Hi Robert,
On 04/05/17 21:55, Robert Patrick wrote:
With 3.5, you can now use a variable *but* that variable
> has to be accessible to the POM prior to finding its
> parent so the only solution is to move the
> version number outside the POM hierarchy and into a -D defined
variable.
Which is not true. You can define the property inside the pom file if
you like and can overwrite the version via command line (-Drevision=...).
> While this works, it seems to have some undesirable
> aspects to it. In my opinion, it would be better if
> Maven could find a way to resolve this issue
> without resorting to -Ds to specify the
> value of the variable.
> I am not sure it is possible but I also worry
> about moving the version number outside the POM...
Maybe Maven should consider a mechanism by which the project version number can
be defined in a separate location that is:
1.) Well-known so that all resolution can happen directly by interacting with
this location directly, without the need to traverse the parent hierarchy
2.) It is part of the project structure so that it can be managed in the
project's source control system
3.) It cannot be overridden at build time with command-line arguments.
4.) Has a mechanism by which to reference it from all the necessary locations
within the POMs
Maybe something like an optional .mvn/project.version file and a variable that
cannot be overridden to refer to it?
-----Original Message-----
From: Eric Benzacar [mailto:e...@benzacar.ca]
Sent: Thursday, May 04, 2017 12:53 PM
To: Maven Users List
Subject: Re: Continuous Delivery with Maven now possible?
I've read through Karl's blog
(https://urldefense.proofpoint.com/v2/url?u=http-3A__blog.soebes.de_blog_&d=DwIFaQ&c=RoP1YumCXCgaWHvlZYR8PQcxBKCX5YTpkKY057SbK10&r=Ql5uwmbofQMW0iErugdCnFgO-CBGr_pt_OzwdxJosG0&m=0Ys4DN-HQMZpvVqWFa1z91pnAzKb4AYSpzB_W99oBqY&s=YS5dQgFEyKUuZzQgF6kuQUcPO2kUvZ3-9aUHcY3Kmmk&e=
2017/04/02/maven-pom-files-without-a-version-in-it/), and while I understand
the approach, there is still one critical issue that bothers me. I think this
actually reopens an old thread that circulated on this list a few months ago,
but it related to the Idempotence of a pom file.
From my perspective/view a pom file should be idempotent. That is every single
build of a given NON-SNAPSHOT pom file should finish with the same build. But
by moving a release number or version number outside of the pom, it eliminates
this need. Furthermore, from a traceability perspective, my source control can
no longer show me precisely version was being built/developed at any given time.
By leveraging the mvn.config file, I'm a little further down the path, but none
the less, the value can be overridden at build time with a completely different
value. Consequently, I can still not be 100% confident that a pom delivered a
particular version.
I'm still not 100% sure of the best approach going forward, but I'm thinking
that something like the version-plugin being able to manipulate a revision
property that can then be committed as part of the pom would be the best of
both approaches. In that way, my developers can fix the version number, but my
build system can manipulate the revision property.
Does anyone know if there is a plugin that will allow for that?
Thanks,
Eric
On Thu, May 4, 2017 at 12:40 PM, Thomas Broyer <t.bro...@gmail.com> wrote:
How about everybody read their mail?
(see below)
On Thu, May 4, 2017 at 6:10 PM Curtis Rueden <ctrue...@wisc.edu> wrote:
Hi Dan, Karl & everyone,
See Karl's Blog
Link, please?
[…]
On 03/05/17 20:39, Dan Tran wrote:
Hi
I have been experimenting with suggestion from Karl [1] with
small
multi
module maven project.
[…]
[1]
https://urldefense.proofpoint.com/v2/url?u=http-3A__blog.soeb
es.de_blog_2017_04_02_maven-2Dpom-2Dfiles-2Dwithou&d=DwIFaQ&c
=RoP1YumCXCgaWHvlZYR8PQcxBKCX5YTpkKY057SbK10&r=Ql5uwmbofQMW0i
ErugdCnFgO-CBGr_pt_OzwdxJosG0&m=0Ys4DN-HQMZpvVqWFa1z91pnAzKb4
AYSpzB_W99oBqY&s=RYXyGU3piqrAe7XDXXTuPvbcQH935sduSNhMeYstT8Y&
e=
t-a-version-in-it/
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Mit freundlichem Gruß
Karl-Heinz Marbaise
--
SoftwareEntwicklung Beratung Schulung Tel.: +49 (0) 2405 / 415 893
Dipl.Ing.(FH) Karl-Heinz Marbaise USt.IdNr: DE191347579
Hauptstrasse 177
52146 Würselen http://www.soebes.de
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