GH actions: Get commit message in a PR

get-commit.yml

name: Notify on Pull Request

on:
  pull_request:
    branches: [dev]

jobs:
  send_notification:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout
        uses: actions/checkout@v2
        with:
          fetch-depth: 0
          ref: ${{github.event.after}}
      - name: Get Commit Message
        run: |
          MSG=$(git log --format=%B -n 1 ${{github.event.after}})
          echo "::set-env name=COMMIT_MESSAGE::${MSG}"
      - name: Echo commit message
        run: echo "Commit SHA: ${{github.event.after}}, commit message: ${{env.COMMIT_MESSAGE}} (or ${COMMIT_MESSAGE})"

Just btw you can use
${{ github.event.head_commit.message }}
instead of
https://gist.github.com/ffflorian/71de2e72a3788fbc63fa5ead8e3b5fde#file-get-commit-yml-L19

@Ismoh github.event.head_commit.message is not exposed in PRs.

Ah yea makes sense. I used it on push. Thanks for pointing out. My bad!

As ::set-env is now deprecated you can fiddle around with envs or define outputs to manage it.

As ::set-env is now deprecated you can fiddle around with envs or define outputs to manage it.

Thanks so much 👍

In case someone landed here for a quick solution. The ${{ github.event.head_commit.message }} is still working fine. FYI.

@neotan no, it doesn't work in PR events as mentioned above (only push). I came here because it doesn't work in PR events.

@neotan no, it doesn't work in PR events as mentioned above (only push).

ah, my bad! Overlooked the mentions above, ya it works in pushing. Thanks for pointing out!

This thread helped me get where I needed to go!