2009/5/13 Niclas Hedhman <[email protected]> > On Wed, May 13, 2009 at 10:07 AM, Paul MERLIN <[email protected]> wrote: > > > The plans for maven 3 are interesting. Some things I noticed and think > can > > really decrease all this cumbersomeness : > > - use of a boolean solver for dependencies resolution > > - pom mixins (!!) > > - ruby, groovy, python DSLs for writing poms > > - tagging in poms > > I am not sure I want 'programmability' in the poms. I think a the Qi4j > approach of letting code generate a static model from which the system > is derived is probably suitable for build systems as well. Currently, > the scale is "fully declarative" or "on-the-fly" execution, which both > have its ups and downs. And instead of some murky middle-way, I think > the establishment of a model can be programmatic, but that the model > itself is declarative and therefor can be 'visualized', 'added to > docs', 'better tool integration' and what not. > > > If the qi4j builds have reproducibility issues I could give a hand. > > The problem with these kinds of problems is that the problem is not > problematic until the problem occurs. Yes, we have not worried about > putting versions on plugins, and I guess that is bad for later. Yet, > we don't even know what plugins we are using, other than by doing > > rm -rf ~/.m2/repository > mvn install > find ~/.m2/repository/ -name *.jar | egrep "(apache|codehaus)" > > or something like that. >
FYI, some commands I've found useful when locking down a build, although these are more for dependencies than plugins: mvn dependency:analyze http://maven.apache.org/plugins/maven-dependency-plugin/examples/preparing-dependencies.html mvn help:effective-pom http://maven.apache.org/plugins/maven-help-plugin/ you can also use the "Loving Iron Fist of Maven™" to enforce that all plugins must be versioned: http://maven.apache.org/plugins/maven-enforcer-plugin/ http://maven.apache.org/enforcer/enforcer-rules/index.html which can save you from having to repeatedly monitor the build poms yourself :) recent versions of the Maven binaries also now lock down core plugins to known stable versions at the time of the release HTH Cheers > -- > Niclas Hedhman, Software Developer > http://www.qi4j.org - New Energy for Java > > I live here; http://tinyurl.com/2qq9er > I work here; http://tinyurl.com/2ymelc > I relax here; http://tinyurl.com/2cgsug > > _______________________________________________ > qi4j-dev mailing list > [email protected] > http://lists.ops4j.org/mailman/listinfo/qi4j-dev > -- Cheers, Stuart
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