travis_after_all

This is travis helper to run particular work only once in matrix.

This is workaround for: travis-ci/travis-ci#929

The main goal of this script to have single publishing when build have several jobs. Currently first job is a leader, meaning a node who will mostly do publishing.

Existing .travis.yml show how to ensure that all_succeeded or all_failed

#...
script:
  - curl -o travis_after_all.py https://raw.github.com/dmakhno/travis_after_all/master/travis_after_all.py
after_success:
  - python travis_after_all.py
  - export $(cat .to_export_back)
  - |
      if [ "$BUILD_LEADER" = "YES" ]; then
        if [ "$BUILD_AGGREGATE_STATUS" = "others_succeeded" ]; then
          echo "All Succeded! PUBLISHING..."
        else
          echo "Some Failed"
        fi
      fi
after_failure:
  - python travis_after_all.py
  - export $(cat .to_export_back)
  - |
      if [ "$BUILD_LEADER" = "YES" ]; then
        if [ "$BUILD_AGGREGATE_STATUS" = "others_failed" ]; then
          echo "All Failed"
        else
          echo "Some Failed"
        fi
      fi
after_script:
  - echo leader=$BUILD_LEADER status=$BUILD_AGGREGATE_STATUS

Limitations/Todo

• If other jobs will start late, can be global build timeout. (Think of passing leader role to others, for example who started last is the leader)
• More flexible leader defenition (In Matrix not all jobs can publish)
• Have several leaders, according to flavours (E.g. if in Matrix slices responsible for platform)