From f92ad8128d207063894aed8dbd74beb0c4e30392 Mon Sep 17 00:00:00 2001
From: Thibault Jouan <tj@a13.fr>
Date: Tue, 21 Jan 2014 17:11:17 +0000
Subject: [PATCH] Implement `set' and `get' recipe keywords:

  `set' registers a value at given index in env registry, `get'
retrieves a value at given index.
---
 features/recipes/registry.feature     | 21 +++++++++++++++++++++
 lib/producer/core/recipe/dsl.rb       |  8 ++++++++
 spec/producer/core/recipe/dsl_spec.rb | 14 ++++++++++++++
 3 files changed, 43 insertions(+)
 create mode 100644 features/recipes/registry.feature

diff --git a/features/recipes/registry.feature b/features/recipes/registry.feature
new file mode 100644
index 0000000..5cf984d
--- /dev/null
+++ b/features/recipes/registry.feature
@@ -0,0 +1,21 @@
+Feature: key/value registry
+
+  Scenario: `set' keyword registers a value in the registry
+    Given a recipe with:
+      """
+      set :some_key, 'some_value'
+
+      puts env.registry[:some_key]
+      """
+    When I successfully execute the recipe
+    Then the output must contain "some_value"
+
+  Scenario: `get' keyword fetches a value from the registry
+    Given a recipe with:
+      """
+      set :some_key, 'some_value'
+
+      puts get :some_key
+      """
+    When I successfully execute the recipe
+    Then the output must contain "some_value"
diff --git a/lib/producer/core/recipe/dsl.rb b/lib/producer/core/recipe/dsl.rb
index 55f5362..311de7e 100644
--- a/lib/producer/core/recipe/dsl.rb
+++ b/lib/producer/core/recipe/dsl.rb
@@ -37,6 +37,14 @@ module Producer
             task("#{name}", *args, &block)
           end
         end
+
+        def set(key, value)
+          env[key] = value
+        end
+
+        def get(key)
+          env[key]
+        end
       end
     end
   end
diff --git a/spec/producer/core/recipe/dsl_spec.rb b/spec/producer/core/recipe/dsl_spec.rb
index a7c39d0..4b0b4d6 100644
--- a/spec/producer/core/recipe/dsl_spec.rb
+++ b/spec/producer/core/recipe/dsl_spec.rb
@@ -100,5 +100,19 @@ module Producer::Core
         end
       end
     end
+
+    describe '#set' do
+      it 'registers a key/value pair in env registry' do
+        dsl.set :some_key, :some_value
+        expect(env[:some_key]).to eq :some_value
+      end
+    end
+
+    describe '#get' do
+      it 'fetches a value from the registry at given index' do
+        dsl.set :some_key, :some_value
+        expect(dsl.get :some_key).to eq :some_value
+      end
+    end
   end
 end