Find and ignore symlinked path in compression GitHub Actions (#53)

* Find and ignore symlinked path in compression GitHub Actions

* Adding a test icon to trigger compression action

* Add small debug statement to find out if the variable is working

* Add wildcard glob to each path

* Improve debug ouput

* Remove test icon again

* Add test icon again, need to compress all existing images

* Optimised images with calibre/image-actions

* Remove test icon again

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

.github/workflows/compress.yml

@@ -12,7 +12,14 @@ jobs:
     steps:
       - name: Checkout repository
         uses: actions/checkout@v2
+      - name: Find symlinked paths to ignore
+        id: find
+        run: >-
+          echo "::set-output name=ignore::$(find -L src -xtype l -type d | sed -e 's#$#/**#' | head -c -1 | tr '\n' ',')"
+      - name: Check ignored paths
+        run: echo ${{ steps.find.outputs.ignore }} | tr ',' '\n'
       - name: Compress Images
         uses: calibreapp/image-actions@master
         with:
+          ignorePaths: ${{ steps.find.outputs.ignore }}
           githubToken: ${{ secrets.GITHUB_TOKEN }}