type augeas: add 'incl' and 'lens' parameters

These parameters allow loading a file anywhere on the filesystem; using
them also greatly speeds up processing the resource.

  * lib/puppet/type/augeas.rb: add 'incl' and 'lens' parameters; change
    default for 'context' when 'incl' is given.
  * lib/puppet/provider/augeas/augeas.rb: when 'lens' and 'incl' are given,
    only load that file
  * spec/unit/type/augeas.rb: check that constraints on new parameters are
    enforced

This fixes ticket #2694

1 files changed, 14 insertions, 0 deletions

diff --git a/spec/unit/type/augeas.rb b/spec/unit/type/augeas.rb
index 5276d2cf2..2c1b04453 100644
--- a/spec/unit/type/augeas.rb
+++ b/spec/unit/type/augeas.rb
@@ -103,4 +103,18 @@ describe augeas do
             changes.retrieve.should == :need_to_run
         end
     end
+
+    describe "loading specific files" do
+        it "should require lens when incl is used" do
+            lambda { augeas.new(:name => :no_lens, :incl => "/etc/hosts")}.should raise_error(Puppet::Error)
+        end
+
+        it "should require incl when lens is used" do
+            lambda { augeas.new(:name => :no_incl, :lens => "Hosts.lns") }.should raise_error(Puppet::Error)
+        end
+
+        it "should set the context when a specific file is used" do
+            augeas.new(:name => :no_incl, :lens => "Hosts.lns", :incl => "/etc/hosts")[:context].should == "/files/etc/hosts"
+        end
+    end
 end