apkgrel: new tool for bumping pkgrel

Makefile

@@ -11,7 +11,7 @@ LUA_VERSION	= 5.1
 LUA_SHAREDIR	?= $(prefix)/share/lua/$(LUA_VERSION)/
 
 SCRIPTS		:= abuild devbuild buildrepo abuild-keygen \
-		abuild-sign newapkbuild abump ap
+		abuild-sign newapkbuild abump apkgrel ap
 USR_BIN_FILES	:= $(SCRIPTS) abuild-tar
 SAMPLES		:= sample.APKBUILD sample.initd sample.confd \
 		sample.pre-install sample.post-install

apkgrel.in

@@ -0,0 +1,75 @@
+#!/bin/sh
+
+program=${0##*/}
+
+do_show() {
+	awk -F= '$1 == "pkgrel" { print $2 }' "$@"
+}
+
+do_set() {
+	sed -e "/^pkgrel=/s/=.*/=${setto:-0}/" \
+		-i "$@"
+}
+
+do_add () {
+	local f= old=
+	for f in "$@"; do
+		old=$(do_show "$f")
+		setto=$(($old + 1))
+		do_set "$f" || return 1
+	done	
+}
+
+do_verify() {
+	[ -n "$force" ] && return 0
+	if ! grep -q '^pkgrel=[0-9]' "$@"; then
+		echo "The following files does not have proper pkgrel:" >&2
+		grep -L '^pkgrel=[0-9]' "$@" >&2
+		return 1
+	fi
+	return 0
+}
+
+do_nothing() {
+	return 0
+}
+
+do_usage() {
+	cat <<__EOF__
+Usage: $program -a|-h|-s NUM|-t|-z [-f] FILE...
+Commands:
+  -a  Add 1 to current pkgrel
+  -h  Show this help
+  -s  Set pkgrel to NUM
+  -t  Only verify that files are in proper format
+  -z  Set pkgrel to 0
+
+Options:
+  -f  Force, even if given files are not in proper format
+
+__EOF__
+}
+
+cmd=do_show
+force=
+while getopts "afhs:tz" opt; do
+	case $opt in
+	a) cmd=do_add;;
+	f) force=1;;
+	h) cmd=do_usage;;
+	s) setto=$OPTARG; cmd=do_set;;
+	t) cmd=do_nothing;;
+	z) setto=0; cmd=do_set;;
+	esac
+done
+
+shift $(( $OPTIND - 1))
+
+if [ $# -eq 0 ]; then
+	do_usage
+	exit 1
+fi
+
+do_verify "$@" || exit 1
+$cmd "$@"
+