direnv code for installing https://github.com/zyedidia/eget

use_eget

is_unixy=true
do_install=false

if [[ "$OSTYPE" == "linux-gnu"* ]]; then  
  if ! type "eget" > /dev/null; then
    echo "not installed"
    do_install=true
  fi
elif [[ "$OSTYPE" == "darwin"* ]]; then
  # Mac OSX
  if ! type "eget" > /dev/null; then
    do_install=true
  fi
elif [[ "$OSTYPE" == "cygwin" ]]; then
  # POSIX compatibility layer and Linux environment emulation for Windows
  if ! type "eget" > /dev/null; then
    do_install=true
  fi
elif [[ "$OSTYPE" == "msys" ]]; then
  # Lightweight shell and GNU utilities compiled for Windows (part of MinGW)
  if ! type "eget" > /dev/null; then
    do_install=true
  fi
elif [[ "$OSTYPE" == "win32" ]]; then
  # I'm not sure this can happen.
  value=$(cmd /c "(help eget > nul || exit 0) && where eget > nul 2> nul")
  if value; then
    do_install=true
  fi
elif [[ "$OSTYPE" == "freebsd"* ]]; then
   if ! type "eget" > /dev/null; then
    do_install=true
  fi
else
  echo "ERROR: unknown platform" >&2
  exit -1
fi

if $do_install; then
  if $is_unixy; then
    curl https://zyedidia.github.io/eget.sh | sh
    echo "moving to /usr/bin"
    if type "sudo" > /dev/null; then
      sudo mv ./eget /usr/bin
    else
      mv ./eget /usr/bin
    fi
  else
    choco install eget
  fi
fi