dev-lang/go: add 1.22.0

Signed-off-by: Ryan Qian <i@bitbili.net>

dev-lang/go/Manifest

@@ -1,2 +1,3 @@
 DIST go1.20.13.src.tar.gz 26287815 BLAKE2B fbcb52039785d4d030d626768dee914e4c27e0be942740230618589708721246e8708f198e04812cfc41165cec49bbb0e92d380b4bff39924fe8f99fea736a40
 DIST go1.21.6.src.tar.gz 27058459 BLAKE2B 04909d067f8dc1c1bb45d9d0a87f9d0fedb69b42a4eb89ddb24d19df7c0f77c86c6283b579f3b3f9caa3ffba6ab5f325a71552e37b38ba4082e878bd0bc942a3
+DIST go1.22.0.src.tar.gz 27544122 BLAKE2B c5b1a842b9c70ac4fd77b6403398568dc9ab228e42b2bc036a2d25462bcb2da431f7fec89e8f480b519e774fb08a8b59b6e78ed863d32b15d951ccbea19ce45f

dev-lang/go/go-1.22.0.ebuild

@@ -0,0 +1,291 @@
+# Copyright 1999-2023 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit toolchain-funcs
+
+DESCRIPTION="A concurrent garbage collected and typesafe programming language"
+HOMEPAGE="https://go.dev"
+SRC_URI="https://storage.googleapis.com/golang/go${PV//_/}.src.tar.gz "
+
+LICENSE="BSD"
+KEYWORDS="-* ~amd64 ~arm ~arm64 ~loong ~mips ~ppc64 ~riscv ~s390 ~x86 ~amd64-linux ~x86-linux ~arm64-macos ~x64-macos ~x64-solaris"
+
+IUSE="abi_mips_o32 abi_mips_n64 cpu_flags_x86_sse2"
+
+PV_MAJOR2MINOR="$(ver_cut 1-2)"
+PV_PATCH="$(ver_cut 3)"
+SLOT="${PV_MAJOR2MINOR}/${PV_PATCH:-0}"
+
+# the installation path is fixed to "${EPREFIX}${GOROOT_VALUE}"
+GOROOT_VALUE="/usr/lib/go${PV_MAJOR2MINOR}"
+S="${WORKDIR}"/go
+
+# see https://go.dev/doc/go1.22#bootstrap
+BOOTSTRAP_MIN_VER="1.20.0"
+
+BDEPEND="
+	|| (
+		>=dev-lang/go-${BOOTSTRAP_MIN_VER}
+		>=dev-lang/go-bootstrap-${BOOTSTRAP_MIN_VER}
+	)
+"
+RDEPEND="app-eselect/eselect-go"
+
+# the *.syso files have writable/executable stacks
+QA_EXECSTACK='*.syso'
+
+# Do not complain about CFLAGS, etc, since Go doesn't use them.
+QA_FLAGS_IGNORED='.*'
+
+# The tools in /usr/lib/go${PV_MAJOR2MINOR} should not cause the multilib-strict check to fail.
+QA_MULTILIB_PATHS="usr/lib/go${PV_MAJOR2MINOR}/pkg/tool/.*/.*"
+
+# This package triggers "unrecognized elf file(s)" notices on riscv.
+# https://bugs.gentoo.org/794046
+QA_PREBUILT='.*'
+
+# Do not strip this package. Stripping is unsupported upstream and may fail.
+RESTRICT="strip"
+
+DOCS=(
+	CONTRIBUTING.md
+	PATENTS
+	README.md
+	SECURITY.md
+)
+
+go_arch() {
+	# By chance most portage arch names match Go
+	local tc_arch
+	tc_arch="$(tc-arch "$1")"
+	case "${tc_arch}" in
+		arm64*) echo arm64 ;;
+		loong)  echo loong64 ;;
+		mips)
+			if use abi_mips_o32; then
+				[[ $(tc-endian "$1") == big ]] && echo mips || echo mipsle
+			elif use abi_mips_n64; then
+				[[ $(tc-endian "$1") == big ]] && echo mips64 || echo mips64le
+			fi
+			;;
+		ppc64) [[ $(tc-endian "$1") == big ]] && echo ppc64 || echo ppc64le ;;
+		riscv) echo riscv64 ;;
+		s390)  echo s390x ;;
+		x64-*) echo amd64 ;;
+		x86)   echo 386 ;;
+		*)     echo "${tc_arch}" ;;
+	esac
+}
+
+go_arm() {
+	local fp=""
+	# TODO: detect softfp/hardfp for arm
+	# refs: https://go.dev/doc/go1.22#arm
+
+	case "$CHOST" in
+		armv5*) echo 5$fp ;;
+		armv6*) echo 6$fp ;;
+		armv7*) echo 7$fp ;;
+		*)
+			die "unknown GOARM for $CHOST"
+			;;
+	esac
+}
+
+go_os() {
