buildconfig

export LC_ALL=C
export DEBIAN_FRONTEND=noninteractive

DEFAULT_RUBY_GEMS='rake rack'

if perl -v >/dev/null 2>/dev/null; then
  RESET=`perl -e 'print("\e[0m")'`
  BOLD=`perl -e 'print("\e[1m")'`
  YELLOW=`perl -e 'print("\e[33m")'`
  BLUE_BG=`perl -e 'print("\e[44m")'`
elif python -V >/dev/null 2>/dev/null; then
  RESET=`echo 'import sys; sys.stdout.write("\033[0m")' | python`
  BOLD=`echo 'import sys; sys.stdout.write("\033[1m")' | python`
  YELLOW=`echo 'import sys; sys.stdout.write("\033[33m")' | python`
  BLUE_BG=`echo 'import sys; sys.stdout.write("\033[44m")' | python`
else
  RESET=
  BOLD=
  YELLOW=
  BLUE_BG=
fi

function minimal_apt_get_install()
{
  if [[ ! -e /var/lib/apt/lists/lock ]]; then
    apt-get update
  fi
  apt-get install -y --no-install-recommends "$@"
}

function apt_add_ppa()
{
    add-apt-repository -y $1
    apt-get update
}

function cleanup_apt()
{
  run apt-get -y clean
  run rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/* /var/log/dpkg.log /var/log/apt/*
}

function header()
{
  local title="$1"
  echo "${BLUE_BG}${YELLOW}${BOLD}${title}${RESET}"
  echo "------------------------------------------"
}

function run()
{
  echo "+ $@"
  "$@"
}

function create_rvm_wrapper_script()
{
  local name="$1"
  local rvm_id="$2"
  local command="$3"

        rm -f "/usr/bin/$name"

  echo "+ Creating /usr/bin/$name"
  echo '#!/bin/sh' >> "/usr/bin/$name"
  echo exec "/usr/local/rvm/wrappers/$rvm_id/$command" '"$@"' >> "/usr/bin/$name"
  chmod +x "/usr/bin/$name"
}