def test_loaderException(self):
"""
Test that an exception raised from the loader does not break the
L{CachedFile}.
"""
counter = count()
def _loadMe(path, crashMe=False):
if crashMe:
raise Exception('It is an exception!')
return next(counter)
cf = CachedFile(self.testFile, _loadMe)
# Can we still load after the first attempt raises an exception?
self.assertRaises(Exception, cf.load, True)
self.assertEqual(cf.load(), 0)
# Cache should be valid now, so a broken loader shouldn't matter
self.assertEqual(cf.load(True), 0)
# A second broken load
cf.invalidate()
self.assertRaises(Exception, cf.load, True)
self.assertEqual(cf.load(), 1)
def test_loaderException(self):
"""
Test that an exception raised from the loader does not break the
L{CachedFile}.
"""
counter = count()
def _loadMe(path, crashMe=False):
if crashMe:
raise Exception('It is an exception!')
return next(counter)
cf = CachedFile(self.testFile, _loadMe)
# Can we still load after the first attempt raises an exception?
self.assertRaises(Exception, cf.load, True)
self.assertEqual(cf.load(), 0)
# Cache should be valid now, so a broken loader shouldn't matter
self.assertEqual(cf.load(True), 0)
# A second broken load
cf.invalidate()
self.assertRaises(Exception, cf.load, True)
self.assertEqual(cf.load(), 1)
class JSModule(object):
_modules = {}
lastModified = 0
deps = None
packageDeps = []
def getOrCreate(cls, name, mapping):
# XXX This implementation of getOrCreate precludes the
# simultaneous co-existence of several different package
# namespaces.
if name in cls._modules:
return cls._modules[name]
mod = cls._modules[name] = cls(name, mapping)
return mod
getOrCreate = classmethod(getOrCreate)
def __init__(self, name, mapping):
self.name = name
self.mapping = mapping
if '.' in name:
parent = '.'.join(name.split('.')[:-1])
self.packageDeps = [self.getOrCreate(parent, mapping)]
self._cache = CachedFile(self.mapping[self.name], self._getDeps)
def __repr__(self):
return 'JSModule(%r)' % (self.name, )
_importExpression = re.compile('^// import (.+)$', re.MULTILINE)
def _extractImports(self, fileObj):
s = fileObj.read()
for m in self._importExpression.finditer(s):
yield self.getOrCreate(m.group(1).decode('ascii'), self.mapping)
def _getDeps(self, jsFile):
"""
Calculate our dependencies given the path to our source.
"""
depgen = self._extractImports(file(jsFile, 'r'))
return self.packageDeps + dict.fromkeys(depgen).keys()
def dependencies(self):
"""
Return a list of names of other JavaScript modules we depend on.
"""
return self._cache.load()
def allDependencies(self):
if self.mapping[self.name] is None:
return []
else:
mods = [self]
return dependencyOrdered(mods)
class htmlfile(object):
"""A document factory for an HTML disk template"""
implements(inevow.IDocFactory)
template = None
pattern = None
templateDir = ''
beExtremelyLenient = True
def __init__(self,
template=None,
pattern=None,
templateDir=None,
beExtremelyLenient=None):
warnings.warn(
"[v0.8] htmlfile is deprecated because it's buggy. Please start using xmlfile and/or xmlstr.",
DeprecationWarning,
stacklevel=2)
if template is not None:
self.template = template
if pattern is not None:
self.pattern = pattern
if templateDir is not None:
self.templateDir = templateDir
if beExtremelyLenient is not None:
self.beExtremelyLenient = beExtremelyLenient
_filename = os.path.join(self.templateDir, self.template)
self._cache = CachedFile(_filename, self._reallyLoad)
def _reallyLoad(self, path, ctx):
doc = microdom.parse(path, beExtremelyLenient=self.beExtremelyLenient)
doc = flat.precompile(doc, ctx)
if self.pattern is not None:
doc = inevow.IQ(doc).onePattern(self.pattern)
return doc
def load(self, ctx=None, preprocessors=()):
assert not preprocessors, "preprocessors not supported by htmlfile"
return self._cache.load(ctx)
class htmlfile(object):
"""A document factory for an HTML disk template"""
implements(inevow.IDocFactory)
template = None
pattern = None
templateDir = ""
beExtremelyLenient = True
def __init__(self, template=None, pattern=None, templateDir=None, beExtremelyLenient=None):
warnings.warn(
"[v0.8] htmlfile is deprecated because it's buggy. Please start using xmlfile and/or xmlstr.",
DeprecationWarning,
stacklevel=2,
)
if template is not None:
self.template = template
if pattern is not None:
self.pattern = pattern
if templateDir is not None:
self.templateDir = templateDir
if beExtremelyLenient is not None:
self.beExtremelyLenient = beExtremelyLenient
_filename = os.path.join(self.templateDir, self.template)
self._cache = CachedFile(_filename, self._reallyLoad)
def _reallyLoad(self, path, ctx):
doc = microdom.parse(path, beExtremelyLenient=self.beExtremelyLenient)
doc = flat.precompile(doc, ctx)
if self.pattern is not None:
doc = inevow.IQ(doc).onePattern(self.pattern)
return doc
def load(self, ctx=None, preprocessors=()):
assert not preprocessors, "preprocessors not supported by htmlfile"
return self._cache.load(ctx)
class CachedFileTests(TestCase):
def setUp(self):
self.testFile = self.mktemp()
file(self.testFile, 'w').close()
counter = count()
self.cache = CachedFile(self.testFile, lambda path: next(counter))
def test_cache(self):
"""
Test that loading a file twice returns the cached version the second
time.
