#!/bin/sh
#
# Copyright (C) 2008  Mikhail Gusarov <dottedmag@altlinux.org>
#
# hsh wrapper for building packages on tmpfs
#
# This file is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
#

. gear-sh-functions
. shell-getopt

print_version()
{
        cat <<EOF
$PROG version $PROG_VERSION
Written by Mikhail Gusarov <dottedmag@altlinux.org>

Copyright (C) 2008  Mikhail Gusarov <dottedmag@altlinux.org>
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
EOF
        exit
}

hash_repo_dir() {
    echo "$1" | sed -e 's,/,_,g'
}

GETOPT_ALLOW_UNKNOWN=1
TEMP=`getopt -n $PROG -o 'h,V' -l 'repo:,repo-bin:,repo-src:,help,version' -- "$@"` || show_usage
eval set -- "$TEMP"

while :; do
    case "$1" in
        --repo|--repo-bin|--repo-src)
            option=$1
            show_usage "hsh(1) option $1 is not supported in $PROG"
            exit
            ;;
        -h|--help)
            hsh -h | awk 'BEGIN { show=1 }
/^hsh/ { $1="hsh-tmpfs"; $4="package in tmpfs" }
/^Usage:/ { $0="Usage: hsh-tmpfs [options] [<path-to-repodir>] <package>..." }
/^<path-to-workdir>/ { $1="<path-to-repodir>" }
/--repo/ { show=0 }
/--save-fakeroot/ { show=1 }
{ if(show) print }'
            exit
            ;;
        -V|--version)
            print_version
            ;;
        --)
            shift
            break
            ;;
    esac
    shift
done

if [ $# -eq 0 ]; then
    show_usage "At least one argument is required"
fi

REPODIR=$1
shift

mkdir -p "$REPODIR" || show_usage "Unable to create repository in $REPODIR"
REPODIR=`realpath $REPODIR`

WORKDIR=/tmp/.private/$USER/`hash_repo_dir "$REPODIR"`
mkdir -p "$WORKDIR" || show_usage "Unable to create hasher worker directory in $WORKDIR"

exec hsh --repo="$REPODIR" "$WORKDIR" "$@"