Support non-submodule code

Signed-off-by: Danila Fedorin <danila.fedorin@gmail.com>

agda.rb

@@ -117,16 +117,28 @@ class Handler
         last_line = last_line_attr.to_s.to_i
       end
 
-      # The name of an Agda module is determined from its directory
-      # structure: A/B/C.agda creates A.B.C.html. Assume that the
-      # base path is the Agda module root, and use the remaining directories
-      # to build the HTML file name.
-      base_path = t.attribute("data-base-path").to_s
-      base_path_dirs = Pathname(base_path).each_filename.to_a
       full_path = t.attribute("data-file-path").to_s
       full_path_dirs = Pathname(full_path).each_filename.to_a
 
-      dirs_in_base = full_path_dirs[base_path_dirs.length..-1]
+      # The name of an Agda module is determined from its directory
+      # structure: A/B/C.agda creates A.B.C.html. Depending on where
+      # the code is included, there might be some additional folders
+      # that precede A that we want to ignore.
+      base_path = t.attribute("data-base-path").to_s
+      base_dir_depth = 0
+      if base_path.empty?
+        # No submodules were used. Assume code/<X> is the root, since
+        # that's the code layout of the blog right now.
+        base_dir_depth = 1
+        base_path = full_path_dirs[0]
+      else
+        # The code is in a submodule. Assume that the base path / submodule
+        # root is the Agda module root, ignore all folders before that.
+        base_path_dirs = Pathname(base_path).each_filename.to_a
+        base_dir_depth = base_path_dirs.length
+      end
+
+      dirs_in_base = full_path_dirs[base_dir_depth..-1]
       html_file = dirs_in_base.join(".").gsub(/\.agda$/, ".html")
       html_path = File.join(["code", base_path, "html", html_file])
 

themes/vanilla

@@ -1 +1 @@
-Subproject commit 3ccb5e8c65aab527f9fa72559db17ff7b07d042b
+Subproject commit 1aeb6007509f3e4e4b3f22207f752f2c7b6b2446