def __init__(self, output_path, all_configs=None):
# We want to make sure to construct only one copy of each config, even
# if configs refer to each other or multiple configs refer to a shared
# config. So, all_configs maps names to configs that we have already
# constructed.
if all_configs is None:
# Note that if we just make all_configs default to {} in the method
# signature, then Python will create a single empty map to use as the
# default value for all calls rather than create a new one every call.
# Since we modify all_configs during this method, we would be modifying
# the shared default value, which would be bad. If you don't understand
# what I mean, try typing the following into the interpreter and then
# calling it several times with no argument:
# def f(l = []):
# l.append("foo")
# return l
# Ouchies.
all_configs = {}
if output_path is None:
all_configs[""] = self
else:
all_configs[output_path] = self
self.name = output_path
self.source_dir = DiskDirectory(".")
if output_path is None:
self.output_dir = self.source_dir
else:
self.source_dir.mkdir(output_path)
self.output_dir = DiskDirectory(output_path)
self.mem_dir = VirtualDirectory()
self.env_dir = VirtualDirectory()
_restore_pickle(self.mem_dir, self.output_dir, "mem.pickle")
_restore_pickle(self.env_dir, self.output_dir, "env.pickle")
self.alt_configs = {}
self.__make_root_dir()
self.alt_configs["host"] = self
if self.env_dir.exists("$mappings"):
mappings = self.env_dir.read("$mappings").split(":")
for mapping in mappings:
if mapping == "":
continue
alias, name = mapping.split("=", 1)
if name in all_configs:
self.alt_configs[alias] = all_configs[name]
else:
if name == "":
name = None
self.alt_configs[alias] = Configuration(name, all_configs)
def testGlob(self):
# Must test with disk directory...
tempdir = tempfile.mkdtemp()
try:
disk_dir = DiskDirectory(tempdir)
disk_dir.write("foo.qux", "")
disk_dir.write("bar.qux", "")
disk_dir.write("baz.qux", "")
disk_dir.write("foo.corge", "")
disk_dir.write("bar.corge", "")
disk_dir.write("baz.corge", "")
class PrefixRemovingMapping(MappedDirectory.Mapping):
def __init__(self, prefix, real_dir):
super(PrefixRemovingMapping, self).__init__()
self.__prefix = prefix
self.__real_dir = real_dir
def map(self, filename):
assert filename.startswith(self.__prefix)
return (self.__real_dir, filename[len(self.__prefix):])
dir = MappedDirectory(PrefixRemovingMapping("a/", disk_dir))
self.assertEquals(set(["a/foo.qux"]),
set(dir.expand_glob("a/foo.qux")))
self.assertEquals(set(["a/foo.qux", "a/bar.qux", "a/baz.qux"]),
set(dir.expand_glob("a/*.qux")))
self.assertEquals(
set(["a/foo.corge", "a/bar.corge", "a/baz.corge"]),
set(dir.expand_glob("a/*.corge")))
self.assertEquals(set(["a/foo.qux", "a/foo.corge"]),
set(dir.expand_glob("a/foo.*")))
self.assertEquals(
set([
"a/foo.qux", "a/bar.qux", "a/baz.qux", "a/foo.corge",
"a/bar.corge", "a/baz.corge"
]), set(dir.expand_glob("a/*")))
self.assertEquals(set([]), set(dir.expand_glob("a/grault")))
finally:
shutil.rmtree(tempdir)
def setUp(self):
self.tempdir = tempfile.mkdtemp()
self.dir = DiskDirectory(self.tempdir)
super(DiskDirectoryTest, self).setUp()
