[xwiki-devs] [Brainstorming] Controlling transformations

Hi devs, I’d like to discuss about how to control transformations and when they are executed. Right now we have an all-or-nothing strategy (either the transformation is defined in the config property or it’s not). We have some needs to be able to turn on/turn off some transformations on a page level basis. Here’s the idea that I put on https://jira.xwiki.org/browse/XWIKI-15100: * Add a new xproperty to Rendering.RenderingConfigClass * Modify java code: XWikiRenderingConfiguration, ExtendedRenderingConfiguration, DefaultExtendedRenderingConfiguration, RenderingConfigClassDocumentConfigurationSource * For the wiki level, get the config in Rendering.RenderingConfig * For the page level, get the config from an xobject of type Rendering.RenderingConfigClass * Make RenderingConfiguration.getTransformationNames() search in the current page, parent pages (spaces), current wiki, and fallback to xwiki.properties Note that, as Thomas pointed out in comment of https://jira.xwiki.org/browse/XWIKI-15100 the last point is the hard one. We could imagine having a transformation cache that would be loaded at startup and updated whenever a XWiki.RenderingConfigClass xobject is modified in the wiki. Very similar to wiki components. Note: We could also implement https://jira.xwiki.org/browse/XWIKI-13167 at the same time, with the query string in the URL overriding the transformations. WDYT? Any idea of the cost of adding such a feature in term of days? Does 7 days sounds good to you? (inluding testing and doc). Thanks -Vincent