Thanks for your input Baptiste,

Yes, we have been debating the relase process a bit here. Keeping the relase
process separate would e g mean that we know beforehand that we want to
build a release candidate. We could then start with the tagging and then
checkout on this tag for the build of the release candidate.

Not quite sure what you mean by:

(even if, imo, if you're depending on a snapshot revision, and try

debugging a snapshot version that's not the dev version, you have a problem

in your dev process)


Our central, nightly builds do not use published snapshots but always checks
out from CVS and then build from source. I agree that if a central build
(that could be a release candidate) was built using published snapshots, we
would have a problem.

/Bengt


2010/9/15 Baptiste MATHUS <m...@batmat.net>

> Yes, this is a typical, almost specific CVS problem that's understandable.
> As the versioning is done at the file level, and not at the repo one, it
> can
> be necessary to tag to be able to identify the code corresponding to a
> snapshot (even if, imo, if you're depending on a snapshot revision, and try
> debugging a snapshot version that's not the dev version, you have a problem
> in your dev process).
>
> This problem doesn't exist with SVN. For example, we use the
> buildnumber-maven-plugin and add the svn repository revision number to the
> manifest for each build. So finding corresponding code for a jar is no
> problem at all for us, but we actually hardly need it.
>
> For the dev process, only in my opinion, I think automatically releasing
> every nights isn't a very good pratice. I rather think the release process
> should be actually 100% standalone, but *manually* initiated (giving the
> new
> version and so).
>
> Cheers
>
> 2010/9/15 Bengt Rodehav <be...@rodehav.com>
>
> > We've had similar questions where I work. The question has been related
> to
> > how and when to create tags in CVS (preferrably using the
> > maven-release-plugin).
> >
> > Some people advocate tagging every build so that it can be recreated in
> > case
> > it was fit for delivery. This is a problem when using CVS since huge
> number
> > of tags are not handled very well.
> >
> > However, builds that could potentially become a released version must be
> > recreatable somehow which implies a tag in the version control system.
> > Whenever a "release candidate" is built, doesn't it have to be tagged -
> and
> > therefore released?
> >
> > When we enter a system testing period close to the release of a new
> > version.
> > We normally build and deploy new versions automatically every day. At
> some
> > point we decide that it's good enough to release. It is then imperative
> > that
> > the latest build (which we have used for testing) is the one we package
> and
> > tag.
> >
> > What are the best practices around this? I'm very curious to know how
> other
> > organisations handle this using maven.
> >
> > /Bengt
> >
> >
> > 2010/9/15 Baptiste MATHUS <m...@batmat.net>
> >
> > > Well, for example, we don't release automatically. We  launch manually
> it
> > > via a special release plugin through hudson, itself launching a maven
> > > release through the maven-release-plugin.
> > >
> > > This makes it easier to keep a clean release environment. Releasing
> from
> > a
> > > development machine would add risk since it (1) might be less close to
> > the
> > > production system and (2) might contain things depending on the dev box
> > > that
> > > wasn't added to the SCM.
> > >
> > > Snapshot builds are totally sufficient for us to handle testing
> purposes.
> > >
> > > Cheers
> > >
> > > 2010/9/15 baz themail <bazthem...@gmail.com>
> > >
> > > > Hi,
> > > >
> > > > I have been searching the maven website and articles but not sure if
> i
> > > > get the best practice for managing snapshots and release.
> > > > Specifically, if continuous builds produce maven snapshot builds,
> then
> > > > when will i produce maven release builds using maven release plug-in?
> > > >
> > > > Will I ever produce a maven release build via an automated build job
> > > > that runs daily for example? The problem with that is: Because maven
> > > > plugin is incrementing pom.xml, and the automated build job will
> > > > always detect changes even tho there is no changes in the produce
> > > > software code. Does it even make sense? Or, release build should be
> > > > run manually depending on the release schedule?
> > > >
> > > > Thank you.
> > > >
> > > > A.
> > > >
> > > > ---------------------------------------------------------------------
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> > > >
> > > >
> > >
> > >
> > > --
> > > Baptiste <Batmat> MATHUS - http://batmat.net
> > > Sauvez un arbre,
> > > Mangez un castor !
> > >
> >
>
>
>
> --
> Baptiste <Batmat> MATHUS - http://batmat.net
> Sauvez un arbre,
> Mangez un castor !
>

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