dev-lang/go: add 1.20

Signed-off-by: William Hubbs <williamh@gentoo.org>

2 files changed, 202 insertions, 0 deletions

diff --git a/dev-lang/go/Manifest b/dev-lang/go/Manifest
index 434b06e39a2e..293f0fb59867 100644
--- a/dev-lang/go/Manifest
+++ b/dev-lang/go/Manifest
@@ -2,3 +2,4 @@ DIST go1.18.10.src.tar.gz 22880022 BLAKE2B e458ecd02a4d77b77f2b6b65ecac45195c0f5
 DIST go1.18.9.src.tar.gz 22878625 BLAKE2B 47a379642080506ecdc9094cff78ac6ac1c1cc501959b11ad0f5066b5a0e6d3dd050afa5df118fa614ef02f828b8ee9ebb3e976a338f696f2d0cb2d0e6174d94 SHA512 5f47442cc8ffbbc8c709ed5e8a6f3c5e19fc7979a21dc9883bb27096ffd165a08106ed01e2239c95c9276517081f967be9581f7c45272f9b2dcfced096eb8a67
 DIST go1.19.4.src.tar.gz 26542047 BLAKE2B 8373cbbad542cb5ccb54677e2a7d01ba62a2a15630a6aa49e4494debb308a8959191f67691e452cf447187e40b8edb1b75bf9b9e5eac299e64e97f4561a81433 SHA512 00866e171d73170583e292439beecdaaee1b8fa907b6ab03013390b0cd7eaebfbe8cb9f9222f1af86933b50602e584677bc3aa25993c02d07a11625a62db263b
 DIST go1.19.5.src.tar.gz 26545858 BLAKE2B da4d77fdcde28bc6e27ddbe013bed4c02cbb17db878ff0d935051daaf7277e2cdfe30d0e6917d4ec2df62ded08117815f2eb12830cef48056f56188ac5eb92fb SHA512 26754f2a4870d0a5484162b626dad5109a33c116675898c84de46155659dadeff2b3fa9ea3dd0c7da8d23c8ff0974cfe42bdd07484e6f784617de3a577b3c883
+DIST go1.20.src.tar.gz 26163076 BLAKE2B 54a573e53a2bdc0f62e29b4604e8fffbf6228839fffd58968cc0f9fbc343d2a0825361ae4a0c11f146b2e8fbe81439bf194cececa3d2fbf495d97997eab2e8ce SHA512 6b59af1094fafbf2dba6b26a5da0c6363d87b0997dd399cde40d9150e00bedd15100c0c8c12e31cfe7e153d2ea45b403764b2d83479d1cda74077179c8cca4d3
diff --git a/dev-lang/go/go-1.20.ebuild b/dev-lang/go/go-1.20.ebuild
new file mode 100644
index 000000000000..2cd60e3b05d0
--- /dev/null
+++ b/dev-lang/go/go-1.20.ebuild
@@ -0,0 +1,201 @@
+# Copyright 1999-2023 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+export CBUILD=${CBUILD:-${CHOST}}
+export CTARGET=${CTARGET:-${CHOST}}
+
+MY_PV=${PV/_/}
+
+inherit toolchain-funcs
+
+case ${PV}  in
+*9999*)
+	EGIT_REPO_URI="https://github.com/golang/go.git"
+	inherit git-r3
+	;;
+*)
+	SRC_URI="https://storage.googleapis.com/golang/go${MY_PV}.src.tar.gz "
+	S="${WORKDIR}"/go
+	case ${PV} in
+	*_beta*|*_rc*) ;;
+	*)
+		KEYWORDS="-* ~amd64 ~arm ~arm64 ~loong ~mips ~ppc64 ~riscv ~s390 ~x86 ~amd64-linux ~x86-linux ~x64-macos ~x64-solaris"
+		;;
+	esac
+esac
+
+DESCRIPTION="A concurrent garbage collected and typesafe programming language"
+HOMEPAGE="https://go.dev"
+
+LICENSE="BSD"
+SLOT="0/${PV}"
+IUSE="abi_mips_o32 abi_mips_n64 cpu_flags_x86_sse2"
+
+BDEPEND="|| (
+		dev-lang/go
+		dev-lang/go-bootstrap )"
+
+# 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 should not cause the multilib-strict check to fail.
+QA_MULTILIB_PATHS="usr/lib/go/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 $@)
+	case "${tc_arch}" in
+		x86)	echo 386;;
