shithub: riscv

Download patch

ref: c7e25f71b4b4705e2dde15ceb497e4091b121c7e
parent: 64eaf7ba5bafbb3995cfb6f986dfd9a735f8ff81
author: Michael Forney <mforney@mforney.org>
date: Sun Oct 30 00:34:44 EDT 2022

rc: make `flag f [+-]` clear status on success

Otherwise, the old status will be retained, which may be non-empty if
it follows an if command whose branch wasn't taken.  This is
problematic for scripts using -e.

--- a/sys/src/cmd/rc/simple.c

+++ b/sys/src/cmd/rc/simple.c

@@ -445,10 +445,12 @@

 		if(strlen(letter)==1){

 			if(strcmp(val, "+")==0){

 				flag[(unsigned char)letter[0]] = flagset;

+				setstatus("");

 				break;

 			}

 			if(strcmp(val, "-")==0){

 				flag[(unsigned char)letter[0]] = 0;

+				setstatus("");

 				break;

 			}

 		}