workspace module cacheTemplates performance

[dbauszus-glx]

The workspace module has a cacheTemplates method which parses the workspace, fetches every template from its source in order to compile a complete workspace. Roles will be ignored in this composition to ensure that every template is cached and the complete nested role structure can be discovered. This method is required to request the roles tree and to test the use of templates.

This method is not performing well since locales are awaited to ensure that the same template referenced in multiple locales is not fetched multiple times. At current the each locale is awaited for every layer to load.

The method can be improved by parsing the workspace every src property and cache these templates. Then iterate of src properties which may have been added from templates fetched until every template has been cached.

A src map should be created to avoid circular reference where the same src is defined in a template that calls itself.

[dbauszus-glx]

The cache templates method should live inside the workspace module and parse in a first run all src properties and cache these templates. Then parse only the cached templates and check for src inside these. And so on and so forth until there are no new src templates to load.