Add effortless? helper to chef-utilseffortless

This uses our new effortless detection in Ohai

Signed-off-by: Tim Smith <tsmith@chef.io>

2 files changed, 23 insertions, 0 deletions

diff --git a/chef-utils/lib/chef-utils/dsl/introspection.rb b/chef-utils/lib/chef-utils/dsl/introspection.rb
index 4edfb8d139..eff75727a9 100644
--- a/chef-utils/lib/chef-utils/dsl/introspection.rb
+++ b/chef-utils/lib/chef-utils/dsl/introspection.rb
@@ -29,6 +29,17 @@ module ChefUtils
     module Introspection
       include TrainHelpers
 
+      # Determine if the node is using the Chef Effortless pattern in which the Chef Infra Client is packaged using Chef Habitat
+      #
+      # @param [Chef::Node] node the node to check
+      # @since 17.0
+      #
+      # @return [Boolean]
+      #
+      def effortless?(node = __getnode)
+        !!(node && node.read("chef_packages", "chef", "chef_effortless"))
+      end
+
       # Determine if the node is a docker container.
       #
       # @param [Chef::Node] node the node to check
diff --git a/chef-utils/spec/unit/dsl/introspection_spec.rb b/chef-utils/spec/unit/dsl/introspection_spec.rb
index 2a841dee68..bcbe573ce1 100644
--- a/chef-utils/spec/unit/dsl/introspection_spec.rb
+++ b/chef-utils/spec/unit/dsl/introspection_spec.rb
@@ -32,6 +32,18 @@ RSpec.describe ChefUtils::DSL::Introspection do
 
   let(:test_instance) { IntrospectionTestClass.new(node) }
 
+  context "#effortless?" do
+    # FIXME: use a real VividMash for these tests instead of stubbing
+    it "is false by default" do
+      expect(node).to receive(:read).with("chef_packages", "chef", "chef_effortless").and_return(nil)
+      expect(ChefUtils.effortless?(node)).to be false
+    end
+    it "is true when ohai reports a effortless" do
+      expect(node).to receive(:read).with("chef_packages", "chef", "chef_effortless").and_return(true)
+      expect(ChefUtils.effortless?(node)).to be true
+    end
+  end
+
   context "#docker?" do
     # FIXME: use a real VividMash for these tests instead of stubbing
     it "is false by default" do