#!/bin/sh

# $NetBSD: pkg_setup,v 1.4 2012/09/13 20:09:03 cheusov Exp $
#
# Copyright (c) 2011 Aleksey Cheusov <cheusov@NetBSD.org>
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.

# Variables changable by user
: ${OPSYS:=`uname -s`}
: ${OSVER:=`uname -r | sed 's/[_-]*$//'`}
: ${ARCH:=`uname -m`}
: ${MIRROR:='http://ftp.NetBSD.org'}
: ${URL:="$MIRROR/pub/pkgsrc/packages/$OPSYS/$ARCH/$OSVER"}
: ${FTP_CMD:=ftp -V}

######################################################################
set -e

usage (){
    cat <<EOF
${0##*/} downloads pkg_install binary package and installs it.
usage: ${0##*/} [options] [-- [pkg_add options]]

options:
   -h                display this screen
   -v                verbose output
   -d <url>          url to binary repository, the default is
        http://ftp.netbsd.org/pub/pkgsrc/packages/\$OPSYS/\$ARCH/\$OSVER
   -p <packages>     install specified packages in addition to pkg_install

Examples:
 pkg_setup

 pkg_setup -v -d http://example.org/pkgsrc/linux/repo -p nih

 env FTP_CMD='ftp -4V' ./pkg_setup -v \
   -d http://ftp.netbsd.org/pub/pkgsrc/packages/NetBSD/amd64/5.0 -- -P /tmp
EOF
}

vecho (){
    if test -n "$verbose"; then
	echo "$@"
    fi
}

download (){
    # $1 - URL
    file=`echo "$1" | sed -n 's,file://,,p'`
    if test -z "$file"; then
	$FTP_CMD "$1"
    else
	cp "$file" .
    fi
}

while getopts hvd:p: f; do
    case $f in
        h)
	    usage
	    exit 0;;
        v)
	    verbose=1;;
	d)
	    URL="$OPTARG";;
	p)
	    packages="$OPTARG";;
        \?)
	    exit 1;;
    esac
done
shift $(expr $OPTIND - 1)

tmpdir=`mktemp -d /tmp/pkg_setup.XXXXXX`
trap "rm -rf $tmpdir" 0
test -n "$tmpdir" || exit 1

cd "$tmpdir"

vecho 'Downloading pkg_summary.gz...'
download "$URL/All/pkg_summary.gz"
pkgname=`gzip -dc pkg_summary.gz | awk -F= '/^PKGNAME=pkg_install-[0-9]/ {print $2; exit}'`
if test -z "$pkgname"; then
    echo 'Cannot find package pkg_install in pkg_summary(5)' 1>&2
    exit 1
fi

vecho "Downloading $pkgname.tgz..."
download "$URL/All/$pkgname.tgz"
gzip -dc "$pkgname.tgz" | tar -xf -

vecho "Installing pkg_install..."
./sbin/pkg_add "$@" ./"$pkgname.tgz"

if test -n "$packages"; then
    vecho "Installing $packages..."
    PKG_PATH="$URL/All"
    export PKG_PATH
    ./sbin/pkg_add "$@" $packages
fi

vecho "done"