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-rw-r--r--railties/lib/rails/commands/db/system/change/change_command.rb20
-rw-r--r--railties/lib/rails/generators.rb3
-rw-r--r--railties/lib/rails/generators/app_base.rb34
-rw-r--r--railties/lib/rails/generators/app_name.rb50
-rw-r--r--railties/lib/rails/generators/database.rb57
-rw-r--r--railties/lib/rails/generators/rails/app/app_generator.rb57
-rw-r--r--railties/lib/rails/generators/rails/db/system/change/change_generator.rb55
7 files changed, 188 insertions, 88 deletions
diff --git a/railties/lib/rails/commands/db/system/change/change_command.rb b/railties/lib/rails/commands/db/system/change/change_command.rb
new file mode 100644
index 0000000000..760c229c07
--- /dev/null
+++ b/railties/lib/rails/commands/db/system/change/change_command.rb
@@ -0,0 +1,20 @@
+# frozen_string_literal: true
+
+require "rails/generators"
+require "rails/generators/rails/db/system/change/change_generator"
+
+module Rails
+ module Command
+ module Db
+ module System
+ class ChangeCommand < Base # :nodoc:
+ class_option :to, desc: "The database system to switch to."
+
+ def perform
+ Rails::Generators::Db::System::ChangeGenerator.start
+ end
+ end
+ end
+ end
+ end
+end
diff --git a/railties/lib/rails/generators.rb b/railties/lib/rails/generators.rb
index caf8a33c3c..b835b3f3fd 100644
--- a/railties/lib/rails/generators.rb
+++ b/railties/lib/rails/generators.rb
@@ -23,6 +23,8 @@ module Rails
autoload :ActiveModel, "rails/generators/active_model"
autoload :Base, "rails/generators/base"
autoload :Migration, "rails/generators/migration"
+ autoload :Database, "rails/generators/database"
+ autoload :AppName, "rails/generators/app_name"
autoload :NamedBase, "rails/generators/named_base"
autoload :ResourceHelpers, "rails/generators/resource_helpers"
autoload :TestCase, "rails/generators/test_case"
@@ -218,6 +220,7 @@ module Rails
rails.delete("encryption_key_file")
rails.delete("master_key")
rails.delete("credentials")
+ rails.delete("db:system:change")
hidden_namespaces.each { |n| groups.delete(n.to_s) }
diff --git a/railties/lib/rails/generators/app_base.rb b/railties/lib/rails/generators/app_base.rb
index 8df2b32dd2..8278abcaeb 100644
--- a/railties/lib/rails/generators/app_base.rb
+++ b/railties/lib/rails/generators/app_base.rb
@@ -11,9 +11,8 @@ require "active_support/core_ext/array/extract_options"
module Rails
module Generators
class AppBase < Base # :nodoc:
- DATABASES = %w( mysql postgresql sqlite3 oracle frontbase ibm_db sqlserver )
- JDBC_DATABASES = %w( jdbcmysql jdbcsqlite3 jdbcpostgresql jdbc )
- DATABASES.concat(JDBC_DATABASES)
+ include Database
+ include AppName
attr_accessor :rails_template
add_shebang_option!
@@ -106,7 +105,6 @@ module Rails
@gem_filter = lambda { |gem| true }
@extra_entries = []
super
- convert_database_option_for_jruby
end
private
@@ -306,34 +304,6 @@ module Rails
end
end
- def gem_for_database
- # %w( mysql postgresql sqlite3 oracle frontbase ibm_db sqlserver jdbcmysql jdbcsqlite3 jdbcpostgresql )
- case options[:database]
- when "mysql" then ["mysql2", [">= 0.4.4"]]
- when "postgresql" then ["pg", [">= 0.18", "< 2.0"]]
- when "oracle" then ["activerecord-oracle_enhanced-adapter", nil]
- when "frontbase" then ["ruby-frontbase", nil]
- when "sqlserver" then ["activerecord-sqlserver-adapter", nil]
- when "jdbcmysql" then ["activerecord-jdbcmysql-adapter", nil]
- when "jdbcsqlite3" then ["activerecord-jdbcsqlite3-adapter", nil]
- when "jdbcpostgresql" then ["activerecord-jdbcpostgresql-adapter", nil]
- when "jdbc" then ["activerecord-jdbc-adapter", nil]
- else [options[:database], nil]
- end
- end
-
- def convert_database_option_for_jruby
- if defined?(JRUBY_VERSION)
- opt = options.dup
- case opt[:database]
- when "postgresql" then opt[:database] = "jdbcpostgresql"
- when "mysql" then opt[:database] = "jdbcmysql"
- when "sqlite3" then opt[:database] = "jdbcsqlite3"
- end
- self.options = opt.freeze
- end
- end
-
def assets_gemfile_entry
return [] if options[:skip_sprockets]
diff --git a/railties/lib/rails/generators/app_name.rb b/railties/lib/rails/generators/app_name.rb
new file mode 100644
index 0000000000..c4f71694d8
--- /dev/null
+++ b/railties/lib/rails/generators/app_name.rb
@@ -0,0 +1,50 @@
+# frozen_string_literal: true
+
+module Rails
+ module Generators
+ module AppName # :nodoc:
+ RESERVED_NAMES = %w(application destroy plugin runner test)
+
+ private
+ def app_name
+ @app_name ||= original_app_name.tr("-", "_")
+ end
+
+ def original_app_name
+ @original_app_name ||= (defined_app_const_base? ? defined_app_name : File.basename(destination_root)).tr('\\', "").tr(". ", "_")
+ end
+
+ def defined_app_name
+ defined_app_const_base.underscore
+ end
+
+ def defined_app_const_base
+ Rails.respond_to?(:application) && defined?(Rails::Application) &&
+ Rails.application.is_a?(Rails::Application) && Rails.application.class.name.chomp("::Application")
+ end
+
+ alias :defined_app_const_base? :defined_app_const_base
+
+ def app_const_base
+ @app_const_base ||= defined_app_const_base || app_name.gsub(/\W/, "_").squeeze("_").camelize
+ end
+ alias :camelized :app_const_base
+
+ def app_const
+ @app_const ||= "#{app_const_base}::Application"
+ end
+
+ def valid_const?
