GitHub Actions: how to target all branches EXCEPT master?

问题

I want to be able to let an action run on any given branch except master. I am aware that there is a prebuilt filter action, but I want the exact opposite.

More like GitLab's except keyword. Since this is not inside the official docs, has anyone prepared a decent workaround?

Thank you very much.

回答1:

The documentation has been updated with more information now:

When you specify a branches or tags filter, the workflow only runs if at least one pattern matches. Any changes to branches or tags that don't match a defined pattern will not trigger a workflow. The order that you define patterns matters:

• A matching negative pattern after a positive match will exclude the ref again.
• A matching positive pattern after a negative match will include the ref again.

So in order to exclude master, you need to ensure that a pattern matching everything is included first:

on:
  push:
    branches:    
      - '*'         # matches every branch that doesn't contain a '/'
      - '*/*'       # matches every branch containing a single '/'
      - '**'        # matches every branch
      - '!master'   # excludes master

回答2:

It seems like this can be used: https://github.com/actions/bin/tree/master/filter#not

来源：https://stackoverflow.com/questions/57699839/github-actions-how-to-target-all-branches-except-master