fix(core): not load root env files when NX_LOAD_DOT_ENV_FILES is false

packages/nx/bin/nx.ts

@@ -35,11 +35,12 @@ function main() {
 
   const workspace = findWorkspaceRoot(process.cwd());
 
-  performance.mark('loading dotenv files:start');
-  if (workspace) {
+  if (workspace && process.env.NX_LOAD_DOT_ENV_FILES !== 'false') {
+    performance.mark('loading dotenv files:start');
     loadRootEnvFiles(workspace.dir);
+    performance.mark('loading dotenv files:end');
   }
-  performance.mark('loading dotenv files:end');
+
   performance.measure(
     'loading dotenv files',
     'loading dotenv files:start',

packages/nx/src/tasks-runner/init-tasks-runner.ts

@@ -11,7 +11,9 @@ import { TaskResult } from './life-cycle';
 
 export async function initTasksRunner(nxArgs: NxArgs) {
   performance.mark('init-local');
-  loadRootEnvFiles();
+  if (process.env.NX_LOAD_DOT_ENV_FILES !== 'false') {
+    loadRootEnvFiles();
+  }
   const nxJson = readNxJson();
   if (nxArgs.verbose) {
     process.env.NX_VERBOSE_LOGGING = 'true';

packages/nx/src/utils/dotenv.ts

@@ -1,7 +1,6 @@
-import { config as loadDotEnvFile } from 'dotenv';
-import { expand } from 'dotenv-expand';
 import { workspaceRoot } from './workspace-root';
 import { join } from 'path';
+import { loadAndExpandDotEnvFile } from '../tasks-runner/task-env';
 
 /**
  * This loads dotenv files from:
@@ -11,9 +10,6 @@ import { join } from 'path';
  */
 export function loadRootEnvFiles(root = workspaceRoot) {
   for (const file of ['.local.env', '.env.local', '.env']) {
-    const myEnv = loadDotEnvFile({
-      path: join(root, file),
-    });
-    expand(myEnv);
+    loadAndExpandDotEnvFile(join(root, file), process.env);
   }
 }