Save hash object

ugit/data.py

@@ -1,7 +1,17 @@
 from pathlib import Path
 
+import hashlib
+
 GIT_DIR = ".ugit"
 
 
 def init():
     Path.mkdir(GIT_DIR)
+    Path.mkdir(f"{GIT_DIR}/objects")
+
+
+def hash_object(data):
+    oid = hashlib.sha1(data).hexdigest()
+    with open(f"{GIT_DIR}/objects/{oid}", "wb") as out:
+        out.write(data)
+    return oid