build_frontend.sh

#!/bin/bash

set -exo pipefail

BUILD_ENV=$1
if [ `uname` == 'Darwin' ]; then
  OSX=1
  JSCOMPRESSOR="yuicompressor --type js"
else
  OSX=
  JSCOMPRESSOR="yui-compressor --type js"
fi

rm -Rf public
mkdir -p public/styles

function bower_components() {
  cat app/index.html | \
    grep bower_components | \
    cut -d '"' -f 2 | \
    sed -e 's/^/app/'
}


function file_hash() {
  if [ "$OSX" == "1" ]; then
    md5 -q $1
  else
    md5sum $1 | awk '{print $1}'
  fi
}

function run_sed() {
  if [ "$OSX" == "1" ]; then
    sed -e "$1" -i '' "$2"
  else
    sed -e "$1" -i "$2"
  fi
}

coffee -o public/scripts -c app/scripts

node-sass --include-path app/bower_components/foundation/scss \
  app/styles/main.scss public/styles/main.css

cp app/index.html public
cp -r app/views public/views
cp -r app/fonts public/fonts

if [ "$BUILD_ENV" == 'production' ]; then

  find public/scripts -type f | xargs cat | ngmin | $JSCOMPRESSOR > public/all.js
  ALL_FILE="all-$(file_hash public/all.js).js"
  mv public/all.js public/$ALL_FILE

  mkdir -p public/vendor

  for f in $(bower_components); do
    minified=$(echo $f | sed -e 's/.js/.min.js/')
    if [ -f $minified ]; then
      cp $minified public/vendor
    else
      cat $f | $JSCOMPRESSOR > public/vendor/$(basename $f)
    fi
  done

  find public/vendor -type f | xargs cat > public/vendor.js

  VENDOR_FILE="vendor-$(file_hash public/vendor.js).js"
  mv public/vendor.js public/$VENDOR_FILE

  run_sed "/<script src=\"\/scripts/d" public/index.html
  run_sed "/<script src=\"\/bower_components/d" public/index.html
  run_sed "s/<\/body>/<script src=\"\/$VENDOR_FILE\"><\/script><script src=\"\/$ALL_FILE\"><\/script><\/body>/" \
    public/index.html

  rm -Rf public/scripts
  rm -Rf public/vendor

else

  mkdir -p public/bower_components
  for f in $(bower_components); do
    cp $f public/bower_components
  done

fi