Adding prefetch of providers to transactions. Nothing is using it yet. I wrote it for cron jobs, but it is too much work to fix this for cron jobs right now.

git-svn-id: https://reductivelabs.com/svn/puppet/trunk@1806 980ebf18-57e1-0310-9a29-db15c13687c0

1 files changed, 18 insertions, 0 deletions

diff --git a/lib/puppet/transaction.rb b/lib/puppet/transaction.rb
index d19ef59ac..05fbe6914 100644
--- a/lib/puppet/transaction.rb
+++ b/lib/puppet/transaction.rb
@@ -162,6 +162,8 @@ class Transaction
         # Start logging.
         Puppet::Log.newdestination(@report)
 
+        prefetch()
+
         begin
             allevents = @objects.collect { |child|
                 events = []
@@ -250,6 +252,22 @@ class Transaction
         @report = Report.new
     end
 
+    # Prefetch any providers that support it.  We don't support prefetching
+    # types, just providers.
+    def prefetch
+        @objects.collect { |obj|
+            if pro = obj.provider
+                pro.class
+            else
+                nil
+            end
+        }.reject { |o| o.nil? }.uniq.each do |klass|
+            if klass.respond_to?(:prefetch)
+                klass.prefetch
+            end
+        end
+    end
+
     # Generate a transaction report.
     def report
         @resourcemetrics[:failed] = @failures.find_all do |name, num|