Mercurial > hg
view tests/test-filecache.py @ 22110:26f7c8033bed
help: tweak --verbose command help hint
We used to have two slightly different message which people wouldn't read...
and then complain that they couldn't find the global options or examples.
So we unify them into one message that's upfront that STUFF IS
INTENTIONALLY HIDDEN and that looks more like our normal hint style.
author | Matt Mackall <mpm@selenic.com> |
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date | Tue, 12 Aug 2014 03:01:37 -0500 |
parents | b3684fd2ff1a |
children | ce26928cbe41 |
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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())