- Patch #367380 by Moshe: make block module optional.

includes/cache.inc

@@ -150,7 +150,9 @@ function cache_clear_all($cid = NULL, $table = NULL, $wildcard = FALSE) {
   if (!isset($cid) && !isset($table)) {
     // Clear the block cache first, so stale data will
     // not end up in the page cache.
-    cache_clear_all(NULL, 'cache_block');
+    if (module_exists('block')) {
+      cache_clear_all(NULL, 'cache_block');
+    }
     cache_clear_all(NULL, 'cache_page');
     return;
   }

modules/block/block.info

@@ -8,4 +8,3 @@ core = 7.x
 files[] = block.module
 files[] = block.admin.inc
 files[] = block.install
-required = TRUE

modules/block/block.install

@@ -168,6 +168,20 @@ function block_schema() {
   return $schema;
 }
 
+/**
+ * Implementation of hook_install().
+ */
+function block_install() {
+  drupal_install_schema('block');
+}
+
+/**
+ * Implementation of hook_uninstall().
+ */
+function block_uninstall() {
+  drupal_uninstall_schema('block');
+}
+
 /**
  * Refresh the block cache.
  */

modules/block/block.module

@@ -624,3 +624,10 @@ function _block_get_cache_id($block) {
     return implode(':', $cid_parts);
   }
 }
+
+/**
+ * Implementation of hook_flush_caches().
+ */
+function block_flush_caches() {
+  return array('cache_block');
+}

modules/system/system.install

@@ -330,7 +330,7 @@ function system_install() {
   }
 
   // Create tables.
-  $modules = array('system', 'filter', 'block', 'user', 'node');
+  $modules = array('system', 'filter', 'user', 'node');
   foreach ($modules as $module) {
     drupal_install_schema($module);
   }
@@ -369,9 +369,6 @@ function system_install() {
 
   db_query("INSERT INTO {variable} (name, value) VALUES ('%s', '%s')", 'theme_default', 's:7:"garland";');
   db_query("UPDATE {system} SET status = %d WHERE type = '%s' AND name = '%s'", 1, 'theme', 'garland');
-  db_query("INSERT INTO {block} (module, delta, theme, status, weight, region, pages, cache) VALUES ('%s', '%s', '%s', %d, %d, '%s', '%s', %d)", 'user', 'login', 'garland', 1, 0, 'left', '', -1);
-  db_query("INSERT INTO {block} (module, delta, theme, status, weight, region, pages, cache) VALUES ('%s', '%s', '%s', %d, %d, '%s', '%s', %d)", 'user', 'navigation', 'garland', 1, 0, 'left', '', -1);
-  db_query("INSERT INTO {block} (module, delta, theme, status, weight, region, pages, cache) VALUES ('%s', '%s', '%s', %d, %d, '%s', '%s', %d)", 'system', 'powered-by', 'garland', 1, 10, 'footer', '', -1);
 
   db_query("INSERT INTO {node_access} (nid, gid, realm, grant_view, grant_update, grant_delete) VALUES (%d, %d, '%s', %d, %d, %d)", 0, 0, 'all', 1, 0, 0);
 

modules/system/system.module

@@ -1553,7 +1553,7 @@ function system_cron() {
     }
   }
 
-  $core = array('cache', 'cache_block', 'cache_filter', 'cache_page', 'cache_form', 'cache_menu');
+  $core = array('cache', 'cache_filter', 'cache_page', 'cache_form', 'cache_menu');
   $cache_tables = array_merge(module_invoke_all('flush_caches'), $core);
   foreach ($cache_tables as $table) {
     cache_clear_all(NULL, $table);

profiles/default/default.profile

@@ -8,7 +8,7 @@
  *   An array of modules to enable.
  */
 function default_profile_modules() {
-  return array('color', 'comment', 'help', 'menu', 'taxonomy', 'dblog');
+  return array('block', 'color', 'comment', 'help', 'menu', 'taxonomy', 'dblog');
 }
 
 /**
@@ -90,6 +90,11 @@ function default_profile_task_list() {
  *   modify the $task, otherwise discarded.
  */
 function default_profile_tasks(&$task, $url) {
+  
+  // Enable 3 standard blocks.
+  db_query("INSERT INTO {block} (module, delta, theme, status, weight, region, pages, cache) VALUES ('%s', '%s', '%s', %d, %d, '%s', '%s', %d)", 'user', 'login', 'garland', 1, 0, 'left', '', -1);
+  db_query("INSERT INTO {block} (module, delta, theme, status, weight, region, pages, cache) VALUES ('%s', '%s', '%s', %d, %d, '%s', '%s', %d)", 'user', 'navigation', 'garland', 1, 0, 'left', '', -1);
+  db_query("INSERT INTO {block} (module, delta, theme, status, weight, region, pages, cache) VALUES ('%s', '%s', '%s', %d, %d, '%s', '%s', %d)", 'system', 'powered-by', 'garland', 1, 10, 'footer', '', -1);
 
   // Insert default user-defined node types into the database. For a complete
   // list of available node type attributes, refer to the node type API