run

#!/bin/bash

# Colors
ESC_SEQ="\x1b["
COL_RESET=$ESC_SEQ"39;49;00m"
COL_RED=$ESC_SEQ"31;01m"
COL_GREEN=$ESC_SEQ"32;01m"
COL_YELLOW=$ESC_SEQ"33;01m"
COL_BLUE=$ESC_SEQ"34;01m"
COL_MAGENTA=$ESC_SEQ"35;01m"
COL_CYAN=$ESC_SEQ"36;01m"

# 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 -e "$COL_RED ✘ ${1} $COL_RESET"
}

# display a message in green with a tick by it
# example
# echo echo_fail "Yes"
function echo_pass {
  echo -e "$COL_GREEN ✔ ${1} $COL_RESET"
}

function echo_green {
  echo -e "$COL_GREEN ${1} $COL_RESET"
}

function echo_yellow {
  echo -e "$COL_YELLOW ${1} $COL_RESET"
}

function echo_magenta {
  echo -e "$COL_MAGENTA ${1} $COL_RESET"
}

if [ $(program_is_installed npm) != 1 ]
    then
        echo_fail "Can't start installation \n  ERROR: Missing 'npm' command, please make sure to install NodeJS first.";
        exit
fi

if [ $(program_is_installed bower) != 1 ]
    then
        echo_fail "Can't start installation \n  ERROR: Missing 'bower' command, please make sure to install Bower first.";
        echo_yellow "You can install Bower using the command"
        echo_magenta "    npm install -g bower";
        exit
fi

if [ $(program_is_installed grunt) != 1 ]
    then
        echo_fail "Can't start installation \n  ERROR: Missing 'grunt' command, please make sure to install GruntJS first.";
        echo_yellow "You can install GruntJS using the command";
        echo_magenta "    npm install -g grunt-cli";
        exit
fi

if [ $(program_is_installed compass) != 1 ]
    then
        echo_fail "Can't start installation \n  ERROR: Missing 'compass' command, please make sure to install Ruby and Compass first.";
        echo_yellow "Please find the correct Ruby installation instructions for your system.";
        echo_yellow "Once done, you can install Compass using the command"
        echo_magenta "    gem install compass";
        echo_yellow "Note that you may need to use sudo for the above command."
        exit
fi

echo_pass "npm installed";
echo_pass "bower installed";
echo_yellow "  Installing node dependencies...";
npm install
echo_pass "node dependencies installed"
echo_yellow "  Installing bower dependencies...";
bower install --allow-root
echo_pass "bower dependencies installed"
echo_pass "Dependencies installed successfully"
echo_green "Starting app at localhost port 9000..."
grunt watch