Use global migrations_path configuration in Migrator

activerecord/CHANGELOG.md

@@ -1,3 +1,14 @@
+*   Global `migrations_paths` configuration now being considered by
+    `Migrator.migrate(...)`. This now works as expected:
+
+      ```ruby
+      ActiveRecord::Tasks::DatabaseTasks.tap do |config|
+        config.migrations_paths = ['custom/migration/path']
+      end
+      ```
+
+    *Tobias Bielohlawek*
+
 *   Support dropping indexes concurrently in PostgreSQL.
 
     See http://www.postgresql.org/docs/9.4/static/sql-dropindex.html for more

activerecord/lib/active_record/tasks/database_tasks.rb

@@ -134,7 +134,7 @@ def migrate
         version = ENV["VERSION"] ? ENV["VERSION"].to_i : nil
         scope   = ENV['SCOPE']
         verbose_was, Migration.verbose = Migration.verbose, verbose
-        Migrator.migrate(Migrator.migrations_paths, version) do |migration|
+        Migrator.migrate(migrations_paths, version) do |migration|
           scope.blank? || scope == migration.scope
         end
       ensure

activerecord/test/cases/tasks/database_tasks_test.rb

@@ -277,12 +277,14 @@ class DatabaseTasksMigrateTest < ActiveRecord::TestCase
     def test_migrate_receives_correct_env_vars
       verbose, version = ENV['VERBOSE'], ENV['VERSION']
 
+      ActiveRecord::Tasks::DatabaseTasks.migrations_paths = 'custom/path'
       ENV['VERBOSE'] = 'false'
       ENV['VERSION'] = '4'
 
-      ActiveRecord::Migrator.expects(:migrate).with(ActiveRecord::Migrator.migrations_paths, 4)
+      ActiveRecord::Migrator.expects(:migrate).with('custom/path', 4)
       ActiveRecord::Tasks::DatabaseTasks.migrate
     ensure
+      ActiveRecord::Tasks::DatabaseTasks.migrations_paths = nil
       ENV['VERBOSE'], ENV['VERSION'] = verbose, version
     end
   end