So in that case, does the timestamp qualifier get automatically added on
every build? Documentation pointers welcome :)

On Thu, Jun 22, 2017 at 2:30 PM Neil Bartlett <njbartl...@gmail.com> wrote:

> We don't like to overload the version with information about release
> status, so no it's not exactly like maven. An artifact is a release simply
> if it is present in a designated Release repository.
>
> This enables a process where the artifact does not need to be rebuilt in
> order to release it. Rebuilding at such a late stage can lead to
> instability because small differences can creep in.
>
> Neil
>
> On 22 Jun 2017 8:23 p.m., "Justin Edelson" <jus...@justinedelson.com>
> wrote:
>
> > Neil-
> > Out of curiosity, in the bnd worldview you're describing, how is the
> > distinction between a snapshot and release denoted? Is it like Maven
> where
> > SNAPSHOT is used as a qualifier? Or is there some other convention?
> >
> > Thanks,
> > Justin
> >
> >
> > On Thu, Jun 22, 2017 at 1:51 PM Neil Bartlett <njbartl...@gmail.com>
> > wrote:
> >
> > > Are you sure that you’re actually *releasing* every day? Or do you only
> > > mean sending out snapshots?
> > >
> > > I agree with Justin that releases should be immutable, and that is what
> > > bnd and Bndtools have always tried to achieve. However bnd is not a
> > > complete end-to-end build system like Maven or Gradle, and Bndtools is
> > only
> > > an IDE, so we don’t get a lot of say in the larger process. You should
> > work
> > > within the conventions of whatever build tool you use.
> > >
> > > The process encouraged by bnd is very close to the Maven one. Once a
> > > release is made, you must not change it. If you change a package after
> a
> > > release, then you move up to a new version number for that package. You
> > can
> > > then build and publish as many snapshot of that new version number as
> you
> > > like, usually with a timestamp in the qualifier segment of the version.
> > > Once you release, that version is consumed and you go back to the
> > beginning
> > > of this paragraph.
> > >
> > > Neil
> > >
> > >
> > > > On 22 Jun 2017, at 18:12, Tom Quarendon <
> > > tom.quaren...@worldprogramming.com> wrote:
> > > >
> > > > The cadence is important I that if I want to "release" off the back
> of
> > > each build, I don't want to have to manually make a code modification
> > every
> > > day, nor do I want to have the build process modify the source code,
> that
> > > just doesn't seem right.
> > > >
> > > > I'm probably at odds with standard practice.
> > > >
> > > > -----Original Message-----
> > > > From: Justin Edelson [mailto:jus...@justinedelson.com]
> > > > Sent: 22 June 2017 17:40
> > > > To: users@felix.apache.org
> > > > Subject: Re: API baselining with maven-bundle-plugin
> > > >
> > > > The cadence of releases is irrelevant. But each release must have a
> > > distinct (bundle) version number. Otherwise, the version loses any
> > meaning
> > > since two copies of "version 1.0.0" are not necessarily the same.
> > > >
> > > > If you only want to change the bundle version when you start changing
> > > the project, that's certainly a choice you can make. I find (and many
> > > others do
> > > > too) it easier to do this automatically at the time of release (i.e.
> > set
> > > the master/trunk version to lastversion+1-SNAPSHOT) so that it doesn't
> > get
> > > forgotten.
> > > >
> > > > I can't speak to how bndtools work. I assume it must do some kind of
> > > automatic bundle version management since it would be inappropriate to
> > have
> > > mutable releases.
> > > >
> > > >
> > > > On Thu, Jun 22, 2017 at 11:58 AM Tom Quarendon <
> > > tom.quaren...@worldprogramming.com> wrote:
> > > >
> > > >> I perhaps have a different concept of how things work. But I'm not
> > > >> very familiar with how maven works.
> > > >>
> > > >> Fundamentally, if I haven't changed any code, why have any of the
> > > >> version numbers changed? I'm perhaps viewing things from a
> continuous
> > > >> deployment perspective rather than a "release once a year"
> > perspective.
> > > >>
> > > >> As far as I can tell with bndtools, version numbers are changed as,
> > > >> and only as necessary.
> > > >> I check out the source code, and then as I change code, it prompts
> me
> > > >> to change package and bundle versions appropriately.
> > > >> Hence after my edits, the package and version numbers of things I
> > > >> haven't changed are the same as they were, which seems right to me.
> > > >> Things that I've changed have changed version package and bundle
> > > version numbers.
