# Contributor: Sören Tempel <soeren+alpine@soeren-tempel.net>
# Maintainer: Eivind Uggedal <eivind@uggedal.com>
pkgname=go
pkgver=1.4.2
# This should be the latest commit on the corresponding release branch
_toolsver="abf43428cc239218424c7a44dc9b5987cd351c3e"
pkgrel=3
pkgdesc="Go programming language compiler"
url="http://www.golang.org/"
arch="x86 x86_64 armhf"
license="BSD"
depends=""
depends_dev=""
makedepends="bash perl"
options="!strip"
install=""
subpackages="$pkgname-doc $pkgname-tools $pkgname-cross"
source="
	http://golang.org/dl/go${pkgver}.src.tar.gz
	tools.tar.gz::https://github.com/golang/tools/archive/${_toolsver}.tar.gz

	no-werror.patch
	no-pic.patch
	no-longjmp-redefine.patch
	fix-arm-hackery.patch
	default-sc-getpw-r-size-max.patch
	"

_gotools="cover vet godoc"
_gocross="darwin freebsd openbsd windows"

_builddir="$srcdir"/$pkgname
_tooldir="$srcdir"/tools-${_toolsver}

prepare() {
	cd "$_builddir"
	for i in $source; do
		case $i in
		*.patch) patch -p1 -i "$srcdir"/$i || return 1 ;;
		esac
	done
}

build() {
	cd "$_builddir/src"
	unset CC # ccache breaks build for some reason

	export GOPATH="$srcdir"
	export GOROOT="$_builddir"
	export GOBIN="$GOROOT"/bin
	export GOROOT_FINAL=/usr/lib/go

	case "$CARCH" in
	x86)	export GOARCH="386" ;;
	x86_64)	export GOARCH="amd64" ;;
	arm*)	export GOARCH="arm" ;;
	*)	return 1 ;;
	esac

	./make.bash --no-clean || return 1
	for os in $_gocross; do
		for arch in "386" "amd64"; do
			GOARCH=$arch GOOS=$os ./make.bash --no-clean || return 1
		done
	done

	# FIXME: race and bench tests fail:
	#PATH="$GOROOT/bin:$PATH" ./run.bash --no-rebuild --banner || return 1

	mkdir -p "$GOPATH"/src/golang.org/x/tools
	cp -r "$_tooldir"/* "$GOPATH"/src/golang.org/x/tools

	for tool in $_gotools; do
		"$GOROOT"/bin/go install \
			golang.org/x/tools/cmd/$tool || return 1
	done
}

package() {
	cd "$_builddir"
	mkdir -p "$pkgdir"/usr/bin "$pkgdir"/usr/lib/go "$pkgdir"/usr/share/doc/go

	install -Dm755 bin/go "$pkgdir"/usr/bin || return 1
	install -Dm755 bin/gofmt "$pkgdir"/usr/bin || return 1

	# The source needs to be installed due to an upstream
	# bug (https://github.com/golang/go/issues/2775).
	# When this is resolved we can split out the source to a
	# go-doc sub package.
	cp -a pkg src "$pkgdir"/usr/lib/go || return 1
	cp -r doc misc "$pkgdir"/usr/share/doc/go || return 1

	# Remove tests from /usr/lib/go/src.
	# Those shouldn't be affacted by the upstream bug (see above).
	find "$pkgdir"/usr/lib/go \( -type f -a -iname '*_test*' \) \
		-o \( -type d -name 'testdata' \) -exec rm -rf \{\} \+
}

tools() {
	pkgdesc="Go programming language tools"
	depends="$pkgname"

	install -dm755 "$subpkgdir"/usr/lib/go/pkg/tool/linux_$GOARCH
	install -Dm755 "$_builddir"/bin/godoc \
		"$pkgdir"/usr/lib/go/pkg/tool/linux_$GOARCH/$tool

	for tool in $_gotools; do
		mv "$pkgdir"/usr/lib/go/pkg/tool/linux_$GOARCH/$tool \
			"$subpkgdir"/usr/lib/go/pkg/tool/linux_$GOARCH/$tool || return 1
	done
}

