From 24e11ca9bacbd42f25053547c4ea28c478e10aa3 Mon Sep 17 00:00:00 2001
From: KronoZed <root@kronoz.guru>
Date: Mon, 31 Oct 2016 16:48:45 +0300
Subject: [PATCH] Create golang-live.eclass

---
 eclass/golang-live.eclass | 157 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 157 insertions(+)
 create mode 100644 eclass/golang-live.eclass

diff --git a/eclass/golang-live.eclass b/eclass/golang-live.eclass
new file mode 100644
index 0000000..dce0945
--- /dev/null
+++ b/eclass/golang-live.eclass
@@ -0,0 +1,157 @@
+# Copyright 1999-2016 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Id$
+
+# @ECLASS: golang-live.eclass
+# @MAINTAINER:
+# Mauro Toffanin <toffanin.mauro@gmail.com>
+# @AUTHOR:
+# Mauro Toffanin <toffanin.mauro@gmail.com>
+# @BLURB: Eclass for fetching and unpacking HEAD shapshot of go repositories
+# @DESCRIPTION:
+# This eclass is written to ease the maintenance of live ebuilds
+# of software written in the Go programming language.
+
+inherit golang-base
+
+EXPORT_FUNCTIONS src_prepare src_unpack src_configure src_compile src_install src_test
+
+if [[ -z ${_GOLANG_LIVE_ECLASS} ]]; then
+_GOLANG_LIVE_ECLASS=1
+
+
+# @ECLASS-VARIABLE: EGO_LIVESTORE_DIR
+# @INTERNAL
+# @DESCRIPTION:
+# Storage directory for Go sources.
+# Ebuilds must not set it.
+
+# @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 then switch over to building with FEATURES=userpriv.
+# Or vice-versa. Shouldn't be a security issue here as anyone who has
+# portage group write access already can screw the system over in more
+# creative ways.
+
+
+# Validates use of GOLANG_PKG_DEPENDENCIES.
+# NOTE: a live ebuild should not have go dependencies.
+# TODO: check also if GOLANG_PKG_DEPENDENCIES is an array
+if [[ -n ${GOLANG_PKG_DEPENDENCIES} ]]; then
+	eerror "Ebuild ${CATEGORY}/${PF} specifies GOLANG_PKG_DEPENDENCIES."
+	eerror "Please, fix it by removing GOLANG_PKG_DEPENDENCIES entirely."
+	die "Banned variable GOLANG_PKG_DEPENDENCIES is set"
+fi
+
+
+# @FUNCTION: golang-live_src_fetch
+# @DESCRIPTION:
+# Fetch a go package along with its dependencies.
+golang-live_src_fetch() {
+	debug-print-function ${FUNCTION} "$@"
+
+	[[ -z ${EGO_LIVESTORE_DIR} ]] && die "No EGO_LIVESTORE_DIR set (golang-live_src_unpack not called?)."
+
+	# Fetch the go package
+	[[ -n ${EVCS_UMASK} ]] && eumask_push ${EVCS_UMASK}
+
+	set -- env \
+		GOPATH="${EGO_LIVESTORE_DIR}" \
+		go get -d -u -v -t -tags="${GOLANG_PKG_TAGS}" ${@}
+	echo "$@"
+	"$@" || die
+
+	[[ -n ${EVCS_UMASK} ]] && eumask_pop
+}
+
+# @FUNCTION: golang-live_src_unpack
+# @DESCRIPTION:
+# Unpack the source archive.
+golang-live_src_unpack() {
+	debug-print-function ${FUNCNAME} "$@"
+
+	# Creates EGO_LIVESTORE_DIR if necessary.
+	local distdir=${PORTAGE_ACTUAL_DISTDIR:-${DISTDIR}}
+	: EGO_LIVESTORE_DIR=${EGO_LIVESTORE_DIR:=${distdir}/go-${PN}-livesrc}
+
+	[[ -n ${EVCS_UMASK} ]] && eumask_push ${EVCS_UMASK}
+
+	if [[ ! -d ${EGO_LIVESTORE_DIR} ]]; then
+		(
+			addwrite /
+			mkdir -p "${EGO_LIVESTORE_DIR}"
+		) || die "${ECLASS}: unable to create ${EGO_LIVESTORE_DIR}"
+	fi
+
+	addwrite "${EGO_LIVESTORE_DIR}"
+
+	[[ -n ${EVCS_UMASK} ]] && eumask_pop
+
+	# Retrieves the GOLANG_PKG_IMPORTPATH go package.
+	golang-live_src_fetch "${GOLANG_PKG_IMPORTPATH}/${GOLANG_PKG_NAME}"/...
+
+	# Creates SOURCE directory.
+	mkdir -p "${S}" || die
+}
+
+
+# @FUNCTION: golang-live_src_prepare
+# @DESCRIPTION:
+# Prepare source code.
+golang-live_src_prepare() {
+	debug-print-function ${FUNCNAME} "${@}"
+
+	# Sets up GoLang build environment.
+	golang_setup
+
+	# Imports all go dependencies
+	ebegin "Importing all the sources in ${GOPATH}"
+		cp -r "${EGO_LIVESTORE_DIR}/src" "${GOPATH}" || die "Unable to copy sources to ${GOPATH}"
+	eend
+
+	golang-base_src_prepare
+}
+
+
+# @FUNCTION: golang-live_src_configure
+# @DESCRIPTION:
+# Configure the package.
+golang-live_src_configure() {
+	debug-print-function ${FUNCNAME} "$@"
+
+	golang-base_src_configure
+}
+
+# @FUNCTION: golang-live_src_compile
+# @DESCRIPTION:
+# Compiles the package.
+golang-live_src_compile() {
+	debug-print-function ${FUNCNAME} "$@"
+
+	golang-base_src_compile
+}
+
+# @FUNCTION: golang-live_src_install
+# @DESCRIPTION:
+# Installs binaries and documents from DOCS or HTML_DOCS arrays.
+golang-live_src_install() {
+	debug-print-function ${FUNCNAME} "$@"
+
+	golang-base_src_install
+}
+
+# @FUNCTION: golang-live_src_test
+# @DESCRIPTION:
+# Runs the unit tests for the main package.
+golang-live_src_test() {
+	debug-print-function ${FUNCNAME} "$@"
+
+	golang-base_src_test
+}
+
+
+fi