fix(cli): handle pnpm_execpath binaries

(cherry picked from commit 3674d44a8f3c171a176aadc7f9f10624dab9fc4a)

Author: Salnika

packages/tools/src/__tests__/local-cli.spec.ts

@@ -0,0 +1,34 @@
+import path from 'node:path';
+
+import { describe, expect, test } from '@voidzero-dev/vite-plus-test';
+
+import { getPnpmInvocation } from '../local-cli.ts';
+
+describe('getPnpmInvocation()', () => {
+  test('falls back to pnpm binary when npm_execpath is unset', () => {
+    const expectedCommand = process.platform === 'win32' ? 'pnpm.cmd' : 'pnpm';
+
+    expect(getPnpmInvocation(undefined)).toEqual({
+      command: expectedCommand,
+      args: [],
+    });
+  });
+
+  test('runs pnpm through node when npm_execpath points to a JS script', () => {
+    const execPath = path.join('/tmp', 'pnpm.cjs');
+
+    expect(getPnpmInvocation(execPath)).toEqual({
+      command: process.execPath,
+      args: [execPath],
+    });
+  });
+
+  test('runs pnpm directly when npm_execpath points to a native binary', () => {
+    const execPath = path.join('/home/runner/setup-pnpm/node_modules/.bin/store', 'pnpm');
+
+    expect(getPnpmInvocation(execPath)).toEqual({
+      command: execPath,
+      args: [],
+    });
+  });
+});

packages/tools/src/local-cli.ts

@@ -295,9 +295,30 @@ function runCommand(step: string, command: string, args: string[], options: Comm
   process.exit(result.status ?? 1);
 }
 
+export function getPnpmInvocation(execPath: string | undefined) {
+  if (!execPath) {
+    return {
+      command: pnpmBin,
+      args: [] as string[],
+    };
+  }
+
+  const ext = path.extname(execPath);
+  if (ext === '.js' || ext === '.cjs' || ext === '.mjs') {
+    return {
+      command: process.execPath,
+      args: [execPath],
+    };
+  }
+
+  return {
+    command: execPath,
+    args: [] as string[],
+  };
+}
+
 function runPnpmCommand(step: string, args: string[], options: CommandOptions = {}) {
-  const baseArgs = pnpmExecPath ? [pnpmExecPath] : [];
-  const command = pnpmExecPath ? process.execPath : pnpmBin;
+  const { command, args: baseArgs } = getPnpmInvocation(pnpmExecPath);
 
   runCommand(step, command, [...baseArgs, ...args], options);
 }