Remove MySQL from default local development setup

https://3.basecamp.com/2914079/buckets/37331921/chats/9301300227@9334968661

README.md

@@ -35,14 +35,15 @@ The full continuous integration tests can be run with:
 
 ### Database configuration
 
-Fizzy supports SQLite (default, recommended for most scenarios) and MySQL. You can switch adapters with the `DATABASE_ADAPTER` environment variable.
+Fizzy works on SQLite by default and supports MySQL too. You can switch adapters with the `DATABASE_ADAPTER` environment variable. For example, to develop locally against MySQL:
 
 ```sh
-DATABASE_ADAPTER=mysql bin/rails
-DATABASE_ADAPTER=mysql bin/test
-bin/ci # Runs tests against both SQLite and MySQL
+DATABASE_ADAPTER=mysql bin/setup --reset
+DATABASE_ADAPTER=mysql bin/ci
 ```
 
+The remote CI pipeline will run tests against both SQLite and MySQL.
+
 ### Outbound Emails
 
 You can view email previews at http://fizzy.localhost:3006/rails/mailers.

bin/setup

@@ -59,30 +59,6 @@ needs_seeding() {
 }
 
 
-setup_database() {
-  local adapter="$1"
-  local reset="$2"
-  local label="${adapter:+ ($adapter)}"
-  local env_cmd="${adapter:+env DATABASE_ADAPTER=$adapter}"
-
-  # When setting up sqlite in SAAS mode, we need to disable SAAS so that
-  # database.yml will use database.sqlite.yml instead of the fizzy-saas config.
-  # We also unset BUNDLE_GEMFILE so the standard Gemfile is used (without fizzy-saas).
-  if [ -n "$SAAS" ] && [ "$adapter" = "sqlite" ]; then
-    env_cmd="env DATABASE_ADAPTER=$adapter SAAS=false BUNDLE_GEMFILE="
-  fi
-
-  if [ "$reset" = "true" ]; then
-    step "Resetting the database$label" $env_cmd rails db:reset
-  else
-    step "Preparing the database$label" $env_cmd rails db:prepare
-
-    if needs_seeding; then
-      step "Seeding the database$label" $env_cmd rails db:seed
-    fi
-  fi
-}
-
 echo
 gum style --foreground 153 "   ˚ ∘             ∘ ˚   "
 gum style --foreground 111 --bold "  ∘˚˳°∘°  𝒻𝒾𝓏𝓏𝓎  °∘°˳˚∘  "
@@ -108,34 +84,33 @@ if [ -n "$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)"
-      '
+  if [ "$DATABASE_ADAPTER" = "mysql" ]; then
+    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
 fi
 
-reset_flag=""
-[[ $* == *--reset* ]] && reset_flag="true"
-
-if [ -n "$SAAS" ]; then
-  for adapter in saas sqlite; do
-    setup_database "$adapter" "$reset_flag"
-  done
+if [[ $* == *--reset* ]]; then
+  step "Resetting the database" rails db:reset
 else
-  for adapter in sqlite mysql; do
-    setup_database "$adapter" "$reset_flag"
-  done
+  step "Preparing the database" rails db:prepare
+
+  if needs_seeding; then
+    step "Seeding the database" rails db:seed
+  fi
 fi
 
 step "Cleaning up logs and tempfiles" rails log:clear tmp:clear

config/ci.rb

@@ -19,13 +19,9 @@ CI.run do
   if Fizzy.saas?
     step "Tests: SaaS",          "#{SAAS_ENV} bin/rails test"
     step "Tests: SaaS System",   "#{SAAS_ENV} #{SYSTEM_TEST_ENV} bin/rails test:system"
-    step "Tests: SQLite",        "#{OSS_ENV} DATABASE_ADAPTER=sqlite bin/rails test"
-    step "Tests: SQLite System", "#{OSS_ENV} DATABASE_ADAPTER=sqlite #{SYSTEM_TEST_ENV} bin/rails test:system"
   else
-    step "Tests: MySQL",         "#{OSS_ENV} DATABASE_ADAPTER=mysql bin/rails test"
-    step "Tests: MySQL System",  "#{OSS_ENV} DATABASE_ADAPTER=mysql #{SYSTEM_TEST_ENV} bin/rails test:system"
-    step "Tests: SQLite",        "#{OSS_ENV} DATABASE_ADAPTER=sqlite bin/rails test"
-    step "Tests: SQLite System", "#{OSS_ENV} DATABASE_ADAPTER=sqlite #{SYSTEM_TEST_ENV} bin/rails test:system"
+    step "Tests: SQLite",        "#{OSS_ENV} bin/rails test"
+    step "Tests: SQLite System", "#{OSS_ENV} #{SYSTEM_TEST_ENV} bin/rails test:system"
   end
 
   if success?