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[equinox-dev] Need help building a product with p2

Title: Need help building a product with p2

I've received some help from Andrew in this Bugzilla (https://bugs.eclipse.org/bugs/show_bug.cgi?id=226614) but I'm still having problems so I thought I'd take it to the list rather than in that Bugzilla.

We've been shipping an IDE product based on Eclipse for a few years now.  The way we've built our product in the past is essentially this:

1) Download the platform runtime, EMF, GEF, etc.. from eclipse.org and extract them into a product layout directory.
2) Checkout and tag our features and plugins
3) Use headless feature build on all of our features, and extract the generated archives into the product layout directory.

4) Copy our modified version of config.ini, .eclipseproduct, etc. into the product layout directory.
5) Generate an update site based on the generated features/plugins.

This gives us a full product layout for new installs, and allows users with older installs of our product to update to the new version using the update site.

This process broke when we moved to Eclipse 3.4M6 when p2 was introduced.  I've come to discover that we weren't really building it in the ideal fashion to begin with, so I'm trying to do it the proper way so we can get a properly p2-ized product layout and update site.

Andrew provided several useful links in that Bugzilla.  I've read about doing product builds, using the p2 meta generator and p2 director.  I've also played with the examples from EclipseCon presentation.

Here are some of the problems I'm having:

1) I created a .product file based on features.  I included our features as well as those org.eclipse features that we bundle with.  When I export it using the PDE product export from the UI, it generates a directory containing everything we need - all features and plugins (ours and org.eclipse.*), our branded launcher and ini file, .eclipseproduct file, config.ini file, jre, etc..  It of course does not contain the p2 data though.  I told the exporter to generate a metadata repository which it did.  I think I'm then supposed to run it through the p2 director to get the proper p2 directory.  I tried this, and it generated something, but I get the error "Cannot launch the Update UI.  This installation has not been configured properly for Software Updates" when I try to go to Help->Software Updates.  I assume I didn't get the command line correct for the p2 director.  This is what I did:

eclipsec.exe -nosplash -application org.eclipse.equinox.p2.director.app.application -metadataRepository C:\testproduct\repository\ -artifactRepository C:\testproduct\repository\ -destination C:\testproduct\eclipse\ -profile PlatformProfile -profileProperties org.eclipse.update.install.features=true -bundlepool C:\testproduct\eclipse -p2.os win32 -p2.ws win32 -p2.arch x86 -roaming -vmargs -Declipse.p2.data.area=C:\testproduct2\eclipse\p2

Any idea what I'm doing wrong?  I thought I should be passing -installIU but wasn't sure what to pass with it.  I tried the product id but it errored out saying it couldn't find the IU.

2) What I did in 1) was really just a test because we'll need to build everything from the command line and not from the export wizard.  I tried to build the product from the command line and kept getting an error that org.eclipse.rcp could not be found.  I removed all org.eclipse.* features from our product file and tried again.  Now it builds, and it generates the repo directory because I added the stuff to our build.properties file as instructed:

p2.metadata.repo = file:${buildDirectory}/repo
p2.artifact.repo = file:${buildDirectory}/repo
p2.metadata.repo.name = Carbide.c++ Metadata Repository
p2.artifact.repo.name = Carbide.c++ Artifact Repository
p2.flavor = tooling

This repo directory only contains the two xml files though (artifacts.xml and content.xml), unlike the product export which generated those as well as binary, features and plugins directories.

The other issue is that none of the org.eclipse.* features/plugins are included.  This is presumably because they're no longer in the .product file, but I had to do that to get the build to work.  I tried creating a master feature which just required all of our features and the org.eclipse features, but still got the missing rcp error.  Note: in the example2 from the EclispeCon zip, it builds a product and does include the org.eclipse stuff in the output.  This example is based on plugins rather than features.  This is the only meaningful difference I could see in the .product files.

I'm also confused about the topLevelElementType and topLevelElementId attributes in the build.properties files.  I couldn't find any documentation on these.  Ideally I'd put type=product and id=our product id, and then I assume the installIU would be the product id?

Anyway, sorry for the long email, but I'm stuck and could really use some help.