From 37ab9424073c37e0c789e6ffe6bb393e19a93c6e Mon Sep 17 00:00:00 2001
From: Terry <zhangwenlp@vip.qq.com>
Date: Mon, 9 Sep 2019 13:15:42 +0800
Subject: [PATCH] fix(nx): remove unused double dashes to avoid yarn's warning

---
 packages/workspace/src/command-line/affected.ts | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/packages/workspace/src/command-line/affected.ts b/packages/workspace/src/command-line/affected.ts
index 4e5a32a0377ec..aaa8bf89be5a9 100644
--- a/packages/workspace/src/command-line/affected.ts
+++ b/packages/workspace/src/command-line/affected.ts
@@ -216,15 +216,20 @@ async function runCommand(
   }
 
   try {
+    const isYarn = path
+      .basename(process.env.npm_execpath || 'npm')
+      .startsWith('yarn');
     await runAll(
       projects.map(proj => {
         return commonCommands.includes(targetName)
-          ? `${cli} -- ${targetName} ${proj} ${transformArgs(
+          ? `${cli} ${isYarn ? '' : '--'} ${targetName} ${proj} ${transformArgs(
               args,
               proj,
               projectMetadata.get(proj)
             ).join(' ')} `
-          : `${cli} -- run ${proj}:${targetName} ${transformArgs(
+          : `${cli} ${
+              isYarn ? '' : '--'
+            } run ${proj}:${targetName} ${transformArgs(
               args,
               proj,
               projectMetadata.get(proj)