[jbosstools-dev] Update manifest.mf file for nested dependencies against juno

[Rob Stryker]

It's possible it has to do with that it is optional, but this is still a 
change for us as developers. it was optional in Indigo and the build 
then still worked just fine. It is still optional in Juno, but now the 
build craps out. So it's still something to pay attention to.

On 04/17/2012 07:10 AM, Rob Cernich wrote:
> Upon closer inspection, in Indigo at least, org.eclipse.ui.views is an _optional_ dependency of org.eclipse.ui.ide.  Given that, do you think this problem may be related to the fact that the imported dependency is optional?
>
> Best,
> Rob
>
> ----- Original Message -----
>> Hi All:
>>
>> I've added a section to this wiki page
>> (https://community.jboss.org/wiki/HowToBuildJBossToolsWithMaven3#Tips_and_tricks_for_making_BOTH_PDE_UI_and_headless_Maven_builds_happy)
>> describing the issue, but, to summarize it, all compile time
>> dependencies must now be explicitly declared in your manifest.mf if
>> you
>> expect your plugin to build against juno.
>>
>> While investigating /JBIDE-11545, we discovered archives.ui built
>> fine
>> against indigo, but failed against juno. The reason was that
>> archives.ui
>> had a compile-time dependency on org.eclipse.ui.views, but the
>> manifest.mf did not declare this dependency. The dependency was
>> resolved
>> fine in the past because archives.ui depended on org.eclipse.ui.ide,
>> and
>> org.eclipse.ui.ide depended on org.eclipse.ui.views.
>>
>> It seems tycho will no longer resolve nested dependencies. If you
>> have a
>> compile time dependency on a plugin or bundle, you must declare it
>> explicitly in your manifest.mf. You can no longer trust that tycho
>> will
>> be able to resolve these nested dependencies and provide all
>> available
>> plugins at build time.
>>
>> This will be a huge pain for some people.  I know in my dev style, I
>> just try to implement an interface, and, if eclipse does not resolve
>> it,
>> then I add it to manifest.mf.  It seems to me that doing so now will
>> maybe cause errors and broken builds for devs who do not build
>> locally
>> before every commit. If for example you try to implement an
>> interface,
>> and eclipse does not complain, it is likely that a plugin you already
>> depend on also provides you access to the interface you are seeking.
>> But
>> when building in tycho against juno, this plugin won't be found.
>>
>> So update those manifest.mf files, and if you haven't been building
>> locally for every commit, start doing it, at least for compilation.
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>>