How does Tycho bind its goals to the Maven lifecycle -

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i didn't understand how tycho bound maven lifecyle did not see pom.xml configuration binds tycho goals.

my questions are:

  1. how tycho hook maven's building reactor stage, i.e. when prints below messages before reactor computed?

    [exec] [warning] no explicit target runtime environment configuration. build platform dependent.

  2. how tycho bind goals maven's build lifecycle? see there goals executed during build not configured in pom.xml:

     [exec] [info] --- target-platform-configuration:0.21.0:target-platform (default-target-platform) @ xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx ---  [exec] [info]   [exec] [info] --- tycho-packaging-plugin:0.21.0:package-feature (default-package-feature) @ xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx ---

tycho using maven lifecycle hooks dependency resolution before actual reactor build starts. these lifecycle hooks available maven build extension , iirc tycho 1 of reasons introduced in maven 3.0.

tycho's implementation of lifecycle hook in class tychomavenlifecycleparticipant.

the goals being executed during normal reactor build selected via packaging type. when e.g. set packaging eclipse-feature in project, set of goals, defined tycho, executed.

you can see exact mapping of goals maven lifecycle phases defined in this component.xml file in tycho sources.


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