From b53d4ad7de70dbc85b6c24bacb023b6dce0e7c78 Mon Sep 17 00:00:00 2001
From: Natanael Copa <ncopa@alpinelinux.org>
Date: Fri, 25 Oct 2013 07:57:35 +0000
Subject: [PATCH] abuild-sign: add -e/--installed option

This is supposed to be used in abuild only to make it possible to exit
with error early, before package is built, in case the signing key is
missing.
---
 abuild-sign.in | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/abuild-sign.in b/abuild-sign.in
index 4f38a0c..ce7baa5 100644
--- a/abuild-sign.in
+++ b/abuild-sign.in
@@ -46,7 +46,9 @@ usage() {
 	cat >&2 <<__EOF__
 $program $program_version - sign indexes
 Usage: $program [-k PRIVKEY] [-p PUBKEY] INDEXFILE...
+       $program -e
 Options:
+  -e, --installed    Check only of there exist a private key for signing
   -k, --private KEY  The private key to use for signing
   -p, --public KEY   The name of public key. apk add will look for
                      /etc/apk/keys/KEY
@@ -56,11 +58,12 @@ Options:
 __EOF__
 }
 
+check_installed=false
 privkey="$PACKAGER_PRIVKEY"
 pubkey=
 quiet=
 
-args=`getopt -o k:p:qh --long private:,public:,quiet,help -n "$program" -- "$@"`
+args=`getopt -o ek:p:qh --long installed,private:,public:,quiet,help -n "$program" -- "$@"`
 if [ $? -ne 0 ]; then
 	usage
 	exit 2
@@ -68,6 +71,7 @@ fi
 eval set -- "$args"
 while true; do
 	case $1 in
+		-e|--installed) check_installed=true;;
 		-k|--private) privkey=$2; shift;;
 		-p|--public) pubkey=$2; shift;;
 		-q|--quiet) quiet=1;; # suppresses msg
@@ -77,7 +81,7 @@ while true; do
 	esac
 	shift
 done
-if [ $# -eq 0 ]; then
+if [ $# -eq 0 ] && ! $check_installed; then
 	usage
 	exit 2
 fi
@@ -99,5 +103,6 @@ if [ -z "$pubkey" ]; then
 	pubkey=${PACKAGER_PUBKEY:-"${privkey}.pub"}
 fi
 
-do_sign "$@"
-exit 0
+if ! $check_installed; then
+	do_sign "$@"
+fi