Restore local CI, sensible setup for open source users

Gemfile.saas.lock

@@ -1,6 +1,6 @@
 GIT
   remote: https://github.com/basecamp/fizzy-saas
-  revision: f251028405bd0ba586fe836d1a8c56428b8abff0
+  revision: 720bedaf37faf8dff18c9586e1fa7031bad1d2a9
   specs:
     fizzy-saas (0.1.0)
       queenbee

bin/setup

@@ -82,16 +82,46 @@ step "Installing RubyGems" bundle install
 if [ -n "$SAAS" ]; then
   saas_setup=$(bundle show fizzy-saas)/bin/setup
   source "$saas_setup"
+else
+  if ! nc -z localhost 3306 2>/dev/null; then
+    if docker ps -aq -f name=fizzy-mysql | grep -q .; then
+      step "Starting MySQL" docker start fizzy-mysql
+    else
+      step "Setting up MySQL" bash -c '
+        docker pull mysql:8.4
+        docker run -d \
+          --name fizzy-mysql \
+          -e MYSQL_ALLOW_EMPTY_PASSWORD=yes \
+          -p 3306:3306 \
+          mysql:8.4
+        echo "MySQL is starting… (it may take a few seconds)"
+      '
+    fi
+  fi
 fi
 
-if [[ $* == *--reset* ]]; then
-  step "Resetting the database" rails db:reset
-else
-  step "Preparing the database" rails db:prepare
+if [ -n "$SAAS" ]; then
+  if [[ $* == *--reset* ]]; then
+    step "Resetting the database" rails db:reset
+  else
+    step "Preparing the database" rails db:prepare
 
-  if needs_seeding; then
-    step "Seeding the database" rails db:seed
+    if needs_seeding; then
+      step "Seeding the database" rails db:seed
+    fi
   fi
+else
+  for adapter in sqlite mysql; do
+    if [[ $* == *--reset* ]]; then
+      step "Resetting the database ($adapter)" env DATABASE_ADAPTER=$adapter rails db:reset
+    else
+      step "Preparing the database ($adapter)" env DATABASE_ADAPTER=$adapter rails db:prepare
+
+      if needs_seeding; then
+        step "Seeding the database ($adapter)" env DATABASE_ADAPTER=$adapter rails db:seed
+      fi
+    fi
+  done
 fi
 
 step "Cleaning up logs and tempfiles" rails log:clear tmp:clear

config/ci.rb

@@ -7,12 +7,17 @@ CI.run do
 
   step "Style: Ruby", "bin/rubocop"
 
-  step "Security: Gem audit",       "bin/bundler-audit check --update"
+  step "Security: Gem audit", "bin/bundler-audit check --update"
   step "Security: Importmap audit", "bin/importmap audit"
-  step "Security: Brakeman audit",  "bin/brakeman --quiet --no-pager --exit-on-warn --exit-on-error"
+  step "Security: Brakeman audit", "bin/brakeman --quiet --no-pager --exit-on-warn --exit-on-error"
+
+  if Fizzy.saas?
+    step "Tests: SaaS", "SAAS=true BUNDLE_GEMFILE=Gemfile.saas bin/rails test:all"
+  else
+    step "Tests: MySQL", "SAAS=false BUNDLE_GEMFILE=Gemfile DATABASE_ADAPTER=mysql bin/rails test:all"
+    step "Tests: SQLite", "SAAS=false BUNDLE_GEMFILE=Gemfile DATABASE_ADAPTER=sqlite bin/rails test:all"
+  end
 
-  step "Tests: Open source",        "bin/rails test"
-  step "Tests: System",             "bin/rails test:system"
 
   if success?
     step "Signoff: All systems go. Ready for merge and deploy.", "gh signoff"

lib/fizzy.rb

@@ -2,7 +2,7 @@ module Fizzy
   class << self
     def saas?
       return @saas if defined?(@saas)
-      @saas = !!(ENV["SAAS"] || File.exist?(File.expand_path("../tmp/saas.txt", __dir__)))
+      @saas = !!(((ENV["SAAS"] || File.exist?(File.expand_path("../tmp/saas.txt", __dir__))) && ENV["SAAS"] != "false"))
     end
 
     def db_adapter