Write-tree write tree objects

ugit/base.py

@@ -4,16 +4,24 @@ from . import data
 
 
 def write_tree(directory="."):
+    entries = []
     with Path.iterdir(directory) as it:
         for entry in it:
             full = f"{directory}/{entry.name}"
             if is_ignored(full):
                 continue
             if entry.is_file(follow_symlinks=False):
+                type_ = "blob"
                 with open(full, "rb") as f:
-                    print(data.hash_object(f.read()), full)
+                    oid = data.hash_object(f.read())
             elif entry.is_dir(follow_symlinks=False):
-                write_tree(full)
+                type_ = "tree"
+                oid = write_tree(full)
+            entries.append((entry.name, oid, type_))
+
+    tree = "".join(f"{type_} {oid} {name}\n" for name, oid, type_ in sorted(entries))
+
+    return data.hash_object(tree.encode(), "tree")
 
 
 def is_ignored(path):

ugit/cli.py

@@ -51,4 +51,4 @@ def cat_file(args):
 
 
 def write_tree(args):
-    base.write_tree()
+    print(base.write_tree())