From e4b40638223101ada06c78f574ff2d9399793e22 Mon Sep 17 00:00:00 2001
From: Guillaume DOTT <guillaume+github@dott.fr>
Date: Thu, 14 Aug 2014 18:00:15 +0200
Subject: [PATCH] Add Redis repository

---
 README.md                    |  5 +++++
 lib/flop.rb                  |  1 +
 lib/flop/feature.rb          |  1 +
 lib/flop/repository/redis.rb | 24 ++++++++++++++++++++++++
 4 files changed, 31 insertions(+)
 create mode 100644 lib/flop/repository/redis.rb

diff --git a/README.md b/README.md
index 4239333..79a2d12 100644
--- a/README.md
+++ b/README.md
@@ -24,10 +24,15 @@ First, you need to configure where to store everything by setting a repository.
 
 Available repositories are :
 - `Flop::Repository::Memory`
+- `Flop::Repository::Redis`
 
 To set the repository, create a new object and affect it to `Flop.repo`.
 ```ruby
 Flop.repo = Flop::Repository::Memory.new
+
+require 'redis'
+
+Flop.repo = Flop::Repository::Redis.new(Redis.new)
 ```
 
 ### Features
diff --git a/lib/flop.rb b/lib/flop.rb
index 0178195..955939b 100644
--- a/lib/flop.rb
+++ b/lib/flop.rb
@@ -2,6 +2,7 @@ require 'flop/version'
 
 require 'flop/feature'
 require 'flop/repository/memory'
+require 'flop/repository/redis'
 
 module Flop
   class << self
diff --git a/lib/flop/feature.rb b/lib/flop/feature.rb
index 765ebad..223718e 100644
--- a/lib/flop/feature.rb
+++ b/lib/flop/feature.rb
@@ -17,6 +17,7 @@ module Flop
 
     def set(value)
       repo.set(name, value)
+      value
     end
 
     def activate
diff --git a/lib/flop/repository/redis.rb b/lib/flop/repository/redis.rb
new file mode 100644
index 0000000..6f0d253
--- /dev/null
+++ b/lib/flop/repository/redis.rb
@@ -0,0 +1,24 @@
+module Flop
+  module Repository
+    class Redis
+      def initialize(redis, namespace = '')
+        @redis = redis
+        @namespace = namespace
+      end
+
+      def get(name)
+        @redis.get(key(name)).to_i == 1
+      end
+
+      def set(name, value)
+        @redis.set(key(name), value ? 1 : 0)
+      end
+
+      private
+
+      def key(name)
+        [@namespace, name].join(':')
+      end
+    end
+  end
+end