def open_file(self, path, mode):
path = self.realpath(path=path)
parent = path.parent()
contents = self._tree.get(parent)
if contents is None:
raise exceptions.FileNotFound(path)
if mode == "w" or mode == "wb":
file = _BytesIOIsTerrible()
self._tree = self._tree.set(parent, contents.set(path, file))
return file
file = contents.get(path)
if mode == "a" or mode == "ab":
if file is None:
combined = _BytesIOIsTerrible()
else:
combined = _BytesIOIsTerrible()
combined.write(file._hereismyvalue)
self._tree = self._tree.set(parent, contents.set(path, combined))
return combined
elif file is None:
raise exceptions.FileNotFound(path)
else:
return BytesIO(file._hereismyvalue)
def remove_file(self, path):
parent = path.parent()
contents = self._tree.get(parent)
if contents is None:
raise exceptions.FileNotFound(path)
if path not in contents:
raise exceptions.FileNotFound(path)
self._tree = self._tree.set(parent, contents.remove(path))
def _tree_with(self, path):
parent = path.parent()
if not self.exists(path=parent):
raise exceptions.FileNotFound(parent)
elif not self.is_dir(path=parent):
raise exceptions.NotADirectory(parent)
return self._tree.set(parent, self._tree[parent].set(path, None))
def remove(self, path):
if self.is_link(path=path):
self._links = self._links.remove(path)
elif path not in self._tree:
raise exceptions.FileNotFound(path)
else:
self._tree = self._tree.remove(path)
def _remove_file(fs, path):
try:
os.remove(str(path))
except (IOError, OSError) as error:
if error.errno == exceptions.FileNotFound.errno:
raise exceptions.FileNotFound(path)
raise
def _remove_empty_directory(fs, path):
try:
os.rmdir(str(path))
except (IOError, OSError) as error:
if error.errno == exceptions.DirectoryNotEmpty.errno:
raise exceptions.DirectoryNotEmpty(path)
elif error.errno == exceptions.FileNotFound.errno:
raise exceptions.FileNotFound(path)
raise
def _list_directory(fs, path):
try:
return os.listdir(str(path))
except (IOError, OSError) as error:
if error.errno == exceptions.FileNotFound.errno:
raise exceptions.FileNotFound(path)
elif error.errno == exceptions.NotADirectory.errno:
raise exceptions.NotADirectory(path)
raise
def _create_directory(fs, path):
try:
os.mkdir(str(path))
except (IOError, OSError) as error:
if error.errno == exceptions.FileNotFound.errno:
raise exceptions.FileNotFound(path.parent())
elif error.errno == exceptions.FileExists.errno:
raise exceptions.FileExists(path)
raise
def open_file(self, path, mode):
if mode.read:
raise exceptions.FileNotFound(path)
else:
file = self._parent[self._name] = _File(
name=self._name,
parent=self._parent,
)
return file.open_file(path=path, mode=mode)
def _open_file(fs, path, mode):
try:
return open(str(path), mode)
except (IOError, OSError) as error:
if error.errno == exceptions.FileNotFound.errno:
raise exceptions.FileNotFound(path)
elif error.errno == exceptions.SymbolicLoop.errno:
raise exceptions.SymbolicLoop(path)
raise
def create_directory(self, path):
if self.exists(path=path):
raise exceptions.FileExists(path)
parent = path.parent()
if not self.exists(path=parent):
raise exceptions.FileNotFound(parent)
self._tree = self._tree.set(path, pmap())
def list_directory(self, path):
if self.is_file(path=path):
raise exceptions.NotADirectory(path)
elif path not in self._tree:
raise exceptions.FileNotFound(path)
# FIXME: Inefficient
return pset(child.basename() for child in self._tree[path]) | pset(
subdirectory.basename() for subdirectory in self._tree
if subdirectory.parent() == path and subdirectory != path)
def _lstat(fs, path):
try:
return os.lstat(str(path))
except (IOError, OSError) as error:
if error.errno == exceptions.FileNotFound.errno:
raise exceptions.FileNotFound(path)
elif error.errno == exceptions.NotADirectory.errno:
raise exceptions.NotADirectory(path)
elif error.errno == exceptions.SymbolicLoop.errno:
raise exceptions.SymbolicLoop(path)
raise
def _link(fs, source, to):
try:
os.symlink(str(source), str(to))
except (IOError, OSError) as error:
