#!/bin/bash
VERSION=$(sed -rn 's/^VERSION[[:space:]]*= *([0-9]+\.[0-9]+\.[0-9a-z]+).*/\1/p' < Makefile)

# figlet -f small macht einen kleinen Font
header ()
{
    echo '+------------------------------------------------------------------+'

    figlet -w 66 -c "Check_MK" | tr ' ' @  | sed '$d' | \
	while read -r line
      do
      printf "|%-66s|\n" "${line//@/ }"
    done
    echo '|                                                                  |'
    echo '| Copyright Mathias Kettner 2013             mk@mathias-kettner.de |'
    echo '+------------------------------------------------------------------+'

    cat <<EOF

This file is part of Check_MK.
The official homepage is at http://mathias-kettner.de/check_mk.

check_mk 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 in version 2.  check_mk is  distributed
in the hope that it will be useful, but WITHOUT ANY WARRANTY;  with-
out even the implied warranty of  MERCHANTABILITY  or  FITNESS FOR A
PARTICULAR PURPOSE. See the  GNU General Public License for more de-
ails.  You should have  received  a copy of the  GNU  General Public
License along with GNU Make; see the file  COPYING.  If  not,  write
to the Free Software Foundation, Inc., 51 Franklin St,  Fifth Floor,
Boston, MA 02110-1301 USA.
EOF
  if [ -n "$lastline" ] ; then
      echo
      echo "$lastline"
  fi
}

headrify ()
{
  echo "$file..."
  PERMISSIONS=$(stat -c %a "$file")
  TMP=$(mktemp .headrify.new.XXXXXX)
  suffix="${file##*.}"
  suffix="${suffix##*/}"
  headline="$(head -n1 $file)"
  if [ "${headline:0:9}" = "#!/bin/sh" ] ; then
      comment="# "
      bangpath="#!/bin/sh"
  elif [ "${headline:0:16}" = "#!/usr/bin/ksh93" ] ; then
      comment="# "
      bangpath="#!/usr/bin/ksh93"
  elif [ "${headline:0:11}" = "#!/bin/bash" ] ; then
      comment="# "
      bangpath="#!/bin/bash"
  elif [ "${headline:0:15}" = "#!/usr/bin/bash" ] ; then
      comment="# "
      bangpath="#!/usr/bin/bash"
  else
      bangpath=""
      case "${file##*/}" in
          *.openvms) comment='$!# ' ;;
          *.php)    comment="# " ; bangpath="<?php"; ;;
          *.css)    comment="" ;  bangpath="/*"; lastline="*/" ;;
          *.h|*.c|*.cc|*.h.in|*.js) comment="// " ;;
          *.conf|*.cfg)   comment="# " ;;
          *.spec|Makefile*) comment="# " ;;
          *.py|*)     comment="# "  ; bangpath="#!/usr/bin/python
# -*- encoding: utf-8; py-indent-offset: 4 -*-"; ;;
      esac
  fi

  : > $TMP
  if [ -n "$bangpath" ] ; then echo "$bangpath" > $TMP ; fi
  header | sed "s@^@$comment@" | sed 's/ *$//' >> $TMP
  echo >> $TMP
  firstline="$(head -n1 < $file)"
  secondline="$(sed -n 2p < $file)"
  thirdline="$(sed -n 3p < $file)"
  shouldbe="$comment+---------------------------------------------------"
  endline='.*Boston, MA 02110-1301 USA.'

  if [ -n "$lastline" ] ; then endline="${lastline//\//\/}" ; fi
  if [ "${firstline:0:20}" = "${shouldbe:0:20}"  \
       -o "${secondline:0:20}" = "${shouldbe:0:20}" \
       -o "${thirdline:0:20}" = "${shouldbe:0:20}" ] ; then
      sed '0,/^'"$endline"'$/d' $file | sed 1d >> $TMP
  else
      cat $file >> $TMP
  fi
  mv $TMP $file
  chmod $PERMISSIONS "$file"
}

echo "Headrifying to version $VERSION"

if [ "$#" -gt 0 ] ; then
  for file in "$@"
  do
    headrify "$file"
  done
else
  { find -not -type l -and -not -name "jquery*" -and \( \
      -name "Makefile" -or \
      -name "*.cfg" -or \
      -name "Makefile.am" -or \
      -name "configure.ac" -or \
      -name "*.in" -or \
      -name "*.h" -or \
      -name "*.cc" -or \
      -name "*.c" -or \
      -name "*.js" -or \
      -name "*.py" -or \
      -name "*.php" -or \
      -name "*.sh" -or \
      -name "*.spec" \) ; \
    rm -f checks/*~ ; ls checks/* ; echo agents/plugins/* agents/* | tr ' ' \\n | grep -vx agents/waitmax | grep -vx agents/mk-job | fgrep -v agents/hpux | fgrep -v windows | fgrep -v .exe | fgrep -v /plugins | fgrep -v .hpux ; ls agents/windows/*.cc ; echo agents/windows/Makefile ; } \
	| grep -v /Privat/ | grep -v livestatus/nagios/ | grep -vx '' | \
  while read file
  do
    headrify "$file" &
  done
fi
sleep 0.1
wait