On Fri, Mar 17, 2017 at 02:11:20PM -0500, Curtis Rueden wrote: > I am currently discussing on GitHub with one of the Gentoo packagers the > possibility of packaging my group's Maven-based projects for Gentoo. > > The relevant issue is here: > https://github.com/imagej/imagej/issues/162 > > However, the issues are hardly unique to my projects. This has become a > very general discussion of rebuilding and packaging Maven projects. > > My questions are: > * Does anyone here use Gentoo?
I do. > * Has anyone packaged their Maven-based stuff for it? No, I haven't contributed any packages to Gentoo yet. > * Does anyone know of a _general_ process for doing so? Typically a Gentoo package specifies all of its dependencies as Gentoo packages, and Portage does the dependency management. This is probably why you have so much trouble: two package managers fighting for control. The "Gentoo Way" would seem to be: first package all of the dependencies individually, get them into Portage, then add the dependent, adjust the POM to assume all dependencies will be supplied at runtime, and let Portage calculate the classpath. Ick. There are some Gentoo packages based on projects which for some reason cannot or will not use stable releases of their dependencies, but instead package all of the source for those dependencies with the dependent code. It's grating, but it works. This is probably the easier route when using Maven in a Portage environment: ship everything as subprojects and build it all together. The middle path might be: package the dependencies individually, work out a way for Maven to see them as being present in the local repository, build the dependent happily using Maven. I don't know the guts of Maven well enough to say how hard it would be to plug in a new local-repository provider that uses the Gentoo /usr/share/*/lib layout. Binary dependencies are going to be a royal pain no matter how you do them. Ugh! One thing this means is that your package can never exist for any architecture that the binary is not built for. That's sadly not without precedent. -- Mark H. Wood Lead Technology Analyst University Library Indiana University - Purdue University Indianapolis 755 W. Michigan Street Indianapolis, IN 46202 317-274-0749 www.ulib.iupui.edu
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