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gentoo-overlay/eclass/golang-vcs.eclass

140 lines
3.3 KiB

# Copyright 1999-2021 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
# @ECLASS: golang-vcs.eclass
# @MAINTAINER:
# William Hubbs <williamh@gentoo.org>
# @SUPPORTED_EAPIS: 5 6 7
# @BLURB: Eclass for fetching and unpacking go repositories.
# @DESCRIPTION:
# This eclass is written to ease the maintenance of live ebuilds
# of software written in the Go programming language.
inherit estack eutils golang-base
case "${EAPI:-0}" in
5|6|7)
;;
*)
die "${ECLASS}: Unsupported eapi (EAPI=${EAPI})"
;;
esac
EXPORT_FUNCTIONS src_unpack
if [[ -z ${_GOLANG_VCS} ]]; then
_GOLANG_VCS=1
PROPERTIES+=" live"
# @ECLASS-VARIABLE: EGO_PN
# @REQUIRED
# @DESCRIPTION:
# This is the import path for the go package(s). Please emerge dev-lang/go
# and read "go help importpath" for syntax.
#
# Example:
# @CODE
# EGO_PN="github.com/user/package"
# EGO_PN="github.com/user1/package1 github.com/user2/package2"
# @CODE
# @ECLASS-VARIABLE: EGO_STORE_DIR
# @USER_VARIABLE
# @DESCRIPTION:
# Storage directory for Go sources.
#
# This is intended to be set by the user in make.conf. Ebuilds must not set
# it.
#
# EGO_STORE_DIR=${DISTDIR}/go-src
# @ECLASS-VARIABLE: EVCS_OFFLINE
# @DEFAULT_UNSET
# @DESCRIPTION:
# If non-empty, this variable prevents any online operations.
# @ECLASS-VARIABLE: EVCS_UMASK
# @DEFAULT_UNSET
# @DESCRIPTION:
# Set this variable to a custom umask. This is intended to be set by
# users. By setting this to something like 002, it can make life easier
# for people who do development as non-root (but are in the portage
# group) and use FEATURES=userpriv.
# @FUNCTION: _golang-vcs_env_setup
# @INTERNAL
# @DESCRIPTION:
# Create EGO_STORE_DIR if necessary.
_golang-vcs_env_setup() {
debug-print-function ${FUNCNAME} "$@"
local distdir=${PORTAGE_ACTUAL_DISTDIR:-${DISTDIR}}
: ${EGO_STORE_DIR:=${distdir}/go-src}
[[ -n ${EVCS_UMASK} ]] && eumask_push $EVCS_UMASK
if [[ ! -d ${EGO_STORE_DIR} ]]; then
(
addwrite /
mkdir -p "${EGO_STORE_DIR}"
) || die "${ECLASS}: unable to create ${EGO_STORE_DIR}"
fi
addwrite "${EGO_STORE_DIR}"
[[ -n ${EVCS_UMASK} ]] && eumask_pop
mkdir -p "${WORKDIR}/${P}/src" ||
die "${ECLASS}: unable to create ${WORKDIR}/${P}"
return 0
}
# @FUNCTION: _golang-vcs_fetch
# @INTERNAL
# @DESCRIPTION:
# Retrieve the EGO_PN go package along with its dependencies.
_golang-vcs_fetch() {
debug-print-function ${FUNCNAME} "$@"
ego_pn_check
if [[ -z ${EVCS_OFFLINE} ]]; then
[[ -n ${EVCS_UMASK} ]] && eumask_push ${EVCS_UMASK}
set -- env GOPATH="${EGO_STORE_DIR}" go get -d -t -u -v -x "${EGO_PN}"
echo "$@"
"$@" || die
# The above dies if you pass repositories in EGO_PN instead of
# packages, e.g. golang.org/x/tools instead of golang.org/x/tools/cmd/vet.
# This is being discussed in the following upstream issue:
# https://github.com/golang/go/issues/11090
[[ -n ${EVCS_UMASK} ]] && eumask_pop
fi
local go_srcpath="${WORKDIR}/${P}/src/${EGO_PN%/...}"
set -- mkdir -p "${go_srcpath}"
echo "$@"
"$@" || die "Unable to create ${go_srcpath}"
set -- cp -r "${EGO_STORE_DIR}/src/${EGO_PN%/...}" \
"${go_srcpath}/.."
echo "$@"
"$@" || die "Unable to copy sources to ${go_srcpath}"
return 0
}
golang-vcs_src_fetch() {
debug-print-function ${FUNCNAME} "$@"
_golang-vcs_env_setup
_golang-vcs_fetch
}
golang-vcs_src_unpack() {
debug-print-function ${FUNCNAME} "$@"
golang-vcs_src_fetch
}
fi