Alan D. Cabrera wrote:
On 2/17/2006 1:35 AM, Anders Hessellund Jensen wrote:
Gianny Damour wrote:
Basically, this is how I see a migration module by module working:
1. take one module;
2. write its pom.xml;
3. remove from its project.xml all the external dependencies, i.e.
the non Geronimo dependencies (they are no more required as they are
now defined by pom.xml); and
4. update its maven.xml to invoke the relevant M2 build goal.
The M1 reactor still drives the multiproject build. This means that
we do not update the top level maven.xml file. When all the projects
of a given multiproject build, e.g. new1, has been migrated, we let
M2 drives the multiproject build.
I'm not sure this will work if we remove the maven 1 dependencies. M1
will not know in which order to build the M2 modules if the
dependencies are removed.
I suggest we instead update the top level maven.xml file and initiate
the M2 build from there. M2 will know in which order to build the M2
dependencies. We just have to make sure that no M2 modules depends on
M1 modules.
Does the entire system need to build using a single command for this
interim conversion? Why not have people do a
mvn install
maven new
The "mvn install" will build both maven 1 and 2 jars. The "maven new"
will use the maven 1 jars.
That also works. This approach assmes that the M2 modules that we
migrate do not depend on modules which have not yet been migrated to M2
- basically, this implies that modules are migrated in the same order
than the build order derived by the M1 reactor.
I think that I like this approach better than my previous idea, where
any module could be migrated - whatever its dependencies. However, I am
not really keen to have people use two commands and would prefer to
simply use the maven command which triggers the mvn command under the cover.
I think that this has already been suggested by David J.: we add a goal,
e.g. new000, which is executed between new00 and new1. new000 launches
mvn install in the root project directory. We add to the excludes list
of new1 the migrated modules (we could also remove the M1 project files
after migration).
If everyone agrees on the above, then let's start this migration :) -
and I also volunteer to do the migration.
Thanks,
Gianny
Regards,
Alan