> > > >> If I then do a "mvn deploy" (well, "gradle release") on the result,
> > > >> then OK, the unchanged bundles will be re-released to the repository
> > > >> (or maybe not, maybe maven/gradle doesn't replace a bundle with one
> > > >> with the same version, don't know), but the contents are the same
> > > >> (from a source perspective anyhow), so that doesn't matter.
> > > >>
> > > >> As I say, I don't have much experience of using maven etc, I was
> > > >> confused that it worked in an apparently different way to bndtools,
> > > >> which is based on the same thing.
> > > >>
> > > >>
> > > >>
> > > >> -----Original Message-----
> > > >> From: Justin Edelson [mailto:jus...@justinedelson.com]
> > > >> Sent: 22 June 2017 15:15
> > > >> To: users@felix.apache.org
> > > >> Subject: Re: API baselining with maven-bundle-plugin
> > > >>
> > > >> Hi,
> > > >> I think you might be mixing up the bundle version (what I think you
> > > >> are referring to as the "project version") with the package
> versions.
> > > >> baseline is larger concerned with the latter, and only uses the
> former
> > > >> to find the comparison version.
> > > >>
> > > >> Released versions should always be considered immutable, so you
> should
> > > >> *always* change the project version immediately after a release. If
> > > >> you use the maven-release-plugin, this is automatically done, but
> > > >> otherwise you would need to do this manually.
> > > >>
> > > >> Here's the way it is supposed to work:
> > > >>
> > > >> * You have a bundle with version 1.0.0 and package com.myco.foo at
> > > >> version 1.0.0. This bundle is deployed in some repository.
> > > >> * The current version of the bundle is now 1.0.1.SNAPSHOT (or
> > > >> 1.0.1-SNAPSHOT in Maven terms).
> > > >> * You make some change to one of the classes/interfaces in
> > com.myco.foo.
> > > >> * Then you run the baseline plugin. Baseline compares the current
> > > >> state against the last release (so 1.0.1.SNAPSHOT vs. 1.0.0) and
> > > >> checks each exported package. It sees that there has been some
> change
> > > >> in com.myco.foo which requires that the package version change. It
> > > >> then alerts you to this change and recommends a new package version
> > > >> number. Alternatively, if you changed the exported package version,
> > > >> baseline will still tell you that there was a change made but that
> you
> > > >> have already correctly changed the package version number.
> > > >>
> > > >> HTH,
> > > >> Justin
> > > >>
> > > >> On Thu, Jun 22, 2017 at 10:02 AM Tom Quarendon <
> > > >> tom.quaren...@worldprogramming.com> wrote:
> > > >>
> > > >>> I'm trying to set up api baselining using the maven-bundle-plugin.
> > > >>>
> > > >>> I think I have it set up. I have messages coming out that say it's
> > > >>> doing stuff. So that's good.
> > > >>>
> > > >>> Forgive my confusion though, but I don't understand how it is
> > > >>> supposed to work.
> > > >>> I have published a 1.0.0 version of my bundle to the repository.
> > > >>> I then make an incompatible change to the API, I get:
> > > >>>  Unable to find a previous version of the project in the repository
> > > >>>
> > > >>> If I manually change the version number in my pom to 1.0.1, I then
> > > >>> get errors about my API having changed and it requiring a change in
> > > >>> version number.
> > > >>>
> > > >>> So I don't understand. I only get a baseline check once I've
> > > >>> remembered to change the version number? Surely the point is to
> tell
> > > >>> me that I *need* to change the version number? That's certainly the
> > > >>> support you get in bndtools (being also based on bnd, same as the
> > > >>> maven
> > > >> plugin).
> > > >>>
> > > >>> Have I set it up correctly? Or is this how it's supposed to work?
> > > >>> In the configuration, it looks like the setting comparisonVersion
> is
> > > >>> initialised to (,${project.version}) by default, presumably meaning
> > > >>> "up to and not including ${project.version}".
> > > >>> Changing that to be (,${project.version}] makes it do a comparison,
> > > >>> but produces no errors, presumably because it's comparing the
> bundle
> > > >>> against itself. What I want it to do is compare against the current
> > > >>> latest in the release repository.
> > > >>>
> > > >>> So I'm confused. How do I make it tell me that I need to change my
> > > >>> project version, without first changing my project version?
> > > >>>
> > > >>> Thanks.
> > > >>>
> > > >>
> > > >
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>

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