From f2df072f48cd6c740a8e3c7baf4312e36ff35340 Mon Sep 17 00:00:00 2001
From: Alexander Neumann <alexander@bumpern.de>
Date: Sun, 22 Mar 2015 14:12:51 +0100
Subject: [PATCH] Progress: Don't panic for not running progress

---
 progress.go | 12 ++----------
 1 file changed, 2 insertions(+), 10 deletions(-)

diff --git a/progress.go b/progress.go
index 9c4c47dc5..c84b91640 100644
--- a/progress.go
+++ b/progress.go
@@ -42,14 +42,10 @@ func NewProgress(d time.Duration) *Progress {
 
 // Start runs resets and runs the progress reporter.
 func (p *Progress) Start() {
-	if p == nil {
+	if p == nil || p.running {
 		return
 	}
 
-	if p.running {
-		panic("truing to reset a running Progress")
-	}
-
 	p.o = sync.Once{}
 	p.cancel = make(chan struct{})
 	p.running = true
@@ -135,14 +131,10 @@ func (p *Progress) Reset() {
 
 // Done closes the progress report.
 func (p *Progress) Done() {
-	if p == nil {
+	if p == nil || !p.running {
 		return
 	}
 
-	if !p.running {
-		panic("Done() called on non-running Progress")
-	}
-
 	if p.running {
 		p.running = false
 		p.o.Do(func() {