# Maintainer: Bartłomiej Piotrowski <bpiotrowski@archlinux.org>
# Maintainer: Morten Linderud <foxboron@archlinux.org>

# ALARM: Kevin Mihelich <kevin@archlinuxarm.org>
#  - added switches for our architectures
#  - don't build stdlib with race detector (x86 only)

pkgbase=go
pkgname=(go go-pie)
epoch=2
pkgver=1.11
pkgrel=1
arch=(x86_64)
url='http://golang.org/'
license=(BSD)
makedepends=(git go)
source=(https://storage.googleapis.com/golang/go$pkgver.src.tar.gz
        default-buildmode-pie.patch)
sha256sums=('afc1e12f5fe49a471e3aae7d906c73e9d5b1fdd36d52d72652dde8f6250152fb'
            '9d2f0d201d4e002d74f548cc82bd131139bab5dd62191004c71dd430fdc1666d')

export GOOS=linux
case "$CARCH" in
  x86_64) export GOARCH=amd64 ;;
  arm) export GOARCH=arm GOARM=5 ;;
  armv6h) export GOARCH=arm GOARM=6 ;;
  armv7h) export GOARCH=arm GOARM=7 ;;
  aarch64) export GOARCH=arm64 ;;
esac
export GOROOT_FINAL=/usr/lib/go
export GOROOT_BOOTSTRAP=/usr/lib/go
export GOCACHE=off

prepare() {
  cp -r $pkgbase ${pkgbase}-pie

  cd ${pkgbase}-pie
  patch -p1 -i "$srcdir"/default-buildmode-pie.patch
}

build() {
  export GOPATH="$srcdir/"

  for _pkgname in ${pkgname[@]}; do
    export GOROOT="$srcdir/$_pkgname"
    export GOBIN="$GOROOT/bin"

    cd "$srcdir/$_pkgname/src"
    ./make.bash --no-clean -v

    PATH="$GOBIN:$PATH" go install -v -buildmode=shared std
    #PATH="$GOBIN:$PATH" go install -v -race std
  done
}

check() {
  # Run test suite only for unpatched Go as it expects non-PIE ldBuildmode
  export GOROOT="$srcdir/$pkgbase"
  export GOBIN="$GOROOT/bin"
  export PATH="$srcdir/$pkgbase/bin:$PATH"
  export GO_TEST_TIMEOUT_SCALE=2

  cd $pkgbase/src
  ./run.bash --no-rebuild -v -v -v -k 
}

_package() {
  options=(!strip staticlibs)
  cd "$srcdir/$1"

  install -d "$pkgdir/usr/bin" "$pkgdir/usr/lib/go" "$pkgdir/usr/share/doc/go"
  cp -a bin pkg src lib misc api "$pkgdir/usr/lib/go"
  cp -r doc/* "$pkgdir/usr/share/doc/go"

  ln -sf /usr/lib/go/bin/go "$pkgdir/usr/bin/go"
  ln -sf /usr/lib/go/bin/gofmt "$pkgdir/usr/bin/gofmt"
  ln -sf /usr/share/doc/go "$pkgdir/usr/lib/go/doc"

  install -Dm644 LICENSE "$pkgdir/usr/share/licenses/go/LICENSE"
  install -Dm644 VERSION "$pkgdir/usr/lib/go/VERSION"

  rm -rf "$pkgdir/usr/lib/go/pkg/bootstrap"
  rm -rf "$pkgdir/usr/lib/go/pkg/tool/*/api"

  # TODO: Figure out if really needed
  rm -rf "$pkgdir"/usr/lib/go/pkg/obj/go-build/*
}

package_go() {
  pkgdesc='Core compiler tools for the Go programming language'
  provides=(go-pie)
  conflicts=(go-pie)

  _package $pkgname
}

package_go-pie() {
  pkgdesc='Core compiler tools for the Go programming language (with PIE enabled by default)'
  provides=(go)
  conflicts=(go)

  _package $pkgname
}