I left some initial questions and comments in JIRA. I don't care where
you answer them but I would like a little more background before
delving into code. Primarily sample projects to see what you intend.
It's hard to grok entirely from your description.
On 28-Aug-08, at 4:11 PM, Ralph Goers wrote:
I am OK with this.
You may or may not have noticed but I created branch maven-2.1.x-
MNG-624 last night. It contains the fix for MNG-624. I have created
integration tests but haven't committed them yet. I will soon.
Before committing these to the 2.1.x branch I'd really like folks to
try it out.
This change will have a minor impact on existing projects. If you
don't specify the artifact's groupId or versionId (i.e. it is
inherited from the parent) then a new pom.xml should get created in
the target directory that has those fields filled in. That file will
be the one that is installed or deployed.
I'm only trying to resolve the parent version. I could try to
resolve the parent groupId and artifactId and some of the problem
reports mention those but I just couldn't think of a reason why they
shouldn't be specified or why someone would want them in a variable.
The version is obtained by
1. Resolving any variables provided via system properties (variables
from parents won't be found since the parent isn't known.
2. Looking in the file cache for the resolved parent project using
the relative location as the key.
3. Looking for the parent at the relative path on disk.
a. The target directory at the relative path is inspected for a
modified pom.
b. The project at the relative path is used.
If at the end of this a resolved parent version is not located throw
an Exception. Do not try to recurse to further parents.
You'll notice the comment about looking for the modified pom in the
target directory. As part of this fix the parent version, and the
project's artifactId, groupId and version are all interpolated. If
any of those fields were missing or had variables in them in the
original pom then the pom is modified and written to the target
directory. Thus, any pom that is installed or deployed will always
have these fields resolved.
In looking through the plugins it looked to me that the Eclipse and
Invoker plugins are trying to locate the base directory by calling
project.getFile().getParentFile(). These will need to be changed to
project.getBasedir() since the location of the pom might now be in a
different place and project.getFile().getParentFile() might return
the target directory instead of the base directory.
As we agreed Maven 2.1 will require Java 5. The pom has been changed
to reflect that and quite a bit of the new code uses it.
Please test and provide feedback.
Ralph
John Casey wrote:
Hi everyone,
So, it seems that we're all in agreement about the rough outline
for 2.1.x and beyond. I've renamed the current RC branch to be
2.1.0-M1-RC to make this the first milestone toward some as-yet-
undetermined feature list for 2.1.0.
So, let's talk about that feature list. From earlier comments, I've
gathered that the following may be good targets to include for 2.1.0:
- Dan's reactor changes
- Parallel downloads
- PGP stuff
- MNG-624 and related issues/feature enhancements (parent
versioning, right?)
What I don't know is what state of maturity each of these is in,
and on what timeline they can be stabilized. Do the relevant
developers have enough time to finish implementing, testing, and
documenting each feature, so we could get a 2.1.0 GA out in, say 6
weeks or so? Maybe a better approach would be to try for a new
milestone release that contains the final result of each new
feature (with latent parts of the rest, as we work on them), such
that the 2.1.0 GA will contain all the new features in their
complete forms, with any regressions identified fixed and
incorporated?
I haven't found the pertinent Confluence pages describing the above
features yet...maybe they don't exist or maybe I haven't looked
hard enough yet, but we'll need to collect the list somewhere that
we can make it public going forward, and then publish that release
plan URL on the Maven site.
Are there other things that we can fit into this sort of timeframe?
Is this too much? It's my strong preference that we try to cap this
release cycle at two months, so I guess this means taking the list
of "nearly there" features and determining whether we'll have the
time to stabilize them for inclusion, given our current availability.
Of course, once we settle the 2.1.0 release plan, we can start
talking about what we're going to do for 2.2, 2.3, etc. As long as
we keep things rolling, there's no reason anyone needs to feel
overly rushed about getting a particular feature in a particular
release...it should NOT be your only chance. :-)
What does anyone else think?
-john
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Thanks,
Jason
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Jason van Zyl
Founder, Apache Maven
jason at sonatype dot com
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We know what we are, but know not what we may be.
-- Shakespeare
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