#75002: Install-time and run-time requirements checking + status report page

1 files changed, 26 insertions, 1 deletions

diff --git a/install.php b/install.php
index 166e9f212..48cec04c0 100644
--- a/install.php
+++ b/install.php
@@ -28,7 +28,6 @@ function install_main() {
     // Establish a connection to the database.
     require_once './includes/database.inc';
     db_set_active();
-
     // Check if Drupal is installed.
     if (install_verify_drupal()) {
       install_already_done_error();
@@ -70,6 +69,9 @@ function install_main() {
     install_change_settings();
   }
 
+  // Check the installation requirements for Drupal and this profile.
+  install_check_requirements($profile);
+
   // Perform actual installation defined in the profile.
   $modules = drupal_verify_profile($profile, $install_locale);
   drupal_install_profile($profile, $modules);
@@ -513,4 +515,27 @@ function install_complete($profile) {
   print theme('maintenance_page', $output);
 }
 
+/**
+ * Page to check installation requirements and report any errors.
+ */
+function install_check_requirements($profile) {
+  $requirements = drupal_check_profile($profile);
+  $severity = drupal_requirements_severity($requirements);
+
+  // If there are issues, report them.
+  if ($severity == REQUIREMENT_ERROR) {
+    drupal_maintenance_theme();
+
+    foreach ($requirements as $requirement) {
+      if (isset($requirement['severity']) && $requirement['severity'] == REQUIREMENT_ERROR) {
+        drupal_set_message($requirement['description'] .' ('. st('Currently using !item !version', array('!item' => $requirement['title'], '!version' => $requirement['value'])) .')', 'error');
+      }
+    }
+
+    drupal_set_title('Incompatible environment');
+    print theme('install_page', '');
+    exit;
+  }
+}
+
 install_main();