#!/bin/sh

# abump - bump pkgver in APKBUILDs
# Copyright (c) 2012 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"


# version bump packages
do_bump() {
	local p rc=0 name ver section message
	local upgrade="${cvelist:+security }upgrade"
	local a
	for p; do
		name=${p%-[0-9]*}
		ver=${p#${name}-}

		# calculate APKBUILD's path
		if [ "${name#*/}" != "$name" ] && ! [ -d "$APORTSDIR/${name%/*}" ]; then
			error "'$p' should be of form 'foo-1.2.3' or 'main/foo-1.2.3'"
			rc=1; continue
		fi
		a=$(aports_buildscript "$name" || die "can't find APKBUILD for $name") || { rc=1; continue; }

		# verify APKBUILD
		(
		. "$a" || exit 1
		[ "$pkgname" = "$name" ] || die "APKBUILD has different \$pkgname for $name"
		type package | grep -q function || die "missing package() for $name"
		) || { rc=1; continue; }

		(
		set -e

		cd "${a%/*}"
		section=${PWD%/*}
		section=${section##*/}

		message="$section/$name: $upgrade to ${ver}${cvelist}"
		if [ -n "$fixes" ]; then
			message="$message

fixes #${fixes#\#}
"
		fi
		msg "$message"

		sed -i -e "s/^pkgver=.*/pkgver=$ver/" \
			-e "s/^pkgrel=.*/pkgrel=0/" \
			APKBUILD

		abuild $abuild_opts checksum all

		git add APKBUILD
		git commit -m"$message"
		) || rc=1
	done
	return $rc
}

usage() {
	cat >&2 <<__EOF__
$prog $abuild_ver - bump pkgver in APKBUILDs
Usage: $prog [-s CVE-1,CVE-2,...] [-f ISSUE] [-R|--recursive] [-k|--keep] PKGNAME-1.2.3 ...
Options:
  -s, --security CVE1,CVE-2,...  Security update
  -f, --fixes ISSUE              Fixes ISSUE
  -R, --recursive                Run abuild with -R for recursive building
  -k, --keep                     Run abuild with -k to keep existing packages
  -q, --quiet
  -h, --help                     Show this help

__EOF__
}

keep=
recursive="-r"
cvelist=
fixes=

[ -n "$APORTSDIR" ] || error "can't locate \$APORTSDIR"
git rev-parse 2>/dev/null || die "not in a git tree"

args=`getopt -o s:Rkqh --long security:,recursive,keep,quiet,help -n "$prog" -- "$@"`
if [ $? -ne 0 ]; then
	usage
	exit 2
fi
eval set -- "$args"
while true; do
	case $1 in
		-s|--security) cvelist=" ($2)"; shift;;
		-f|--fixes) fixes="$2"; shift;;
		-R|--recursive) recursive="-R";;
		-k|--keep) keep="-k";;
		-q|--quiet) quiet=1;; # suppresses msg
		-h|--help) usage; exit;;
		--) shift; break;;
		*) exit 1;; # getopt error
	esac
	shift
done
if [ $# -eq 0 ]; then
	usage
	exit 2
fi

abuild_opts="$recursive $keep"

do_bump "$@"