Merge pull request #19994 from /issues/19993

Fix npm run init to work when using NPM >= 8

lib/util.js

@@ -1,7 +1,11 @@
+const fs = require('fs')
 const Log = require('./logging')
 const { spawnSync } = require('child_process')
 
-const getNPMConfig = (path) => {
+// This is the valid way of retrieving configuration values for NPM <= 6, with
+// npm_package_config_* still working up to NPM 7, but no longer for NPM >= 8.
+// See https://github.com/npm/rfcs/blob/main/implemented/0021-reduce-lifecycle-script-environment.md
+const getNPMConfigFromEnv = (path) => {
   const key = path.join('_')
   // Npm <= 6 did not preserve dashes in package.json keys
   const keyNoDashes = key.replace('-', '_')
@@ -15,6 +19,29 @@ const getNPMConfig = (path) => {
     process.env[package_prefix + key]
 }
 
+// From NPM >= 8, we need to inspect the package.json file, which should
+// be available via the 'npm_package_json' environment variable.
+const getNPMConfigFromPackageJson = (path) => {
+  let packages = { config: {} }
+  if (fs.existsSync(process.env['npm_package_json'])) {
+    packages = require(process.env['npm_package_json'])
+  }
+
+  let obj = packages.config
+  for (var i = 0, len = path.length; i < len; i++) {
+    if (!obj) {
+      return obj
+    }
+    obj = obj[path[i]]
+  }
+  return obj
+}
+
+const getNPMConfig = (path) => {
+  return getNPMConfigFromEnv(path) || getNPMConfigFromPackageJson(path)
+}
+
+
 const getProjectVersion = (projectName) => {
   return getNPMConfig(['projects', projectName, 'tag']) || getNPMConfig(['projects', projectName, 'branch'])
 }