#!/bin/sh

set -e

PRG=$(basename "$0")

exit() {
	echo "ERROR: $1"
	exit 1
}

showhelp() {
	cat <<EOF
Usage:   $PRG POOL [ DISTRIBUTION [ OTHERMIRROR] ]

Examples:
    $PRG sarge
    $PRG sarge+hacks sarge 'deb http://example.com/ sarge hacks'
EOF
}

if [ $# -eq 0 ]; then
	showhelp
	exit1 "not enough parameters"
fi

pool=$1
distro=${2:-$pool}

basepath="/var/cache/pbuilder/cow-$pool"
aptcache="/var/cache/pbuilder/aptcache-$pool/"
buildresult="$HOME/src/pbuild-$pool/"

makepaths=''
for path in "$basepath" "$aptcache" "$buildresult"; do
	if [ ! -d "$path" ]; then
		echo "W: path \"$path\" does not exist"
		makepaths='yes'
	fi
done
if [ "$makepaths" = 'yes' ]; then
	if [ "$force" != 'yes' ]; then
		echo -n 'Create the missing paths (y/N)? '
		read response
		case "$response" in
		    y|Y)
			:
			;;
		    *)
			exit1 "Cannot continue without those missing paths"
			;;
		esac
	fi
	mkdir -p "$buildresult"
	sudo mkdir -p "$basepath" "$aptcache"
i

sudo cowbuilder --create \
	--buildresult "$buildresult" \
	--distribution "$distro" \
	--basepath "$basepath" \
	--aptcache "$aptcache" \
	${3:+--othermirror "$3"}