+	local host="${1:-$CHOST}"
+	case "$host" in
+		*-linux*)   echo linux ;;
+		*-darwin*)  echo darwin ;;
+		*-freebsd*) echo freebsd ;;
+		*-netbsd*)  echo netbsd ;;
+		*-openbsd*) echo openbsd ;;
+		*-solaris*) echo solaris ;;
+		*-cygwin*|*-interix*|*-winnt*)
+			echo windows
+			;;
+		*)
+			die "unknown GOOS for $host"
+			;;
+	esac
+}
+
+go_tuple() {
+	echo "$(go_os "$1")_$(go_arch "$1")"
+}
+
+go_cross_compile() {
+	[[ $(go_tuple "$CBUILD") != $(go_tuple) ]]
+}
+
+declare -g GO_LATEST_PVR
+pkg_setup() {
+	GO_LATEST_PVR="$(best_version -b dev-lang/go)"
+}
+
+src_compile() {
+	local go_ver=0
+	if [[ -n $GO_LATEST_PVR ]]; then
+		go_ver="${GO_LATEST_PVR#dev-lang/go-}"
+	fi
+	if ver_test "$go_ver" -ge "$BOOTSTRAP_MIN_VER"; then
+		go_ver="$(ver_cut 1-2 "$go_ver")"
+		GOROOT_BOOTSTRAP="${BROOT}/usr/lib/go${go_ver}"
+		# the make.bash will fallback to use the `go env GOROOT` to get the
+		# GOROOT_BOOTSTRAP value if this one is incorrect.
+	elif has_version -b dev-lang/go-bootstrap; then
+		GOROOT_BOOTSTRAP="${BROOT}/usr/lib/go-bootstrap"
+	else
+		eerror "Go cannot be built without go or go-bootstrap installed"
+		die "Should not be here, please report a bug"
+	fi
+
+	GOROOT_FINAL="${EPREFIX}${GOROOT_VALUE}"
+
+	# Go's build script does not use BUILD/HOST/TARGET consistently. :(
+	GOHOSTARCH=$(go_arch "$CBUILD")
+	CC="$(tc-getBUILD_CC)"
+	CXX="$(tc-getBUILD_CXX)"
+
+	GOARCH=$(go_arch)
+	GOOS=$(go_os)
+	CC_FOR_TARGET=$(tc-getCC)
+	CXX_FOR_TARGET=$(tc-getCXX)
+	use arm && GOARM=$(go_arm) && export GOARM
+	use x86 && GO386=$(usex cpu_flags_x86_sse2 '' 'softfloat') && export GO386
+
+	export \
+		GOROOT_BOOTSTRAP \
+		GOROOT_FINAL \
+		GOHOSTARCH \
+		CC \
+		CXX \
+		GOARCH \
+		GOOS \
+		CC_FOR_TARGET \
+		CXX_FOR_TARGET
+	cd src || die
+	bash -x ./make.bash || die "build failed"
+}
+
+src_test() {
+	go_cross_compile && return 0
+
+	cd src || die
+	./run.bash -no-rebuild -k || die "tests failed"
+}
+
+src_install() {
+	insinto "${GOROOT_VALUE}"
+	doins go.env VERSION
+	# The use of cp is deliberate in order to retain permissions
+	cp -R api bin doc lib pkg misc src test "${ED}${GOROOT_VALUE}"
+
+	# remove the testdata dir, due to I cannot find a way to prevent the QA
+	# warning messages about 'Unresolved soname dependencies' for those elf
+	# files that is used for testing on different platforms, ;(
+	local file
+	while read -r file; do
+		[[ -d "$file" ]] && rm -rf "$file" || die
+	done < <(find "${ED}${GOROOT_VALUE}" -name testdata -type d)
+
+	einstalldocs
+
+	# do binary link
+	local bin_path
+	if go_cross_compile; then
+		bin_path="bin/$(go_tuple)"
+	else
+		bin_path=bin
+	fi
+	local f x
+	for x in "${bin_path}"/*; do
+		f=${x##*/}
+		dosym -r "${GOROOT_VALUE}/${bin_path}/${f}" "/usr/bin/${f}${PV_MAJOR2MINOR}"
+	done
+}
+
+pkg_postinst() {
+	# check if it's a minor version upgrade
+	local pre_pvr="${GO_LATEST_PVR#dev-lang/go-}" upgrade=false \
+		pre_pv_major2minor new_pv_major2minor
+	pre_pv_major2minor=$(ver_cut 1-2 "$pre_pvr")
+	if ver_test "$PV_MAJOR2MINOR" -gt "$pre_pv_major2minor"; then
+		upgrade=true
+		new_pv_major2minor=${PV_MAJOR2MINOR}
