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#!/bin/bash
#
#  add-slack-required 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.
#
#  add-slack-required 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
#
# enable a given mkbuild section
# by rhatto at riseup.net
#

CWD="`pwd`"
BASE="/path/to/mkbuilds"
MATCH="SLACK REQUIRED" # example parameter
ADD_BEFORE="on: build_package" # example section
INCLUDE=" on: slack-required" # example section

cd $BASE
FILES="`grep -R "$MATCH" * | grep -v .svn | grep -v '""' | cut -d : -f 1`"

for file in $FILES; do
  LINES="`wc -l $file | awk '{ print $1 }'`"
  CENTER="`sed = $file | sed 'N;s/\n/\t/' | grep "$ADD_BEFORE" | awk '{ print $1 }'`"
  CENTER="`echo $(($CENTER -1))`"
  END="`echo $(($LINES - $CENTER))`"
  head -n $CENTER $file > $file.new
  echo "$INCLUDE" >> $file.new
  tail -n $END $file >> $file.new
  cat $file.new > $file
  rm $file.new
done

cd $CWD