collaborator_conflicts.yml

# This workflow will be run when an issue labeled "trigger-conflict" is closed.

name: Collaborator causes conflict

# Trigger a workflow for a closed issue
on:
  issues:
    types: [closed]

jobs:
  
  # This job builds if the issue closure is labeled trigger-conflict
  build_if_conflict:
    # The type of runner that the job will run on
    runs-on: ubuntu-latest

    # Only run the job if the closed issue has the label "trigger-conflict"
    # Idea borrowed from: https://github.community/t5/GitHub-Actions/Do-something-if-a-particular-label-is-set/td-p/40712
    if: contains(github.event.issue.labels.*.name, 'trigger-conflict' )
    
    # Steps represent a sequence of tasks that will be executed as part of the job
    steps:
      
      # Seems like you need this first for all actions ...
      - name: Checkout repository
        uses: actions/checkout@v1
    
      # Add the next story section to the file
      # Purposely skip section & forget hyperlink
      - name: Update dryville_story.md
        run: |
          function file_ends_with_newline() {
            [[ $(tail -c1 "$1" | wc -l) -gt 0 ]]
          }
          
          if ! file_ends_with_newline ./dryville_story.md
          then
              echo "" >> ./dryville_story.md
          fi

          cat ./.github/commit_content/storing_water.md >> ./dryville_story.md
      
      # Updating a file uses the GitHub action, https://github.com/marketplace/actions/update-files-on-github
      - name: Commit updates to dryville_story.md
        uses: test-room-7/action-update-file@v1
        with:
          file-path: dryville_story.md
          commit-msg: add storing-water section
          github-token: ${{ secrets.GITHUB_TOKEN }}

  # Idea from https://github.community/t5/GitHub-Actions/Workflow-is-failing-if-no-job-can-be-ran-due-to-condition/td-p/38085
  always_job:
    name: Always run job
    runs-on: ubuntu-latest
    steps:
      - name: Always run
        run: echo "This job is used to prevent the worflow status from showing failed if the build_if_collab job is skipped."