unikernel/duniverse/dune_/doc/howto/bundle.rst

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+How to Bundle Resources
+=======================
+
+This guide will show you how to configure Dune to generate modules with string resources
+from other files in your project.
+
+Folder Structure
+----------------
+
+.. code:: console
+
+    $ tree src
+    src
+    └── lib
+        └── my_lib
+            ├── dune
+            └── resources
+                └── site.css
+
+Dune Configuration
+------------------
+
+See :doc:`/reference/actions/progn` and
+:doc:`/reference/actions/with-outputs-to`.
+
+.. code:: dune
+
+    (rule
+     (with-stdout-to
+      css.ml
+      (progn
+       (echo "let css = {|")
+       (cat resources/site.css)
+       (echo "|}"))))
+
+Using the Bundled Resource
+--------------------------
+
+.. code:: ocaml
+
+   let () = Printf.printf "%s" Css.css