On 22/07/2011 4:08 AM, Julien HENRY wrote:
Hi,
Background: I'm trying to develop a release helper tool for my company. We can't use the
maven-release-plugin for several reasons. We have a notion that is like a "release
train" were several projects must be released at the same time. These projects can
be Maven multi-module projects. These projects can have interdependencies (SNAPSHOT). But
of course no SNAPSHOT dependency is allowed on a project that is not in the release train.
Basically, I'm trying to have a tool to replace the current manual process:
1) think about release order according to inter dependencies (cycles are
forbidden)
2) mvn release:prepare release:perform on first project
3) update all references to this project (replace SNAPSHOT version by
released version) in all pom of the release train
4) mvn release:prepare release:perform on second project
5) update all references to this project (replace SNAPSHOT version by
released version) in all pom of the release train
... (repeat for all projects of the train)
We already have a "tweak" to allow a full build of the release train with one
Maven command. We have a tool that create a Maven aggregator pom where each submodule is
a svn:externals linking to the trunk of each project.
pom.xml (aggregator)
project1 -> svn:externals to another_location/project1/trunk
project2-> svn:externals to another_location/project2/trunk
...
projectN-> svn:externals to another_location/projectN/trunk
Now I try to do step 1 automatically. I want to find release order based on
inter dependencies of my release train. I found the ProjectSorter class in
Maven API, but it seems I have to create a MavenProject for each project, and
each sub module (as it seems this is not recursive).
Is there a better way ?
In fact the best would be to create a graph of interdependencies. Because I
would also try to detect and prevent this kind of cycle:
project1/submodule1 depend on project2/submodule1
project2/submodule1 depend on project1/submodule2
Can you explain how this would come about.
I do not see how this is possible, You would never get the projects to
build as SNAPSHOTs in the first place.
Ron
Thanks for any pointer.
Julien
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