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Date: Tue, 8 Mar 2016 11:33:28 -0800
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Subject: Re: variable doesn't work for version
From: Gary Gregory <garydgregory@gmail.com>
To: Maven Users List <users@maven.apache.org>
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On Tue, Mar 8, 2016 at 11:28 AM, Stephen Connolly <
stephen.alan.connolly@gmail.com> wrote:

> In the .mvn folder put an extension that contributes the ${rev} property
> based on whatever you seem safe
>

Where does this mystical .mvn folder reside, oh knowing one?

Is ${rev} a built in name?

Gary


>
> Then just have the project version include the ${rev} at the appropriate
> place
>
> On Tuesday 8 March 2016, Gary Gregory <garydgregory@gmail.com> wrote:
>
> > On Mon, Mar 7, 2016 at 6:53 PM, Eric B <ebenzacar@gmail.com
> <javascript:;>>
> > wrote:
> >
> > > The first question I have to ask is what you are trying to accomplish
> > with
> > > your continuous-delivery?
> >
> >
> > We have a Maven multi-module build which has thousands of unit tests. We
> > use Bamboo for CI and if we get a green build that means that all the
> tests
> > pass of course and that we successfully deployed the build to our repo
> (we
> > use Artifactory). We use the Maven's deploy to deploy, not the release
> > plugin.
> >
> > At this point anyone can use the built product out of Bamboo's saved
> > artifacts or Artifactory: our internal/external consultants, sales
> > engineers, formal QA, other downstream, products, and so on. It's up to
> the
> > PO to decide when to slap a new major or minor version label and he/she
> can
> > do at anytime.
> >
> > From development's POV, a green build is a released product, with a
> version
> > for example 3.1.201601070101 (3.1.YYYYMMDDHHMM). We used to have the SVN
> > version number as the maintenance version part but we are switching to
> Git
> > soon, hence the move to timestamps.
> >
> > Our parent POM contains what is considered a Maven "hack":
> >
> >   <properties>
> >
> > <maven.build.timestamp.format>yyyyMMddHHmm</maven.build.timestamp.format>
> >     <version.major>3</version.major>
> >     <version.minor>1</version.minor>
> >     <version.main>${version.major}.${version.minor}</version.main>
> >     <revision>${maven.build.timestamp}</revision>
> >     <dv.version>${version.main}.${revision}</dv.version>
> >
> > Each module then has:
> >
> > <version>${dv.version}</version>
> >
> > What is the Maven way to achieve this goal?
> >
> > Gary
> >
> >
> >
> > > Are you trying to put snapshot versions into a
> > > production/release state?
> > >
> > > The biggest issue I have noticed with teams is the misunderstanding of
> > how
> > > SNAPSHOTs work, or their purpose in the development process.  Either
> > teams
> > > want to release applications in SNAPSHOT mode, or release code that is
> > > essentially in SNAPSHOT (ie: development) mode, but with fixed version
> > > numbers.  But instead of changing version numbers, they use something
> > like
> > > a timestamp to increment version numbers automatically.  But at the end
> > of
> > > it all, it kind of contravenes maven's versioning concept.
> > >
> > > Normally, if your artifact is a work in progress, you should just be
> > using
> > > a SNAPSHOT.  If you are looking to make a real release, then you should
> > be
> > > promoting your code from a SNAPSHOT to a fixed version.  Generally, the
> > > concept of continuous-delivery should only apply when in a SNAPSHOT
> mode,
> > > since anything else isn't changing (ie: a fixed release doesn't need to
> > be
> > > re-delivered).
> > >
> > > So then that begs the question why you need to constantly change your
> > > version numbers during your development phase?
> > >
> > > And if the goal is truly to have fixed versions for some other team to
> > have
> > > access to a "stable" version of your artifact (ie: they can be
> guaranteed
