bash_conf

# .bash_conf - convenience functions for bash scripts to load/store config values
# last update 02/12/2016 - added write_conf() function, which can create or update config files
#
# all code by John Newman <jnn@synfin.org>

# if you make a change and want to reload this, unset _GET_CONF_LOADED
#if [ "$_GET_CONF_LOADED" != "YES" ] ; then
    CONF_DIR="$HOME/etc"
    
    function get_conf()
    {
        prog=$1
        setting=$2
    
        if [ -z "$prog" ]  || [ -z "$setting" ] ; then
            echo "" ; return 0
        fi
    
        prog_cf="${CONF_DIR}/${prog}.conf"
    
        if [ ! -f "${prog_cf}" ] ; then
            echo "" ; return 0
        fi

        if [ "$setting" = "-a" ] ; then
            cat $prog_cf | awk -F= '/^[^#].*=/ { gsub(/ *$|^ */, "", $1);  gsub(/ *$|^ */, "", $2); printf("%s -> %s\n", $1, $2); }'  
        else
            cat $prog_cf | awk -F= "/^ *$setting */ { print \$2 }" | xargs echo
        fi
    }

    function write_conf() 
    {
        prog=$1
        setting=$2
        value=$3
    
        if [ -z "$prog" ]  || [ -z "$setting" ] || [ -z "${value}" ] ; then
            echo "Usage: write_conf prog setting value" ; return 1
        fi
    
        prog_cf="${CONF_DIR}/${prog}.conf"
        setting_str="${setting}=${value}"
    
        if [ ! -f "${prog_cf}" ] ; then
            echo "${setting}=${value}" >> "${prog_cf}"
        else
            tmp_prog_cf="$(basename "${prog_cf}").$$"
            cat $prog_cf | sed "/^ *$setting */d" > "${tmp_prog_cf}"
            echo "${setting}=${value}" >> "${tmp_prog_cf}"
            mv "${tmp_prog_cf}" "${prog_cf}"
        fi
    }

    export _GET_CONF_LOADED="YES"
#fi

# vim:ts=4:sts=4:et:ai:ft=sh