start.sh

# borrowed from https://gist.github.com/JamieMason/4761049

#!/bin/bash

# Functions ==============================================

# return 1 if global command line program installed, else 0
# example
# echo "node: $(program_is_installed node)"
function program_is_installed {
  # set to 1 initially
  local return_=1
  # set to 0 if not found
  type $1 >/dev/null 2>&1 || { local return_=0; }
  # return value
  echo "$return_"
}

# display a message in red with a cross by it
# example
# echo echo_fail "No"
function echo_fail {
  # echo first argument in red
  printf "\e[31m✘ ${1} \033[0m"
}

# display a message in green with a tick by it
# example
# echo echo_fail "Yes"
function echo_pass {
  # echo first argument in green then reset colors to normal
  printf "\e[32m✔ ${1} \033[0m"
}

# echo pass or fail
# example
# echo echo_if 1 "Passed"
# echo echo_if 0 "Failed"
function echo_if {
  if [ $1 == 1 ]; then
    echo_pass $2
  else
    echo_fail $2
  fi
}

echo
echo "Thanks for reviewing my code challenge!"
echo "Checking if necessary dev environment exists..."
echo

NODE_INSTALLED=$(program_is_installed node)
NPM_INSTALLED=$(program_is_installed npm)

echo "node $(echo_if $NODE_INSTALLED)"
echo "npm $(echo_if $NPM_INSTALLED)"

if [ "$NODE_INSTALLED" == 0 ]; then
  printf "\e[31mPlease install Node.js first."
  exit
fi

if [ "$NPM_INSTALLED" == 0 ]; then
  printf "\e[31mPlease install npm first. It's surprising you have Node.js installed, but not npm."
  exit
fi

echo
echo "Installing dependencies."
echo
npm install
echo

echo
echo "Bundling components."
echo
node -e "require('grunt').tasks(['browserify','concat_css']);"
killall node
echo

printf "Launching application and starting server.}"

PYTHON_INSTALLED=$(program_is_installed python)

if [ "$PYTHON_INSTALLED" == 0 ]; then
  printf "Please open http://localhost:3000 in your favorite browser"
  node ./bin/www
else
  node ./bin/www & python -mwebbrowser http://localhost:3000
fi

exit