# Template file for 'go'
pkgname=go
version=1.3.1
revision=2
wrksrc=go
hostmakedepends="mercurial ca-certificates"
depends="perl"
short_desc="The Go Programming Language"
maintainer="Dominik Honnef <dominik@honnef.co>"
homepage="http://golang.org/"
license="BSD"
distfiles="http://golang.org/dl/go${version}.src.tar.gz"
checksum=fdfa148cc12f1e4ea45a5565261bf43d8a2e7d1fad4a16aed592d606223b93a8

nostrip=yes
noverifyrdeps=yes

_go_targetarch() {
	case "$XBPS_MACHINE" in
		arm*) export hostarch=arm;;
		i686*) export hostarch=386;;
		x86_64*) export hostarch=amd64;;
	esac
	case "$XBPS_TARGET_MACHINE" in
		arm*) targetarch=arm;;
		i686*) targetarch=386;;
		x86_64*) targetarch=amd64;;
		*) targetarch=$hostarch;;
	esac
	echo $targetarch
}

do_build() {
	unset GCC CC CXX LD CFLAGS

	targetarch=$(_go_targetarch)
	export GOROOT=$PWD
	export GOROOT_FINAL="/usr/lib/go"
	export GOOS=
	export GOARCH=
	export GOPATH=/tmp
	mkdir -p $GOPATH/src

	cd src

	GOOS=linux
	GOARCH=arm
	bash make.bash --no-clean
	for os in darwin freebsd linux windows; do
		for arch in 386 amd64; do
			GOARCH=$arch
			GOOS=$os
			bash make.bash --no-clean
		done
	done

	GOOS=linux
	GOARCH=$targetarch

	hg clone -u release-branch.go$(echo "$version" | cut -d "." -f "1-2") \
		--config web.cacerts=/etc/ssl/certs/ca-certificates.crt \
		https://code.google.com/p/go.tools/ \
		$GOPATH/src/code.google.com/p/go.tools

	for tool in godoc vet cover; do
		$GOROOT/bin/go install code.google.com/p/go.tools/cmd/${tool}
	done
}

do_install() {
	vinstall LICENSE 644 usr/share/licenses/go

	# TODO Beginning with Go 1.4, there will be no editor or shell
	# integration in the Go distribution anymore (see
	# https://codereview.appspot.com/105470043) - While the emacs
	# integration has a canonical upstream at
	# https://github.com/dominikh/go-mode.el, neither vim, bash nor
	# zsh have one (yet). In any case, there'll need to be made a
	# decision between pulling 3rd party integration into this
	# package, providing extra packages, or doing nothing at all.
	vinstall misc/bash/go 644 usr/share/bash-completion/completions
	vinstall misc/emacs/go-mode-load.el 644 usr/share/emacs/site-lisp
	vinstall misc/emacs/go-mode.el 644 usr/share/emacs/site-lisp
	vinstall misc/zsh/go 644 usr/share/zsh/site-functions _go

	for f in ftdetect/gofiletype.vim autoload/go/complete.vim indent/go.vim \
		ftplugin/go/fmt.vim ftplugin/go/import.vim \
		syntax/go.vim syntax/godoc.vim plugin/godoc.vim; do
		vinstall misc/vim/$f 644 usr/share/vim/vimfiles
	done

	install -d ${DESTDIR}/{etc/profile.d,usr/{share/go,lib/go,lib/go/src,lib/go/site/src}}

	cp -r doc misc -t ${DESTDIR}/usr/share/go
	ln -s /usr/share/go/doc ${DESTDIR}/usr/lib/go/doc

	if [ "$CROSS_BUILD" ]; then
		case "$XBPS_TARGET_MACHINE" in
			arm*) bindir=bin/linux_arm;;
			i686*) bindir=bin/linux_386;;
			x86_64*) bindir=bin/linux_amd64;;
		esac
	else
		bindir=bin
	fi

	vmkdir usr/bin
	cp -d --preserve=all ${bindir}/* ${DESTDIR}/usr/bin || true
	cp -a pkg ${DESTDIR}/usr/lib/go
	cp -a src/pkg ${DESTDIR}/usr/lib/go/src/
	cp -a src/cmd ${DESTDIR}/usr/lib/go/src/cmd
	cp -a src/lib9 ${DESTDIR}/usr/lib/go/src/
	cp -a lib ${DESTDIR}/usr/lib/go/
	cp -a include ${DESTDIR}/usr/lib/go/

	install -Dm644 src/Make.* ${DESTDIR}/usr/lib/go/src

	# Remove object files from target src dir
	find ${DESTDIR}/usr/lib/go/src/ -type f -name '*.[ao]' -delete
	find ${DESTDIR}/usr/lib/go/src/pkg -type f -executable -delete

