codefresh-actions.yaml

version: '1.0'
steps:
  # ID of the pipeline we want to trigger.
  # Transforms output of "env", to a single YAML map array item, formatted as
  # expected by codefresh CLI "run" command's "--var-file" option.
  # Example:
  # - FOO: "bar"
  #   BAZ: "qux"
  #   QUUX: "corge"
  #
  # PROCEED WITH CAUTION. As I found out the hard way, the "--var-file" option
  # does not validate YAML-parsing a data structure matching it's expectated
  # data format. For example, a textfile containing 1300 characters (a Pull
  # Request triggered automated build's "env" output) rapidly spawned 1300
  # builds!
  # Attempting a quick remedy, I wrote a quick script to terminate all the build
  # IDs from STDOUT before I cancelled the command:
  # `while IFS= read -r line; do codefresh terminate "$line"; done < COPYBUFFER`
  # However, the "run" command appears to run to completion even if the CLI
  # process is manually exited midway - which I did - so there were 1000 builds
  # in queue with IDs I could not access in order to script bulk termination.
  # Unfortunately "codefresh get builds -o id" only returns the latest 25
  # results so that didn't get IDs between the first 25 and those from initial
  # "run" STDOUT. Similarly, the Codefresh API at
  # https://g.codefresh.io/api/#!/builds/getAll returned 0 results. In the end,
  # I could have only manually stopped the builds using the Codefresh UI to
  # unblock new builds (personally I didn't want to click 1300 times across 130
  # pages, so I waited until all builds were finished before new builds were
  # unblocked).
  # The issue has been reported to Codefresh as high-priority, and this comment
  # can be removed once that issue is fixed.
  FilterBuildsByPRAction:
    title: Trigger
    image: codefresh/cli:latest
    commands:
      - codefresh auth create-context --api-key ${{API_KEY}}
      - env | sed -e 's/=/:\ "/' -e 's/$/"/g' -e '1 s/^/- /' -e '1! s/^/  /' > var_file.yml
      - cat var_file.yml
      - codefresh run ${PIPELINE_ID} -b=${CF_BRANCH} --var-file ./var_file.yml
    when:
      condition:
        any:
          prActionClosed: '"${{CF_PULL_REQUEST_ACTION}}" == "closed"'
          prActionOpened: '"${{CF_PULL_REQUEST_ACTION}}" == "opened"'
          prActionReopened: '"${{CF_PULL_REQUEST_ACTION}}" == "reopened"'
          prActionSynchronized: '"${{CF_PULL_REQUEST_ACTION}}" == "synchronize"'