From 7d1787d0b60db2bc5307d333a335d57feba7d43a Mon Sep 17 00:00:00 2001
From: KUOKA Yusuke <ykuoka@gmail.com>
Date: Thu, 27 Sep 2018 04:36:34 +0900
Subject: [PATCH] One Ctrl-C should exit helmfile gracefully (#369)

Perhaps in latest commits I unexpectedly changed it to require double Ctrl-C to actually interrupt. This fixes it so that one Ctrl-C exists helmfile.

On the way to the fix, I changed the exit-code to 128 + SIGNAL(2 for SIGINT, 15 for SIGTERM) according to common *nix commands.
---
 main.go | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/main.go b/main.go
index af091cc4..e09f6d8b 100644
--- a/main.go
+++ b/main.go
@@ -988,7 +988,14 @@ func (a *app) loadDesiredStateFromYaml(yaml []byte, file string, namespace strin
 		sig := <-sigs
 
 		errs := []error{fmt.Errorf("Received [%s] to shutdown ", sig)}
-		clean(st, errs)
+		_ = clean(st, errs)
+		// See http://tldp.org/LDP/abs/html/exitcodes.html
+		switch sig {
+		case syscall.SIGINT:
+			os.Exit(130)
+		case syscall.SIGTERM:
+			os.Exit(143)
+		}
 	}()
 
 	return st, nil