+ if /^\d/.match?(app_const)
+ raise Error, "Invalid application name #{original_app_name}. Please give a name which does not start with numbers."
+ elsif RESERVED_NAMES.include?(original_app_name)
+ raise Error, "Invalid application name #{original_app_name}. Please give a " \
+ "name which does not match one of the reserved rails " \
+ "words: #{RESERVED_NAMES.join(", ")}"
+ elsif Object.const_defined?(app_const_base)
+ raise Error, "Invalid application name #{original_app_name}, constant #{app_const_base} is already in use. Please choose another application name."
+ end
+ end
+ end
+ end
+end
diff --git a/railties/lib/rails/generators/database.rb b/railties/lib/rails/generators/database.rb
new file mode 100644
index 0000000000..be3e61bde8
--- /dev/null
+++ b/railties/lib/rails/generators/database.rb
@@ -0,0 +1,57 @@
+# frozen_string_literal: true
+
+module Rails
+ module Generators
+ module Database # :nodoc:
+ JDBC_DATABASES = %w( jdbcmysql jdbcsqlite3 jdbcpostgresql jdbc )
+ DATABASES = %w( mysql postgresql sqlite3 oracle frontbase ibm_db sqlserver ) + JDBC_DATABASES
+
+ def initialize(*)
+ super
+ convert_database_option_for_jruby
+ end
+
+ def gem_for_database(database = options[:database])
+ case database
+ when "mysql" then ["mysql2", [">= 0.4.4"]]
+ when "postgresql" then ["pg", [">= 0.18", "< 2.0"]]
+ when "oracle" then ["activerecord-oracle_enhanced-adapter", nil]
+ when "frontbase" then ["ruby-frontbase", nil]
+ when "sqlserver" then ["activerecord-sqlserver-adapter", nil]
+ when "jdbcmysql" then ["activerecord-jdbcmysql-adapter", nil]
+ when "jdbcsqlite3" then ["activerecord-jdbcsqlite3-adapter", nil]
+ when "jdbcpostgresql" then ["activerecord-jdbcpostgresql-adapter", nil]
+ when "jdbc" then ["activerecord-jdbc-adapter", nil]
+ else [database, nil]
+ end
+ end
+
+ def convert_database_option_for_jruby
+ if defined?(JRUBY_VERSION)
+ opt = options.dup
+ case opt[:database]
+ when "postgresql" then opt[:database] = "jdbcpostgresql"
+ when "mysql" then opt[:database] = "jdbcmysql"
+ when "sqlite3" then opt[:database] = "jdbcsqlite3"
+ end
+ self.options = opt.freeze
+ end
+ end
+
+ private
+ def mysql_socket
+ @mysql_socket ||= [
+ "/tmp/mysql.sock", # default
+ "/var/run/mysqld/mysqld.sock", # debian/gentoo
+ "/var/tmp/mysql.sock", # freebsd
+ "/var/lib/mysql/mysql.sock", # fedora
+ "/opt/local/lib/mysql/mysql.sock", # fedora
+ "/opt/local/var/run/mysqld/mysqld.sock", # mac + darwinports + mysql
+ "/opt/local/var/run/mysql4/mysqld.sock", # mac + darwinports + mysql4
+ "/opt/local/var/run/mysql5/mysqld.sock", # mac + darwinports + mysql5
+ "/opt/lampp/var/mysql/mysql.sock" # xampp for linux
+ ].find { |f| File.exist?(f) } unless Gem.win_platform?
