How to give Github Action the content of a file as input?

Question

I have a workflow with an action that creates a version number when building an artefact. This version number is written to file.

How can I give that as an input to another action?

I.e: How can I use this version number as part of a commit message in another action?

Answer 1

It is possible to use the filesystem to communicate between actions. But if you have input on 3rd party actions, you need to give this from the outputs of another action

Ie. you need to read this file in your action and present it as output in your action.yml. Then you can use this output as input to another action in your workflow.yaml