added fm.rescan() method

CHANGELOG

@@ -1,6 +1,8 @@
 v1.4.6 (XXXX-XX-XX)
 -------------------
 
+* added fm.rescan() method for Foxx-Manager
+
 * fixed issue #734: foxx cookie and route problem
 
 * added method `fm.configJson` for arangosh

js/actions/api-foxx.js

@@ -145,6 +145,24 @@ actions.defineHttp({
     }
   })
 });
+      
+////////////////////////////////////////////////////////////////////////////////
+/// @brief rescans the FOXX application directory
+////////////////////////////////////////////////////////////////////////////////
+
+actions.defineHttp({
+  url : "_admin/foxx/rescan",
+  context : "admin",
+  prefix : false,
+
+  callback: easyPostCallback({
+    body: true,
+    callback: function (body) {
+      foxxManager.scanAppDirectory();
+      return true;
+    }
+  })
+});
 
 ////////////////////////////////////////////////////////////////////////////////
 /// @brief sets up a FOXX application

js/client/modules/org/arangodb/foxx/manager.js

@@ -684,6 +684,9 @@ exports.run = function (args) {
         exports.mount(args[1], args[2]);
       }
     }
+    else if (type === 'rescan') {
+      exports.rescan();
+    }
     else if (type === 'setup') {
       exports.setup(args[1]);
     }
@@ -822,6 +825,18 @@ exports.fetch = function (type, location, version) {
   return arangosh.checkRequestResult(res);
 };
 
+////////////////////////////////////////////////////////////////////////////////
+/// @brief rescans the FOXX application directory
+////////////////////////////////////////////////////////////////////////////////
+
+exports.rescan = function () {
+  'use strict';
+
+  var res = arango.POST("/_admin/foxx/rescan", "");
+
+  return arangosh.checkRequestResult(res);
+};
+
 ////////////////////////////////////////////////////////////////////////////////
 /// @brief mounts a FOXX application
 ////////////////////////////////////////////////////////////////////////////////
@@ -1436,6 +1451,8 @@ exports.help = function () {
     "setup"     : "setup executes the setup script (app must already be mounted)",
     "install"   : "fetches a foxx application from the central foxx-apps repository, mounts it to a local URL " +
                   "and sets it up",
+    "rescan"    : "rescans the foxx application directory on the server side (only needed if server-side apps " + 
+                  "directory is modified by other processes)",
     "replace"   : "replaces an aleady existing foxx application with the current local version",
     "teardown"  : "teardown execute the teardown script (app must be still be mounted)",
     "unmount"   : "unmounts a mounted foxx application",

js/server/modules/org/arangodb/foxx/manager.js

@@ -823,6 +823,17 @@ exports.scanAppDirectory = function () {
   scanDirectory(module.appPath()); 
 };
 
+////////////////////////////////////////////////////////////////////////////////
+/// @brief rescans the FOXX application directory
+/// this function is a trampoline for scanAppDirectory
+/// the shorter function name is only here to keep compatibility with the
+/// client-side foxx manager
+////////////////////////////////////////////////////////////////////////////////
+
+exports.rescan = function () {
+  return exports.scanAppDirectory();
+};
+
 ////////////////////////////////////////////////////////////////////////////////
 /// @brief mounts a FOXX application
 ///