install.sh

#!/bin/bash
set -u

# Check if script is run non-interactively (e.g. CI)
# If it is run non-interactively we should not prompt for passwords.
if [[ ! -t 0 || -n "${CI-}" ]]; then
  NONINTERACTIVE=1
fi

# string formatters
if [[ -t 1 ]]; then
  tty_escape() { printf "\033[%sm" "$1"; }
else
  tty_escape() { :; }
fi
tty_mkbold() { tty_escape "1;$1"; }
tty_underline="$(tty_escape "4;39")"
tty_blue="$(tty_mkbold 34)"
tty_red="$(tty_mkbold 31)"
tty_bold="$(tty_mkbold 39)"
tty_reset="$(tty_escape 0)"

shell_join() {
  local arg
  printf "%s" "$1"
  shift
  for arg in "$@"; do
    printf " "
    printf "%s" "${arg// /\ }"
  done
}

chomp() {
  printf "%s" "${1/"$'\n'"/}"
}

ohai() {
  printf "${tty_blue}==>${tty_bold} %s${tty_reset}\n" "$(shell_join "$@")"
}

warn() {
  printf "${tty_red}Warning${tty_reset}: %s\n" "$(chomp "$1")"
}

abort() {
  printf "${tty_red}$1 ${tty_reset}\n"
  exit 1
}

execute() {
  if ! "$@"; then
    abort "$(printf "Failed during: %s" "$(shell_join "$@")")"
  fi
}

have_sudo_access() {
  local -a args
  if [[ -n "${SUDO_ASKPASS-}" ]]; then
    args=("-A")
  elif [[ -n "${NONINTERACTIVE-}" ]]; then
    args=("-n")
  fi

  if [[ -z "${HAVE_SUDO_ACCESS-}" ]]; then
    if [[ -n "${args[*]-}" ]]; then
      SUDO="/usr/bin/sudo ${args[*]}"
    else
      SUDO="/usr/bin/sudo"
    fi
    if [[ -n "${NONINTERACTIVE-}" ]]; then
      ${SUDO} -l mkdir &>/dev/null
    else
      ${SUDO} -v && ${SUDO} -l mkdir &>/dev/null
    fi
    HAVE_SUDO_ACCESS="$?"
  fi

  if [[ "$HAVE_SUDO_ACCESS" -ne 0 ]]; then
    abort "Need sudo access on macOS (e.g. the user $USER to be an Administrator)!"
  fi

  return "$HAVE_SUDO_ACCESS"
}

execute_sudo() {
  local -a args=("$@")
  if have_sudo_access; then
    if [[ -n "${SUDO_ASKPASS-}" ]]; then
      args=("-A" "${args[@]}")
    fi
    ohai "/usr/bin/sudo" "${args[@]}"
    execute "/usr/bin/sudo" "${args[@]}"
  else
    ohai "${args[@]}"
    execute "${args[@]}"
  fi
}
getc() {
  local save_state
  save_state=$(/bin/stty -g)
  /bin/stty raw -echo
  IFS= read -r -n 1 -d '' "$@"
  /bin/stty "$save_state"
}

wait_for_user() {
  local c
  echo
  echo "Press RETURN to continue or any other key to abort"
  getc c
  # we test for \r and \n because some stuff does \r instead
  if ! [[ "$c" == $'\r' || "$c" == $'\n' ]]; then
    exit 1
  fi
}

# First check if the OS is MacOSX
if [[ "$(uname)" = "Darwin" ]]; then
    OS_MACOSX=1
else
    abort "$(cat <<EOABORT
NativeLib installer only works on MacOSX. 
For other OSes you can manually download it and place somewhere your shell find it. See:
  ${tty_underline}https://github.com/DrMoriarty/nativelib-cli${tty_reset}
EOABORT
)"
fi

if ! command -v curl >/dev/null; then
    abort "$(cat <<EOABORT
You must install cURL before installing NativeLib. See:
  ${tty_underline}https://github.com/DrMoriarty/nativelib-cli${tty_reset}
EOABORT
)"
fi

ohai "$(cat <<EOF
 This script will install nativelib into /usr/local/bin directory.
You may be prompted for your password in order to perform install operations.
EOF
)"

wait_for_user

curl -fsSL https://raw.githubusercontent.com/DrMoriarty/nativelib-cli/HEAD/nativelib -o /tmp/nativelib

execute_sudo "mv" "/tmp/nativelib" "/usr/local/bin/"
execute_sudo "chmod" "755" "/usr/local/bin/nativelib"

echo "Run ${tty_bold}nativelib -h${tty_reset} for help"