1 files changed, 37 insertions, 0 deletions
diff --git a/lib/autorequire/only_when.rb b/lib/autorequire/only_when.rb
new file mode 100644
index 0000000..2700bee
--- /dev/null
+++ b/lib/autorequire/only_when.rb
@@ -0,0 +1,37 @@
+module RCM
+  # OnlyWhen (e.g. run on host foo)
+  class OnlyWhen
+    require 'socket'
+
+    def initialize
+      @conds = {}
+    end
+
+    def is(arg)
+      arg
+    end
+
+    def method_missing(method_name, *args, &block)
+      @conds[method_name] = args.first
+    end
+
+    def respond_to_missing?
+      true
+    end
+
+    def met?
+      return false if @conds.key?(:hostname) && Socket.gethostname != @conds[:hostname].to_s
+
+      true
+    end
+  end
+
+  # Add 'only_when' to DSL
+  class RCM
+    def only_when(&block)
+      conds = OnlyWhen.new
+      conds.instance_eval(&block)
+      @conds_met = conds.met?
+    end
+  end
+end