From 053604c0464f5d58a5228ad9c4f506671ef9ff28 Mon Sep 17 00:00:00 2001
From: LucasLvy <lucaslevy10@gmail.com>
Date: Thu, 4 Aug 2022 12:06:56 +0200
Subject: [PATCH] feat(cli): file is optional

---
 README.md              | 2 +-
 amarna/command_line.py | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index a60cf15..fbbd7a2 100644
--- a/README.md
+++ b/README.md
@@ -133,7 +133,7 @@ Examples of these are:
 ### Rule names
 Obtain the names of the currently implemented rules with:
 ```bash
- amarna --show-rules .
+ amarna --show-rules
 ```
 
 ### Rule allowlist
diff --git a/amarna/command_line.py b/amarna/command_line.py
index 8bf04a7..3920c13 100644
--- a/amarna/command_line.py
+++ b/amarna/command_line.py
@@ -96,6 +96,7 @@ def main() -> int:
         metavar="-f",
         type=str,
         help="the name of the .cairo file or directory with .cairo files to analyze",
+        nargs="?"
     )
 
     parser.add_argument("-p", "--print", action="store_true", help="print output")