Re: [linuxtools-dev] Using target definition files to build with maven

[Geneviève Bastien <gbastien@xxxxxxxxxxxx>]

Hi Marc-André,

I think it's a very good idea. I recently had to add a dependency to the tmf project, I added it to the target definition, but had (and still have) no idea where to put that dependency for maven and the build still fails :(  Using the target definition seems an easier way and if it improves build time, all the better!

Geneviève


On 06/13/2014 09:46 PM, Marc-André Laperle wrote:

Hello,

I'm am looking at using target definition files to build the project in Maven/Tycho. See https://git.eclipse.org/r/#/c/28392/

This has two advantages:

1. The target files can be used both in the Maven build and inside Eclipse, which makes the dependencies consistent
2. It speeds up the "pre-lifecycle" phase of the build (resolving dependencies). In a normal build on Hudson, it saves about 3 mins. On my machine, a full compile with 'mvn clean package' (no tests) takes 4 mins instead of 7 mins.

However, it has one disadvantage: The target module has to be built first if you need to build only a specific submodule. This is a bit similar to how we had to build the license feature first before building a submodule, before the common license feature was made available. So for example, to build lttng/ one would have to:

cd releng/org.linuxtools.target
mvn clean install
cd ../lttng
mvn clean install

Let me know if you think this is reasonable.

Marc-Andre

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