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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.
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Github actions can only trigger on master or the default branch.
To run jobs sequentially, you can define dependencies on other jobs using the jobs. <job_id>. needs keyword. Each job runs in a runner environment specified by runs-on .
A matrix strategy lets you use variables in a single job definition to automatically create multiple job runs that are based on the combinations of the variables. For example, you can use a matrix strategy to test your code in multiple versions of a language or on multiple operating systems.
Update: There is a newer filter described in Samy's answer that provides a more succinct way of achieving this.
The documentation has been updated with more information now:
When you specify a
branchesortagsfilter, 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:
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 There is now a branches-ignore option:
on: push: branches-ignore: - master https://docs.github.com/en/actions/reference/workflow-syntax-for-github-actions#onpushpull_requestbranchestags
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