Support single version subprojects URLs to serve from Django

Author: humitos

readthedocs/core/urls/subdomain.py

@@ -46,6 +46,18 @@
         serve_docs,
         name='docs_detail',
     ),
+
+    # Special case for single-version subprojects
+    # docs.customdomain.org/projects/subproject/_static/readthedocs-data.js
+    # docs.customdomain.org/projects/subproject/chapter/section/page.html
+    url(
+        (
+            r'^projects/(?P<subproject_slug>{project_slug})/'
+            r'(?P<filename>{filename_slug})$'.format(**pattern_opts)
+        ),
+        serve_docs,
+        name='docs_detail_singleversion_subproject',
+    ),
 ]
 
 groups = [subdomain_urls]

readthedocs/core/views/serve.py

@@ -110,6 +110,14 @@ def inner_view(  # noqa
 def redirect_project_slug(request, project, subproject):  # pylint: disable=unused-argument
     """Handle / -> /en/latest/ directs on subdomains."""
     urlparse_result = urlparse(request.get_full_path())
+
+    # When accessing docs.customdomain.org/projects/subproject/ and the
+    # ``subproject`` is a single-version, we don't have to redirect but to serve
+    # the index file instead.
+    if subproject and subproject.single_version:
+        # TODO: find a way to import ``serve_docs`` from corporate
+        return serve_docs(request, project, project.slug, subproject, subproject.slug)
+
     return HttpResponseRedirect(
         resolve(
             subproject or project,