+		x64-*)	echo amd64;;
+		loong)	echo loong64;;
+		mips) if use abi_mips_o32; then
+				[[ $(tc-endian $@) = big ]] && echo mips || echo mipsle
+			elif use abi_mips_n64; then
+				[[ $(tc-endian $@) = big ]] && echo mips64 || echo mips64le
+			fi ;;
+		ppc64) [[ $(tc-endian $@) = big ]] && echo ppc64 || echo ppc64le ;;
+		riscv) echo riscv64 ;;
+		s390) echo s390x ;;
+		*)		echo "${tc_arch}";;
+	esac
+}
+
+go_arm() {
+	case "${1:-${CHOST}}" in
+		armv5*)	echo 5;;
+		armv6*)	echo 6;;
+		armv7*)	echo 7;;
+		*)
+			die "unknown GOARM for ${1:-${CHOST}}"
+			;;
+	esac
+}
+
+go_os() {
+	case "${1:-${CHOST}}" 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 ${1:-${CHOST}}"
+			;;
+	esac
+}
+
+go_tuple() {
+	echo "$(go_os $@)_$(go_arch $@)"
+}
+
+go_cross_compile() {
+	[[ $(go_tuple ${CBUILD}) != $(go_tuple) ]]
+}
+
+src_compile() {
+	if has_version -b dev-lang/go; then
+		export GOROOT_BOOTSTRAP="${BROOT}/usr/lib/go"
+	elif has_version -b dev-lang/go-bootstrap; then
+		export GOROOT_BOOTSTRAP="${BROOT}/usr/lib/go-bootstrap"
+	else
+		eerror "Go cannot be built without go or go-bootstrap installed"
+		die "Should not be here, please report a bug"
+	fi
+
+	export GOROOT_FINAL="${EPREFIX}"/usr/lib/go
+	export GOROOT="${PWD}"
+	export GOBIN="${GOROOT}/bin"
+
+	# Go's build script does not use BUILD/HOST/TARGET consistently. :(
+	export GOHOSTARCH=$(go_arch ${CBUILD})
+	export GOHOSTOS=$(go_os ${CBUILD})
+	export CC=$(tc-getBUILD_CC)
+
+	export GOARCH=$(go_arch)
+	export GOOS=$(go_os)
+	export CC_FOR_TARGET=$(tc-getCC)
+	export CXX_FOR_TARGET=$(tc-getCXX)
+	use arm && export GOARM=$(go_arm)
+	use x86 && export GO386=$(usex cpu_flags_x86_sse2 '' 'softfloat')
+
+	cd src
+	bash -x ./make.bash || die "build failed"
+}
+
+src_test() {
+	go_cross_compile && return 0
+
+	cd src
+	PATH="${GOBIN}:${PATH}" \
+	./run.bash -no-rebuild || die "tests failed"
+	cd ..
+	rm -fr pkg/*_race || die
+	rm -fr pkg/obj/go-build || die
+}
+
+src_install() {
+	# There is a known issue which requires the source tree to be installed [1].
+	# Once this is fixed, we can consider using the doc use flag to control
+	# installing the doc and src directories.
+	# The use of cp is deliberate in order to retain permissions
+	# [1] https://golang.org/issue/2775
+	dodir /usr/lib/go
+	cp -R api bin doc lib pkg misc src test "${ED}"/usr/lib/go
+	einstalldocs
+
+	# testdata directories are not needed on the installed system
+	rm -fr $(find "${ED}"/usr/lib/go -iname testdata -type d -print)
+
+	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 ../lib/go/${bin_path}/${f} /usr/bin/${f}
+	done
+
+	# install the @golang-rebuild set for Portage
+	insinto /usr/share/portage/config/sets
+	newins "${FILESDIR}"/go-sets.conf go.conf
+}
+
+pkg_postinst() {
+	[[ -z ${REPLACING_VERSIONS} ]] && return
+	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"
+}