Update terraform provider libvirt and add required golang eclasses

Signed-off-by: Samuel Bernardo <samuelbernardo.mail@gmail.com>

4 files changed, 420 insertions, 0 deletions

diff --git a/eclass/go-env.eclass b/eclass/go-env.eclass
new file mode 100644
index 0000000..2cd5506
--- /dev/null
+++ b/eclass/go-env.eclass
@@ -0,0 +1,112 @@
+# Copyright 2023-2024 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+# @ECLASS: go-env.eclass
+# @MAINTAINER:
+# Samuel Bernardo <samuelbernardo.mail@gmail.com>
+# @AUTHOR:
+# Flatcar Linux Maintainers <infra@flatcar-linux.org>
+# @BLURB: Helper eclass for setting the Go compile environment. Required for cross-compiling.
+# @DESCRIPTION:
+# This eclass includes helper functions for setting the compile environment for Go ebuilds.
+# Intended to be called by other Go eclasses in an early build stage, e.g. src_unpack.
+
+if [[ -z ${_GO_ENV_ECLASS} ]]; then
+_GO_ENV_ECLASS=1
+
+inherit flag-o-matic toolchain-funcs
+
+# @FUNCTION: go-env_set_compile_environment
+# @DESCRIPTION:
+# Set up basic compile environment: CC, CXX, and GOARCH.
+# Necessary platform-specific settings such as GOARM or GO386 are also set
+# according to the Portage configuration when building for those architectures.
+# Also carry over CFLAGS, LDFLAGS and friends.
+# Required for cross-compiling with crossdev.
+# If not set, host defaults will be used and the resulting binaries are host arch.
+# (e.g. "emerge-aarch64-cross-linux-gnu foo" run on x86_64 will emerge "foo" for x86_64
+#  instead of aarch64)
+go-env_set_compile_environment() {
+	tc-export CC CXX PKG_CONFIG
+
+	export GOARCH="$(go-env_goarch)"
+	use arm && export GOARM=$(go-env_goarm)
+	use x86 && export GO386=$(go-env_go386)
+
+	# XXX: Hack for checking ICE (bug #912152, gcc PR113204)
+	case ${EAPI} in
+		6)
+			has_version "sys-devel/gcc[debug]" && filter-lto
+			;;
+		*)
+			has_version -b "sys-devel/gcc[debug]" && filter-lto
+			;;
+	esac
+
+	export CGO_CFLAGS="${CGO_CFLAGS:-$CFLAGS}"
+	export CGO_CPPFLAGS="${CGO_CPPFLAGS:-$CPPFLAGS}"
+	export CGO_CXXFLAGS="${CGO_CXXFLAGS:-$CXXFLAGS}"
+	export CGO_LDFLAGS="${CGO_LDFLAGS:-$LDFLAGS}"
+}
+
+# @FUNCTION: go-env_goarch
+# @USAGE: [toolchain prefix]
+# @DESCRIPTION:
+# Returns the appropriate GOARCH setting for the target architecture.
+go-env_goarch() {
+	# By chance most portage arch names match Go
+	local tc_arch=$(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
+}
+
+# @FUNCTION: go-env_go386
+# @DESCRIPTION:
+# Returns the appropriate GO386 setting for the CFLAGS in use.
+go-env_go386() {
+	# Piggy-back off any existing CPU_FLAGS_X86 usage in the ebuild if
+	# it's there.
+	if in_iuse cpu_flags_x86_sse2 && use cpu_flags_x86_sse2 ; then
+		echo 'sse2'
+		return
+	fi
+
+	if tc-cpp-is-true "defined(__SSE2__)" ${CFLAGS} ${CXXFLAGS} ; then
+		echo 'sse2'
+		return
+	fi
+
+	# Go 1.16 dropped explicit support for 386 FP and relies on software
+	# emulation instead in the absence of SSE2.
+	echo 'softfloat'
+}
+
+# @FUNCTION: go-env_goarm
+# @USAGE: [CHOST-value]
+# @DESCRIPTION:
+# Returns the appropriate GOARM setting for the CHOST given, or the default
+# CHOST.
