Make all signal.Notify channels buffered

cmd/restic/cleanup.go

@@ -20,7 +20,7 @@ var cleanupHandlers struct {
 var stderr = os.Stderr
 
 func init() {
-	cleanupHandlers.ch = make(chan os.Signal)
+	cleanupHandlers.ch = make(chan os.Signal, 1)
 	go CleanupHandler(cleanupHandlers.ch)
 	signal.Notify(cleanupHandlers.ch, syscall.SIGINT)
 }

internal/restic/lock.go

@@ -253,7 +253,7 @@ var ignoreSIGHUP sync.Once
 func init() {
 	ignoreSIGHUP.Do(func() {
 		go func() {
-			c := make(chan os.Signal)
+			c := make(chan os.Signal, 1)
 			signal.Notify(c, syscall.SIGHUP)
 			for s := range c {
 				debug.Log("Signal received: %v\n", s)

internal/restic/progress_unix.go

@@ -11,7 +11,7 @@ import (
 )
 
 func init() {
-	c := make(chan os.Signal)
+	c := make(chan os.Signal, 1)
 	signal.Notify(c, syscall.SIGUSR1)
 	go func() {
 		for s := range c {

internal/restic/progress_unix_with_siginfo.go

@@ -11,9 +11,8 @@ import (
 )
 
 func init() {
-	c := make(chan os.Signal)
-	signal.Notify(c, syscall.SIGUSR1)
-	signal.Notify(c, syscall.SIGINFO)
+	c := make(chan os.Signal, 1)
+	signal.Notify(c, syscall.SIGINFO, syscall.SIGUSR1)
 	go func() {
 		for s := range c {
 			debug.Log("Signal received: %v\n", s)