From 1c0af1c235a323a3fd5d5126f8c56213f40a9497 Mon Sep 17 00:00:00 2001
From: micnncim <micnncim@gmail.com>
Date: Mon, 14 Oct 2019 09:33:48 +0900
Subject: [PATCH] Fix bug to prevent failing creating new label (#14)

---
 pkg/github/github.go | 28 ++++++++++++++++------------
 1 file changed, 16 insertions(+), 12 deletions(-)

diff --git a/pkg/github/github.go b/pkg/github/github.go
index 8026cac..c87410f 100644
--- a/pkg/github/github.go
+++ b/pkg/github/github.go
@@ -59,6 +59,22 @@ func (c *Client) SyncLabels(ctx context.Context, owner, repo string, labels []La
 
 	eg := errgroup.Group{}
 
+	// Delete labels.
+	for _, currentLabel := range currentLabels {
+		currentLabel := currentLabel
+		eg.Go(func() error {
+			_, ok := labelMap[currentLabel.Name]
+			if ok {
+				return nil
+			}
+			return c.deleteLabel(ctx, owner, repo, currentLabel.Name)
+		})
+	}
+
+	if err := eg.Wait(); err != nil {
+		return err
+	}
+
 	// Create and/or update labels.
 	for _, l := range labels {
 		l := l
@@ -74,18 +90,6 @@ func (c *Client) SyncLabels(ctx context.Context, owner, repo string, labels []La
 		})
 	}
 
-	// Delete labels.
-	for _, currentLabel := range currentLabels {
-		currentLabel := currentLabel
-		eg.Go(func() error {
-			_, ok := labelMap[currentLabel.Name]
-			if ok {
-				return nil
-			}
-			return c.deleteLabel(ctx, owner, repo, currentLabel.Name)
-		})
-	}
-
 	return eg.Wait()
 }