Re: [gentoo-soc] Weekly Report: Big Data Infrastructure and Maven Overlay in Week 5

[Benda Xu <heroxbd@gentoo.org>]

Zhang Zongyu <zzy2529420793@gmail.com> writes:

> This week I have done a lot of repetitive work. That is, to go through
> all of the ebuild files in Gentoo Repository and to get them the
> equivalent GroupId and ArtifactId in Maven Central. There are more
> than 500 packages in dev-java/ and java-virtual/ category, and
> sometimes one Gentoo package may correspond to more than one Maven
> artifact, so it took me a lot of time to complete them. And here is my
> lookup up table which covers all packages in dev-java/ and maps
> "category/package:slot" into "groupId:artifactId".[1] As a result,
> spark-core can make use of more than 100 Gentoo native packages now.

My previous approach was to `ebuild xxxx prepare` the packages in
::gentoo and inspect the pom.xml file inside ${WORKDIR}.  Does that work
for you?

  https://github.com/gentoo/java-ebuilder/blob/master/scripts/meta.sh

> Besides, I have also added java-ebuilder some features. It can check
> the metadata of a package and get the correct SLOT, and it can make
> ebuild unpack "Maven Central distributed source files" into proper
> ${JAVA_SRC_DIR} now.

Good!

> Next week I am going to test and add jaxb (javax.xml.bind:jaxb-api and
> javax.xml.bind:jaxb-impl) and some newer version packages which are
> required by spark-core, and 

Good to know we are getting back jaxb.  It is strange to me that without
such a seemingly central package packages in ::gentoo still work.  Is it
now part of icedtea jdk?  Please dig more into the story behind jaxb in
the #gentoo-java IRC and bugzilla.

Maybe fordfrog have a better answer (@fordfrog, not sure if you have
subscribed to gentoo-soc, I am Ccing you).

> I hope the newer version ebuild files could be accepted by Gentoo-Java
> team. The prototype of the ebuild files that are just generated by
> java-ebuilder are listed in [2].

Please start the code review processes of the new java packages by
submitting bug reports and pull requests when you see fit.

Benda

> [1] lookup table containing all packages from dev-java/
> https://github.com/6-6-6/JEbuilder/blob/master/app-portage/java-ebuilder/files/scripts/LUT/LUT
> [2] a prototype overlay
> https://github.com/6-6-6/spark-overlay/tree/master/dev-java