install_deps

#!/usr/bin/env sh
set -e

DEPS="wget tar make diffutils texinfo"
RCDEPS="$DEPS gcc g++ lua5.3 zlib jansson libusb-1.0 libgmp"
PKM=""

echo Checking platform...
if type yum >/dev/null 2>&1; then
  echo Found yum, assuming Red Hat.
  DEPS="$DEPS gcc gcc-c++ lua-devel zlib-devel jansson-devel libusb-devel gmp-devel"
  PKM="yum"
elif type zypper >/dev/null 2>&1; then
  echo Found zypper, assuming openSUSE.
  DEPS="$DEPS gcc gcc-c++ lua53 zlib-devel libjansson-devel libusb-1_0-devel gmp-devel"
  PKM="zypper"
elif type emerge >/dev/null 2>&1; then
  echo Found emerge, assuming Gentoo.
  if type equo >/dev/null 2>&1; then
    read -p "Warning: Also found equo. If you're running Sabayon, then this will probably not work. Continue? (y/n) " yn
    case "$yn" in [Yy]*) ;; *) exit;; esac
  fi
  DEPS="$DEPS gcc lua:5.3 zlib jansson libusb gmp"
  PKM="emerge"
elif type pkg >/dev/null 2>&1; then
  echo Found pkg, assuming FreeBSD.
  echo Note: Configure with 'CPPFLAGS=-I/usr/local/include LDFLAGS=-L/usr/local/lib'.
  echo Note: gsed needs to be in your PATH as 'sed'.
  echo Note: Make with gmake.
  DEPS="texinfo lua53 zlib jansson gmake gsed gmp"
  PKM="pkg"
elif type brew >/dev/null 2>&1; then
  echo Found brew, assuming macOS.
  echo Note: gsed needs to be in your PATH as 'sed'.
  DEPS="lua zlib jansson libusb gnu-sed gmp"
  PKM="brew"
elif type apt >/dev/null 2>&1; then
  echo Found apt, assuming Debian.
  DEPS="$DEPS gcc g++ liblua5.3-dev zlib1g-dev libjansson-dev libusb-1.0-0-dev libgmp-dev"
  PKM="apt"
elif type pacman >/dev/null 2>&1; then
  if test "x`uname -o`" = xMsys; then
    echo Found pacman with \`uname -o\` = "Msys", assuming MSYS2.
    DEPS="$DEPS mingw-w64-i686-gcc mingw-w64-i686-lua mingw-w64-i686-zlib mingw-w64-i686-jansson mingw-w64-i686-libusb mingw-w64-i686-gmp"
    PKM="pacman"
  else
    echo Found pacman, assuming Arch.
    DEPS="$DEPS gcc lua zlib jansson libusb"
    PKM="pacman"
  fi
fi

if test -z "$PKM"; then
  echo Unrecognized platform, skipping automatic package installation.
  echo Make sure these packages are installed: $RCDEPS
else
  echo Installing dependencies...
  case "$PKM" in
    yum)    yum install -y $DEPS;;
    zypper) zypper install -y $DEPS;;
    emerge) emerge -n --autounmask-write $DEPS || ( dispatch-conf && emerge -n $DEPS );;
    pkg)    pkg install $DEPS;;
    brew)   brew install $DEPS;;
    apt)    apt install -y $DEPS;;
    pacman) pacman -S --needed --noconfirm $DEPS;;
  esac
fi