check-for-updates.yml

name: Check for data source updates

on:
  workflow_dispatch:
  schedule:
    - cron: "0 13 * * *"

jobs:
  check-for-updates:
    name: Check for updates
    runs-on: ubuntu-latest
    container: ghcr.io/osgeo/gdal:ubuntu-full-3.9.1
    concurrency: check-for-data-source-updates
    timeout-minutes: 30
    permissions:
      contents: read
    outputs:
      diff: ${{ steps.comparison.outputs.diff }}
    steps:
      - name: Install csvkit
        run: apt-get update && apt-get install -y csvkit

      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Create GeoPackage
        run: chmod +x create-geopackage.sh && ./create-geopackage.sh

      - name: Upload data-source-checksums.txt artifact
        uses: actions/upload-artifact@v4
        with:
          name: data-source-checksums.txt
          path: data-sources/data-source-checksums.txt
          if-no-files-found: error

      - name: Upload GeoPackage artifact
        uses: actions/upload-artifact@v4
        with:
          name: boundaries-4326.gpkg
          path: boundaries-4326.gpkg
          if-no-files-found: error

      - name: Download latest data source hashes
        run: wget -O published-data-source-checksums.txt "https://github.com/govlt/national-boundaries/releases/latest/download/data-source-checksums.txt"

      - name: Upload published-data-source-checksums.txt artifact
        uses: actions/upload-artifact@v4
        with:
          name: published-data-source-checksums.txt
          path: published-data-source-checksums.txt
          if-no-files-found: error

      - name: Check that the files are the exact same
        id: comparison
        run: |
          { 
            echo 'diff<<EOF'
            (diff -u 'published-data-source-checksums.txt' 'data-sources/data-source-checksums.txt' || :)
            echo 'EOF'
          } >> "${GITHUB_OUTPUT}"

  create-release:
    name: Create release
    if: ${{ needs.check-for-updates.outputs.diff != '' }}
    runs-on: ubuntu-latest
    concurrency: check-for-data-source-updates-create-release
    needs:
      - check-for-updates
    permissions:
      contents: read
    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Get Token for creating new Release
        id: get_workflow_token
        uses: peter-murray/workflow-application-token-action@v3
        with:
          application_id: ${{ secrets.APPLICATION_ID }}
          application_private_key: ${{ secrets.APPLICATION_PRIVATE_KEY }}
          permissions: "contents:write"
          revoke_token: true

      - name: Get next version
        uses: reecetech/version-increment@2024.4.4
        id: version
        with:
          scheme: calver

      - name: Release
        uses: softprops/action-gh-release@v2
        with:
          make_latest: false
          tag_name: ${{ steps.version.outputs.version }}
          token: ${{ steps.get_workflow_token.outputs.token }}
          body: |
            Automated release after data source update
            
            ```
            ${{ needs.check-for-updates.outputs.diff }}
            ```