+ end
+ end
+ end
+end
diff --git a/railties/lib/rails/generators/rails/app/app_generator.rb b/railties/lib/rails/generators/rails/app/app_generator.rb
index e777590be8..5f6e817bf6 100644
--- a/railties/lib/rails/generators/rails/app/app_generator.rb
+++ b/railties/lib/rails/generators/rails/app/app_generator.rb
@@ -242,7 +242,6 @@ module Rails
# We need to store the RAILS_DEV_PATH in a constant, otherwise the path
# can change in Ruby 1.8.7 when we FileUtils.cd.
RAILS_DEV_PATH = File.expand_path("../../../../../..", __dir__)
- RESERVED_NAMES = %w[application destroy plugin runner test]
class AppGenerator < AppBase # :nodoc:
WEBPACKS = %w( react vue angular elm stimulus )
@@ -269,7 +268,7 @@ module Rails
super
if !options[:skip_active_record] && !DATABASES.include?(options[:database])
- raise Error, "Invalid value for --database option. Supported for preconfiguration are: #{DATABASES.join(", ")}."
+ raise Error, "Invalid value for --database option. Supported preconfigurations are: #{DATABASES.join(", ")}."
end
# Force sprockets and yarn to be skipped when generating API only apps.
@@ -491,60 +490,6 @@ module Rails
create_file(*args, &block)
end
- def app_name
- @app_name ||= original_app_name.tr("-", "_")
- end
-
- def original_app_name
- @original_app_name ||= (defined_app_const_base? ? defined_app_name : File.basename(destination_root)).tr('\\', "").tr(". ", "_")
- end
-
- def defined_app_name
- defined_app_const_base.underscore
- end
-
- def defined_app_const_base
- Rails.respond_to?(:application) && defined?(Rails::Application) &&
- Rails.application.is_a?(Rails::Application) && Rails.application.class.name.sub(/::Application$/, "")
- end
-
- alias :defined_app_const_base? :defined_app_const_base
-
- def app_const_base
- @app_const_base ||= defined_app_const_base || app_name.gsub(/\W/, "_").squeeze("_").camelize
- end
- alias :camelized :app_const_base
-
- def app_const
- @app_const ||= "#{app_const_base}::Application"
- end
-
- def valid_const?
- if /^\d/.match?(app_const)
- raise Error, "Invalid application name #{original_app_name}. Please give a name which does not start with numbers."
- elsif RESERVED_NAMES.include?(original_app_name)
- raise Error, "Invalid application name #{original_app_name}. Please give a " \
- "name which does not match one of the reserved rails " \
- "words: #{RESERVED_NAMES.join(", ")}"
- elsif Object.const_defined?(app_const_base)
- raise Error, "Invalid application name #{original_app_name}, constant #{app_const_base} is already in use. Please choose another application name."
- end
- end
-
- def mysql_socket
- @mysql_socket ||= [
- "/tmp/mysql.sock", # default
- "/var/run/mysqld/mysqld.sock", # debian/gentoo
- "/var/tmp/mysql.sock", # freebsd
- "/var/lib/mysql/mysql.sock", # fedora
- "/opt/local/lib/mysql/mysql.sock", # fedora
- "/opt/local/var/run/mysqld/mysqld.sock", # mac + darwinports + mysql
- "/opt/local/var/run/mysql4/mysqld.sock", # mac + darwinports + mysql4
- "/opt/local/var/run/mysql5/mysqld.sock", # mac + darwinports + mysql5
- "/opt/lampp/var/mysql/mysql.sock" # xampp for linux
- ].find { |f| File.exist?(f) } unless Gem.win_platform?
- end
-
def get_builder_class
defined?(::AppBuilder) ? ::AppBuilder : Rails::AppBuilder
end
diff --git a/railties/lib/rails/generators/rails/db/system/change/change_generator.rb b/railties/lib/rails/generators/rails/db/system/change/change_generator.rb
new file mode 100644
index 0000000000..63849eb18d
--- /dev/null
+++ b/railties/lib/rails/generators/rails/db/system/change/change_generator.rb
@@ -0,0 +1,55 @@
+# frozen_string_literal: true
+
+require "rails/generators/base"
+
+module Rails
+ module Generators
+ module Db
+ module System
+ class ChangeGenerator < Base # :nodoc:
+ include Database
+ include AppName
+
+ class_option :to, required: true,
+ desc: "The database system to switch to."
+
+ def self.default_generator_root
+ path = File.expand_path(File.join(base_name, "app"), base_root)
+ path if File.exist?(path)
+ end
+
+ def initialize(*)
+ super
+
+ unless DATABASES.include?(options[:to])
+ raise Error, "Invalid value for --to option. Supported preconfigurations are: #{DATABASES.join(", ")}."
+ end
+
+ opt = options.dup
+ opt[:database] ||= opt[:to]
+ self.options = opt.freeze
+ end
+
+ def edit_database_config
+ template("config/databases/#{options[:database]}.yml", "config/database.yml")
+ end
+
+ def edit_gemfile
+ database_gem_name, _ = gem_for_database
+ gsub_file("Gemfile", all_database_gems_regex, database_gem_name)
+ end
+
+ private
+ def all_database_gems
+ DATABASES.map { |database| gem_for_database(database) }
+ end
+
+ def all_database_gems_regex
+ all_database_gem_names = all_database_gems.map(&:first)
+ /(\b#{all_database_gem_names.join('\b|\b')}\b)/
+ end
+ end
+ end
+ end
+ end
+end