possible to cancel previous workflows only when a specific job has not been started?

[cwolf24]

We have a deploy workflow including tests after the build-main job and some stuff that happens before the build-main job.
My question is: can we cancel previous workflows only when the build-main job (in current running workflow) has not been started yet OR the build-main job has been finished?

example:

jobs:
  prepare:
     # do some preparation; workflow can be skipped

  build-main:
     needs:
        - prepare
     # do NOT skip workflow when build-main is running...

  run-tests:
     needs:
        - build-main
     # run tests; workflow can be skipped

[styfle]

I believe this was solved with the only_status: 'waiting' option

• Add option only_status #210