diff --git a/GlowstoneBlock.py b/GlowstoneBlock.py
index 5a6fd8f..044ccd4 100644
--- a/GlowstoneBlock.py
+++ b/GlowstoneBlock.py
@@ -1,6 +1,7 @@
 import zipfile
 import json
 import os
+import sys
 
 
 def get_mod_info(target_file):
@@ -15,9 +16,11 @@ def get_modpack_info(target_dir):
                 yield get_mod_info(f.path)
 
 
-def main():
-    pass
+def main(directory='.'):
+    modpack_info = list(get_modpack_info(directory))
+    print(json.dumps(modpack_info, indent=2))
 
 
 if __name__ == "__main__":
-    main()
+    args = {arg.lower(): val for arg, val in (a[2:].split('=') for a in sys.argv if '--' in a.lower())}
+    main(args.get('modpack_path', '.'))