package/nodejs: add patch to adjust default NodeJS search path

By default, NodeJS searches global modules in /usr/lib/node, but NPM
installs them in /usr/lib/node_modules/. Therefore by default, if one
installs modules with BR2_PACKAGE_NODEJS_MODULES_ADDITIONAL, they are
not accessible by NodeJS, unless by passing a
NODE_PATH=/usr/lib/node_modules/ variable. Since this is not obvious,
and it's nicer when things work out of the box, we simply patch NodeJS
to look for modules at the right place.

See
https://stackoverflow.com/questions/15636367/nodejs-require-a-global-module-package
for some discussions on this topic.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Reviewed-by: Romain Naour <romain.naour@smile.fr>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

package/nodejs/0004-lib-internal-modules-cjs-loader.js-adjust-default-pa.patch

@@ -0,0 +1,36 @@
+From a31425bdfcb5d695ab25c3d295898326784cffec Mon Sep 17 00:00:00 2001
+From: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
+Date: Sun, 25 Sep 2022 11:10:06 +0200
+Subject: [PATCH] lib/internal/modules/cjs/loader.js: adjust default path to
+ search modules
+
+NPM installs modules in /usr/lib/node_modules/, but by default NodeJS
+searches for them only in /usr/lib/node/. We could also set the
+NODE_PATH environment variable, but it is more convienient to have
+NodeJS configured by default to find modules where they are installed.
+
+This issue is discussed at
+https://stackoverflow.com/questions/15636367/nodejs-require-a-global-module-package.
+
+Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
+---
+ lib/internal/modules/cjs/loader.js | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+diff --git a/lib/internal/modules/cjs/loader.js b/lib/internal/modules/cjs/loader.js
+index f1971c40a4..5fe3884156 100644
+--- a/lib/internal/modules/cjs/loader.js
++++ b/lib/internal/modules/cjs/loader.js
+@@ -1261,7 +1261,8 @@ Module._initPaths = function() {
+     path.resolve(process.execPath, '..') :
+     path.resolve(process.execPath, '..', '..');
+ 
+-  const paths = [path.resolve(prefixDir, 'lib', 'node')];
++  const paths = [path.resolve(prefixDir, 'lib', 'node'),
++                 path.resolve(prefixDir, 'lib', 'node_modules')];
+ 
+   if (homeDir) {
+     ArrayPrototypeUnshift(paths, path.resolve(homeDir, '.node_libraries'));
+-- 
+2.37.3
+