Merge pull request #2 from pikesley/redis

Caching (I think)

.travis.yml

@@ -1,6 +1,9 @@
 language: ruby
+cache: bundler
 rvm:
-- 2.3.0
+  - 2.3.0
+services:
+  - redis-server
 deploy:
   provider: heroku
   app: sam-and-kitty-dashboard

Gemfile

@@ -13,6 +13,7 @@ gem 'httparty'
 gem 'dotenv'
 gem 'rack-conneg'
 gem 'actionpack', '~> 4'
+gem 'redis'
 
 group :test do
   gem 'cucumber'

Gemfile.lock

@@ -147,6 +147,7 @@ GEM
     rb-fsevent (0.9.6)
     rb-inotify (0.9.5)
       ffi (>= 0.5.0)
+    redis (3.2.2)
     rest-client (1.8.0)
       http-cookie (>= 1.0.2, < 2.0)
       mime-types (>= 1.16, < 3.0)
@@ -221,6 +222,7 @@ DEPENDENCIES
   puma
   rack-conneg
   rake
+  redis
   rspec
   sass
   sinatra

app.json

@@ -0,0 +1,19 @@
+{
+  "name": "sam-and-kitty-dashboard",
+  "scripts": {
+  },
+  "env": {
+    "GITHUB_CLIENT_ID": {
+      "required": true
+    },
+    "GITHUB_CLIENT_SECRET": {
+      "required": true
+    },
+    "REDIS_URL": {
+      "required": true
+    }
+  },
+  "addons": [
+    "heroku-redis"
+  ]
+}

lib/dashboard.rb

@@ -7,6 +7,7 @@
 require 'csv'
 require 'dotenv'
 require 'json'
+require 'redis'
 require 'active_support/inflector'
 
 require_relative 'dashboard/fetcher'

lib/dashboard/fetcher.rb

@@ -15,7 +15,15 @@ def self.query
     end
 
     def self.get url
-      HTTParty.get url, headers: headers, query: query
+      redis = Redis.new
+      if redis.get url
+        return Marshal.load(redis.get url)
+      end
+
+      h = HTTParty.get url, headers: headers, query: query
+      redis.set url, Marshal.dump(h.body)
+      redis.expire url, 3600
+      return Marshal.load(redis.get url)
     end
 
     def self.extract_repo url
@@ -28,11 +36,12 @@ def self.fetch_CSV url
     end
 
     def self.fetch_metadata url
-      JSON.parse get(url).body
+      JSON.parse(get(url))
     end
 
     def self.assemble_data url
       m = fetch_metadata url
+
       m['data'] = fetch_CSV m['download_url']
       m['repo'] = extract_repo m['url']
 
@@ -41,7 +50,7 @@ def self.assemble_data url
 
     def self.list_CSVs repo
       url = ['https://api.github.com/repos', repo, 'contents'].join '/'
-      get(url).select { |i| i['name'].match /\.csv$/ }.map { |c| c['url'] }
+      JSON.parse(get(url)).select { |i| i['name'].match /\.csv$/ }.map { |c| c['url'] }
     end
 
     def self.fetch_CSVs repo