Hi,
it's a common requirement to automatically have sequential version
numbers being generated for artifact versions, e.g. based on SVN
revision numbers. Such sequential version numbers can then be used for
detection of updates of software modules, e.g. Netbeans modules or
Magnolia modules.
While the buildnumber-plugin does provide this for Subversion, it
doesn't do so for Git, and there is a corresponding open issue for the
buildnumber-plugin https://jira.codehaus.org/browse/MBUILDNUM-93. There
wasn't progress on that issue since a patch was supplied one year ago,
and the problem with that patch seems to be that it replaces the
currently used SHA entirely with the number of commits.
Git itself does provide a similar feature with git describe
(https://www.kernel.org/pub/software/scm/git/docs/git-describe.html),
where a buildnumber is composed from commit number followed by short
SHA. A resulting artifact version would look like this:
"1.0.4-14-g2414721", where "1.0.4" is a manually maintained version
number, and "14-g2414721" is what the buildnumber plugin could generate.
I'd now be curious whether others also think that this approach would be
suitable for the buildnumber plugin?
This numbering scheme would result in automated version numbers that are
orderable within the same Git branch. There could be confusion only if
e.g. developers have local commits on the same branch without merging
other developers' changes on the same branch, and if they then exchange
locally built artifacts (.jars). In a setup of some continuous
integration system building from a single Git repo, version numbers
would always remain sequential for artifacts produced by the CI system.
In the worst case mentioned above, locally build artifact versions may
not sensibly be orderable, but they at least always remain
distinguishable due to the SHA short hash.
Thanks for any thoughts,
Jörg
--
*Dipl. inf. Jörg von Frantzius, System Architect*
Email mailto:joerg.frantz...@aperto.de
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