+go-env_goarm() {
+	case "${1:-${CHOST}}" in
+		armv5*)	echo 5;;
+		armv6*)	echo 6;;
+		armv7*)	echo 7;;
+		*)
+			die "unknown GOARM for ${1:-${CHOST}}"
+			;;
+	esac
+}
+
+fi
diff --git a/eclass/golang-base.eclass b/eclass/golang-base.eclass
new file mode 100644
index 0000000..5b3b6fd
--- /dev/null
+++ b/eclass/golang-base.eclass
@@ -0,0 +1,94 @@
+# Copyright 1999-2024 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+# @ECLASS: golang-base.eclass
+# @MAINTAINER:
+# Samuel Bernardo <samuelbernardo.mail@gmail.com>
+# @AUTHORS:
+# William Hubbs <williamh@gentoo.org>
+# @SUPPORTED_EAPIS: 5 6 7
+# @BLURB: Eclass that provides base functions for Go packages.
+# @DEPRECATED: go-module.eclass
+# @DESCRIPTION:
+# This eclass provides base functions for software written in the Go
+# programming language; it also provides the build-time dependency on
+# dev-lang/go.
+
+case "${EAPI:-0}" in
+	8)
+		;;
+	*)
+		die "${ECLASS}: Unsupported EAPI (EAPI=${EAPI})"
+		;;
+esac
+
+if [[ -z ${_GOLANG_BASE} ]]; then
+
+_GOLANG_BASE=1
+
+GO_DEPEND=">=dev-lang/go-1.10"
+if [[ ${EAPI:-0} == [56] ]]; then
+	DEPEND="${GO_DEPEND}"
+else
+	BDEPEND="${GO_DEPEND}"
+fi
+
+# Do not complain about CFLAGS etc since go projects do not use them.
+QA_FLAGS_IGNORED='.*'
+
+# Upstream does not support stripping go packages
+RESTRICT="strip"
+
+# force GO111MODULE to be auto for bug https://bugs.gentoo.org/771129
+export GO111MODULE=auto
+
+# @ECLASS_VARIABLE: EGO_PN
+# @REQUIRED
+# @DESCRIPTION:
+# This is the import path for the go package to build. Please emerge
+# dev-lang/go and read "go help importpath" for syntax.
+#
+# Example:
+# @CODE
+# EGO_PN=github.com/user/package
+# @CODE
+
+# @FUNCTION: ego_pn_check
+# @DESCRIPTION:
+# Make sure EGO_PN has a value.
+ego_pn_check() {
+	[[ -z "${EGO_PN}" ]] &&
+		die "${ECLASS}.eclass: EGO_PN is not set"
+	return 0
+}
+
+# @FUNCTION: get_golibdir
+# @DESCRIPTION:
+# Return the non-prefixed library directory where Go packages
+# should be installed
+get_golibdir() {
+	echo /usr/lib/go-gentoo
+}
+
+# @FUNCTION: get_golibdir_gopath
+# @DESCRIPTION:
+# Return the library directory where Go packages should be installed
+# This is the prefixed version which should be included in GOPATH
+get_golibdir_gopath() {
+	echo "${EPREFIX}$(get_golibdir)"
+}
+
+# @FUNCTION: golang_install_pkgs
+# @DESCRIPTION:
+# Install Go packages.
+# This function assumes that $cwd is a Go workspace.
+golang_install_pkgs() {
+	debug-print-function ${FUNCNAME} "$@"
+
+	ego_pn_check
+	insinto "$(get_golibdir)"
+	insopts -m0644 -p # preserve timestamps for bug 551486
+	doins -r pkg src
+}
+
+fi
diff --git a/eclass/golang-build.eclass b/eclass/golang-build.eclass
new file mode 100644
index 0000000..75e77ce
--- /dev/null
+++ b/eclass/golang-build.eclass
@@ -0,0 +1,85 @@
+# Copyright 1999-2024 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+# @ECLASS: golang-build.eclass
+# @MAINTAINER:
+# Samuel Bernardo <samuelbernardo.mail@gmail.com>
+# @AUTHORS:
+# William Hubbs <williamh@gentoo.org>
+# @SUPPORTED_EAPIS: 6 7
+# @PROVIDES: golang-base
+# @BLURB: Eclass for compiling go packages.
+# @DEPRECATED: go-module.eclass
+# @DESCRIPTION:
+# This eclass provides default  src_compile, src_test and src_install
+# functions for software written in the Go programming language.
