#!/usr/bin/env bash

>&2 echo "#WARNING! This tool is depreacated due to problems it efectively is cat now."

cat $2

sed=sed
grep=grep
awk=awk
if [ -f /opt/local/bin/sed ]
then
    sed=/opt/local/bin/sed
fi
if [ -f /opt/local/bin/awk ]
then
    awk=/opt/local/bin/awk
fi
if [ -f /opt/local/bin/grep ]
then
    grep=/opt/local/bin/grep
fi

IP=$(ifconfig net0 | $grep inet | $awk "{print \$2}")


example=$1
old=$2
get() {
    var=$2
    conf=$1

    res=$($grep "^[ ]*${var}[ ]*=" "${conf}" | $sed "s/.*${var}[ ]*=[ ]*//")
    if [ -z "${res}" ]
    then
        exit 1
    fi
    echo "${res}"
}


while read line
do
    if echo "${line}" | $grep -v '^#' | $grep -v '^$' > /dev/null
    then
        key=$(echo "${line}" | $sed 's/[ ]*=.*//')
        if val=$(get "${old}" "${key}")
        then
            echo "${key} = ${val}"
        else
            echo "${line}" | $sed "s/127.0.0.1/${IP}/"
        fi
    elif echo "${line}" | $grep '^#\+[ ]*.\+=.\+' > /dev/null
    then
        ## If the line looks like a commented value try to find that
        ## git puvalue in the old config to see if we need to uncomment it
        key=$(echo "${line}" | $sed 's/[ ]*=.*$//' | $sed 's/^#*[ ]*//')
        if val=$(get "${old}" "${key}")
        then
            echo "${key} = ${val}"
        else
            echo "${line}" | $sed "s/127.0.0.1/${IP}/"
        fi
    else
        echo "${line}" | $sed "s/127.0.0.1/${IP}/"

    fi
done < "${example}"