From 04037a501164f92e534c1cf0ef07c90685a9eb3d Mon Sep 17 00:00:00 2001
From: Dries Buytaert <dries@buytaert.net>
Date: Wed, 8 Nov 2006 19:21:07 +0000
Subject: - Patch #92923 by webchick: made the installer more robust to missing
 modules.

---
 install.php | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

(limited to 'install.php')

diff --git a/install.php b/install.php
index 2a7fefdc6..0d480968f 100644
--- a/install.php
+++ b/install.php
@@ -73,8 +73,13 @@ function install_main() {
     install_change_settings($profile, $install_locale);
   }
 
-  // Perform actual installation defined in the profile.
+  // Verify existence of all required modules.
   $modules = drupal_verify_profile($profile, $install_locale);
+  if (!$modules) {
+    install_missing_modules_error($profile);
+  }
+
+  // Perform actual installation defined in the profile.
   drupal_install_profile($profile, $modules);
 
   // Warn about settings.php permissions risk
@@ -498,6 +503,18 @@ function install_already_done_error() {
   exit;
 }
 
+/**
+ * Show an error page when Drupal is missing required modules.
+ */
+function install_missing_modules_error($profile) {
+  global $base_url;
+
+  drupal_maintenance_theme();
+  drupal_set_title(st('Modules missing'));
+  print theme('install_page', '<p>'. st('One or more required modules are missing. Please check the error messages and <a href="!url">try again</a>.', array('!url' => "install.php?profile=$profile")) .'</p>');
+  exit;
+}
+
 /**
  * Page displayed when the installation is complete. Called from install.php.
  */
-- 
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