apply_config.sh

#!/usr/bin/env bash

##########################################################################################
# Apply config vars to *.source files
#
# USAGE:
# $ script/apply_config [file1] [file2] [...]
#
# EXAMPLE:
# $ script/apply_config dev joe
# applies config/base, config/dev, and config/joe to vars found in *.source files
#
# config/base is always sourced first followed by any files passed in on the command line
#
##########################################################################################

cd -- "${0%/*}"
# set -x
set -e

args=`echo $@`
arr=( "base" ${args} )

cd ..

# Use existing config if no params were passed in
if [ -z "${args}" ] && [ -e "config/applied_config" ]; then
    arr=( $(cat config/applied_config) )
else
    rm -f config/applied_config
    for i in ${arr[@]}; do
        echo ${i} >> config/applied_config
    done
fi

echo "========================================="
echo "Applying config/"
for file in ${arr[@]}; do
    echo "  ${file}"
    source ./config/${file}
done
echo ''

apply_config_to=( cloudstore/db cloudstore/rel/files cloudstore/test router/rel/files apps/auth )

for d in ${apply_config_to[@]}; do
    if [ -d ${d} ]; then
        # sf -> source file
        for sf in `find ./${d} -name *.source`; do
            tf=${sf%.*} # target file
            echo ${tf}
            cp ${sf} ${tf}
            > ${tf}
IFS="
"
            for line in $(< ${sf}); do
                z=`echo ${line} | sed 's_\"_\\\"_g'`
                z=`echo ${z} | sed 's_\\\$_CF-CONFIG-DOLLAR_g'`
                x=`echo ${z} | sed -n "s_@@\([^@]*\)@@_$\{\1\}_g p"`
                if [ -n "${x}" ]; then
                    y=`eval echo \"${x}\"`
                    y=`echo ${y} | sed 's_CF-CONFIG-DOLLAR_\\\$_g'`
                    echo ${y} >> ${tf}
                else
                    echo ${line} >> ${tf}
                fi
            done # < ${sf}
        done
    fi
done

echo ""
echo "DONE applying config"
echo "========================================="
echo ""