Static dir 2075 (#2076)

* Add support for nested static directories

* Add support for nested static directories

* Bump version 21.3.1

examples/static/robots.txt

@@ -0,0 +1,2 @@
+User-agent: *
+Disallow: /

examples/static_assets.py

@@ -0,0 +1,6 @@
+from sanic import Sanic
+
+
+app = Sanic(__name__)
+
+app.static("/", "./static")

sanic/__version__.py

@@ -1 +1 @@
-__version__ = "21.3.0"
+__version__ = "21.3.1"

sanic/mixins/routes.py

@@ -776,7 +776,7 @@ class RouteMixin:
         # If we're not trying to match a file directly,
         # serve from the folder
         if not path.isfile(file_or_directory):
-            uri += "/<__file_uri__>"
+            uri += "/<__file_uri__:path>"
 
         # special prefix for static files
         # if not static.name.startswith("_static_"):

tests/static/nested/dir/foo.txt

@@ -0,0 +1 @@
+foo

tests/test_static.py

@@ -445,3 +445,12 @@ def test_static_name(app, static_file_directory, static_name, file_name):
     request, response = app.test_client.get(f"/static/{file_name}")
 
     assert response.status == 200
+
+
+def test_nested_dir(app, static_file_directory):
+    app.static("/static", static_file_directory)
+
+    request, response = app.test_client.get("/static/nested/dir/foo.txt")
+
+    assert response.status == 200
+    assert response.text == "foo\n"