Create benchmark workflow

Run a benchmark as part of our CI to ensure new code does not degrade performance.

Author: stefannibrasil

.github/workflows/bench.yml

@@ -0,0 +1,26 @@
+name: Bench
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    name: Benchmarks
+    steps:
+    - uses: actions/checkout@v6
+    - uses: ruby/setup-ruby@v1
+      with:
+        ruby-version: '3.4'
+    - name: Install dependencies
+      run: bundle install
+
+    - name: Generators benchmark
+      run: RUBYOPT="-W0" bundle exec ruby benchmark/generators.rb
+    - name: Load benchmark
+      run: RUBYOPT="-W0" bundle exec ruby benchmark/load.rb
+    - name: YML vs JSON benchmark
+      run: RUBYOPT="-W0" bundle exec ruby benchmark/load_yml_vs_json.rb

benchmark/load.rb

@@ -1,10 +1,10 @@
 # frozen_string_literal: true
 
 require 'benchmark/ips'
-require 'benchmark'
 
 if defined?(Faker)
-  raise 'faker is defined before bench'
+  puts 'faker is defined before running benchmark, undefining it'
+  Object.send(:remove_const, :Faker)
 end
 
 path = File.expand_path("#{File.dirname(__FILE__)}/load_faker.rb")

benchmark/load_faker.rb

@@ -1,7 +1,3 @@
 # frozen_string_literal: true
 
-if defined?(Faker)
-  raise 'faker is already defined...'
-end
-
 load(File.expand_path("#{File.dirname(__FILE__)}/../lib/faker.rb"))