From 3ed0414d17e42753a8b5587c1225e3582cfe7bbd Mon Sep 17 00:00:00 2001
From: David Rothstein <drothstein@gmail.com>
Date: Sat, 8 Dec 2012 19:10:21 -0500
Subject: Issue #1727430 by tedbow, webchick, fubhy | amontero: Added
 'exclusive' flag to install profiles to auto-select them during installation.

---
 includes/install.core.inc | 33 ++++++++++++++++++++++++++++++++-
 1 file changed, 32 insertions(+), 1 deletion(-)

(limited to 'includes/install.core.inc')

diff --git a/includes/install.core.inc b/includes/install.core.inc
index 9805e1c88..7a694e9bb 100644
--- a/includes/install.core.inc
+++ b/includes/install.core.inc
@@ -1041,7 +1041,21 @@ function install_select_profile(&$install_state) {
 }
 
 /**
- * Selects an installation profile from a list or from a $_POST submission.
+ * Selects an installation profile.
+ *
+ * A profile will be selected if:
+ * - Only one profile is available,
+ * - A profile was submitted through $_POST,
+ * - Exactly one of the profiles is marked as "exclusive".
+ * If multiple profiles are marked as "exclusive" then no profile will be
+ * selected.
+ *
+ * @param array $profiles
+ *   An associative array of profiles with the machine-readable names as keys.
+ *
+ * @return
+ *   The machine-readable name of the selected profile or NULL if no profile was
+ *   selected.
  */
 function _install_select_profile($profiles) {
   if (sizeof($profiles) == 0) {
@@ -1061,6 +1075,23 @@ function _install_select_profile($profiles) {
       }
     }
   }
+  // Check for a profile marked as "exclusive" and ensure that only one
+  // profile is marked as such.
+  $exclusive_profile = NULL;
+  foreach ($profiles as $profile) {
+    $profile_info = install_profile_info($profile->name);
+    if (!empty($profile_info['exclusive'])) {
+      if (empty($exclusive_profile)) {
+        $exclusive_profile = $profile->name;
+      }
+      else {
+        // We found a second "exclusive" profile. There's no way to choose
+        // between them, so we ignore the property.
+        return;
+      }
+    }
+  }
+  return $exclusive_profile;
 }
 
 /**
-- 
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