From 7f3e248ed1b789bfa92f885158ab6e60063159c5 Mon Sep 17 00:00:00 2001
From: Ben Hardill <ben@flowforge.com>
Date: Mon, 20 Nov 2023 13:36:05 +0000
Subject: [PATCH] Add NODE_OPTIONS env var to npm install

part of #194
---
 lib/launcher.js | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/lib/launcher.js b/lib/launcher.js
index 3066a24..dee4282 100644
--- a/lib/launcher.js
+++ b/lib/launcher.js
@@ -219,10 +219,15 @@ class Launcher {
             fs.writeFileSync(pkgFilePath, JSON.stringify(pkg, null, 2))
             const npmCommand = process.platform === 'win32' ? 'npm.cmd' : 'npm'
             return new Promise((resolve, reject) => {
+                const env = {}
+                if (this.settings.stack.memory) {
+                    const memLimit = Math.round(this.settings.stack.memory * 0.75)
+                    env.NODE_OPTIONS = `--max-old-space=${memLimit}`
+                }
                 const child = childProcess.spawn(
                     npmCommand,
                     ['install', '--omit=dev', '--no-audit', '--no-update-notifier', '--no-fund'],
-                    { windowsHide: true, cwd: path.join(this.settings.rootDir, this.settings.userDir) })
+                    { windowsHide: true, cwd: path.join(this.settings.rootDir, this.settings.userDir), env })
                 child.stdout.on('data', (data) => {
                     this.logBuffer.add({ level: 'system', msg: '[npm] ' + data })
                 })