initial handling of blog content and serving of blog content files/assets

lib/home73k_web/controllers/blog_file_controller.ex

@@ -0,0 +1,30 @@
+defmodule Home73kWeb.BlogFileController do
+  use Home73kWeb, :controller
+
+  @moduledoc """
+  This controller handles path requests that didn't match an existing route,
+  including the main Plug.Static for the / root path.
+
+  To handle this situation, we'll check if the requested resource exists as
+  a file under the blog content repo folder, by querying the Blog genserve.
+
+  If it exists, we'll redirect to the blog content static path under /_
+  Otherwise, we'll return 404 not found.
+  """
+
+  alias Home73k.Repo
+  alias Home73k.Blog
+
+  def index(conn, _params) do
+    # What would be the content path of this requested resource?
+    content_path = Repo.content_path() |> Path.join(conn.request_path)
+
+    # Check if it exists in the Blog's known files
+    Blog.get_files()
+    |> Enum.member?(content_path)
+    |> case do
+      true -> redirect(conn, to: "/_#{conn.request_path}")
+      false -> send_resp(conn, 404, "not found")
+    end
+  end
+end

lib/home73k_web/endpoint.ex

@@ -26,6 +26,18 @@ defmodule Home73kWeb.Endpoint do
     gzip: true,
     only: ~w(css fonts images js favicon.ico robots.txt DF185CEE29A3D443_public_key.asc)
 
+  # Blog static path handler
+  if File.dir?(Home73k.Repo.content_path()) do
+    plug Plug.Static,
+      at: "/_",
+      from: Home73k.Repo.content_path(),
+      gzip: false,
+      only:
+        Home73k.Repo.content_path()
+        |> File.ls!()
+        |> Enum.filter(fn f -> !String.starts_with?(f, ".") end)
+  end
+
   # Code reloading can be explicitly enabled under the
   # :code_reloader configuration of your endpoint.
   if code_reloading? do

lib/home73k_web/router.ex

@@ -43,4 +43,9 @@ defmodule Home73kWeb.Router do
       live_dashboard "/dashboard", metrics: Home73kWeb.Telemetry
     end
   end
+
+  # Wildcard path for handling Blog Files from repo
+  scope "/", Home73kWeb do
+    get "/*path", BlogFileController, :index
+  end
 end