mblaze: add mrm for removing messages

mblaze/Makefile

@@ -14,7 +14,7 @@
 
 PREFIX =	${HOME}/.mblaze
 
-BIN =		m mless
+BIN =		m mless mrm
 CONTRIB =	contrib/mencrypt contrib/mgpg contrib/msign contrib/mverify
 
 all: ${BIN}

mblaze/mrm.sh

@@ -0,0 +1,33 @@
+#!/bin/sh
+# mblaze.env
+# Written in 2020 by Lucas
+# CC0 1.0 Universal/Public domain - No rights reserved
+#
+# To the extent possible under law, the author(s) have dedicated all
+# copyright and related and neighboring rights to this software to the
+# public domain worldwide. This software is distributed without any
+# warranty. You should have received a copy of the CC0 Public Domain
+# Dedication along with this software. If not, see
+# <http://creativecommons.org/publicdomain/zero/1.0/>.
+
+usage()
+{
+	printf "Usage: %s [-n] msgs...\n" "${0##*/}" >&2
+	exit 1
+}
+
+dryrun=no
+while getopts n flag; do
+	case $flag in
+	n)	dryrun=yes ;;
+	*)	usage ;;
+	esac
+done
+shift $((OPTIND - 1))
+[ $# -gt 0 ] || usage
+
+if [ $dryrun = yes ]; then
+	mseq -r -- "$@"
+else
+	mseq -r -- "$@" | xargs -E "" -L 100 rm -v --
+fi