Fetch client-side dependencies for a static site

fetch-libs.sh

#!/bin/sh

LIBS_DIR="./src/scripts/libs"

COLOR_RED="\033[0;31m"
COLOR_PURPLE="\033[0;35m"
COLOR_BRIGHT_PURPLE="\033[1;35m"
COLOR_GREEN="\033[0;32m"
COLOR_RESET="\033[0m"

function fetch {
    filename=$1; url=$2
    printf "$COLOR_PURPLE+ $COLOR_BRIGHT_PURPLE%-26s$COLOR_RESET " $filename
    wget --timeout 2 --tries 1 -O "$LIBS_DIR/$filename" $url 2> /dev/null

    if [ $? -ne 0 ]; then
        printf "$COLOR_RED%s$COLOR_RESET\n" '✗'
    else
        printf "$COLOR_GREEN%s$COLOR_RESET\n" '✓'
    fi
}

# Removing existing libs...
rm $LIBS_DIR/*.js > /dev/null

fetch 'zepto.js'                    http://zeptojs.com/zepto.js
fetch 'jquery.js'                  https://cdnjs.cloudflare.com/ajax/libs/jquery/1.8.2/jquery.js
fetch 'jquery.cookie.js'           https://raw.github.com/carhartl/jquery-cookie/master/jquery.cookie.js
fetch 'jquery.base64.js'           https://raw.github.com/carlo/jquery-base64/master/jquery.base64.js
fetch 'lodash.js'                  https://raw.github.com/bestiejs/lodash/v0.9.0/lodash.js
fetch 'backbone.js'                 http://backbonejs.org/backbone.js
fetch 'backbone.layoutmanager.js'  https://raw.github.com/tbranyen/backbone.layoutmanager/master/backbone.layoutmanager.js
fetch 'backbone.statemachine.js'   https://raw.github.com/sebpiq/backbone.statemachine/master/backbone.statemachine.js
fetch 'backbone.relational.js'     https://raw.github.com/PaulUithol/Backbone-relational/master/backbone-relational.js
fetch 'handlebars.runtime.js'       http://cloud.github.com/downloads/wycats/handlebars.js/handlebars.runtime-1.0.rc.1.js
fetch 'backbone.queryparams.js'    https://raw.github.com/jhudson8/backbone-query-parameters/master/backbone.queryparams.js
fetch 'spin.js'                     http://fgnass.github.com/spin.js/dist/spin.js