botocfg

#!/bin/sh

BOTOFILE=${HOME}/.boto

### Helpers
helper_profile_name() {
    printf $(basename $1) | cut -d. -f3
}

### List all the configuration files we have for boto
botocfg_list() {
    for i in $(ls ${HOME}/.boto.*) ; do
        chosen=" "
        name=$(helper_profile_name $i)
        [ "$name" = "$(botocfg_get)" ] && chosen=*
        printf " [ %s ] %s (%s)\n" "$chosen" "$name" "$i"
    done
}

### Get the current boto file in use
botocfg_get() {
    if [ -f $BOTOFILE ] ; then
        file=$(readlink $BOTOFILE)
        helper_profile_name $file
    fi
}

### Set the current
botocfg_set() {
    name=$1

    # clean up old references if it's a link
    [ -L $BOTOFILE ] && rm $BOTOFILE;

    # We should bail out if the .boto file is not a link. We don't
    # want to delete user created data
    [ -f $BOTOFILE ] && {
        echo "ERROR: This script doesn't know how to manage your file '$BOTOFILE'"
        echo
        echo "Move your '$BOTOFILE' to '$BOTOFILE.something' and then call"
        echo "this script with -s specifying which file should be the main one:"
        echo
        echo " $ $(basename $0) -s something"
        exit 1
    }

    # Create the link between $BOTOFILE.$name and $BOTOFILE
    if [ -f $BOTOFILE.$name ] ; then
        ln -s $BOTOFILE.$name $BOTOFILE
    else
        echo "ERROR: File $BOTOFILE.$name does not exist, can't proceed."
    fi
}

### Parse arguments and call one of the `botocfg_*` functions
ARGS=$(getopt -o lgs:a: -l "list,get,set:,add:" -n "$1" -- "$@");
eval set -- "$ARGS";
while true ; do
    case "$1" in
        -l|--list) botocfg_list   ; shift   ;;
        -g|--get)  botocfg_get    ; shift   ;;
        -s|--set)  botocfg_set $2 ; shift 2 ;;
        -a|--add)  botocfg_add $2 ; shift 2 ;;
        --) shift ; break ;;
        *) "Failed to parse command line arguments" ; exit 1 ;;
    esac
done