upstream_update.yml

name: Check development branch accounts for upstream updates

on:
  schedule:
    - cron: '5 * * * *' # every hour, 5 mins past the hour
  workflow_dispatch: # manual trigger

env:
  ROOT: "main"
  SCION: "dev"

jobs:
  check_branches:
    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v4
      with:
        fetch-depth: 0 # necessary to access all commits
        ref: ${{ env.SCION }}
    - run: git fetch origin
    - name: Check if SCION is an extension of ROOT
      id: check
      run: |
        ROOT_COMMIT=$(git rev-parse origin/${{ env.ROOT }})
        SCION_COMMIT=$(git rev-parse HEAD)
        if git merge-base --is-ancestor $ROOT_COMMIT HEAD; then
          echo "status=true" >> $GITHUB_ENV
          echo "message=$SCION is rebased on $ROOT as of $SCION_COMMIT" >> $GITHUB_ENV
        else
          echo "status=false" >> $GITHUB_ENV
          echo "message=$SCION at $SCION_COMMIT does not include $ROOT at $ROOT_COMMIT" >> $GITHUB_ENV
        fi
      shell: bash

    - name: Find the last report issue open
      id: last_issue
      uses: micalevisk/last-issue-action@v2
      with:
        state: open
        labels: |
          upstream
          automated issue
      env:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

    - name: Debug
      run: |
        echo ${{ env.status }}
        echo ${{ env.message }}
        echo ${{ steps.last_issue.outputs.has-found }}
        echo ${{ steps.last_issue.outputs.issue-number }}

    - name: Close last report open issue
      if: env.status == 'true' && steps.last_issue.outputs.has-found == 'true'
      uses: peter-evans/close-issue@v3
      with:
        issue-number: ${{ steps.last_issue.outputs.issue-number }}
        comment: ${{ env.message }}

    - name: Update last report open issue
      if: env.status == 'false' && steps.last_issue.outputs.has-found == 'true'
      uses: peter-evans/create-or-update-comment@v4
      with:
        issue-number: ${{ steps.last_issue.outputs.issue-number }}
        body: ${{ env.message }}
        edit-mode: replace

    - name: Create file for issue
      if: env.status == 'false' && steps.last_issue.outputs.has-found == 'false'
      run: echo "${{ env.message }}" > ./_body.md

    - name: Create issue from report
      if: env.status == 'false' && steps.last_issue.outputs.has-found == 'false'
      uses: peter-evans/create-issue-from-file@v5
      with:
        title: ${{ env.SCION }} needs to be rebased on ${{ env.ROOT }}
        content-filepath: ./_body.md
        assignees: huitseeker
        labels: |
          upstream
          automated issue