Add build args

lib/mrsk/commands/builder/base.rb

@@ -0,0 +1,18 @@
+require "mrsk/commands/base"
+
+class Mrsk::Commands::Builder::Base < Mrsk::Commands::Base
+  delegate :argumentize, to: Mrsk::Configuration
+
+  def pull
+    docker :pull, config.absolute_image
+  end
+
+  def build_args
+    argumentize "--build-args", args
+  end
+
+  private
+    def args
+      config.builder["args"] || {}
+    end
+end