From e58130cc6b534b92ca4c42e864a66082394467bd Mon Sep 17 00:00:00 2001
From: zeeZ <zeeZinator+github@gmail.com>
Date: Thu, 4 Jun 2020 14:28:27 +0200
Subject: [PATCH] Wait for cmd reads to complete before calling Wait()

---
 utils/utils.go | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/utils/utils.go b/utils/utils.go
index 2d6dce27..06b71912 100644
--- a/utils/utils.go
+++ b/utils/utils.go
@@ -13,6 +13,7 @@ import (
 	"os/exec"
 	"strconv"
 	"strings"
+	"sync"
 	"time"
 
 	"github.com/ararog/timeago"
@@ -129,14 +130,18 @@ func Command(name string, args ...string) (string, string, error) {
 		return "", "", err
 	}
 
+	var wg sync.WaitGroup
+
+	wg.Add(1)
 	go func() {
+		defer wg.Done()
 		stdout, errStdout = copyAndCapture(os.Stdout, stdoutIn)
 	}()
 
-	go func() {
-		stderr, errStderr = copyAndCapture(os.Stderr, stderrIn)
-	}()
+	stderr, errStderr = copyAndCapture(os.Stderr, stderrIn)
 
+	// call testCmd.Wait() only after reads from all pipes have completed
+	wg.Wait()
 	err = testCmd.Wait()
 	if err != nil {
 		return string(stdout), string(stderr), err