Ignore .js and .inv files for diff (#16)

* Delete unnecessary files.

* Actually use action from this branch. Needs to be reverted before merging.

* Add missing tags.

* Add brackets.

* Update actions/ansible-docs-build-diff/action.yml

Co-authored-by: Brian Scholer <1260690+briantist@users.noreply.github.com>

* Revert "Actually use action from this branch. Needs to be reverted before merging."

This reverts commit 56a093b.

Co-authored-by: Brian Scholer <1260690+briantist@users.noreply.github.com>

Author: felixfontein

actions/ansible-docs-build-diff/action.yml

@@ -1,6 +1,9 @@
 ---
 name: Calculate diff output between two Ansible docs builds
-description: Compare two builds of docs (HTML files) and produce diff output.
+description: |
+  Compare two builds of docs (HTML files) and produce diff output.
+
+  Please note that the input directories might be modified, as some files will be deleted.
 inputs:
   build-html-a:
     description: The path to the HTML files (set A).
@@ -75,6 +78,17 @@ outputs:
 runs:
   using: composite
   steps:
+    - name: Delete files that should not be included in the diff
+      id: delete
+      shell: bash
+      run: |
+        echo "::group::Deleting files from ${{ inputs.build-html-a }}"
+        find "${{ inputs.build-html-a }}" \( -name '*.js' -or -name '*.inv' \) -delete -print
+        echo "::endgroup::"
+        echo "::group::Deleting files from ${{ inputs.build-html-b }}"
+        find "${{ inputs.build-html-b }}" \( -name '*.js' -or -name '*.inv' \) -delete -print
+        echo "::endgroup::"
+        
     - name: Create diff
       id: diff
       uses: actions/github-script@v5