Re: [cross-project-issues-dev] Eclipse Platform to prefer use of depende

[Ed Merks <ed.merks@xxxxxxxxx>]

Christoph,

Comments below.

On 06.04.2022 06:55, Christoph Läubrich wrote:
> > Might this approach be a problem for projects with very
> > low Java target level?
>
> Is this relevant given that platform already requires Java 11?

This is similar to asking if JDT's compiler stopped supporting Java 11 
is relevant?   Yes, because not everyone is building with the latest 
platform.  I have builds like this:

  https://ci.eclipse.org/emf/job/all-target-platforms/

This thing tests really old crap and uses Tycho do the builds and run 
the tests.

To generalize, of course it's relevant that a build system is able to 
respect the compiler levels and BREEs of the projects being compiled.  
The current Platform is not the center of the universe.

> > would be required to use a recent version of Tycho, but that might not
> > support building the old Java EE levels anymore.
>
> New features require new version correct, but it should not be an 
> issue see above, anyways I'm currently working in fixing a bug [1] for 
> compiling java 8 with and tycho has a integration-test for compiling 
> with an java 8 jdk so if 'old Java EE levels' not means JSE1.4 or 
> something...
>
> > Also everyone using the Target Platform Definition language *.tpd
> > might be out, since that tooling cannot generate the new syntax
> > I believe.
>
> There is an open issue  [2]for that but it has not gotten much 
> attention yet.
>
> > but if you have ever managed targets with 1500 plugins you really
> > don't want to go back from such a component based approach, towards
> > a single file
>
> From 2022-03 on PDE supports references of other target files [3], so 
> you could either use this directly, or have one "main" target with 
> maven deps, that includes another that is generated by the TPD files.
>
>
> [1] https://github.com/eclipse/tycho/issues/51
> [2] https://github.com/eclipse-cbi/targetplatform-dsl/issues/115
> [3] https://www.eclipse.org/eclipse/news/4.23/pde.php#pde-editor-include
>
>
> Am 05.04.22 um 20:46 schrieb Michael Keppler:
> > Might this approach be a problem for projects with very low Java target
> > level? From my understanding, to be able to use that mechanism they
> > would be required to use a recent version of Tycho, but that might not
> > support building the old Java EE levels anymore.
> >
> > Also everyone using the Target Platform Definition language *.tpd might
> > be out, since that tooling cannot generate the new syntax I believe.
> > https://github.com/eclipse-cbi/targetplatform-dsl. Of course everyone
> > using TPD can just maintain .target files instead, but if you have ever
> > managed targets with 1500 plugins, you really don't want to go back from
> > such a component based approach, towards a single file, without comments
> > etc.
> >
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