From 456ed17724729cf25d4281a7404128e01796cbb7 Mon Sep 17 00:00:00 2001
From: Thibault Jouan <tj@a13.fr>
Date: Tue, 21 Jan 2014 17:31:32 +0000
Subject: [PATCH] Implement `get' task keyword, fetch from registry

---
 features/tasks/registry.feature     | 13 +++++++++++++
 lib/producer/core/task/dsl.rb       |  4 ++++
 spec/producer/core/task/dsl_spec.rb |  8 ++++++++
 3 files changed, 25 insertions(+)
 create mode 100644 features/tasks/registry.feature

diff --git a/features/tasks/registry.feature b/features/tasks/registry.feature
new file mode 100644
index 0000000..dc1270a
--- /dev/null
+++ b/features/tasks/registry.feature
@@ -0,0 +1,13 @@
+Feature: access to registry from task DSL
+
+  Scenario: `get' keyword fetches a value from the registry
+    Given a recipe with:
+      """
+      set :some_key, 'some_value'
+
+      task :output_some_key do
+        echo get :some_key
+      end
+      """
+    When I successfully execute the recipe
+    Then the output must contain "some_value"
diff --git a/lib/producer/core/task/dsl.rb b/lib/producer/core/task/dsl.rb
index e00e2aa..d82dad8 100644
--- a/lib/producer/core/task/dsl.rb
+++ b/lib/producer/core/task/dsl.rb
@@ -37,6 +37,10 @@ module Producer
         def ask(question, choices, prompter: Prompter)
           prompter.new(env.input, env.output).prompt(question, choices)
         end
+
+        def get(key)
+          env[key]
+        end
       end
     end
   end
diff --git a/spec/producer/core/task/dsl_spec.rb b/spec/producer/core/task/dsl_spec.rb
index b27ea21..f5119e6 100644
--- a/spec/producer/core/task/dsl_spec.rb
+++ b/spec/producer/core/task/dsl_spec.rb
@@ -102,5 +102,13 @@ module Producer::Core
         expect(ask).to eq :choice
       end
     end
+
+    describe '#get' do
+      let(:env) { Env.new(registry: { some_key: :some_value }) }
+
+      it 'fetches a value from the registry at given index' do
+        expect(dsl.get :some_key).to eq :some_value
+      end
+    end
   end
 end