From 6b207eb4806708da435d7f605043fb9ad59fa674 Mon Sep 17 00:00:00 2001
From: Kuba Turek <jakub.turek@edpauto.com>
Date: Sat, 17 Jan 2015 23:29:12 +0100
Subject: [PATCH 1/4] Obtain environment variables

---
 Mage/Task/AbstractTask.php | 49 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 49 insertions(+)

diff --git a/Mage/Task/AbstractTask.php b/Mage/Task/AbstractTask.php
index 491adfb..3637148 100644
--- a/Mage/Task/AbstractTask.php
+++ b/Mage/Task/AbstractTask.php
@@ -307,4 +307,53 @@ abstract class AbstractTask
         }
         return $result;
     }
+
+    /**
+     * Returns the array of environment variables
+     * Returned array contains both system variables and variables set in config
+     * WARNING: To access system's variables you need to set proper value in your php.ini at variables_order key
+     * @see http://php.net/manual/en/ini.core.php#ini.variables-order
+     *
+     * @return array
+     */
+    protected function getEnvVariables()
+    {
+        $configVars = array_merge(
+            $this->getConfig()->general('env', []),
+            $this->getConfig()->environmentConfig('env', []),
+            $this->getConfig()->getParameter('env', [])
+        );
+
+        if (isset($configVars['variables'])) {
+            $configVars = $configVars['variables'];
+        }
+
+        $envVariables = array_merge(
+            $_ENV,
+            $configVars
+        );
+
+        return $envVariables;
+    }
+
+    /**
+     * Returns ready to inject environment string
+     * The string is build from env vars array in schema:
+     *  key1=value1 key2=value3 ...
+     *
+     * @return string
+     */
+    protected function getEnvVarsString()
+    {
+        $envVarsArray = $this->getEnvVariables();
+        $envVars = array_map(
+            function ($key, $value) {
+                return "$key=$value";
+            },
+            array_keys($envVarsArray),
+            $this->getEnvVariables()
+        );
+
+        return join(' ', $envVars);
+    }
 }

From e4ba19679a456d8861d079d44e3d061127404cca Mon Sep 17 00:00:00 2001
From: Kuba Turek <jakub.turek@edpauto.com>
Date: Sat, 17 Jan 2015 23:34:47 +0100
Subject: [PATCH 2/4] Prepend environment variables to command

---
 Mage/Task/AbstractTask.php | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Mage/Task/AbstractTask.php b/Mage/Task/AbstractTask.php
index 3637148..14bf390 100644
--- a/Mage/Task/AbstractTask.php
+++ b/Mage/Task/AbstractTask.php
@@ -224,6 +224,7 @@ abstract class AbstractTask
      */
     protected final function runCommand($command, &$output = null)
     {
+        $command = ltrim($this->getEnvVarsString() . ' ' . $command);
         if ($this->getStage() == self::STAGE_DEPLOY || $this->getStage() == self::STAGE_POST_RELEASE) {
             return $this->runCommandRemote($command, $output);
         } else {

From d7db7cb66d0a7c1b469ccc63045131130c6aa27a Mon Sep 17 00:00:00 2001
From: Kuba Turek <jakub.turek@edpauto.com>
Date: Sun, 18 Jan 2015 14:17:26 +0100
Subject: [PATCH 3/4] Add some usage examples

---
 docs/example-config/.mage/config/environment/production.yml | 3 +++
 docs/example-config/.mage/config/general.yml                | 4 ++++
 2 files changed, 7 insertions(+)

diff --git a/docs/example-config/.mage/config/environment/production.yml b/docs/example-config/.mage/config/environment/production.yml
index 97a3fcc..1af997f 100644
--- a/docs/example-config/.mage/config/environment/production.yml
+++ b/docs/example-config/.mage/config/environment/production.yml
@@ -22,3 +22,6 @@ tasks:
     - sampleTask
     - sampleTaskRollbackAware
 verbose_logging: true
+env:
+  variables:
+    symfony_env: prod
diff --git a/docs/example-config/.mage/config/general.yml b/docs/example-config/.mage/config/general.yml
index c3a9b6d..3accc0e 100644
--- a/docs/example-config/.mage/config/general.yml
+++ b/docs/example-config/.mage/config/general.yml
@@ -7,3 +7,7 @@ verbose_logging: false
 scm:
   type: git
   url:  git://github.com/andres-montanez/Zend-Framework-Twig-example-app.git
+env:
+  variables:
+    node_path: "/bin/node"
+    symfony_env: prod

From acd1891c66c3fd7f9eb518ae350e8e500bf12276 Mon Sep 17 00:00:00 2001
From: Kuba Turek <jakub.turek@edpauto.com>
Date: Sun, 18 Jan 2015 20:10:26 +0100
Subject: [PATCH 4/4] Add shorten version for env.variables in task config

---
 Mage/Task/AbstractTask.php | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/Mage/Task/AbstractTask.php b/Mage/Task/AbstractTask.php
index 14bf390..1ac923e 100644
--- a/Mage/Task/AbstractTask.php
+++ b/Mage/Task/AbstractTask.php
@@ -322,7 +322,10 @@ abstract class AbstractTask
         $configVars = array_merge(
             $this->getConfig()->general('env', []),
             $this->getConfig()->environmentConfig('env', []),
-            $this->getConfig()->getParameter('env', [])
+            $this->getConfig()->getParameter('env', []),
+            [
+                'variables' => $this->getConfig()->getParameter('env.variables', [])
+            ]
         );
 
         if (isset($configVars['variables'])) {