migrations

# File activerecord/lib/active_record/migration.rb, line 593
      def migrations(paths)
        paths = Array.wrap(paths)

        files = Dir[*paths.map { |p| "#{p}/[0-9]*_*.rb" }]

        seen = Hash.new false

        migrations = files.map do |file|
          version, name = file.scan(/([0-9]+)_([_a-z0-9]*).rb/).first

          raise IllegalMigrationNameError.new(file) unless version
          version = version.to_i
          name = name.camelize

          raise DuplicateMigrationVersionError.new(version) if seen[version]
          raise DuplicateMigrationNameError.new(name) if seen[name]

          seen[version] = seen[name] = true

          MigrationProxy.new(name, version, file)
        end

        migrations.sort_by(&:version)
      end