"""
o1 = self.cache.load()
o2 = self.cache.load()
self.assertEqual(o1, o2)
def test_cacheModifiedTime(self):
"""
Test that loading a cached file with a different mtime loads the file
again.
"""
mtime = getmtime(self.testFile)
o = self.cache.load()
# sanity check
self.assertEqual(o, 0)
utime(self.testFile, (mtime + 100, mtime + 100))
o = self.cache.load()
self.assertEqual(o, 1)
utime(self.testFile, (mtime, mtime))
o = self.cache.load()
self.assertEqual(o, 2)
def test_cacheInvalidate(self):
"""
Test that calling invalidate really invalidates the cache.
"""
self.assertEqual(self.cache.load(), 0)
self.cache.invalidate()
self.assertEqual(self.cache.load(), 1)
def test_loadArgs(self):
"""
Test that additional arguments are correctly passed through to the
loader.
"""
marker = object()
def _loadMe(path, otherArg, otherKwarg):
self.assertIdentical(otherArg, marker)
self.assertIdentical(otherKwarg, marker)
CachedFile(self.testFile, _loadMe).load(marker, otherKwarg=marker)
def test_loaderException(self):
"""
Test that an exception raised from the loader does not break the
L{CachedFile}.
"""
counter = count()
def _loadMe(path, crashMe=False):
if crashMe:
raise Exception('It is an exception!')
return next(counter)
cf = CachedFile(self.testFile, _loadMe)
# Can we still load after the first attempt raises an exception?
self.assertRaises(Exception, cf.load, True)
self.assertEqual(cf.load(), 0)
# Cache should be valid now, so a broken loader shouldn't matter
self.assertEqual(cf.load(True), 0)
# A second broken load
cf.invalidate()
self.assertRaises(Exception, cf.load, True)
self.assertEqual(cf.load(), 1)
class CachedFileTests(TestCase):
def setUp(self):
self.testFile = self.mktemp()
file(self.testFile, 'w').close()
counter = count()
self.cache = CachedFile(self.testFile, lambda path: next(counter))
def test_cache(self):
"""
Test that loading a file twice returns the cached version the second
time.
"""
o1 = self.cache.load()
o2 = self.cache.load()
self.assertEqual(o1, o2)
def test_cacheModifiedTime(self):
"""
Test that loading a cached file with a different mtime loads the file
again.
"""
mtime = getmtime(self.testFile)
o = self.cache.load()
# sanity check
self.assertEqual(o, 0)
utime(self.testFile, (mtime + 100, mtime + 100))
o = self.cache.load()
self.assertEqual(o, 1)
utime(self.testFile, (mtime, mtime))
o = self.cache.load()
self.assertEqual(o, 2)
def test_cacheInvalidate(self):
"""
Test that calling invalidate really invalidates the cache.
"""
self.assertEqual(self.cache.load(), 0)
self.cache.invalidate()
self.assertEqual(self.cache.load(), 1)
def test_loadArgs(self):
"""
Test that additional arguments are correctly passed through to the
loader.
"""
marker = object()
def _loadMe(path, otherArg, otherKwarg):
self.assertIdentical(otherArg, marker)
self.assertIdentical(otherKwarg, marker)
CachedFile(self.testFile, _loadMe).load(marker, otherKwarg=marker)
def test_loaderException(self):
"""
Test that an exception raised from the loader does not break the
L{CachedFile}.
"""
counter = count()
def _loadMe(path, crashMe=False):
if crashMe:
raise Exception('It is an exception!')
return next(counter)
cf = CachedFile(self.testFile, _loadMe)
# Can we still load after the first attempt raises an exception?
self.assertRaises(Exception, cf.load, True)
self.assertEqual(cf.load(), 0)
# Cache should be valid now, so a broken loader shouldn't matter
self.assertEqual(cf.load(True), 0)
# A second broken load
cf.invalidate()
self.assertRaises(Exception, cf.load, True)
self.assertEqual(cf.load(), 1)