# Maintainer: jc_gargma <jc_gargma@iserlohn-fortress.net>
# Maintainer (AUR): George Rawlinson <george@rawlinson.net.nz>
# Contributor (AUR): Max Zhao <alcasa dot mz at gmail dot com>
# Contributor (AUR): Leonard König <leonard.r.koenig at googlemail dot com>


# # I maintain this because:
# Arch version lacks additional optimization and hardening flags
# Arch version uses git
# Arch version forces compilation with all threads
# Arch version forces msse3, and single thread flto
# Arch version compiles a second time during package() with incorrect FLAGS

pkgname=endless-sky
pkgver=0.10.4
pkgrel=1
pkgdesc='A sandbox-style space exploration and combat game'
arch=('x86_64' 'i686' 'aarch64')
url='https://endless-sky.github.io/'
license=(
  'GPL3'
  'custom:CC-BY-3.0'
  'custom:CC-BY-4.0'
  'custom:CC-BY-NC-3.0'
  'custom:CC-BY-SA-3.0'
  'custom:CC-BY-SA-4.0'
  'custom:public-domain'
)
options=('lto')
depends=(
  'glibc'
  'gcc-libs'
  'openal'
  'libpng'
  'glew'
  'hicolor-icon-theme'
  'libjpeg-turbo'
  'sdl2'
  'libmad'
  'util-linux-libs'
  'libglvnd'
)
makedepends=('scons')
optdepends=(
  'endless-sky-high-dpi: high resolution graphics assets'
)
source=("$pkgname-$pkgver.tar.gz::https://github.com/endless-sky/endless-sky/archive/v${pkgver}.tar.gz")
b2sums=('2a0a82c87d86150ddf5b371371de1a3fc642893af0e2506f83417abd9f846fbe2b9d0418c911fbaa94367cf5303ca52150cec1e5ac5d02bbca991b8a766fb647')

prepare() {
  cd "$pkgname-$pkgver"

  # binary is installed to /usr/games instead of /usr/bin
  sed -i 's:games", sky:bin", sky:' SConstruct

  # Stop forcing msse3, O3, and single thread flto
  sed \
  -e 's|<Add option="-msse3" />||' \
  -e 's|<Add option="-O3" />||' \
  -e 's|<Add option="-flto" />||' \
  -i EndlessSky.cbp

  sed \
  -e 's|<Add option="-msse3" />||' \
  -e 's|<Add option="-O3" />||' \
  -e 's|<Add option="-flto" />||' \
  -i EndlessSkyLib.cbp

  sed \
  -e 's|<Add option="-msse3" />||' \
  -e 's|<Add option="-O3" />||' \
  -e 's|<Add option="-flto" />||' \
  -i EndlessSkyTests.cbp

  sed \
  -e 's|, "-O3", "-flto"||' \
  -e 's|env.Append(LINKFLAGS = ["-O3", "-flto"])||' \
  -i SConstruct
}

build() {
  cd "$pkgname-$pkgver"

  export CFLAGS="$CFLAGS -O3 -fPIE"
  export CXXFLAGS="$CXXFLAGS -O3 -fPIE"
  export LDFLAGS="$LDFLAGS,-pie"

  # Fix scons to honor thread count in MAKEFLAGS
  scons "${MAKEFLAGS}"
}

package() {
  cd "$pkgname-$pkgver"

  # For reasons of black magic, adding these flags again prevents a second compilation during this step.
  # This halves compilation time.
  # Also prevents this second compilation from being used in the resulting package with incorrect FLAGS.
  # Madness.
  export CFLAGS="$CFLAGS -O3 -fPIE"
  export CXXFLAGS="$CXXFLAGS -O3 -fPIE"
  export LDFLAGS="$LDFLAGS,-pie"

  scons \
    DESTDIR="$pkgdir" \
    PREFIX=/usr \
    install

  # license
  install -Dm644 -t "$pkgdir/usr/share/licenses/$pkgname" copyright
}