Add a script to run npm commands across all modules.

Author: amazon-meaisiah

scripts/npm.js

@@ -0,0 +1,38 @@
+'use strict'
+
+const path = require('path')
+const { spawn } = require('child_process')
+const { inspect } = require('util')
+
+const folders = [
+  '/',
+  '/dev-portal',
+  '/lambdas/backend',
+  '/lambdas/catalog-updater',
+  '/lambdas/listener',
+  '/lambdas/static-asset-uploader'
+]
+
+async function execute (args) {
+  for (const folder of folders) {
+    const resolved = path.join(__dirname, '..', folder.slice(1))
+    console.error(`\x1b[32mExecuting in folder:\x1b[0m \x1b[34m${folder}\x1b[0m`)
+    const { error, status, signal } = await new Promise((resolve, reject) => {
+      spawn('npm', args, { cwd: resolved, stdio: 'inherit' })
+        .on('exit', (status, signal) => resolve({ status, signal }))
+        .on('error', error => resolve({ error }))
+    })
+
+    if (error != null) {
+      console.error(`\x1b[31mExecution errored in folder: ${folder}`)
+      console.error(`${inspect(error, { colors: true })}\x1b[0m`)
+    } else {
+      console.error(`\x1b[32mExecution completed in folder:\x1b[0m \x1b[34m${folder}\x1b[0m`)
+      if (status != null) console.error(`Status: ${status}`)
+      if (signal != null) console.error(`Signal: ${signal}`)
+    }
+  }
+}
+
+module.exports = execute
+if (require.main === module) execute(process.argv.slice(2))