workflow_dispatch.yml

name: workflow_dispatch
on:
  workflow_dispatch:
    inputs:
      commit-sha:
        description: 'the commit sha to redeploy'
        required: false
  pull_request:
    types:
      - opened
      - synchronize

jobs:
  check-commit:
    runs-on: ubuntu-latest
    outputs:
      commit: ${{ steps.setCommit.outputs.result }}
    steps:
      - name: set commit
        id: setCommit
        uses: actions/github-script@v5
        with:
          script: |
            if (context.payload.inputs && context.payload.inputs.commit-sha) {
              return context.payload.inputs.commit-sha
            }
            const { data: { workflow_runs }} = await github.rest.actions.listWorkflowRuns({
              owner: 'ebk45',
              repo: 'github-actions',
              workflow_id: 'cd-workflow.yml',
              status: 'success',
              exclude_pull_requests: true
            });
            console.log(workflow_runs[0])
            const latestSuccessfulCommit = workflow_runs[0].head_sha;
            console.log({latestSuccessfulCommit})
            return latestSuccessfulCommit
          result-encoding: string
  
  redeploy-preview:
    needs: check-commit
    runs-on: ubuntu-latest
    steps:
      - name: check commit
        run: echo "${{ needs.check-commit.outputs.commit }}"