how to make sure snapshots are rebuilt properly on a need-to-be basis us

Hello,

This is my first email to the list and I am new to maven, so pardon me if
missed the solution to the problem I am envisioning – any help or idea how
it can be solved would be greatly appreciated. Also, I am sorry about the
lengh of the email as I am trying to illustrate the problem as detailed as I
can,

Lets say, I have

artifacts: webapp, webutil, util, common. – all these components are in
active development.

webapp depends on webutil, util, common

webutil depends on util, common

util depends on common.

The goal is to make sure that snapshots are updated properly recursively
when change happens to a certain snapshot. And all pieces of the application
are using same versions of snapshots.

To make sure every artifact depends on same version of dependencies, parent
pom.xml will have
dependencyManagement>

<dependencies>

<dependency>

<!-3rd party ->

<groupId>commons-logging</groupId>

<artifactId>commons-logging</artifactId>

<version>1.0.4</version>

</dependency>

<!-internal->

<groupId>company.com</groupId>

<artifactId>webutil</artifactId>

<version>1.0.0-SNAPSHOT</version>

<groupId>company.com</groupId>

<artifactId>util</artifactId>

<version>1.0.0-SNAPSHOT</version>

<groupId>company.com</groupId>

<artifactId>common</artifactId>

<version>1.0.0-SNAPSHOT</version>

</dependencyManagement>

to make sure that snapshots are build using controlled environment, lets say
continuum is used to build them. So, my questions are:
 

Will continuum rebuild ALL snapshots every time it makes a build? (hourly,
per say).

a) If “yes”, how does it know the order in which snapshots in which it have
to be generated? (common first, util, webutil, webapp) – the order is very
important since if there is a change in common, util has to be compiled
against latest common classes.

Also, it seems to me that repository will get filled up very quickly with
identical snapshots for same component and each developer’s machine would
have to sync new snapshots every time it checks with repository

      b)If continuum is smart enough to create new snapshot only when there
has been code changes in src of particular module, does it know that
snapshots depending on that module have to be regenerated also?

3. if continuum does not have the answer for the problem/questions to 2. can
someone recommend the alternative solution/intergration server that would
ensure that snapshots are being incrementally deployed only when and in the
right dependency order? (if change has been done in util module there is no
need to redeploy common snapshot but there is a need to redeploy webutil
once util snapshot is ready)

Thanks

Leonard

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