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#!/bin/bash
#          
# mkjail v0.4: chroot jail maker
#
# feedback: rhatto at riseup.net | GPL
#
#  Mkjail 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 any later version.
#
#  Mkjail 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., 59 Temple
#  Place - Suite 330, Boston, MA 02111-1307, USA
#

COMMON="/usr/libexec/simplepkg/common.sh"
BASENAME="`basename $0`"

if [ -f "$COMMON" ]; then
  source $COMMON
else
  echo "error: file $COMMON found, check your `basename $0` installation"
  exit 1
fi

function usage {

  echo "usage: [ARCH=arch] [VERSION=version] [ROOT=/otherroot] $BASENAME <jail-name> [template]"
  exit 1

}

function exec_post_install_scripts {

  # exec post installation scripts
  # usage: exec_post_install_script <jail-root> <jail-name>

  if [ -z "$2" ]; then
    return 1
  fi

  echo "$BASENAME: executing template scripts..."
  if [ -d "$TEMPLATE_BASE.s" ]; then
    for command in `ls $TEMPLATE_BASE.s/`; do
      if [ -x "$TEMPLATE_BASE.s/$command" ]; then
        exec $TEMPLATE_BASE.s/$command $1 $2
      fi
    done
  fi

}

function jailist_update {

  # update the jail list file
  # usage: jailist_update <jail-path>

  touch $JAIL_LIST
  if ! grep -q -e "^$1\$" $JAIL_LIST; then
    echo $1 >> $JAIL_LIST
  fi

}

if [ -z "$1" ]; then
  usage
else
  server="$1"
  eval_config $BASENAME -u
fi

if [ ! -z "$2" ]; then
  search_template $2
  result="$?"
else
  search_default_template
  result="$?"
fi

if [ "$result" != "0" ]; then
  exit 1
fi

TEMPLATE="$TEMPLATE_BASE.template"

if [ ! -d "$JAIL_ROOT/$server" ]; then
  mkdir -p $JAIL_ROOT/$server
else
  if [ ! -z "`ls $JAIL_ROOT/$server | grep -v 'lost+found'`" ]; then
    echo $BASENAME: error: folder $JAIL_ROOT/$server already exists and seens to be not empty
    echo $BASENAME: probably the jail $1 already exists
    exit 1
  fi
fi

echo "$BASENAME: instaling packages into $JAIL_ROOT/$server using $TEMPLATE..."

install_packages
copy_template_files $JAIL_ROOT/$server
set_jail_perms $JAIL_ROOT/$server
jailist_update $JAIL_ROOT/$server
exec_post_install_scripts $JAIL_ROOT $server

echo $BASENAME: done creating $server jail