acmens.py: Update arguments to acmens.py

Now CSR path needs to be given via the --csr switch.

2 files changed, 7 insertions, 3 deletions

diff --git a/README.md b/README.md
index 6be74ce..8f59d6d 100644
--- a/README.md
+++ b/README.md
@@ -53,7 +53,7 @@ account private key, email address, and the domain CSR. The paths can be
 relative or absolute.
 
 ```sh
-python3 acmens.py --account-key user.key --email mail@example.com domain.csr > signed.crt
+python3 acmens.py --account-key user.key --email mail@example.com --csr domain.csr > signed.crt
 ```
 
 When you run the script, it will:
diff --git a/acmens.py b/acmens.py
index c2ea739..e371432 100644
--- a/acmens.py
+++ b/acmens.py
@@ -247,9 +247,13 @@ $ python3 acmens.py --account-key user.key --email user@example.com domain.csr >
 """)
     parser.add_argument("-k", "--account-key", required=True, help="path to your Let's Encrypt account private key")
     parser.add_argument("-e", "--email", default=None, help="contact email, default is webmaster@<shortest_domain>")
-    parser.add_argument("csr_path", help="path to your certificate signing request")
+    parser.add_argument("--csr", help="path to your certificate signing request")
 
     args = parser.parse_args()
-    signed_crt = sign_csr(args.account_key, args.csr_path, email=args.email)
+    if args.csr is None:
+        sys.stderr.write('Error: Path to CSR required\n')
+        sys.exit(1)
+
+    signed_crt = sign_csr(args.account_key, args.csr, email=args.email)
     sys.stdout.write(signed_crt)