rapid7/metasploit-framework — pull request #1536 by limhoff-r7 (2013-03-03 02:40:51+00:00)
Title: Use ActiveRecord::Migrator  multiple migrations paths support

[#44034071]

ActiveRecord::Migrator has a class attribute, migrations_paths,
specificially for storing a list of different directories that have
migrations in them. ActiveRecord::Migrator.migrations_paths is used in
rake db:load_config, which is a dependency of db:migrate, etc. that is
passed to ActiveRecord::Migrator.migrate. Since migrate supports an
array of directories, and not just a single directory, there is no need
to merge all the migrations paths into one temporary directory as was
previously done.