+
+case ${EAPI} in
+	8) ;;
+	*) die "${ECLASS}: EAPI ${EAPI:-0} not supported" ;;
+esac
+
+if [[ -z ${_GOLANG_BUILD_ECLASS} ]]; then
+_GOLANG_BUILD_ECLASS=1
+
+inherit golang-base
+
+# @ECLASS_VARIABLE: EGO_BUILD_FLAGS
+# @DEFAULT_UNSET
+# @DESCRIPTION:
+# This allows you to pass build flags to the Go compiler. These flags
+# are common to the "go build" and "go install" commands used below.
+# Please emerge dev-lang/go and run "go help build" for the
+# documentation for these flags.
+#
+# Example:
+# @CODE
+# EGO_BUILD_FLAGS="-ldflags \"-X main.version ${PV}\""
+# @CODE
+
+# @ECLASS_VARIABLE: EGO_PN
+# @REQUIRED
+# @DESCRIPTION:
+# This is the import path for the go package(s) to build. Please emerge
+# dev-lang/go and read "go help importpath" for syntax.
+#
+# Example:
+# @CODE
+# EGO_PN=github.com/user/package
+# @CODE
+
+golang-build_src_compile() {
+	debug-print-function ${FUNCNAME} "$@"
+
+	ego_pn_check
+	set -- env GOPATH="${WORKDIR}/${P}:$(get_golibdir_gopath)" \
+		GOCACHE="${T}/go-cache" \
+		go build -v -work -x ${EGO_BUILD_FLAGS} "${EGO_PN}"
+	echo "$@"
+	"$@" || die
+}
+
+golang-build_src_install() {
+	debug-print-function ${FUNCNAME} "$@"
+
+	ego_pn_check
+	set -- env GOPATH="${WORKDIR}/${P}:$(get_golibdir_gopath)" \
+		go install -v -work -x ${EGO_BUILD_FLAGS} "${EGO_PN}"
+	echo "$@"
+	"$@" || die
+	golang_install_pkgs
+}
+
+golang-build_src_test() {
+	debug-print-function ${FUNCNAME} "$@"
+
+	ego_pn_check
+	set -- env GOPATH="${WORKDIR}/${P}:$(get_golibdir_gopath)" \
+		go test -v -work -x "${EGO_PN}"
+	echo "$@"
+	"$@" || die
+}
+
+fi
+
+EXPORT_FUNCTIONS src_compile src_install src_test
diff --git a/eclass/golang-vcs-snapshot.eclass b/eclass/golang-vcs-snapshot.eclass
new file mode 100644
index 0000000..06aabd2
--- /dev/null
+++ b/eclass/golang-vcs-snapshot.eclass
@@ -0,0 +1,129 @@
+# Copyright 1999-2024 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+# @ECLASS: golang-vcs-snapshot.eclass
+# @MAINTAINER:
+# Samuel Bernardo <samuelbernardo.mail@gmail.com>
+# @AUTHORS:
+# William Hubbs <williamh@gentoo.org>
+# @SUPPORTED_EAPIS: 8
+# @PROVIDES: golang-base
+# @BLURB: eclass to unpack VCS snapshot tarballs for Go software
+# @DEPRECATED: go-module.eclass
+# @DESCRIPTION:
+# This eclass provides a convenience src_unpack() which unpacks the
+# first tarball mentioned in SRC_URI to its appropriate location in
+# ${WORKDIR}/${P}, treating ${WORKDIR}/${P} as a go workspace.
+# Also, it provides a downstream method of vendoring packages.
+#
+# The location where the tarball is extracted is defined as
+# ${WORKDIR}/${P}/src/${EGO_PN}. The location of vendored packages is
+# defined as ${WORKDIR}/${P}/src/${EGO_PN%/*}/vendor to match Go's
+# vendoring setup.
+#
+# The typical use case is VCS snapshots coming from github, bitbucket
+# and similar services.
+#
+# Please note that this eclass currently handles only tarballs
+# (.tar.gz), but support for more formats may be added in the future.