+	else
+		new_pv_major2minor=${pre_pv_major2minor}
+	fi
+
+	# try to switch to the new version if it's a minor version upgrade or it's a
+	# fresh installation
+	local eselect_ret=0 \
+		libPath="${EROOT}"/usr/lib/go \
+		binPath="${EROOT}"/usr/bin/go
+	if [[ $upgrade == true && -L $libPath && -L $binPath ]] || \
+		[[ ! -e $libPath && ! -e $binPath ]]; then
+		eselect go set go${new_pv_major2minor} || eselect_ret=$?
+		if [[ $eselect_ret == 0 ]]; then
+			elog "[eselect] successfully switched to version: go${new_pv_major2minor}"
+			elog
+		else
+			eerror "[eselect] switch to version go${new_pv_major2minor} error, please handle it manually!"
+		fi
+	fi
+
+	# check if the ::gentoo version go pkg is installed,
+	# cannot use has_version to check the pkg with an overlay name like
+	# 'dev-lang/go::gentoo', so sad :(
+	# check the vdb directly
+	local vdb_path="${EROOT}/var/db/pkg" other_go_version_installed line
+	while read -r line; do
+		if [[ -f "${line}/repository" ]]; then
+			if [[ "$(cat "${line}/repository")" != ryans ]]; then
+				# TODO: is there any way to get the current repo_name?
+				other_go_version_installed=1
+				break
+			fi
+		fi
+	done < <(find "${vdb_path}/dev-lang/" -maxdepth 1 -name 'go-1*' -type d)
+	if [[ $other_go_version_installed == 1 ]]; then
+		ewarn "It seems that other version of golang exists, you can"
+		ewarn
+		ewarn "1. Please uninstall the other version by executing:"
+		ewarn "     # emerge -C dev-lang/go::gentoo # (or ::gentoo_prefix, or with other repo_name)"
+		ewarn "   and use the eselect to select this slot enabled version:"
+		ewarn "     # eselect go cleanup"
+		ewarn "   to make this go package works."
+		ewarn
+		ewarn "2. Or, just mask this version if you don't want it by executing:"
+		ewarn "     # echo $'\\\\n'\"dev-lang/go::ryans\" >>/etc/portage/package.mask/golang"
+		ewarn "   and uninstall it."
+		ewarn
+		ewarn "If you want to switch back to the ::gentoo version again,"
+		ewarn "please:"
+		ewarn "  # emerge -C dev-lang/go       # remove all versions"
+		ewarn "  # echo $'\\\\n'\"dev-lang/go::ryans\" >>/etc/portage/package.mask/golang"
+		ewarn "  # emerge dev-lang/go::gentoo  # install it through go-bootstrap again"
+		echo
+	fi
+	elog "To select/switch between available Go version, execute as root:"
+	elog "  # eselect go set (go1.21|go1.22|...)"
+	elog "ATTENTION: not compatible with dev-lang/go::gentoo (or ::gentoo_prefix) version"
+
+	[[ -n ${REPLACING_VERSIONS} ]] || return
+	elog
+	elog "After ${CATEGORY}/${PN} is updated, it is recommended to rebuild"
+	elog "all packages compiled with previous versions of ${CATEGORY}/${PN}"
+	elog "due to the static linking nature of go."
+	elog "If this is not done, the packages compiled with the older"
+	elog "version of the compiler will not be updated until they are"
+	elog "updated individually, which could mean they will have"
+	elog "vulnerabilities."
+	elog "Run 'emerge @golang-rebuild' to rebuild all 'go' packages."
+	elog "See https://bugs.gentoo.org/752153 for more info"
+}
+
+pkg_postrm() {
+	eselect go cleanup
+}