Make sure sidebar toc on print page HTML also respects TOC depth para…

…meter

mkdocs_print_site_plugin/renderer.py

@@ -180,9 +180,26 @@ def get_toc_sidebar(self) -> TableOfContents:
                         toc_link = update_toc_item(page_key, toc_link)
                         toc += [toc_link]
 
+        # Make sure the sidebar ToC also respects
+        # the plugin's toc_depth parameter
+        toc = clear_children_up_to(self.plugin_config.get("toc_depth"), toc)
+
         return TableOfContents(toc)
 
 
+def clear_children_up_to(depth, items):
+    """
+    Filters items in sidebar table of contents to a given depth.
+    """
+    for toc_item in items:
+        # note the -1 is there because of the hack on levels in update_toc_item()
+        if toc_item.level == depth - 1:
+            toc_item.children = []
+        else:
+            toc_item.children = clear_children_up_to(depth, toc_item.children)
+    return items
+
+
 def update_toc_item(page_key: str, toc_link: AnchorLink) -> AnchorLink:
     """
     Updates a AnchorItem to work on the print page.

tests/fixtures/projects/basic/mkdocs_toc_depth.yml

@@ -0,0 +1,6 @@
+site_name: Test
+
+plugins:
+    - print-site:
+        toc_depth: 1
+