if error.errno == exceptions.FileNotFound.errno:
raise exceptions.FileNotFound(to.parent())
elif error.errno == exceptions.NotADirectory.errno:
raise exceptions.NotADirectory(to.parent())
elif error.errno == exceptions.FileExists.errno:
raise exceptions.FileExists(to)
raise
def create_directory(self, path, with_parents):
if with_parents:
parent = self._parent.create_directory(
path=path,
with_parents=with_parents,
)
directory = parent[self._name].create_directory(
path=path,
with_parents=False,
)
return directory
raise exceptions.FileNotFound(path.parent())
def create_file(self, path):
if self.exists(path=path) or self.is_link(path=path):
raise exceptions.FileExists(path)
path = self.realpath(path=path)
parent = path.parent()
contents = self._tree.get(parent)
if contents is None:
raise exceptions.FileNotFound(path)
file = _BytesIOIsTerrible()
self._tree = self._tree.set(parent, contents.set(path, file))
return file
def _create_file(fs, path):
try:
fd = os.open(str(path), _CREATE_FLAGS)
except (IOError, OSError) as error:
if error.errno == exceptions.FileNotFound.errno:
raise exceptions.FileNotFound(path)
elif error.errno == exceptions.FileExists.errno:
raise exceptions.FileExists(path)
elif error.errno == exceptions.SymbolicLoop.errno:
raise exceptions.SymbolicLoop(path.parent())
raise
return os.fdopen(fd, "w+b")
def _open_file(fs, path, mode):
mode = common._parse_mode(mode)
try:
return io.open(str(path), mode.io_open_string())
except (IOError, OSError) as error:
if error.errno == exceptions.FileNotFound.errno:
raise exceptions.FileNotFound(path)
elif error.errno == exceptions.IsADirectory.errno:
raise exceptions.IsADirectory(path)
elif error.errno == exceptions.NotADirectory.errno:
raise exceptions.NotADirectory(path)
elif error.errno == exceptions.SymbolicLoop.errno:
raise exceptions.SymbolicLoop(path)
raise
def _remove_file(fs, path):
try:
os.remove(str(path))
except (IOError, OSError) as error:
if error.errno == exceptions.FileNotFound.errno:
raise exceptions.FileNotFound(path)
elif error.errno == exceptions.IsADirectory.errno:
raise exceptions.IsADirectory(path)
elif error.errno == exceptions.NotADirectory.errno:
raise exceptions.NotADirectory(path)
elif error.errno == exceptions.PermissionError.errno:
raise exceptions.PermissionError(path)
elif error.errno == exceptions.SymbolicLoop.errno:
raise exceptions.SymbolicLoop(path.parent())
raise
def _readlink(fs, path):
try:
value = os.readlink(str(path))
except (IOError, OSError) as error:
if error.errno == exceptions.FileNotFound.errno:
raise exceptions.FileNotFound(path)
elif error.errno == exceptions.NotADirectory.errno:
raise exceptions.NotADirectory(path)
elif error.errno == exceptions.NotASymlink.errno:
raise exceptions.NotASymlink(path)
elif error.errno == exceptions.SymbolicLoop.errno:
raise exceptions.SymbolicLoop(path)
raise
else:
return Path.from_string(value)
def _create_directory(fs, path, with_parents):
try:
if with_parents:
os.makedirs(str(path))
else:
os.mkdir(str(path))
except (IOError, OSError) as error:
if error.errno == exceptions.FileExists.errno:
raise exceptions.FileExists(path)
elif error.errno == exceptions.FileNotFound.errno:
raise exceptions.FileNotFound(path.parent())
elif error.errno == exceptions.NotADirectory.errno:
raise exceptions.NotADirectory(path.parent())
elif error.errno == exceptions.SymbolicLoop.errno:
raise exceptions.SymbolicLoop(path.parent())
raise
def open_file(self, path, mode):
raise exceptions.FileNotFound(path)
def remove_empty_directory(self, path):
raise exceptions.FileNotFound(path)
def list_directory(self, path):
raise exceptions.FileNotFound(path)
def create_file(self, path):
raise exceptions.FileNotFound(path)
def remove_file(self, path):
raise exceptions.FileNotFound(path)
def stat(self, path):
raise exceptions.FileNotFound(path)
def readlink(self, path):
raise exceptions.FileNotFound(path)
def link(self, source, to, fs, state):
raise exceptions.FileNotFound(to.parent())
