From 00ecfb30f360f6e9054fa1350e8accad8a91e274 Mon Sep 17 00:00:00 2001
From: Djamil Legato <djamil@djamil.it>
Date: Fri, 18 Dec 2015 13:38:28 -0800
Subject: [PATCH] Ensuring gpm selfupgrades doesn't continue if PHP min version
 requirement isn't met. Gracefully abort with error and details.

---
 system/src/Grav/Console/Gpm/SelfupgradeCommand.php | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/system/src/Grav/Console/Gpm/SelfupgradeCommand.php b/system/src/Grav/Console/Gpm/SelfupgradeCommand.php
index d2ef2d2d6..ae1bc18e4 100644
--- a/system/src/Grav/Console/Gpm/SelfupgradeCommand.php
+++ b/system/src/Grav/Console/Gpm/SelfupgradeCommand.php
@@ -82,6 +82,18 @@ class SelfupgradeCommand extends ConsoleCommand
         $remote = $this->upgrader->getRemoteVersion();
         $release = strftime('%c', strtotime($this->upgrader->getReleaseDate()));
 
+        if (!$this->upgrader->meetsRequirements()) {
+            $this->output->writeln("");
+            $this->output->writeln("<red>ATTENTION:</red>");
+            $this->output->writeln("   Grav has increased the minimum PHP requirement.");
+            $this->output->writeln("   You are currently running PHP <red>" . PHP_VERSION . "</red>, but PHP <green>" . GRAV_PHP_MIN . "</green> is required.");
+            $this->output->writeln("   Additional informations: <white>http://getgrav.org/blog/changing-php-requirements-to-5.5</white>");
+            $this->output->writeln("");
+            $this->output->writeln("Selfupgrade aborted.");
+            $this->output->writeln("");
+            exit;
+        }
+
         if (!$this->upgrader->isUpgradable()) {
             $this->output->writeln("You are already running the latest version of Grav (v" . $local . ") released on " . $release);
             exit;