Skip to main content
Jump to: navigation, search


This page contains information and documents produced during the "What is In a Build" Symposium at Eclipse Summit Europe 2010.

Many thanks to John Gunnarsson, Purple Scout AB, for producing diagrams.

Use Cases

Primary Use Cases.jpg



Source File

The source of the diagrams is found here:

Target Platform Breakout Session

  • assumption: target platform is used to define the universe for my project
    • especially the .target file
  • .target file format is internal, there is no API and no clear definition about functionality -> makes it difficult for build systems to interpret .target files correctly
  • used for compilation, for running and for testing - but often different target platforms are needed
    • Du we need scoping for dependencies (similar to dependency scopes in maven)?
    • workaround: define multiple target platforms for your project
  • reuse target definitions
  • reference another target definition in my target definition file
    • sort of target fragments (e.g. define target fragment with EMF bundles but without Eclipse platform)
  • Target platform editor insufficient
    • stability
    • support for slicer mode and multiple platforms
    • adding bundles (today, you can only add features)
    • support multiple P2 repos per location (is supported in .target file but not by editor)
    • -> PDE contributions needed
  • multiple target definitions per workspace
    • e.g. per project, per group of projects

Tycho Breakout Session

Some Tycho pain points, in no particular order:

  • How to Release - use tycho versions plugin (with care) ?
  • Product / Application Builds - Pascal says YES (from .product file using eclipse-application mojo) eclipse-application-new-something (still in progress; may be released as new mojo or replace eclipse-application)
  • Source feature/bundles - Pascal says NO, not working. Rumours abound - supposed working for egit source plugins (but can't yet generate source features)
  • pom to manifest synchronization - use tycho versions plugin? Will this need to synch ever go away (that is, pom.xml need not include a <version>
  • documentation is lacking or out of date
  • p2 artifacts in a m2 repo -- not yet doable [b3 aggregator can do a hybrid p2-m2 repo], though SAP has a hackaround to allow this in Nexus
  • no support for remote zipped repos (p2 problem) - again, SAP/Nexus hackaround
  • p2 sucks for network support / proxies / mirrors, so Tycho builds can fail w/o ability to be restarted (like Maven), and sometimes require ~/.m2 cache to be purged to clean out zero-length files pulled from bad mirrors

Copyright © Eclipse Foundation, Inc. All Rights Reserved.