From f5ce8029462b7cdc899b6c53b1a1a5c95c1c7efb Mon Sep 17 00:00:00 2001
From: Dong Gang <dong.gang@daocloud.io>
Date: Mon, 13 Jul 2020 11:34:19 +0800
Subject: [PATCH] Modify the logic of Command execute function

Signed-off-by: Dong Gang <dong.gang@daocloud.io>
---
 command.go | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/command.go b/command.go
index 5f1caccc..6fb6af8b 100644
--- a/command.go
+++ b/command.go
@@ -801,12 +801,6 @@ func (c *Command) execute(a []string) (err error) {
 		}
 	}
 
-	if !c.Runnable() {
-		return flag.ErrHelp
-	}
-
-	c.preRun()
-
 	argWoFlags := c.Flags().Args()
 	if c.DisableFlagParsing {
 		argWoFlags = a
@@ -816,6 +810,12 @@ func (c *Command) execute(a []string) (err error) {
 		return err
 	}
 
+	if !c.Runnable() {
+		return flag.ErrHelp
+	}
+
+	c.preRun()
+
 	for p := c; p != nil; p = p.Parent() {
 		if p.PersistentPreRunE != nil {
 			if err := p.PersistentPreRunE(c, argWoFlags); err != nil {