From 1162dba9a66ed916a18960d43a12e840ecd7046e Mon Sep 17 00:00:00 2001
From: EuAndreh <eu@euandre.org>
Date: Thu, 4 Jan 2024 16:50:54 -0300
Subject: bin/muffle: Add -n option

---
 bin/muffle | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

(limited to 'bin')

diff --git a/bin/muffle b/bin/muffle
index 35d1ee6..0feed18 100755
--- a/bin/muffle
+++ b/bin/muffle
@@ -4,7 +4,7 @@ set -eu
 usage() {
 	cat <<-'EOF'
 		Usage:
-		  muffle [--] COMMAND...
+		  muffle [-n] [--] COMMAND...
 		  muffle -h
 	EOF
 }
@@ -14,6 +14,7 @@ help() {
 
 
 		Options:
+		  -n            invert when to do the muffling
 		  -h, --help    show this message
 
 		  COMMAND       the COMMAND to be muffled
@@ -49,8 +50,12 @@ for flag in "$@"; do
 	esac
 done
 
-while getopts 'h' flag; do
+INVERT=false
+while getopts 'nh' flag; do
 	case "$flag" in
+		(n)
+			INVERT=true
+			;;
 		(h)
 			usage
 			help
@@ -80,7 +85,7 @@ echo 0 > "$STATUS_F"
 } 2>&1 | timed | pre err > "$ERR"
 
 STATUS="$(cat "$STATUS_F")"
-if [ "$STATUS" != 0 ]; then
+if [ "$INVERT" = false -a "$STATUS" != 0 ] || [ "$INVERT" = true -a "$STATUS" = 0 ]; then
 	cat "$OUT" "$ERR" |
 	sort -k2  | while read -r line; do
 		if [ "$(printf '%s\n' "$line" | cut -d' ' -f1)" = 'out:' ]; then
-- 
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