Drop at script/setup to keep everyone up to date, dependency-wise.

setup.sh

#!/bin/bash

DEPS="YES"

check-dependency() {
  name=$1
  program=${2-"brew list $1"}
  if ! eval $program &>/dev/null; then
    echo "This app requires $name to run, but it is not installed."
    echo "  brew install $name"
    echo
    DEPS="NO"
    return 1
  fi
  return 0
}

check-dependencies() {
  check-dependency postgresql  'which psql'
  check-dependency imagemagick 'which convert'
  check-dependency zeromq

  if [ $DEPS == "NO" ]; then
    echo "Dependencies not met. Please install them and re-run $0"
    exit 1
  else
    echo "dependencies okay"
  fi
}

check-bundle() {
  if bundle check &>/dev/null ; then
    echo "bundle okay"
  else
    bundle
  fi
}

setup-database() {
  for example in config/*.example.yml; do
    local dest="${example%.example.yml}.yml"
    if [ ! -f "$dest" ]; then
      cp "$example" $dest
    fi
  done 2>/dev/null

  rake db:create db:migrate db:seed db:test:prepare 2>/dev/null
}

check-dependencies
check-bundle
setup-database

echo
echo "You're all set!"