cli: allow multiple --require

Signed-off-by: Vincenzo Scamporlino <vincenzos@spotify.com>

packages/cli/src/commands/index.ts

@@ -86,7 +86,10 @@ export function registerScriptCommand(program: Command) {
       '--inspect-brk [host]',
       'Enable debugger in Node.js environments, breaking before code starts',
     )
-    .option('--require <path>', 'Add a --require argument to the node process')
+    .option(
+      '--require <path...>',
+      'Add a --require argument to the node process',
+    )
     .option('--link <path>', 'Link an external workspace for module resolution')
     .action(lazy(() => import('./start'), 'command'));
 

packages/cli/src/lib/runner/runBackend.ts

@@ -39,7 +39,7 @@ export type RunBackendOptions = {
   /** Whether to forward the --inspect-brk flag to the node process */
   inspectBrkEnabled: boolean;
   /** Additional module to require via the --require flag to the node process */
-  require?: string;
+  require?: string | string[];
   /** An external linked workspace to override module resolution towards */
   linkedWorkspace?: string;
 };
@@ -107,7 +107,10 @@ export async function runBackend(options: RunBackendOptions) {
       optionArgs.push(inspect);
     }
     if (options.require) {
-      optionArgs.push(`--require=${options.require}`);
+      const requires = [options.require].flat();
+      for (const r of requires) {
+        optionArgs.push(`--require=${r}`);
+      }
     }
 
     const userArgs = process.argv