weekly_reduceimagesize.yml

# Compress images on demand (workflow_dispatch), and at 11pm every Sunday (schedule).
# Open a Pull Request if any images can be compressed.
---
name: Compress Images
on:
  workflow_dispatch:
  schedule:
    - cron: '00 23 * * 0'

jobs:
  calibre:
    if: github.repository_owner == 'alexbelgium'
    name: calibreapp/image-actions
    runs-on: ubuntu-latest
    steps:
      - name: Checkout Repo
        uses: actions/checkout@v4

      - name: Compress Images
        id: calibre
        uses: calibreapp/image-actions@main
        with:
          # The `GITHUB_TOKEN` is automatically generated by GitHub and scoped only to the repository that is currently running the action. By default, the action can’t update Pull Requests initiated from forked repositories.
          # See https://docs.github.com/en/actions/reference/authentication-in-a-workflow and https://help.github.com/en/articles/virtual-environments-for-github-actions#token-permissions
          githubToken: ${{ secrets.GITHUB_TOKEN }}
          compressOnly: true
          jpegQuality: '60'
          jpegProgressive: false
          pngQuality: '60'
          webpQuality: '60'

      - name: Commit if needed
        if: steps.calibre.outputs.markdown != ''
        uses: EndBug/add-and-commit@v9
        with:
          message: "Github bot : image compressed"
          default_author: github_actions
          body: ${{ steps.calibre.outputs.markdown }}