#! /bin/sh

set -e

exe="$0"
cmd="$1"
remote="$2"

usage() {
    printf "Usage: %s [push|pull] REMOTE\n" "$exe"
    exit 1
}

case "$cmd" in
    push | pull) ;;
    *) usage ;;
esac

case "$remote" in
    '') usage ;;
    *) ;;
esac

remote_url=$(git remote get-url "$remote")
remote_file="${remote_url}/description"
local_file='.git/description'

case "$cmd" in
    push) scp "$local_file" "$remote_file";;
    pull) scp "$remote_file" "$local_file";;
esac