introduce a warn mechanism for debugging

We can now warn messages that will be passed to Kernel.warn if
debugging is enabled.

1 files changed, 12 insertions, 1 deletions

diff --git a/lib/facter.rb b/lib/facter.rb
index 3c69a94..ac06f68 100644
--- a/lib/facter.rb
+++ b/lib/facter.rb
@@ -68,11 +68,15 @@ module Facter
         if string.nil?
             return
         end
-        if @@debug != 0
+        if self.debugging?
             puts GREEN + string + RESET
         end
     end
 
+    def self.debugging?
+        @@debug != 0
+    end
+
     # Return a fact object by name.  If you use this, you still have to call
     # 'value' on it to retrieve the actual value.
     def self.[](name)
@@ -173,6 +177,13 @@ module Facter
         end
     end
 
+
+    def self.warn(msg)
+        if Facter.debugging? and msg and not msg.empty?
+            msg.each { |line| Kernel.warn line }
+        end
+    end
+
     # Remove them all.
     def self.reset
         @collection = nil