	# Headers for C modules
	vinstall src/pkg/runtime/runtime.h 644 usr/lib/go/src/pkg/runtime
	vinstall src/pkg/runtime/cgocall.h 644 usr/lib/go/src/pkg/runtime

	# For packages that source /etc/profile.d/go.sh
	vinstall ${FILESDIR}/go.sh 755 etc/profile.d

	# This is to make go get code.google.com/p/go-tour/gotour and
	# then running the gotour executable work out of the box.
	#
	# Also, /usr/bin is the place for system-wide executables,
	# not /usr/lib/go/bin. Users should use different paths by
	# setting the appropriate environment variables.
	#
	ln -sf /usr/bin ${DESTDIR}/usr/lib/go/bin

	# For godoc
	vinstall favicon.ico 644 usr/lib/go

	rm -f ${DESTDIR}/usr/share/go/doc/articles/wiki/get.bin
}

go-cross-linux_package() {
	nostrip=yes
	noverifyrdeps=yes
	depends="${sourcepkg}-${version}_${revision}"
	short_desc+=" - Cross compilers for Linux"
	pkg_install() {
		targetarch=$(_go_targetarch)
		mkdir -p $PKGDESTDIR/usr/lib/go/pkg/tool/
		cd ${DESTDIR}/usr/lib/go/pkg/tool/
		for i in linux_*; do
			if [ "$i" != "linux_${targetarch}" ]; then
				mv "$i" $PKGDESTDIR/usr/lib/go/pkg/tool/
			fi
		done

		mkdir -p $PKGDESTDIR/usr/lib/go/pkg/
		cd ${DESTDIR}/usr/lib/go/pkg/
		for i in linux_*; do
			if [ "$i" != "linux_${targetarch}" ]; then
				mv "$i" $PKGDESTDIR/usr/lib/go/pkg/
			fi
		done

		mkdir -p $PKGDESTDIR/usr/lib/go/src/pkg/runtime/
		cd ${DESTDIR}/usr/lib/go/src/pkg/runtime/
		for i in zasm_linux_*.h; do
			if [ "$i" != "zasm_linux_${targetarch}.h" ]; then
				mv "$i" $PKGDESTDIR/usr/lib/go/src/pkg/runtime/
			fi
		done
	}
}

go-cross-darwin_package() {
	nostrip=yes
	noverifyrdeps=yes
	depends="${sourcepkg}-${version}_${revision}"
	short_desc+=" - Cross compilers for Darwin"
	pkg_install() {
		vmove "usr/lib/go/pkg/tool/darwin_*"
		vmove "usr/lib/go/pkg/darwin_*"
		vmove "usr/lib/go/src/pkg/runtime/zasm_darwin_*.h"
	}
}

go-cross-freebsd_package() {
	nostrip=yes
	noverifyrdeps=yes
	depends="${sourcepkg}-${version}_${revision}"
	short_desc+=" - Cross compilers for FreeBSD"
	pkg_install() {
		vmove "usr/lib/go/pkg/tool/freebsd_*"
		vmove "usr/lib/go/pkg/freebsd_*"
		vmove "usr/lib/go/src/pkg/runtime/zasm_freebsd_*.h"
	}
}


go-cross-windows_package() {
	nostrip=yes
	noverifyrdeps=yes
	depends="${sourcepkg}-${version}_${revision}"
	short_desc+=" - Cross compilers for Windows"
	pkg_install() {
		vmove "usr/lib/go/pkg/tool/windows_*"
		vmove "usr/lib/go/pkg/windows_*"
		vmove "usr/lib/go/src/pkg/runtime/zasm_windows_*.h"
	}
}
