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-rw-r--r--activerecord/lib/active_record/tasks/database_tasks.rb2
-rw-r--r--railties/lib/rails/application/configuration.rb20
-rw-r--r--railties/lib/rails/application/dummy_erb_compiler.rb16
-rw-r--r--railties/test/application/rake/dbs_test.rb15
4 files changed, 40 insertions, 13 deletions
diff --git a/activerecord/lib/active_record/tasks/database_tasks.rb b/activerecord/lib/active_record/tasks/database_tasks.rb
index ef02ca8190..a8433fa0db 100644
--- a/activerecord/lib/active_record/tasks/database_tasks.rb
+++ b/activerecord/lib/active_record/tasks/database_tasks.rb
@@ -142,7 +142,7 @@ module ActiveRecord
end
def for_each
- databases = Rails.application.config.database_configuration
+ databases = Rails.application.config.load_database_yaml
database_configs = ActiveRecord::DatabaseConfigurations.new(databases).configs_for(env_name: Rails.env)
# if this is a single database application we don't want tasks for each primary database
diff --git a/railties/lib/rails/application/configuration.rb b/railties/lib/rails/application/configuration.rb
index af3ec36064..83a7b6cf01 100644
--- a/railties/lib/rails/application/configuration.rb
+++ b/railties/lib/rails/application/configuration.rb
@@ -184,6 +184,26 @@ module Rails
end
end
+ # Load the database YAML without evaluating ERB. This allows us to
+ # create the rake tasks for multiple databases without filling in the
+ # configuration values or loading the environment. Do not use this
+ # method.
+ #
+ # This uses a DummyERB custom compiler so YAML can ignore the ERB
+ # tags and load the database.yml for the rake tasks.
+ def load_database_yaml # :nodoc:
+ if path = paths["config/database"].existent.first
+ require "rails/application/dummy_erb_compiler"
+
+ yaml = Pathname.new(path)
+ erb = DummyERB.new(yaml.read)
+
+ YAML.load(erb.result)
+ else
+ {}
+ end
+ end
+
# Loads and returns the entire raw configuration of database from
# values stored in <tt>config/database.yml</tt>.
def database_configuration
diff --git a/railties/lib/rails/application/dummy_erb_compiler.rb b/railties/lib/rails/application/dummy_erb_compiler.rb
new file mode 100644
index 0000000000..4e92526969
--- /dev/null
+++ b/railties/lib/rails/application/dummy_erb_compiler.rb
@@ -0,0 +1,16 @@
+# frozen_string_literal: true
+
+# These classes are used to strip out the ERB configuration
+# values so we can evaluate the database.yml without evaluating
+# the ERB values.
+class DummyERB < ERB # :nodoc:
+ def make_compiler(trim_mode)
+ DummyCompiler.new trim_mode
+ end
+end
+
+class DummyCompiler < ERB::Compiler # :nodoc:
+ def compile_content(stag, out)
+ out.push "_erbout << 'dummy_compiler'"
+ end
+end
diff --git a/railties/test/application/rake/dbs_test.rb b/railties/test/application/rake/dbs_test.rb
index a8ec1f3663..07d57dea8a 100644
--- a/railties/test/application/rake/dbs_test.rb
+++ b/railties/test/application/rake/dbs_test.rb
@@ -54,26 +54,17 @@ module ApplicationTests
test "db:create and db:drop respect environment setting" do
app_file "config/database.yml", <<-YAML
development:
- database: db/development.sqlite3
+ database: <%= Rails.application.config.database %>
adapter: sqlite3
YAML
app_file "config/environments/development.rb", <<-RUBY
Rails.application.configure do
- config.read_encrypted_secrets = true
+ config.database = "db/development.sqlite3"
end
RUBY
- app_file "lib/tasks/check_env.rake", <<-RUBY
- Rake::Task["db:create"].enhance do
- File.write("tmp/config_value", Rails.application.config.read_encrypted_secrets)
- end
- RUBY
-
- db_create_and_drop("db/development.sqlite3", environment_loaded: false) do
- assert File.exist?("tmp/config_value")
- assert_equal "true", File.read("tmp/config_value")
- end
+ db_create_and_drop("db/development.sqlite3", environment_loaded: false)
end
def with_database_existing