Split Buildroot board configuration from toolchain/package configuration

split.sh

#!/bin/bash

if [[ $# -ne 3 ]]
then
  echo "usage: $0 <config_file> <board_config_file> <rest_config_file>"
  exit 0
fi

CONFIG=$1
BOARD=$2
REST=$3

while read entry
do
  if [[ $entry =~ ^[A-Z] ]]
  then
    key=$(echo $entry | awk -F'=' '{ print $1 }')
    value=$(echo $entry | awk -F'=' '{ print $2 }')
    if [[ `grep $key $BOARD | wc -l` -gt 0 ]]
    then
      # This entry is part of the board config
          sed -re 's/$key=(.*)/$key=$value/g' $BOARD > $BOARD.new
        else
          # This entry is part of the rest (toolcain config, package selection, etc)
          echo $key=$value >> $REST
        fi
  fi
done < $CONFIG