All, here is the latest version of this eclass, which I will commit an hour from now if no one has any objections.
Thanks, William
# Copyright 2015 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: $
# @ECLASS: golang-vcs.eclass
# @MAINTAINER:
# William Hubbs <willi...@gentoo.org>
# @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 eutils
case "${EAPI:-0}" in
5)
;;
*)
die "${ECLASS}: Unsupported eapi (EAPI=${EAPI})"
;;
esac
EXPORT_FUNCTIONS src_unpack
if [[ -z ${_GOLANG_VCS} ]]; then
_GOLANG_VCS=1
# We depend on dev-vcs/git since it is the most used vcs for Go
# packages. However we will not depend on all vcs's Go supports at the
# eclass level. If your package, or one of its dependencies, uses
# another vcs, please depend on it directly.
DEPEND=">=dev-lang/go-1.4.2
dev-vcs/git"
# @ECLASS-VARIABLE: EGO_PN
# @REQUIRED
# @DESCRIPTION:
# This is the import path for the go package. Please emerge dev-lang/go
# and read "go help importpath" for syntax.
#
# Example:
# @CODE
# EGO_PN="github.com/user/project"
# @CODE
# @ECLASS-VARIABLE: EGO_STORE_DIR
# @DESCRIPTION:
# Storage directory for Go sources.
#
# This is intended to be set by the user in make.conf. Ebuilds must not set
# it.
#
# EGO_STORE_DIR=${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 and set GOPATH.
_golang-vcs_env_setup() {
debug-print-function ${FUNCNAME} "$@"
local distdir=${PORTAGE_ACTUAL_DISTDIR:-${DISTDIR}}
: ${EGO_STORE_DIR:=${distdir}/go-src}
[[ -n ${EVCS_UMASK} ]] && umask_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}"
export GOPATH="${EGO_STORE_DIR}"
[[ -n ${EVCS_UMASK} ]] && umask_pop
mkdir -p "${S}" ||
die "${ECLASS}: unable to create ${S}"
}
# @FUNCTION: _golang-vcs_fetch
# @INTERNAL
# @DESCRIPTION:
# Retrieve the EGO_PN go package along with its dependencies.
_golang-vcs_fetch() {
debug-print-function ${FUNCNAME} "$@"
[[ -z ${EGO_PN} ]] &&
die "${ECLASS}: EGO_PN is not set"
if [[ -n ${EVCS_OFFLINE} ]]; then
export GOPATH="${S}:${EGO_STORE_DIR}"
return
fi
[[ -n ${EVCS_UMASK} ]] && umask_push ${EVCS_UMASK}
set -- go get -d -t -u -v -x "${EGO_PN}"
echo "$@"
"$@"
# I can't call die here, depending on the outcome of the following
# upstream issue.
# https://github.com/golang/go/issues/11090
# Hopefully this will be fixed so that "go get -d" is successful if
# everything is downloaded. In that case, I can call die.
# That would also remove the test below this line.
[[ ! -d "${EGO_STORE_DIR}/src/${EGO_PN}" ]] &&
die "${ECLASS}: unable to retrieve ${EGO_PN} or a dependency"
[[ -n ${EVCS_UMASK} ]] && umask_pop
export GOPATH="${S}:${EGO_STORE_DIR}"
}
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
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