move file based properties out of core

Signed-off-by: Steven Armstrong <steven@icarus.ethz.ch>

lib/cdist/core/property.py

@@ -1,214 +0,0 @@
-# -*- coding: utf-8 -*-
-#
-# 2010-2011 Steven Armstrong (steven-cdist at armstrong.cc)
-#
-# This file is part of cdist.
-#
-# cdist is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# cdist is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with cdist. If not, see <http://www.gnu.org/licenses/>.
-#
-#
-
-import os
-import collections
-
-import cdist
-
-
-class AbsolutePathRequiredError(cdist.Error):
-    def __init__(self, path):
-        self.path = path
-
-    def __str__(self):
-        return 'Absolute path required, got: %s' % self.path
-
-
-class FileList(collections.MutableSequence):
-    """A list that stores it's state in a file.
-
-    """
-    def __init__(self, path, initial=None):
-        if not os.path.isabs(path):
-            raise AbsolutePathRequiredError(path)
-        self._path = path
-        if initial:
-            # delete existing file
-            os.unlink(self._path)
-            for i in initial:
-                self.append(i)
-
-    def __read(self):
-        lines = []
-        try:
-            with open(self._path) as fd:
-                for line in fd:
-                    lines.append(line.rstrip('\n'))
-        except EnvironmentError as e:
-            # error ignored
-            pass
-        return lines
-
-    def __write(self, lines):
-        try:
-            with open(self._path, 'w') as fd:
-                for line in lines:
-                    fd.write(str(line) + '\n')
-        except EnvironmentError as e:
-            # error ignored
-            raise
-
-    def __repr__(self):
-        return repr(list(self))
-
-    def __getitem__(self, index):
-        return self.__read()[index]
-        
-    def __setitem__(self, index, value):
-        lines = self.__read()
-        lines[index] = value
-        self.__write(lines)
-
-    def __delitem__(self, index):
-        lines = self.__read()
-        del lines[index]
-        self.__write(lines)
-
-    def __len__(self):
-        lines = self.__read()
-        return len(lines)
-
-    def insert(self, index, value):
-        lines = self.__read()
-        lines.insert(index, value)
-        self.__write(lines)
-
-    def sort(self):
-        lines = sorted(self)
-        self.__write(lines)
-
-
-class FileListProperty(FileList):
-    # Descriptor Protocol
-    def __get__(self, obj, objtype=None):
-        if obj is None:
-            return self.__class__
-        return self
-
-    def __set__(self, obj, value):
-        os.unlink(self._path)
-        for item in value:
-            self.append(item)
-
-    def __delete__(self, obj):
-        raise AttributeError("can't delete attribute")
-
-
-class DirectoryDict(collections.MutableMapping):
-    """A dict that stores it's state in a directory.
-
-    """
-    def __init__(self, path, dict=None, **kwargs):
-        if not os.path.isabs(path):
-            raise AbsolutePathRequiredError(path)
-        self._path = path
-        if dict is not None:
-            self.update(dict)
-        if len(kwargs):
-            self.update(kwargs)
-
-    def __repr__(self):
-        return repr(dict(self))
-
-    def __getitem__(self, key):
-        try:
-            with open(os.path.join(self._path, key), "r") as fd:
-                return fd.read().rstrip('\n')
-        except EnvironmentError:
-            raise KeyError(key)
-
-    def __setitem__(self, key, value):
-        with open(os.path.join(self._path, key), "w") as fd:
-            fd.write(str(value))        
-
-    def __delitem__(self, key):
-        os.remove(os.path.join(self._path, key))
-
-    def __iter__(self):
-        return iter(os.listdir(self._path))
-
-    def __len__(self):
-        return len(os.listdir(self._path))
-
-
-class DirectoryDictProperty(DirectoryDict):
-    # Descriptor Protocol
-    def __get__(self, obj, objtype=None):
-        if obj is None:
-            return self.__class__
-        return self
-
-    def __set__(self, obj, value):
-        for name in self.keys():
-            del self[name]
-        if value is not None:
-            self.update(value)
-
-    def __delete__(self, obj):
-        raise AttributeError("can't delete attribute")
-
-
-class FileBooleanProperty(object):
-    def __init__(self, path):
-        """
-        :param path: string or callable
-
-        Usage:
-
-        class Foo(object):
-            changed = FileBoolean(lambda obj: os.path.join(obj.absolute_path, 'changed'))
-            other_boolean = FileBoolean('/tmp/other_boolean')
-
-            def __init__(self):
-                self.absolute_path = '/tmp/foo_boolean'
-
-        """
-        self._path = path
-
-    def _get_path(self, *args, **kwargs):
-        path = self._path
-        if callable(path):
-            return path(*args, **kwargs)
-        if not os.path.isabs(path):
-            raise AbsolutePathRequiredError(path)
-        return path
-
-    # Descriptor Protocol
-    def __get__(self, obj, objtype=None):
-        if obj is None:
-            return self.__class__
-        path = self._get_path(obj)
-        return os.path.isfile(path)
-
-    def __set__(self, obj, value):
-        path = self._get_path(obj)
-        if value:
-            open(path, "w").close()
-        else:
-            try:
-                os.remove(path)
-            except EnvironmentError:
-                # ignore
-                pass
-
-    def __delete__(self, obj):
-        raise AttributeError("can't delete attribute")