CheckForNewRelease.yml

name: Check for New Release

# c.f. https://stackoverflow.com/a/77002385

on:
  # schedule:
  #  - cron: '0 0 * * *'
  workflow_dispatch:

env:
  REMOTE_USER: torakiki
  REMOTE_REPO: pdfsam

jobs:
  check:
    runs-on: ubuntu-latest

    steps:

      - name: Get latest remote release
        id: get_remote_release
        run: |
          # Fetch release information and extract the release tag
          REMOTE_RELEASE_TAG=$(curl -s https://api.github.com/repos/$REMOTE_USER/$REMOTE_REPO/releases/latest | jq -r '.tag_name')
          echo "remote_release_tag=$REMOTE_RELEASE_TAG" >> $GITHUB_OUTPUT
          echo "latest remote release: $REMOTE_RELEASE_TAG"

      - name: Get latest local release
        id: get_local_release
        run: |
          # Fetch release information and extract the release tag
          LOCAL_RELEASE_TAG=$(curl -s https://api.github.com/repos/$GITHUB_ACTION_REPOSITORY/releases/latest | jq -r '.tag_name')
          echo "local_release_tag=$LOCAL_RELEASE_TAG" >> $GITHUB_OUTPUT
          echo "latest local release: $LOCAL_RELEASE_TAG"

      
      - name: Compare releases
        id: compare_releases
        run: |
          # Read the release info from the downloaded artifact
          PREVIOUS_RELEASE=$(cat xyz-release-info 2> /dev/null || echo "NONE")
          echo "previous release: $PREVIOUS_RELEASE"

          # Compare the fetched release tag with the previous release tag
          if [ "${{ steps.get_remote_release.outputs.REMOTE_RELEASE_TAG }}" != "${{ steps.get_local_release.outputs.LOCAL_RELEASE_TAG }}" ]; then
            echo "release_changed=true" >> $GITHUB_OUTPUT
            echo "Release changed: true"
          else
            echo "release_changed=false" >> $GITHUB_OUTPUT
            echo "Release changed: false"
          fi

#      - name: Call workflow to build code
#        if: steps.compare_release.outputs.release_changed == 'true'
#        uses: benc-uk/workflow-dispatch@v1
#        with:
#          workflow: publish.yml