From a2469870cea5e861b18685e6915c5782433bd5a1 Mon Sep 17 00:00:00 2001
From: Seungheon Oh <seungheon.ooh@gmail.com>
Date: Fri, 17 Mar 2023 18:22:09 -0500
Subject: [PATCH] Support npm submodules

---
 nix/default.nix | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/nix/default.nix b/nix/default.nix
index 9d364cef1b..b3ea09a2a0 100644
--- a/nix/default.nix
+++ b/nix/default.nix
@@ -20,6 +20,8 @@
 , spagoPackages ? "${src}/spago-packages.nix"
   # Configuration that will be used to generate a `devShell` for the project
 , shell ? { }
+  # Path to submodule locations that needs to be copied when making node env
+, submodules ? [ ]
 , ...
 }:
 let
@@ -36,8 +38,15 @@ let
       } ''
       mkdir $out
       cd $out
-      cp ${packageLock} ./package-lock.json
-      cp ${packageJson} ./package.json
+      cp ${
+        pkgs.linkFarm "node-packages-${projectName}-source" ([
+          { name = "package.json"; path = packageJson; }
+          { name = "package-lock.json"; path = packageLock; }
+        ] ++ builtins.map (path: {
+          inherit path;
+          name = builtins.baseNameOf (builtins.toString modulePath);
+        }))
+      }/* . -r
       node2nix ${pkgs.lib.optionalString withDevDeps "--development" } \
         --lock ./package-lock.json -i ./package.json
     '')