Merge pull request rails#51749 from Shopify/devcontainer-use-sqlite-feature

SQLite3 feature for dev container

Author: rafaelfranca

railties/lib/rails/generators/devcontainer.rb

@@ -3,6 +3,12 @@
 module Rails
   module Generators
     module Devcontainer
+      DB_FEATURES = {
+        "mysql" => "ghcr.io/rails/devcontainer/features/mysql-client",
+        "postgresql" => "ghcr.io/rails/devcontainer/features/postgres-client",
+        "sqlite3" =>  "ghcr.io/rails/devcontainer/features/sqlite3"
+      }
+
       private
         def devcontainer_dependencies
           return @devcontainer_dependencies if @devcontainer_dependencies
@@ -124,6 +130,7 @@ def db_service_for_devcontainer(database = options[:database])
 
         def db_feature_for_devcontainer(database = options[:database])
           case database
+          when "sqlite3"        then sqlite3_feature
           when "mysql"          then mysql_feature
           when "postgresql"     then postgres_feature
           end
@@ -178,18 +185,19 @@ def db_service_names
         end
 
         def mysql_feature
-          { "ghcr.io/rails/devcontainer/features/mysql-client" => {} }
+          { DB_FEATURES["mysql"] => {} }
         end
 
         def postgres_feature
-          { "ghcr.io/rails/devcontainer/features/postgres-client" => {} }
+          { DB_FEATURES["postgresql"] => {} }
+        end
+
+        def sqlite3_feature
+          { DB_FEATURES["sqlite3"] => {} }
         end
 
         def db_features
-          [
-            "ghcr.io/rails/devcontainer/features/mysql-client",
-            "ghcr.io/rails/devcontainer/features/postgres-client"
-          ]
+          @db_features ||= DB_FEATURES.values
         end
 
         def local_rails_mount

railties/test/generators/app_generator_test.rb

@@ -1287,6 +1287,7 @@ def test_devcontainer
       assert_equal "selenium", content["containerEnv"]["SELENIUM_HOST"]
       assert_equal({}, content["features"]["ghcr.io/rails/devcontainer/features/activestorage"])
       assert_equal({}, content["features"]["ghcr.io/devcontainers/features/github-cli:1"])
+      assert_equal({}, content["features"]["ghcr.io/rails/devcontainer/features/sqlite3"])
       assert_includes(content["forwardPorts"], 3000)
       assert_includes(content["forwardPorts"], 6379)
     end

railties/test/generators/db_system_change_generator_test.rb

@@ -52,9 +52,10 @@ class ChangeGeneratorTest < Rails::Generators::TestCase
               assert_match "curl libvips postgresql-client", content
             end
 
-            assert_file(".devcontainer/devcontainer.json") do |content|
-              assert_match(/"DB_HOST": "postgres"/, content)
-              assert_match(/"ghcr.io\/rails\/devcontainer\/features\/postgres-client":/, content)
+            assert_devcontainer_json_file do |content|
+              assert_equal "postgres", content["containerEnv"]["DB_HOST"]
+              assert_includes content["features"].keys, "ghcr.io/rails/devcontainer/features/postgres-client"
+              assert_not_includes content["features"].keys, "ghcr.io/rails/devcontainer/features/sqlite"
             end
 
             assert_compose_file do |compose_config|
@@ -94,9 +95,9 @@ class ChangeGeneratorTest < Rails::Generators::TestCase
               assert_match "curl default-mysql-client libvips", content
             end
 
-            assert_file(".devcontainer/devcontainer.json") do |content|
-              assert_match(/"DB_HOST": "mysql"/, content)
-              assert_match(/"ghcr.io\/rails\/devcontainer\/features\/mysql-client":/, content)
+            assert_devcontainer_json_file do |content|
+              assert_equal "mysql", content["containerEnv"]["DB_HOST"]
+              assert_equal({}, content["features"]["ghcr.io/rails/devcontainer/features/mysql-client"])
             end
 
             assert_compose_file do |compose_config|
@@ -136,8 +137,8 @@ class ChangeGeneratorTest < Rails::Generators::TestCase
               assert_match "curl libsqlite3-0 libvips", content
             end
 
-            assert_file(".devcontainer/devcontainer.json") do |content|
-              assert_no_match(/"DB_HOST"/, content)
+            assert_devcontainer_json_file do |content|
+              assert_not_includes content["containerEnv"].keys, "DB_HOST"
             end
           end
 
@@ -160,8 +161,8 @@ class ChangeGeneratorTest < Rails::Generators::TestCase
               assert_no_match "default-libmysqlclient-dev", content
             end
 
-            assert_file(".devcontainer/devcontainer.json") do |content|
-              assert_match(/"DB_HOST": "mariadb"/, content)
+            assert_devcontainer_json_file do |content|
+              assert_match "mariadb", content["containerEnv"]["DB_HOST"]
             end
 
             assert_compose_file do |compose_config|
@@ -203,9 +204,9 @@ class ChangeGeneratorTest < Rails::Generators::TestCase
             run_generator ["--to", "mysql"]
             run_generator ["--to", "sqlite3", "--force"]
 
-            assert_file(".devcontainer/devcontainer.json") do |content|
-              assert_no_match(/"DB_HOST"/, content)
-              assert_no_match(/"ghcr.io\/rails\/devcontainer\/features\/mysql-client":/, content)
+            assert_devcontainer_json_file do |content|
+              assert_not_includes content["containerEnv"].keys, "DB_HOST"
+              assert_not_includes content["features"].keys, "ghcr.io\/rails\/devcontainer\/features\/mysql-client"
             end
 
             assert_compose_file do |compose_config|