Freeze strings by default

Author: northeastprince

.github/workflows/ci.yml

@@ -38,6 +38,8 @@ jobs:
         run: docker compose up --detach
       - name: Run tests
         run: bin/rails test; bin/rails test:system
+        env:
+          RUBYOPT: "--enable-frozen-string-literal"
       - name: Keep screenshots from failed system tests
         uses: actions/upload-artifact@v6
         if: failure()

Dockerfile

@@ -5,7 +5,8 @@ WORKDIR /hackathons
 ENV RAILS_ENV="production" \
     BUNDLE_DEPLOYMENT="1" \
     BUNDLE_PATH="/usr/local/bundle" \
-    BUNDLE_WITHOUT="development"
+    BUNDLE_WITHOUT="development" \
+    RUBYOPT="--enable-frozen-string-literal"
 
 
 FROM base AS build

app/models/hackathon.rb

@@ -1,4 +1,6 @@
 class Hackathon < ApplicationRecord
+  CS = "rr".succ!
+
   include Broadcasting
   include Eventable
   include Taggable