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[p2-dev] Category generation from features


Today in the p2 call, someone from buckminster (sorry, didn't catch who) mentioned that they generate categories from features using some properties in the build.properties file.

Unless I'm missing something, the only difference in the metadata between a feature group IU and a category is the property "org.eclipse.equinox.p2.type.category = true".

What this really means, is that with today's publisher, any feature can be used to generate a category simply be adding a p2.inf file with the following:
properties.1.name=org.eclipse.equiox.p2.type.category
properties.1.value=true

(see https://bugs.eclipse.org/bugs/show_bug.cgi?id=265217)

-Andrew