plan 10: an interrupt stops between steps; nohup keeps ignoring hangups

1 files changed, 7 insertions, 1 deletions

diff --git a/cmd/krino/sort.go b/cmd/krino/sort.go
index 901b19e..52875ed 100644
--- a/cmd/krino/sort.go
+++ b/cmd/krino/sort.go
@@ -359,7 +359,13 @@ func installSignalHandler(cancel context.CancelFunc) func() {
 	}
 
 	sig := make(chan os.Signal, 1)
-	signal.Notify(sig, os.Interrupt, syscall.SIGTERM, syscall.SIGHUP)
+	signal.Notify(sig, os.Interrupt, syscall.SIGTERM)
+	// A hangup stops krino like SIGTERM - unless it was started ignoring
+	// hangups (nohup), which must go on meaning "keep running" (re-review
+	// pa F3): asking for SIGHUP would re-enable it.
+	if !signal.Ignored(syscall.SIGHUP) {
+		signal.Notify(sig, syscall.SIGHUP)
+	}
 	done := make(chan struct{})
 	go func() {
 		signals := 0