Add check to make sure rbs files are up to date

Author: marcoroth

.github/workflows/build.yml

@@ -40,6 +40,9 @@ jobs:
       - name: Steep
         run: bundle exec steep check
 
+      - name: RBS Inline
+        run: bundle exec rake rbs_inline
+
       # - name: Sorbet
       #   run: bundle exec srb tc
 

Rakefile

@@ -182,7 +182,21 @@ namespace :parse do
 end
 
 task :rbs_inline do
-  sh "bundle exec rbs-inline --opt-out --output=sig/ lib/"
+  require "open3"
+
+  _stdout, stderr, status = Open3.capture3("bundle exec rbs-inline --opt-out --output=sig/ lib/")
+
+  if ENV["CI"]
+    if stderr.strip == "🎉 Generated 0 RBS files under sig/"
+      puts "RBS files in sig/ are up to date"
+      exit status.exitstatus
+    else
+      puts "RBS files in sig/ are not up to date"
+      exit 1
+    end
+  else
+    exit status.exitstatus
+  end
 end
 
 task default: [:templates, :make, :compile, :test]