#!/bin/sh
#
# Copyright © 2004, 2005, 2007, 2009 Guillem Jover <guillem@debian.org>
#
# This program 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.
#

set -e
set -u

pkg=inetutils
pkg_file=libinetutils

action=$1
shift

get_version()
{
  local d=$1

  echo $(grep ^AC_INIT $d/configure.ac | sed -e 's/.*, *\[\([^,]*\)\] *,.*/\1/')
}

echo "-> getting the source."
case "$action" in
  snapshot)
    echo " -> making a git snapshot."

    snapshot_dir="$pkg-snapshot"

    if [ -d $snapshot_dir ]; then
      cd $snapshot_dir
      git pull
      cd ..
    else
      git clone git://git.sv.gnu.org/inetutils.git $snapshot_dir
    fi

    echo " -> bootstrapping source tree form gnulib."
    cd $snapshot_dir
    ./bootstrap --copy
    cd ..

    version="$(get_version $snapshot_dir)+$(date +%Y%m%d)"
    ;;
  tarball)
    echo " -> unpacking upstream tarball."

    upstream_dir="$pkg-tarball"
    upstream_tarball=$1

    mkdir $upstream_dir
    cd $upstream_dir
    tar xzf ../$upstream_tarball --strip 1
    cd ..

    version=$(get_version $upstream_dir)
    ;;
esac

tarball=${pkg}_${version}.orig.tar.gz
tree=${pkg}-${version}

echo "-> filling the working tree."
case "$action" in
  snapshot)
    cp -al $snapshot_dir $tree
    ;;
  tarball)
    mv $upstream_dir $tree
    ;;
esac

if ! [ -e $tree/$pkg_file ]
then
  echo "error: no $pkg tree available."
  exit 1
fi

echo "-> cleaning tree."
# Clean non-free stuff
: nothing to clean

# Clean junk from CVS to git conversion
rm -rf $tree/Attic

# Clean bootstrap and autofoo stuff
rm -rf $tree/autom4te.cache
rm -rf $tree/gnulib

# Clean vcs stuff
find $tree -name 'CVS' -o -name '.cvsignore' -o \
           -name '.git' -o -name '.gitignore' | xargs rm -rf

echo "-> creating new tarball."
tar czf $tarball $tree

echo "-> cleaning directory tree."
rm -rf $tree