+#
+# @EXAMPLE:
+#
+# @CODE
+# EGO_PN=github.com/user/package
+# EGO_VENDOR=(
+#	"github.com/xenolf/lego 6cac0ea7d8b28c889f709ec7fa92e92b82f490dd"
+# "golang.org/x/crypto 453249f01cfeb54c3d549ddb75ff152ca243f9d8 github.com/golang/crypto"
+# )
+#
+# inherit golang-vcs-snapshot
+#
+# SRC_URI="https://github.com/example/${PN}/tarball/v${PV} -> ${P}.tar.gz
+# ${EGO_VENDOR_URI}"
+# @CODE
+#
+# The above example will extract the tarball to
+# ${WORKDIR}/${P}/src/github.com/user/package
+# and add the vendored tarballs to ${WORKDIR}/src/${EGO_PN}/vendor
+
+case ${EAPI} in
+	8) ;;
+	*) die "${ECLASS}: EAPI ${EAPI:-0} not supported" ;;
+esac
+
+if [[ -z ${_GOLANG_VCS_SNAPSHOT_ECLASS} ]]; then
+_GOLANG_VCS_SNAPSHOT_ECLASS=1
+
+inherit golang-base go-env
+
+# @ECLASS_VARIABLE: EGO_VENDOR
+# @DESCRIPTION:
+# This variable contains a list of vendored packages.
+# The items of this array are strings that contain the
+# import path and the git commit hash for a vendored package.
+# If the import path does not start with github.com, the third argument
+# can be used to point to a github repository.
+
+declare -arg EGO_VENDOR
+
+_golang-vcs-snapshot_set_vendor_uri() {
+	EGO_VENDOR_URI=
+	local lib
+	for lib in "${EGO_VENDOR[@]}"; do
+		lib=(${lib})
+		if [[ -n ${lib[2]} ]]; then
+			EGO_VENDOR_URI+=" https://${lib[2]}/archive/${lib[1]}.tar.gz -> ${lib[2]//\//-}-${lib[1]}.tar.gz"
+		else
+			EGO_VENDOR_URI+=" https://${lib[0]}/archive/${lib[1]}.tar.gz -> ${lib[0]//\//-}-${lib[1]}.tar.gz"
+		fi
+	done
+	readonly EGO_VENDOR_URI
+}
+
+_golang-vcs-snapshot_set_vendor_uri
+unset -f _golang-vcs-snapshot_set_vendor_uri
+
+_golang-vcs-snapshot_dovendor() {
+	local VENDOR_PATH=$1 VENDORPN=$2 TARBALL=$3
+	rm -rf "${VENDOR_PATH}/${VENDORPN}" || die
+	mkdir -p "${VENDOR_PATH}/${VENDORPN}" || die
+	tar -C "${VENDOR_PATH}/${VENDORPN}" -x --strip-components 1\
+		-f "${DISTDIR}"/${TARBALL} || die
+}
+
+# @FUNCTION: golang-vcs-snapshot_src_unpack
+# @DESCRIPTION:
+# Extract the first archive from ${A} to the appropriate location for GOPATH.
+# Set compile env via go-env.
+golang-vcs-snapshot_src_unpack() {
+	local lib vendor_path x
+	ego_pn_check
+	set -- ${A}
+	x="$1"
+	mkdir -p "${WORKDIR}/${P}/src/${EGO_PN%/...}" || die
+	tar -C "${WORKDIR}/${P}/src/${EGO_PN%/...}" -x --strip-components 1 \
+		-f "${DISTDIR}/${x}" || die
+
+	if [[ -n "${EGO_VENDOR}" ]]; then
+		vendor_path="${WORKDIR}/${P}/src/${EGO_PN%/...}/vendor"
+		mkdir -p "${vendor_path}" || die
+		for lib in "${EGO_VENDOR[@]}"; do
+			lib=(${lib})
+			if [[ -n ${lib[2]} ]]; then
+				einfo "Vendoring ${lib[0]} ${lib[2]//\//-}-${lib[1]}.tar.gz"
+				_golang-vcs-snapshot_dovendor "${vendor_path}" ${lib[0]} \
+					${lib[2]//\//-}-${lib[1]}.tar.gz
+			else
+				einfo "Vendoring ${lib[0]} ${lib[0]//\//-}-${lib[1]}.tar.gz"
+				_golang-vcs-snapshot_dovendor "${vendor_path}" ${lib[0]} \
+				${lib[0]//\//-}-${lib[1]}.tar.gz
+			fi
+		done
+	fi
+
+	go-env_set_compile_environment
+}
+
+fi
+
+EXPORT_FUNCTIONS src_unpack