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#!/bin/bash
#
# jail-commit: update config files from a jail to a template
# feedback: rhatto@riseup.net | gpl
#
#  Jail-commit 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.
#
#  Jail-commit 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"

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

function template_merge {

  # copy differences between the jail
  # and the template in the template folder

  # usage: template_merge <jail-path>

  if [ -z "$1" ] || [ ! -d "$TEMPLATE_BASE.d" ]; then
    return 1
  fi

  echo "" > $TEMPLATE_BASE.perms
  cd $TEMPLATE_BASE.d

  for file in `find`; do
    if [[ -f "$file" && -f "$1/$file" ]]; then
      if ! diff $file $1/$file; then
        echo updating $file
        cp -af $1/$file $file
      fi
      perms="`numeric_perm $1/$file`"
      owner="`get_owner $1/$file`"
      group="`get_group $1/$file`"
      echo "$file;$owner;$group;$perms" >> $TEMPLATE_BASE.perms
    fi
  done

}

function template_svn_commit {

  if use_svn; then
      cd `basedir $TEMPLATE_BASE`
      svn commit -m "changes for `date`"
  fi

}

# TODO: command line parsing: with no arguments, jail-commit
#       does exactly what it does now, but we also need to add
#       options to choose just one jail to commit; perhaps
#       make this similar to jail-update command line behaviour.

if [ -f $JAIL_LIST ]; then
  for jailpath in `cat $JAIL_LIST`; do
    jail="`basename $jailpath`"
    search_template $jail --update
    if [ "$?" == "0" ]; then
      echo updating $jailpath...
      if [ -d "$TEMPLATE_BASE.d" ] || [ -a "$TEMPLATE_BASE.template" ]; then
        templatepkg -u $jail $jailpath
        template_merge $jailpath
        template_svn_commit $TEMPLATE_BASE
      fi
    fi
  done
fi

# main jail
search_template main --update
if [ "$?" == "0" ]; then
  if [ -a "$TEMPLATE_BASE.template" ] || [ -a "$TEMPLATE_BASE.template" ]; then
    echo updating main installation...
    templatepkg -u main
    template_merge /
    template_svn_commit $TEMPLATE_BASE
  fi
fi