Add Heroku button

.gitattributes

@@ -21,8 +21,6 @@ Dockerfile export-ignore
 **/README.* export-ignore
 
 # composer files
-composer.json export-ignore
-composer.lock export-ignore
 vendor/composer/installed.json export-ignore
 
 # binaries

.gitignore

@@ -8,6 +8,7 @@ Thumbs.db
 .*.swp
 *~
 *.lock
+!composer.lock
 .idea
 .buildpath
 .project

README.markdown

@@ -3,6 +3,8 @@ Miniflux - Minimalist News Reader
 
 [![Build Status](https://travis-ci.org/miniflux/miniflux.svg?branch=master)](https://travis-ci.org/miniflux/miniflux)
 
+[![Deploy](https://www.herokucdn.com/deploy/button.svg)](https://heroku.com/deploy?template=https://github.com/miniflux/miniflux/tree/master)
+
 Miniflux is a minimalist and web-based RSS reader.
 
 Features

app.json

@@ -0,0 +1,8 @@
+{
+  "name": "Miniflux",
+  "description": "Minimalist RSS Reader",
+  "repository": "https://github.com/miniflux/miniflux",
+  "logo": "https://raw.githubusercontent.com/miniflux/miniflux/master/assets/img/touch-icon-ipad-retina.png",
+  "keywords": ["rss", "feed", "atom", "minimalist", "miniflux"],
+  "addons": ["heroku-postgresql:hobby-dev"]
+}

app/common.php

@@ -2,6 +2,19 @@
 
 require __DIR__.'/../vendor/autoload.php';
 
+$dbUrlParser = new PicoDb\UrlParser();
+
+if ($dbUrlParser->isEnvironmentVariableDefined()) {
+    $dbSettings = $dbUrlParser->getSettings();
+
+    define('DB_DRIVER', $dbSettings['driver']);
+    define('DB_USERNAME', $dbSettings['username']);
+    define('DB_PASSWORD', $dbSettings['password']);
+    define('DB_HOSTNAME', $dbSettings['hostname']);
+    define('DB_PORT', $dbSettings['port']);
+    define('DB_NAME', $dbSettings['database']);
+}
+
 if (file_exists(__DIR__.'/../config.php')) {
     require __DIR__.'/../config.php';
 }

composer.json

@@ -12,6 +12,8 @@
         "optimize-autoloader": true
     },
     "require": {
+        "php" : ">=5.3.3",
+        "ext-mbstring" : "*",
         "fguillot/simple-validator": "v1.0.0",
         "fguillot/json-rpc": "v1.2.3",
         "fguillot/picodb": "v1.0.14 ",