
print "* file y created"
print repo.cached
print 'basic:'
print
basic(fakerepo())
print
print 'fakeuncacheable:'
print
fakeuncacheable()
test_filecache_synced()
print
print 'setbeforeget:'
print
setbeforeget(fakerepo())