#!/usr/bin/env bash
name='go'
release='4'
version='1.27.3'
url='https://go.dev'
description='Go programming language compiler'
email='aliriza.keskin@pardus.org.tr'
maintainer='aliriza'
license=('GPLv3')
depends=()
makedepends=()
source=("https://go.dev/dl/go$version.linux-$DEBARCH.tar.gz")
if [[ "$DEBARCH" == "amd64" ]] ; then
    sha256sums=('65efbc80fdc1fa2cd2631cad5b481777a68e8725f34e89f50fc6ac714e379b40')
fi
group=(dev.lang)
uses=()
arch=('x86_64')

cd go/src

export PATH=$HOME/go-prebuilt/bin:$PATH
export GOROOT_BOOTSRTRAP=$HOME/go-prebuilt
export GOARCH=$DEBARCH
export GOOS=linux
export GOPATH="$HOME/go"
export GOROOT="$HOME/go-prebuilt"
export GOBIN="$GOROOT"/bin
export GOROOT_FINAL=/usr/lib64/go

prepare(){
    # copy directory
    cd ../..
    cp -prvf go go-prebuilt
    # remove binary from source
    cd go/src
    rm -rfv bin pkg/tool
}

build () {
    ./make.bash -v
}

package () {
    cd ..
    mkdir -p "$DESTDIR"/usr/bin "$DESTDIR"/usr/lib64/go/bin "$DESTDIR"/usr/share/doc/go

	for binary in go gofmt; do
		install -Dm755 bin/"$binary" "$DESTDIR"/usr/lib64/go/bin/"$binary"
		ln -s ../lib64/go/bin/"$binary" "$DESTDIR"/usr/bin/
	done

	cp -a pkg lib "$DESTDIR"/usr/lib64/go
	cp -r doc misc "$DESTDIR"/usr/share/doc/go
	rm -rf "$DESTDIR"/usr/lib64/go/pkg/obj
	rm -rf "$DESTDIR"/usr/lib64/go/pkg/bootstrap
	rm -f  "$DESTDIR"/usr/lib64/go/pkg/tool/*/api

	mkdir -p "$DESTDIR"/usr/lib64/go/
	cp -a "$HOME/go"/src "$DESTDIR"/usr/lib64/go

	# Install go.env, see https://go.dev/doc/toolchain#GOTOOLCHAIN.
	install -Dm644 "$HOME/go"/go.env "$DESTDIR"/usr/lib64/go/go.env
	install -Dm644 VERSION "$DESTDIR/usr/lib64/go/VERSION"

	# Remove tests from /usr/lib64/go/src to reduce package size,
	# these should not be needed at run-time by any program.
	find "$DESTDIR"/usr/lib64/go/src \( -type f -a -name "*_test.go" \) \
		-exec rm -rf \{\} \+
	find "$DESTDIR"/usr/lib64/go/src \( -type d -a -name "testdata" \) \
		-exec rm -rf \{\} \+

	# Remove rc (plan 9) and bat scripts (windows) to reduce package
	# size further. The bash scripts are actually needed at run-time.
	#
	# See: https://gitlab.alpinelinux.org/alpine/aports/issues/11091
	find "$DESTDIR"/usr/lib64/go/src -type f -a \( -name "*.rc" -o -name "*.bat" \) \
		-exec rm -rf \{\} \+

	# cgo test files will be removed from misc/ in Go 1.21.
	# Removing them from now decreases the size of -doc below 2 MiB.
	#
	# See https://github.com/golang/go/issues/37486#issuecomment-1321364279
	rm -r "$DESTDIR"/usr/share/doc/go/misc/cgo
}