> > > that it isn't going to change as you continue to develop), you could
> > always
> > > use something like the maven-release-plugin to promote from SNAPSHOT
> to a
> > > fixed version, and then re-open the next version as a SNAPSHOT.
> > (Although
> > > I know there are many dissenters against the release-plugin).
> > >
> > > Thanks,
> > >
> > > Eric
> > >
> > >
> > >
> > > On Mon, Mar 7, 2016 at 7:15 PM, Gary Gregory <garydgregory@gmail.com
> > <javascript:;>>
> > > wrote:
> > >
> > > > Is there a Maven-way to do continuous delivery then? As opposed
> > > > to continuous integration.
> > > >
> > > > Our current hack is to use the date as the maintenance version as a
> > > > variable for example 3.1.20160102
> > > >
> > > > G
> > > >
> > > > On Mon, Mar 7, 2016 at 11:18 AM, Eric B <ebenzacar@gmail.com
> > <javascript:;>> wrote:
> > > >
> > > > > I personally have a pet-peeve of using system variables to define
> > > version
> > > > > numbers; I find it is counter productive to the building of maven
> > > > > artifacts.  There is no traceability to determine  the actual
> version
> > > of
> > > > an
> > > > > artifact once it has been built.  At least having a fixed version
> > > number
> > > > in
> > > > > the <version> element shows up in the META-INF/maven/../pom.*
> files.
> > > > >
> > > > > Is using a variable for the version even a good idea?
> > > > >
> > > > > Thanks,
> > > > >
> > > > > Eric
> > > > >
> > > > >
> > > > > On Mon, Mar 7, 2016 at 4:04 AM, Stephen Connolly <
> > > > > stephen.alan.connolly@gmail.com <javascript:;>> wrote:
> > > > >
> > > > > > only specific properties are permitted for expansion in XPath
> paths
> > > > that
> > > > > > match the following regex
> > > > /project/(parent/)?(groupId|artifactId|version)
> > > > > >
> > > > > > On 2 March 2016 at 05:39, Raghu <raghunath_ku@yahoo.com.invalid>
> > > > wrote:
> > > > > >
> > > > > > > I have a POM with parent node as below: <parent>
> > > > > > > <groupId>com.test</groupId> <artifactId>pom.parent</artifactId>
> > > > > > > <version>${test.version}</version>
> > > > > > > <relativePath>../scripts/pom.xml</relativePath> </parent>
> > > > > > > This used to work till maven 3.3.3 version - mvn clean install.
> > > > > However,
> > > > > > > the version 3.3.9 throws error though. When I change the
> version
> > > to a
> > > > > > value
> > > > > > > instead of the variable, it works fine.
> > > > > > > Won't maven support variable for version? Or is it a bug with
> > > 3.3.9?
> > > > > > > Appreciate your response...
> > > > > > > - regards,raghu
> > > > > >
> > > > >
> > > >
> > > >
> > > >
> > > > --
> > > > E-Mail: garydgregory@gmail.com <javascript:;> | ggregory@apache.org
> > <javascript:;>
> > > > Java Persistence with Hibernate, Second Edition
> > > > <http://www.manning.com/bauer3/>
> > > > JUnit in Action, Second Edition <http://www.manning.com/tahchiev/>
> > > > Spring Batch in Action <http://www.manning.com/templier/>
> > > > Blog: http://garygregory.wordpress.com
> > > > Home: http://garygregory.com/
> > > > Tweet! http://twitter.com/GaryGregory
> > > >
> > >
> >
> >
> >
> > --
> > E-Mail: garydgregory@gmail.com <javascript:;> | ggregory@apache.org
> > <javascript:;>
> > Java Persistence with Hibernate, Second Edition
> > <http://www.manning.com/bauer3/>
> > JUnit in Action, Second Edition <http://www.manning.com/tahchiev/>
> > Spring Batch in Action <http://www.manning.com/templier/>
> > Blog: http://garygregory.wordpress.com
> > Home: http://garygregory.com/
> > Tweet! http://twitter.com/GaryGregory
> >
>
>
> --
> Sent from my phone
>


-- 
E-Mail: garydgregory@gmail.com | ggregory@apache.org
Java Persistence with Hibernate, Second Edition
<http://www.manning.com/bauer3/>
JUnit in Action, Second Edition <http://www.manning.com/tahchiev/>
Spring Batch in Action <http://www.manning.com/templier/>
Blog: http://garygregory.wordpress.com
Home: http://garygregory.com/
Tweet! http://twitter.com/GaryGregory

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