unikernel/duniverse/dune_/test/blackbox-tests/test-cases/melange/copy-files-include-subdirs.t

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+Example using melange.emit, copy_files and include_subdirs
+
+  $ mkdir assets
+  $ cat > assets/file.txt <<EOF
+  > hello from file
+  > EOF
+
+  $ cat > dune-project <<EOF
+  > (lang dune 3.8)
+  > (using melange 0.1)
+  > EOF
+
+  $ mkdir src
+
+  $ cat > src/dune <<EOF
+  > (melange.emit
+  >  (target app)
+  >  (emit_stdlib false)
+  >  (libraries melange.node)
+  >  (preprocess (pps melange.ppx))
+  >  (alias mel))
+  > 
+  > (subdir
+  >  app
+  >  (copy_files
+  >   (files %{project_root}/assets/file.txt))
+  >  (alias
+  >   (name mel)
+  >   (deps file.txt)))
+  > EOF
+
+  $ cat > src/main.ml <<EOF
+  > let dirname = [%mel.raw "__dirname"]
+  > let file_path = "../file.txt"
+  > let file_content = Node.Fs.readFileSync (dirname ^ "/" ^ file_path) \`utf8
+  > let () = Js.log file_content
+  > EOF
+
+  $ output_dir=_build/default/src/app
+  $ src=$output_dir/src/main.js
+  $ asset=$output_dir/file.txt
+  $ dune build @mel
+  $ dune build $asset
+  $ node $src
+  hello from file
+  
+Works with `(include_subdirs unqualified)` too
+
+  $ echo "(include_subdirs unqualified)" >> src/dune
+
+  $ dune build @mel
+  $ dune build $asset
+  $ node $src
+  hello from file
+