Remove most of sitealias.inc. (#2979)

* Remove most of sitealias.inc.

* Put back drush_convert_db_from_db_url(), as we are still using it.

* Put back drush_sitealias_is_remote_site

* Split DrupalDirectoryCommands out of CoreCommands, and fix bug with local directory paths.

includes/bootstrap.inc

@@ -106,7 +106,7 @@ function _drush_bootstrap_selected_uri() {
     }
     $uri = 'http://'. $current;
     $uri = drush_set_context('DRUSH_SELECTED_URI', $uri);
-    drush_sitealias_create_self_alias();
+    // drush_sitealias_create_self_alias();
   }
 
   return $uri;
@@ -249,7 +249,7 @@ function drush_bootstrap_max($max_phase_index = FALSE) {
  */
 function drush_bootstrap_max_to_sitealias($site_record, $max_phase_index = NULL) {
   if ((array_key_exists('root', $site_record) && !array_key_exists('remote-host', $site_record))) {
-    drush_sitealias_set_alias_context($site_record);
+    // drush_sitealias_set_alias_context($site_record);
     drush_bootstrap_max($max_phase_index);
     return TRUE;
   }

includes/exec.inc

@@ -276,16 +276,6 @@ function legacy_drush_os($site_record = NULL) {
   return $os;
 }
 
-/**
- * Determine the remote host ([email protected]) for
- * the specified site.
- */
-function drush_remote_host($site, $prefix = '') {
-  $hostname = drush_escapeshellarg(drush_sitealias_get_option($site, 'remote-host', '', $prefix), "LOCAL");
-  $username = drush_escapeshellarg(drush_sitealias_get_option($site, 'remote-user', '', $prefix), "LOCAL");
-  return $username . (empty($username) ? '' : '@') . $hostname;
-}
-
 /**
  * Make an attempt to simply wrap the arg with the
  * kind of quote characters it does not already contain.

includes/legacy.inc

@@ -7,7 +7,7 @@ use Drush\Sql\SqlBase;
  * versions. If they aren't working for you, consider upgrading your commandfile
  * so that it works with modern Drush.
  *
- * @deprecated 
+ * @deprecated
  */
 
 // @deprecated
@@ -21,19 +21,6 @@ function drush_sql_get_class($db_spec = NULL) {
   return SqlBase::create($options);
 }
 
-/**
- * Given an alias record, overwrite its values with options
- * from the command line and other drush contexts as specified
- * by the provided prefix.  For example, if the prefix is 'source-',
- * then any option 'source-foo' will set the value 'foo' in the
- * alias record.
- *
- * @deprecated
- */
-function drush_sitealias_overlay_options($site_alias_record, $prefix) {
-  return array_merge($site_alias_record, drush_get_merged_prefixed_options($prefix));
-}
-
 /**
  * Retrieves a collapsed list of all options
  * with a specified prefix.
@@ -296,3 +283,56 @@ function drush_table_column_autowidth($rows, $widths) {
     return $auto_widths;
 }
 
+/**
+ * Convert from an old-style database URL to an array of database settings.
+ *
+ * @param db_url
+ *   A Drupal 6 db url string to convert, or an array with a 'default' element.
+ * @return array
+ *   An array of database values containing only the 'default' element of
+ *   the db url. If the parse fails the array is empty.
+ */
+function drush_convert_db_from_db_url($db_url) {
+  $db_spec = array();
+
+  if (is_array($db_url)) {
+    $db_url_default = $db_url['default'];
+  }
+  else {
+    $db_url_default = $db_url;
+  }
+
+  // If it's a sqlite database, pick the database path and we're done.
+  if (strpos($db_url_default, 'sqlite://') === 0) {
+    $db_spec = array(
+      'driver'   => 'sqlite',
+      'database' => substr($db_url_default, strlen('sqlite://')),
+    );
+  }
+  else {
+    $url = parse_url($db_url_default);
+    if ($url) {
+      // Fill in defaults to prevent notices.
+      $url += array(
+        'scheme' => NULL,
+        'user'   => NULL,
+        'pass'   => NULL,
+        'host'   => NULL,
+        'port'   => NULL,
+        'path'   => NULL,
+      );
+      $url = (object)array_map('urldecode', $url);
+      $db_spec = array(
+        'driver'   => $url->scheme == 'mysqli' ? 'mysql' : $url->scheme,
+        'username' => $url->user,
+        'password' => $url->pass,
+        'host' => $url->host,
+        'port' => $url->port,
+        'database' => ltrim($url->path, '/'),
+      );
+    }
+  }
+
+  return $db_spec;
+}
+