diff --git a/vimtabdiff.py b/vimtabdiff.py
index 85a4116..08b0c63 100755
--- a/vimtabdiff.py
+++ b/vimtabdiff.py
@@ -1,11 +1,38 @@
 #!/usr/bin/python3
 
 import os,sys
+import argparse
+import pathlib
+from pathlib import Path
+
+def parse_args():
+    parser = argparse.ArgumentParser(description="Show diff in vim tab pages")
+    parser.add_argument("pathA")
+    parser.add_argument("pathB")
+    return parser.parse_args()
+
+def get_dir_info(dirname: Path):
+    if not dirname:
+        return [],[]
+    dirs, files = [], []
+    for p in dirname.iterdir():
+        if p.is_dir():
+            dirs.append(p)
+        else:
+            files.append(p)
+    return dirs, files
+
+def get_file_pairs(a, b):
+    aDirs, aFiles = get_dir_info(a)
+    bDirs, bFiles = get_dir_info(b)
+    pass
 
 def main():
-    local, remote = sys.argv[1:]
+    dirs, files = get_dir_info(Path('.'))
+    print(f"{dirs=} {files=}")
+    args = parse_args()
     print("Helloworld")
-    print(f"{local=} {remote=}")
+    print(f"{args.pathA=} {args.pathB=}")
 
 if __name__ == '__main__':
     main()