configure

#!/bin/bash

# configure - helper script to aid CMake migration
# by carstene1ns 2024, released under the MIT license

set -e
#set -x

# helper functions

colorize() {
  RESET="\e[0m"
  BOLD="\e[1m"
  BLUE="${BOLD}\e[34m"
  GREEN="${BOLD}\e[32m"
  RED="${BOLD}\e[31m"
  YELLOW="${BOLD}\e[33m"
}

message() {
  printf "${GREEN}==>${RESET} ${1}\n"
}

argument() {
  printf "${BLUE}${1} ->${RESET} ${2}\n"
}

argument_simple() {
  printf "${BLUE}${1} ->${RESET} For ${2} support use '-D${3}=ON|OFF'\n"
}

warning() {
  printf "${YELLOW}WARNING:${RESET}${BOLD} ${1}${RESET}\n" >&2
}

error() {
  printf "${RED}ERROR:${RESET}${BOLD} ${1}${RESET}\n" >&2
}

# variables
show_dirinfo=0
show_crossinfo=0
show_libflaginfo=0
arguments=""

# main

# check for terminal output
test -t 0 && colorize

warning "After version 0.8.1.1 (mid 2025) the support for\n \
        GNU autotools has been removed.\n \
        We migrated to CMake (https://cmake.org) exclusively.\n \
        Please check the docs/BUILDING.md document. Now follows a\n \
        generated help based on provided arguments for pointers\n \
        how to migrate your build settings to cmake invocation.\n"

while [[ $# -gt 0 ]]; do
  case $1 in
    # ignore
    --help=*|-h|--help|-q|--quiet|--silent)
      shift
      ;;

    # directories
    --*dir=*)
      show_dirinfo=1
      shift
      ;;
    --*dir)
      show_dirinfo=1
      shift 2
      ;;

    # crossbuild
    --build=*|--host=*)
      show_crossinfo=1
      shift
      ;;
    --build|--host)
      show_crossinfo=1
      shift 2
      ;;

    # variables
    *_LIBS=*|*_CFLAGS=*)
      show_libflaginfo=1
      shift
      ;;

    # libraries
    --disable-fmmidi*|--enable-fmmidi*)
      argument_simple "$1" "FMMidi" "PLAYER_ENABLE_FMMIDI"
      shift
      ;;

    --disable-drwav*|--enable-drwav*)
      argument_simple "$1" "drwav" "PLAYER_ENABLE_DRWAV"
      shift
      ;;

    --disable-doxygen*|--enable-doxygen*)
      argument "$1" "To build doxygen documentation use 'doc' target after generating, e.g. 'make doc'"
      shift
      ;;

    --with-freetype*|--without-freetype*)
      argument_simple "$1" "FreeType" "PLAYER_WITH_FREETYPE"
      shift
      ;;

    --with-harfbuzz*|--without-harfbuzz*)
      argument_simple "$1" "Harfbuzz" "PLAYER_WITH_HARFBUZZ"
      shift
      ;;

    --with-lhasa*|--without-lhasa*)
      argument_simple "$1" "Lhasa" "PLAYER_WITH_LHASA"
      shift
      ;;

    --with-nlohmann_json*|--without-nlohmann_json*)
      argument_simple "$1" "JSON" "PLAYER_WITH_NLOHMANN_JSON"
      shift
      ;;

    --with-audio*|--without-audio*)
      argument "$1" "To disable audio use '-DPLAYER_AUDIO_BACKEND=OFF'"
      shift
      ;;

    --with-libmpg123*|--without-libmpg123*)
      argument_simple "$1" "mpeg123" "HAVE_LIBMPG123"
      shift
      ;;

    --with-libwildmidi*|--without-libwildmidi*)
      argument_simple "$1" "WildMidi" "PLAYER_WITH_WILDMIDI"
      shift
      ;;

    --with-fluidsynth*|--without-fluidsynth*)
      argument_simple "$1" "Fluidsynth" "PLAYER_WITH_FLUIDSYNTH"
      shift
      ;;

    --with-fluidlite*|--without-fluidlite*)
      argument_simple "$1" "FluidLite" "PLAYER_WITH_FLUIDLITE"
      shift
      ;;

    --with-alsa*|--without-alsa*)
      argument_simple "$1" "Native MIDI" "PLAYER_WITH_NATIVE_MIDI"
      shift
      ;;

    --with-oggvorbis*|--without-oggvorbis*)
      argument_simple "$1" "Ogg Vorbis" "PLAYER_WITH_OGGVORBIS"
      shift
      ;;

    --with-opus*|--without-opus*)
      argument_simple "$1" "Opus" "PLAYER_WITH_OPUS"
      shift
      ;;

    --with-libsndfile*|--without-libsndfile*)
      argument_simple "$1" "Sndfile" "PLAYER_WITH_LIBSNDFILE"
      shift
      ;;

    --with-libxmp*|--without-libxmp*)
      argument_simple "$1" "xmp" "PLAYER_WITH_XMP"
      shift
      ;;

    --with-libspeexdsp*|--without-libspeexdsp*)
      argument_simple "$1" "speexDSP" "PLAYER_WITH_SPEEXDSP"
      shift
      ;;

    # ignore remaining, notify later
    *)
      arguments="$arguments $1"
      shift
      ;;
  esac
done

echo

# show generic messages
if [ $show_dirinfo -eq 1 ]; then
  message "You provided one or more directory options (--somedir=somewhere),\n \
   Changing installation directories is supported, see the following link for reference:\n \
   https://cmake.org/cmake/help/latest/module/GNUInstallDirs.html\n"
fi
if [ $show_crossinfo -eq 1 ]; then
  message "For crosscompiling you need a toolchain file, see the following link for reference:\n \
   https://cmake.org/cmake/help/latest/manual/cmake-toolchains.7.html#cross-compiling\n"
fi
if [ $show_libflaginfo -eq 1 ]; then
  message "For custom library flags, it might be needed to have a look at the 'Find*.cmake'\n \
   Modules in 'builds/cmake/Modules' directory\n"
fi

# show other options
if [ -n "$arguments" ]; then
  error "The following options are unrecognized:"
  for arg in $arguments; do
    echo "         $arg"
  done
  echo
fi

echo "If you need further help, use our bug tracker or contact us:"
echo "https://github.com/EasyRPG/Player/issues - https://easyrpg.org/contact/"

# exit with error code to make external tools aware of "unsuccessful" build
exit 1