renaming blink to puppet

git-svn-id: https://reductivelabs.com/svn/puppet/library/trunk@302 980ebf18-57e1-0310-9a29-db15c13687c0

1 files changed, 72 insertions, 0 deletions

diff --git a/lib/puppet/function.rb b/lib/puppet/function.rb
new file mode 100644
index 000000000..d5cc11107
--- /dev/null
+++ b/lib/puppet/function.rb
@@ -0,0 +1,72 @@
+#!/usr/local/bin/ruby -w
+
+# $Id$
+
+require 'blink'
+require 'blink/fact'
+
+module Blink
+    class Function
+        @@functions = Hash.new(nil)
+
+        #---------------------------------------------------------------
+        def Function.[](name)
+            return @@functions[name]
+        end
+        #---------------------------------------------------------------
+
+        #---------------------------------------------------------------
+        def call(args)
+            @code.call(args)
+        end
+        #---------------------------------------------------------------
+
+        #---------------------------------------------------------------
+        # we want a 'proc' item instead of a block, so that we can return
+        # from it
+        def initialize(name,code)
+            @name = name
+            @code = code
+
+            @@functions[name] = self
+        end
+        #---------------------------------------------------------------
+    end
+
+    Function.new("fact", proc { |fact|
+        require 'blink/fact'
+
+        value = Fact[fact]
+        Blink.debug("retrieved %s as %s" % [fact,value])
+        value
+    })
+
+    Function.new("addfact", proc { |args|
+        require 'blink/fact'
+        #Blink.debug("running addfact")
+
+        hash = nil
+        if args.is_a?(Array)
+            hash = Hash[*args]
+        end
+        name = nil
+        if hash.has_key?("name")
+            name = hash["name"]
+            hash.delete("name")
+        elsif hash.has_key?(:name)
+            name = hash[:name]
+            hash.delete(:name)
+        else
+            raise "Functions must have names"
+        end
+        #Blink.debug("adding fact %s" % name)
+        newfact = Fact.add(name) { |fact|
+            hash.each { |key,value|
+                method = key + "="
+                fact.send(method,value)
+            }
+        }
+
+        #Blink.debug("got fact %s" % newfact)
+    })
+end