From 6145e1439b9de93806925353403f91d2abbad8a5 Mon Sep 17 00:00:00 2001
From: Benjamin Radovsky <radovskyb@gmail.com>
Date: Thu, 10 Aug 2017 16:39:29 +1000
Subject: [PATCH] run command in separate goroutine to prevent block

---
 cmd/watcher/main.go | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/cmd/watcher/main.go b/cmd/watcher/main.go
index 025dcc2..88d2e69 100644
--- a/cmd/watcher/main.go
+++ b/cmd/watcher/main.go
@@ -134,15 +134,17 @@ func main() {
 	}()
 
 	// Run the command before watcher starts if one was specified.
-	if *cmd != "" && *startcmd {
-		c := exec.Command(cmdName, cmdArgs...)
-		c.Stdin = os.Stdin
-		c.Stdout = os.Stdout
-		c.Stderr = os.Stderr
-		if err := c.Run(); err != nil {
-			log.Fatalln(err)
+	go func() {
+		if *cmd != "" && *startcmd {
+			c := exec.Command(cmdName, cmdArgs...)
+			c.Stdin = os.Stdin
+			c.Stdout = os.Stdout
+			c.Stderr = os.Stderr
+			if err := c.Run(); err != nil {
+				log.Fatalln(err)
+			}
 		}
-	}
+	}()
 
 	// Start the watching process.
 	if err := w.Start(parsedInterval); err != nil {