cross() {
	pkgdesk="Go cross compilers"
	depends="$pkgname"

	mkdir -p "$subpkgdir"/usr/lib/go/pkg/tool \
		"$subpkgdir"/usr/lib/go/src/runtime

	for os in $_gocross; do
		mv "$pkgdir"/usr/lib/go/pkg/tool/${os}_* \
			"$subpkgdir"/usr/lib/go/pkg/tool || return 1
		mv "$pkgdir"/usr/lib/go/pkg/${os}_* \
			"$subpkgdir"/usr/lib/go/pkg || return 1
		mv "$pkgdir"/usr/lib/go/src/runtime/zasm_${os}*.h \
			"$subpkgdir"/usr/lib/go/src/runtime || return 1
	done
}

md5sums="907f85c8fa765d31f7f955836fec4049  go1.4.2.src.tar.gz
a8bc7ad3d0deff01bd45e4938cc3adb6  tools.tar.gz
65330c61f6d6c881033b0a95ca228edb  no-werror.patch
4391be88ce8bacdd7fee433b39635583  no-pic.patch
93ad940db4a6d51e086f80755eaa8f53  no-longjmp-redefine.patch
81ac9f3188df7a0c16c52cc4d8cc1ffa  fix-arm-hackery.patch
fd4d1a7ccb5d37da4ff9c3a2d97aa976  default-sc-getpw-r-size-max.patch"
sha256sums="299a6fd8f8adfdce15bc06bde926e7b252ae8e24dd5b16b7d8791ed79e7b5e9b  go1.4.2.src.tar.gz
e754f0e28092f19d70e2c229023ef9b2d935e81ba886ece40e02803a83825f3d  tools.tar.gz
65d38b9485da2ff9417a2c44a81b6e52cc9bd2727b27e7add10d48a63805d4a3  no-werror.patch
86fc68a50bc4a9336a003239adf1dcc6d7cabfb9c1bcf09b0d53d09100ceff12  no-pic.patch
084020e0eb6cb0aceee047bd5962872ed51dbb45465174018d108eb195c26605  no-longjmp-redefine.patch
fced8436d9c32a43a5cc87f2243529e7a8209ba73a9afd4fd7733245bc55e4e3  fix-arm-hackery.patch
3757d5f7c4e6d3b2fed4b01c7da6e3e8c0b7789333219ab10ec0b151fb163980  default-sc-getpw-r-size-max.patch"
sha512sums="cda1a29d4418875dffaf3324004ddae8e1bbb573f7668e6e0c03d8b61284f4db7fca244c181f2859f8ccdd3db6391fb21e0d98a1a9fc15096c15883249d48a9c  go1.4.2.src.tar.gz
1b4a6fb526029fe7f07a676cf2ee0b9e228e3b3b600e8607b04f129074892a85f39685257ffe25939478044ce1096ce053a283ef2b05465b4e6d8deb10da8e03  tools.tar.gz
3cf139723e6ff0cbf7aaf76295fe4208f2062f2d4086e36d05cad83919217b5355e0e79b0b515a06a578389301bd07b062cb58b98fc0f9e4badf190cd1c34826  no-werror.patch
a8e95c3c536a30e15b9bad5e623a085c521739639a58ac638679d99413a1bee8823729783123cbe4495ac42822df31f4776f0380a63786b9f4fc73190e012ae5  no-pic.patch
3a9b665f8fda89729c4c269ea82f82ee515f0026d26f1d51e2cf84054456e394afc14875e7ed29280a12488907d50c70af313e2e4a5b62c328bbade098db9d4d  no-longjmp-redefine.patch
573146b72c980af5e41540fd7912b5579b050e41ac9d808e8d14268cf0a0fa1a70e6fade85011c0f18f1a428bc95b225d8b8345be1c50656dc69046ef1eb0b40  fix-arm-hackery.patch
5de9747fe60bbc60aa8ac9870f397fa8750723f919fea25a6afc22066be45a8ad193f7935d3deacbe85c032be89b8ace0a7e82b6c9981ddaf3b7f6e8d140c61f  default-sc-getpw-r-size-max.patch"