Rework index page to take less vertical space

docs/extensions/resourcelinks.py

@@ -0,0 +1,44 @@
+# Credit to sphinx.ext.extlinks for being a good starter
+# Copyright 2007-2020 by the Sphinx team
+# Licensed under BSD.
+
+from typing import Any, Dict, List, Tuple
+
+from docutils import nodes, utils
+from docutils.nodes import Node, system_message
+from docutils.parsers.rst.states import Inliner
+
+import sphinx
+from sphinx.application import Sphinx
+from sphinx.util.nodes import split_explicit_title
+from sphinx.util.typing import RoleFunction
+
+
+def make_link_role(resource_links: Dict[str, str]) -> RoleFunction:
+    def role(
+        typ: str,
+        rawtext: str,
+        text: str,
+        lineno: int,
+        inliner: Inliner,
+        options: Dict = {},
+        content: List[str] = []
+    ) -> Tuple[List[Node], List[system_message]]:
+
+        text = utils.unescape(text)
+        has_explicit_title, title, key = split_explicit_title(text)
+        full_url = resource_links[key]
+        if not has_explicit_title:
+            title = full_url
+        pnode = nodes.reference(title, title, internal=False, refuri=full_url)
+        return [pnode], []
+    return role
+
+
+def add_link_role(app: Sphinx) -> None:
+    app.add_role('resource', make_link_role(app.config.resource_links))
+
+def setup(app: Sphinx) -> Dict[str, Any]:
+    app.add_config_value('resource_links', {}, 'env')
+    app.connect('builder-inited', add_link_role)
+    return {'version': sphinx.__display_version__, 'parallel_read_safe': True}