Coffeescript Nave shim

coffee

#!/usr/bin/env zsh

set -e

function nave_version_file {
    file="$(pwd)/.nave-version"
    if [ -f "$file" ]; then
        echo "$file"
    elif `git rev-parse &>/dev/null`; then
        file="$(git rev-parse --show-toplevel)/.nave-version"
        if [ -f "$file" ]; then
            echo "$file"
        fi
    fi
}

function nave_version {
    file=$(nave_version_file)
    if [[ "$file" ]]; then
        head -n1 $(nave_version_file)
    fi
}

if [ -z "$NAVE" ]; then
    version=$(nave_version)
    if [[ "$version" ]]; then
        exec nave use "$version" coffee "$@"
    fi
    echo 'no nave version!' >&2
    exit 1
fi

exec "$NAVEPATH/coffee" "$@"