slash-command-dispatch.yml

# a workflow that runs when a user enters a pull request comment
# if the user enters "/cypress" we trigger the workflow "slash-command-cypress"
name: Slash Command Dispatch

on:
  issue_comment:
    types: [created]

jobs:
  slash_command_dispatch:
    runs-on: ubuntu-latest
    steps:
      - name: Print event 🖨️
        run: |
          echo off
          echo '${{ toJson(github.event) }}'

      # we only know the pull request number, like 12, 20, etc
      # but to trigger the workflow we need the branch name
      # use personal token to be able to query the branch by PR number
      # https://github.com/bahmutov/get-branch-name-by-pr
      - name: Find the PR branch name 🔎
        uses: bahmutov/get-branch-name-by-pr@v1
        id: pr
        with:
          repo-token: ${{ secrets.PERSONAL_TOKEN }}
          pr-id: ${{ github.event.issue.number }}

      - name: Slash Command Dispatch
        # https://github.com/peter-evans/slash-command-dispatch
        uses: peter-evans/slash-command-dispatch@v3
        with:
          # use personal token to be able to trigger more workflows
          token: ${{ secrets.PERSONAL_TOKEN }}
          # the personal token to post the comment emoji
          reaction-token: ${{ secrets.PERSONAL_TOKEN }}
          permission: none
          static-args: |
            repository=${{ github.repository }}
            comment-id=${{ github.event.comment.id }}
            ref=${{ steps.pr.outputs.branch }}
          commands: |
            cypress