WTP CVS Restructuring
In an effort to standardized groups on dev.eclipse.org especially in light of our recent WTP Refactoring, the page is to propose and document how to restructure our CVS directories, so their access can be managed by associating directories with Unix Groups. In principle, we could leave all the directories the way they are now, and just carefully assign the Unix groups on a directory by directory bases ... but, this would be very complicated, error prone, and hard to scale in the future.
The document will start by focusing on the old wst and jst directories, as they need the most work, and other subprojects addressed later, towards the end of this proposal.
WST and JST
These initial WTP projects were created with the following sort of hierarchy -- abbreviated and idealized here to simplify explaining the principles of the restructuring.
wst components assembly features plugins server features plugins tests xml features plugins org.eclipse.wst.xml.core org.eclipse.wst.xml.ui tests examples development thirdparty xsd plugins org.eclipse.wst.xsd.core org.eclipse.wst.xsd.ui tests
The new proposed structure would look as follows
webtools.maps releng.common releng.sourceediting releng.servertools releng.webservices releng.datatools releng.jeetools releng.ejbtools releng.dali releng.jsf webtools.releng features plugins org.eclipse.wtp.releng org.eclipse.wtp.releng.tests org.eclipse.wtp.releng.webupdatesite releng.builder releng.control releng.wtpbuilder releng.wtptools working sourceediting features plugins org.eclipse.wst.xml.core org.eclipse.wst.xml.ui org.eclipse.wst.xsd.core org.eclipse.wst.xsd.ui tests examples development thirdparty servertools features plugins tests
The above examples show a few points related to this restructuring.
- The best top-level directory name should be similar to what the access group name will be: toplevel.subproject.component-subcomponent. We do not currently have components controlled by access restrictions, so I think we in webtools need only define the toplevel.subproject groups for now, hence the top level directories can be simply the subproject name, since 'webtools' is in its own cvs repository, so 'webtools' does not need to be part of the directory name. Also note that component and subcomponents can be added in the future, but best to start off with simplest, and add detail later, when needed.
- Thus, everyone in a particular Eclipse subproject can be associated with a top level webtools directory, and automatically get access to everything in that directory, without the need for more complicated administration.
- Note the previous "assembly" features and plugins will be become part of releng subproject. These are the Eclipse product plugins, and the features that define our builds. Each project will be responsible for their own features delivered to WTP (currently called the build-component features).
- Note the example in source editing where what used to be directories, xml and xsd, are no longer distinguished by cvs directories, but all the plugins flattened under sourceediting/plugins.
- Conceptually and architecturally, xml and xsd could still be called 'components' but they do not have separate access control, so it's a bit overkill (and ultimately restrictive) to define them in separate cvs directories.
- Note that the "access control" for components such as xml and xsd is (still) social in nature. Legally, and in principle, anyone in the source editing project could change the code there, but in practice, there are individuals or small teams that normally do. Others, even in the same project, usually would attach a patch to a bugzilla if they wanted one of those experts to review and commit the code.
- The map files will not have access restrictions per se (all committers will have access to 'webtools.maps' but the maps will be refactored in directories that contain map files only for that subproject.
The following are the detailed listing of directories in what would be their new structure.
To Do Items
- start to refactor map files now, in preparation for having in separate directories.
- change maps to use module names only, to divide up the change, so once restructuring is done, only the modules file has to be changed, and builds will keep working. Note: there are probably some, JSF or JPA files that will have to be added to modules file. (Remember, any old builds, if they had to be re-created, would have to be changed, but that's unlikely to be needed).
- start to change the build process to build project-by-project in preparation for having map files in separate directories.
- try using CVS snapshots, on local, test machines with some move scripts to test to be sure we've accounted for everything.
JSF, JPA, and ATF
The directory-to-Unix-group associations will be pretty easy for these three subprojects and they can be left the way they are. Or, if any of those projects want to flatten their directory structure, this might be the time to do it. Each of those projects can provide their preference and will remain open for discussion, for now.
Reference and Notes
Committers can see our current CVS directories
Snapshots of our CVS can be obtained at