On 15/06/2012 4:43 AM, Chris Beach wrote:
I have two projects as follows, in neighbouring directories on the filesystem:
* project_a (-SNAPSHOT)
* project_b (-SNAPSHOT, depends on project_a)
I'd like to build project_b and for Maven to discover that project_a exists on
the filesystem and thus build it rather than look in the local repo for its
artifact.
Why.?
This means that:
- you are stuck as a 1 man shop,
- you need to keep all of your projects active at once
- you will have trouble figuring out what is finished.
The "Best Practice" is to:
- have a Maven repo - Nexus or another, where Maven looks for its artifacts,
- have a SCM - Subversion or some other, where you keep source code with
proper source version control
- have an IDE - Eclipse STS or some other, where you checkout code from
your SCM, produce artifacts that are tested and then deployed to your
repo, checkin your code to your SCM and ,if you are finished with that
module, deleted from your IDE or at least closed.
- declare your dependencies in your POMs and if you need aggregation
POMs to group utilities or core functions, do that. This is a one-time
investment in productivity enhancement that makes life better.
We have roughly 70 modules making webapps, web services and batch jobs
and 10 libraries that group third party and internal utilities for us.
We use Eclipse STS, Maven, Subversion and Nexus and the environment is
very easy to use, well organized and controlled.
If you don't want to do it "right", Eclipse STS will allow you to
resolve Maven artifacts from your workspace and do roughly what you seem
to want.
Ron
I could build these within an aggregator and use the reactor to select
project_b i.e.
mvn --projects project_b [goal]
However, this is problematic because
* this two-project example is a simplification of my real build, which consists
of dozens of projects, and I don't want to have to maintain an aggregator
project that lists all of them.
* I only want to recursively build -SNAPSHOT dependencies
Is there a neat way I could get Maven to perform a recursive build that looks
on the filesystem to find -SNAPSHOT dependency projects and builds them?
I'm familiar with Maven plugin development, but haven't yet found any clues
toward a solution in the Maven / Aether documentation.
Chris Beach
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