dsl.rb in ec2ssh-4.0.0

- old
+ new

@@ -1,16 +1,26 @@
 require 'ec2ssh/exceptions'
+require 'aws-sdk'
 
 module Ec2ssh
   class Dsl
     attr_reader :_result
 
+    CREDENTIAL_CLASSES = [Aws::Credentials, Aws::SharedCredentials, Aws::InstanceProfileCredentials, Aws::AssumeRoleCredentials].freeze
+    private_constant :CREDENTIAL_CLASSES
+
     def initialize
       @_result = Container.new
     end
 
     def aws_keys(keys)
+      unless keys.all? {|_, v| v.is_a?(Hash) && v.each_value.all? {|c| CREDENTIAL_CLASSES.any?(&c.method(:is_a?)) } }
+        raise DotfileValidationError, <<-MSG
+Since v4.0, `aws_keys` in the dotfile must be specified regions as a hash key.
+See: https://github.com/mirakui/ec2ssh#how-to-upgrade-from-3x
+        MSG
+      end
       @_result.aws_keys = keys
     end
 
     def profiles(*profiles)
       @_result.profiles = profiles
@@ -26,19 +36,24 @@
 
     def reject(&block)
       @_result.reject = block
     end
 
+    def filters(filters)
+      @_result.filters = filters
+    end
+
     def path(str)
       @_result.path = str
     end
 
     class Container < Struct.new(*%i[
       aws_keys
       profiles
       regions
       host_line
       reject
+      filters
       path
     ])
     end
 
     module Parser