Also parse source HTML tags for files to copy

src/mkslides/markupgenerator.py

@@ -423,6 +423,10 @@ def __find_all_links(self, markdown_content: str) -> set[str]:
             if not link.find_parents(["code", "pre"]):
                 found_links.add(link["src"])
 
+        for link in soup.find_all("source", src=True):
+            if not link.find_parents(["code", "pre"]):
+                found_links.add(link["src"])
+
         for comment in soup.find_all(string=lambda text: isinstance(text, Comment)):
             if match := HTML_BACKGROUND_IMAGE_REGEX.search(comment):
                 found_links.add(match.group("location"))

tests/test_base.py

@@ -7,6 +7,9 @@
     run_build_with_custom_input,
 )
 
+# The output can be seen manually by running the following command:
+#   poetry run mkslides build tests/test_files
+
 
 def test_process_directory_without_config(setup_paths: Any) -> None:
     cwd, output_path = setup_paths
@@ -35,6 +38,7 @@ def test_process_directory_without_config(setup_paths: Any) -> None:
             "test-1.txt",
             "test-2.txt",
             "test-(3).txt",
+            "video/demo.webm",
         ],
     )
 
@@ -79,6 +83,7 @@ def test_process_file_without_config(setup_paths: Any) -> None:
             "test-1.txt",
             "test-2.txt",
             "test-(3).txt",
+            "video/demo.webm",
         ],
     )
 

tests/test_files/someslides.md

@@ -151,3 +151,12 @@ This should not throw an error:
 @
 
 ---
+
+## Video
+
+<video controls preload="metadata">
+    <source src="./video/demo.webm" type="video/webm"/>
+    Video not supported.
+</video>
+
+---