On 09/01/2012 15:48, Igor Fedorenko wrote:
On 12-01-09 7:18 AM, Mickael Istria wrote:
On 09/01/2012 12:59, Igor Fedorenko wrote:
Parent coordinates have to be constants,
otherwise Maven will not be
able to load build extensions that provide Tycho-specific
behaviour. The
same probably applies to artifactId and packaging, but I am
not 100% sure.
Ok, that's what I thought too.
I do not believe there are any
fundamental restrictions on other parts
of pom.xml, but implementation may or may not be possible
without
changes to Maven core.
It would probably make more sense to have ${manifest.*} in Maven
core
rather than just in Tycho. It is not related to p2, and any
Maven
project could use it.
Not sure I follow. Most non-Tycho Maven projects do not have
hand-written manifest in their sources, what values would be used
for
${manifest.*} in such projects?
I agree this would only make sense when a MANIFEST.MF does exist. If
you say this is very specific to Tycho projects, I trust you. My
point was that the MANIFEST.MF file is also "classic" Java stuff, so
maybe it would be useful in a wider context.
The real question, though, is it worth
the trouble?
I think that although it is not that difficult to synchronize
pom and
manifest, it is one more (easy to forget and annoying) step to
do when
maintaining a project. And having the opportunity to reference
MANIFEST
in artifactId and version -and then to have automatic
synchronization-
would be a great step forward conceptually. It would make Tycho
even
more OSGi-friendly,
So it would be very nice to have it,
But that's not an immediate requirement, just more food for
thoughts.
Well, in this case why not take things even further and get rid of
the
pom altogether?
Very good suggestion ;)
I think that would be a very nice approach: have maven generate
_dynamically_ an in-memory pom description from a MANIFEST while
building in case a pom.xml does not already exists.
Most
Tycho projects have very basic pom.xml files, which
can be easily derived from other metadata.
I am aware that. But I am more thinking about making it even easier.
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