Start working on the server

server/utils.py

@@ -0,0 +1,30 @@
+import os
+
+ROOT = os.path.dirname(__file__)
+METADATA_FILE = os.path.join(ROOT, 'metadata.json')
+DATA_ROOT = os.path.join(os.path.dirname(__file__), 'data')
+
+def mkdir(path):
+    if not os.path.exists(path):
+        os.makedirs(path)
+
+def ls(path):
+    try:
+        return os.listdir(path)
+    except:
+        return []
+
+def read(path):
+    if not os.path.exists(path):
+        return None
+    try:
+        with open(path) as f:
+            return f.read()
+    except:
+        return None
+
+def write(path, data):
+    if not os.path.exists(path):
+        with open(path, mode='a'): pass
+    with open(path, 'w') as f:
+        f.write(data)