abuild/abuild-sign.in

#!/bin/sh

# abuild-sign - sign indexes
# Copyright (c) 2009 Natanael Copa <ncopa@alpinelinux.org>
#
# Distributed under GPL-2
#

abuild_ver=@VERSION@
datadir=@datadir@

if ! [ -f "$datadir/functions.sh" ]; then
	echo "$datadir/functions.sh: not found" >&2
	exit 1
fi
. "$datadir/functions.sh"

do_sign() {
	# we are actually only interested in the name, not the file itself
	keyname=${pubkey##*/}

	for f; do
		i=$(readlink -f $f)
		[ -d "$i" ] && i="$i/APKINDEX.tar.gz"
		repo="${i%/*}"
		cd "$repo" || die "Failed to sign $i"
		sig=".SIGN.RSA.$keyname"
		openssl dgst -sha1 -sign "$privkey" -out "$sig" "$i" || die "Failed to sign $i"
		tmptargz=$(mktemp)
		tar -c "$sig" | abuild-tar --cut | gzip -9 > "$tmptargz"
		tmpsigned=$(mktemp)
		cat "$tmptargz" "$i" > "$tmpsigned"
		rm -f "$tmptargz" "$sig"
		mv "$tmpsigned" "$i"
		chmod 644 "$i"
		if [ -z "$quiet" ]; then
			echo "Signed $i"
		fi
	done
}

usage() {
	echo "abuild-sign $abuild_ver"
	echo "usage: abuild-sign [-hq] [-k PRIVKEY] [-p PUBKEY] INDEXFILE..."
	echo "options:"
	echo " -h  Show this help"
	echo " -k  The private key to use for signing"
	echo " -p  The name of public key. apk add will look for /etc/apk/keys/PUBKEY"
	exit 1
}

privkey="$PACKAGER_PRIVKEY"

while getopts "hk:p:q" opt; do
	case $opt in
	h) usage;;
	k) privkey=$OPTARG;;
	p) pubkey=$OPTARG;;
	q) quiet=yes;;
	esac
done
shift $(( $OPTIND - 1))

if [ -z "$privkey" ]; then
	echo "No private key found. Use 'abuild-keygen' to generate the keys"
	echo "Then you can either:"
	echo " 1. set the PACKAGER_PRIVKEY in $abuild_userconf"
	echo "    (Note that 'abuild-keygen -a' does this for you)"
	echo " 2. set the PACKAGER_PRIVKEY in $abuild_conf"
	echo " 3. specify the key with the -k option"
	echo ""
	exit 1
fi

if [ -z "$pubkey" ]; then
	pubkey=${PACKAGER_PUBKEY:-"${privkey}.pub"}
fi

do_sign "$@"
exit 0