From b4292969673878fad392fc6ae1543fa82b017117 Mon Sep 17 00:00:00 2001
From: Sven van Heugten <sven@memcmp.org>
Date: Tue, 12 May 2026 07:01:45 +0200
Subject: [PATCH] Add usage message

---
 Mutannot/Program.fs | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/Mutannot/Program.fs b/Mutannot/Program.fs
index e7195fc..1de7c20 100644
--- a/Mutannot/Program.fs
+++ b/Mutannot/Program.fs
@@ -2,6 +2,10 @@ open Fli
 
 [<EntryPoint>]
 let main argv =
+    if argv.Length <> 1 then
+        eprintfn "Usage: mutannot <path/to/project.csproj|fsproj>"
+        exit 1
+
     let gitState =
         cli {
             Exec "git"
@@ -12,6 +16,6 @@ let main argv =
 
     if gitState.Text <> None then
         eprintfn "Uncommitted changes. Refusing to run."
-        exit 1
+        exit 2
 
     0