build.yml

name: Build workflow-testing

on:
  push:
    branches:
      - "**"
    tags:
      - 'v[0-9]+.[0-9]+.[0-9]+'
  schedule:
    - cron:  '*/5 * * * *'

  pull_request:
  workflow_dispatch:

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

jobs:
  trigger:
    # store trigger reason
    runs-on: ubuntu-latest
    outputs:
      is_release: ${{ steps.reason.outputs.is_release }}
      is_push_on_default_branch: ${{ steps.reason.outputs.is_push_on_default_branch }}
      is_schedule: ${{ steps.reason.outputs.is_schedule }}
    steps:
      - id: reason
        run: |
          echo "is_release=${{ startsWith(github.ref, 'refs/tags/v') }}" >> $GITHUB_OUTPUT
          echo "is_push_on_default_branch=${{ (github.event_name == 'push') && (github.ref == format('refs/heads/{0}', github.event.repository.default_branch)) }}" >> $GITHUB_OUTPUT
          echo "is_schedule="${{ github.event_name == 'schedule' }} >> $GITHUB_OUTPUT

  display-trigger:
    needs: trigger
    runs-on: ubuntu-latest
    steps:
      - run: |
          echo is_release=${{ needs.trigger.is_release }}
          echo is_push_on_default_branch=${{ needs.trigger.is_push_on_default_branch }}
          echo is_schedule=${{ needs.trigger.is_schedule }}

  only-on-master:
    needs: [trigger]
    runs-on: ubuntu-latest
    if: needs.trigger.outputs.is_push_on_default_branch == 'true'
    outputs:
      notebooks-branch: ${{ steps.write-output.outputs.notebooks_branch }}
    steps:
     - id:  write-output
       run: |
         echo "yo"
         echo "notebooks_branch=toto" >> $GITHUB_OUTPUT

  on-all-branches:
    needs: only-on-master
    runs-on: ubuntu-latest
    if: always()
    steps:
      - run: echo yo ${{ needs.only-on-master.outputs.notebooks-branch }}