Add the registry code.

storage/local.py

@@ -0,0 +1,82 @@
+
+import os
+import shutil
+
+from . import Storage
+
+
+class LocalStorage(Storage):
+
+    def __init__(self, storage_path):
+        self._root_path = storage_path
+
+    def _init_path(self, path=None, create=False):
+        path = os.path.join(self._root_path, path) if path else self._root_path
+        if create is True:
+            dirname = os.path.dirname(path)
+            if not os.path.exists(dirname):
+                os.makedirs(dirname)
+        return path
+
+    def get_content(self, path):
+        path = self._init_path(path)
+        with open(path, mode='r') as f:
+            return f.read()
+
+    def put_content(self, path, content):
+        path = self._init_path(path, create=True)
+        with open(path, mode='w') as f:
+            f.write(content)
+        return path
+
+    def stream_read(self, path):
+        path = self._init_path(path)
+        with open(path, mode='rb') as f:
+            while True:
+                buf = f.read(self.buffer_size)
+                if not buf:
+                    break
+                yield buf
+
+    def stream_write(self, path, fp):
+        # Size is mandatory
+        path = self._init_path(path, create=True)
+        with open(path, mode='wb') as f:
+            while True:
+                try:
+                    buf = fp.read(self.buffer_size)
+                    if not buf:
+                        break
+                    f.write(buf)
+                except IOError:
+                    break
+
+    def list_directory(self, path=None):
+        path = self._init_path(path)
+        prefix = path[len(self._root_path) + 1:] + '/'
+        exists = False
+        for d in os.listdir(path):
+            exists = True
+            yield prefix + d
+        if exists is False:
+            # Raises OSError even when the directory is empty
+            # (to be consistent with S3)
+            raise OSError('No such directory: \'{0}\''.format(path))
+
+    def exists(self, path):
+        path = self._init_path(path)
+        return os.path.exists(path)
+
+    def remove(self, path):
+        path = self._init_path(path)
+        if os.path.isdir(path):
+            shutil.rmtree(path)
+            return
+        try:
+            os.remove(path)
+        except OSError:
+            pass
+
+    def get_size(self, path):
+        path = self._init_path(path)
+        return os.path.getsize(path)