configure

#!/bin/sh

VERSION="0.30.0"
PREFIX="/usr/local"
SYSTEM_INCLUDE_PATH="/usr/include"
SYSTEM_LIBRARY_PATH="/usr/lib:/lib"
PC_PATH="/usr/local/lib/pkgconfig:/usr/local/share/pkgconfig:/usr/lib/pkgconfig:/usr/share/pkgconfig"
ENABLE_INDIRECT_DEPS=0
ENABLE_DEFINE_PREFIX=0

verbose=0
debug=0

red=31
green=32
yellow=33
blue=34
magenda=35
cyan=36
white=37

printc () {
  printf "\033[%d;1m%b\033[0m" $1 "$2"
}

ok () {
  printc $green "\tOK\n"
}

fail () {
  printc $red "\tFAIL\n"
}

warn () {
  printc $yellow "warning: "
  printf "%b\n" "$1"
}

status () {
  printf $2
  if [ $1 = 0 ]; then
    ok
  else
    fail
    exit 1
  fi
}

bin () {
  type $1 >/dev/null 2>&1
  # $? == 0?
  status $? $1
}

lib () {
  pkg-config $1 >/dev/null 2>&1
  # $? == 0?
  status $? $1
}

bins () {
  printc $white "checking building tools..\n"
  bin pkg-config
  bin rm
  bin mkdir
  bin cp
  bin chmod
  bin strip
  bin gzip
}

libs () {
  printc $white "checking libraries..\n"
  LIB_NAMES="glib-2.0"
  for i in $LIB_NAMES; do
    lib $i
  done
}

append () {
  printf "%b\n" "$*" >> config.mk
}

config () {
  printc $white "creating configuration file"
  append "# Generated by configure script"
  append "BIN_DIR = $PREFIX/bin"
  append "LIB_DIR = $PREFIX/lib"
  append "SHARE_DIR = $PREFIX/share"
  append "MAN_DIR = $PREFIX/share/man/man1\n"
  if [ $verbose = 1 ]; then
    append "QUIET_CC = "
    append "QUIET_LINK = "
  else
    append "QUIET_CC = @echo 'CC '\$@;"
    append "QUIET_LINK = @echo 'LINK '\$@;"
  fi
  append "\nCFLAGS = -DPKG_CONFIG_SYSTEM_INCLUDE_PATH=\\\"$SYSTEM_INCLUDE_PATH\\\" -DPKG_CONFIG_SYSTEM_LIBRARY_PATH=\\\"$SYSTEM_LIBRARY_PATH\\\" -DPKG_CONFIG_PACKAGE_PATH=\\\"$PREFIX/share/pkg-config\\\" -DPKG_CONFIG_PC_PATH=\\\"$PC_PATH\\\" -DENABLE_INDIRECT_DEPS=$ENABLE_INDIRECT_DEPS -DENABLE_DEFINE_PREFIX=$ENABLE_DEFINE_PREFIX -DVERSION=\\\"$VERSION\\\" `pkg-config --cflags $LIB_NAMES`"
  append "CFLAGS += -DHAVE_PARSE_SPEW"
  [ $debug = 1 ] && append "CFLAGS += -g -DDEBUG" || append "CFLAGS += -O3"
  append "\nLIBS = `pkg-config --libs $LIB_NAMES`"
  ok
}

printf "configure: create 'config.mk' include file\n"
for arg; do
  opt=${arg%%=*}
  var=${arg#*=}
  case "$opt" in
    --verbose)
      verbose=1
    ;;
    --debug)
      debug=1
    ;;
    --prefix)
      PREFIX="$var"
    ;;
    --system-include-path)
      SYSTEM_INCLUDE_PATH="$var"
    ;;
    --system-library-path)
      SYSTEM_LIBRARY_PATH="$var"
    ;;
    --pc-path)
      PC_PATH="$var"
    ;;
    --enable-indirect-deps)
      ENABLE_INDIRECT_DEPS=1
    ;;
    --enable-define-prefix)
      ENABLE_DEFINE_PREFIX=1
    ;;
    -h|--help)
      printf "usage: ./"
      printc $white "configure "
      printf "[--verbose] [--debug] [--prefix=<dir>] [--system-include-path=<dir>] [--system-library-path=<dir>] [--pc-path=<dir>] [--enable-indirect-deps] [--enable-define-prefix]\n"
      exit 1
    ;;
    *)
      warn "unknown option $opt" >&2
    ;;
  esac
done

bins
libs
config

printf "type "
printc $white "make"
printf " to build the program\n"