dotnet-utils.eclass: Utilities for net6.0 packages

Functions for generating nuget uris and restoring
them in dotnet.

Signed-off-by: Anna Figueiredo Gomes <anna-cli@tutanota.com>

eclass/dotnet-utils.eclass

@@ -0,0 +1,154 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+# @ECLASS: dotnet-utils.eclass
+# @MAINTAINER:
+# anna-cli@tutanota.com
+# @AUTHOR:
+# Anna Figueiredo Gomes <anna-cli@tutanota.com>
+# @SUPPORTED_EAPIS: 7 8
+# @BLURB: common functions and variables for dotnet builds
+
+case "${EAPI:-0}" in
+	7|8)
+		;;
+	*)
+		die "Unsupported EAPI=${EAPI} for ${ECLASS}"
+		;;
+esac
+
+inherit multiprocessing
+
+BDEPEND=">=virtual/dotnet-sdk-6.0"
+EXPORT_FUNCTIONS src_unpack src_prepare src_compile
+
+# @ECLASS_VARIABLE: DOTNET_CLI_TELEMETRY_OPTOUT
+# @DESCRIPTION:
+# Disables telemetry on dotnet.
+export DOTNET_CLI_TELEMETRY_OPTOUT=1
+# @ECLASS_VARIABLE: MSBUILDDISABLENODEREUSE
+# @DESCRIPTION:
+# Stops the dotnet node from not stopping after the build is done.
+export MSBUILDDISABLENODEREUSE=1
+# @ECLASS_VARIABLE: DOTNET_NOLOGO
+# @DESCRIPTION:
+# Disables the header logo when running dotnet commands.
+export DOTNET_NOLOGO=1
+
+# Needed otherwise the binaries break
+RESTRICT="strip"
+
+# @ECLASS_VARIABLE: NUGETS
+# @DEFAULT_UNSET
+# @PRE_INHERIT
+# @DESCRIPTION:
+# bash string containing all nuget package wants to download
+# used by nuget_uris()
+# Example:
+# @CODE
+# NUGETS="
+# ImGui.NET-1.87.2
+# Config.Net-4.19.0
+# "
+# inherit nuget
+# ...
+# SRC_URI="$(nuget_uris)"
+# @CODE
+
+# @FUNCTION: nuget_uris
+# @DESCRIPTION:
+# Generates the URIs to put in SRC_URI to help fetch dependencies.
+# Uses first argument as nuget list.
+# If no argument provided, uses NUGETS variable.
+nuget_uris() {
+	local -r regex='^([a-zA-Z0-9_.-]+)-([0-9]+\.[0-9]+\.[0-9]+.*)$'
+	local nuget nugets
+
+	if [[ -n ${@} ]]; then
+		nugets="$@"
+	elif [[ -n ${NUGETS} ]]; then
+		nugets="${NUGETS}"
+	else
+		eerror "NUGETS variable is not defined and nothing passed as argument"
+		die "Can't generate SRC_URI from empty input"
+	fi
+
+	for nuget in ${nugets}; do
+		local name version url
+		[[ $nuget =~ $regex ]] || die "Could not parse name and version from nuget: $nuget"
+		name="${BASH_REMATCH[1]}"
+		version="${BASH_REMATCH[2]}"
+		url="https://api.nuget.org/v3-flatcontainer/${name}/${version}/${name}.${version}.nupkg"
+		echo "${url}"
+	done
+}
+
+# @FUNCTION: edotnet
+# @USAGE: [[command] <args> ...]
+# @DESCRIPTION:
+# Call dotnet, passing the supplied arguments.
+# @RETURN: dotnet exit code
+edotnet() {
+	debug-print-function ${FUNCNAME} "$@"
+
+	local ret
+
+	set -- dotnet "${@}" -maxcpucount:$(makeopts_jobs)
+	echo "${@}" >&2
+	"${@}"
+	ret=${?}
+
+	if [[ ${ret} -ne 0 ]]; then
+		die -n "edotnet failed"
+	fi
+
+	return ${ret}
+}
+
+# @FUNCTION: dotnet-utils_src_unpack
+# @DESCRIPTION:
+# Unpacks the package
+dotnet-utils_src_unpack() {
+	debug-print-function ${FUNCNAME} "$@"
+
+	local archive
+	for archive in ${A}; do
+		case "${archive}" in
+			*.nupkg)
+				;;
+			*)
+				unpack ${archive}
+				;;
+		esac
+	done
+}
+
+# @FUNCTION: dotnet-utils_src_prepare
+# @DESCRIPTION:
+# Restores the packages
+
+dotnet-utils_src_prepare() {
+	debug-print-function ${FUNCNAME} "$@"
+	edotnet restore \
+		--runtime linux-x64 \
+		--source "${DISTDIR}" || die
+	default
+}
+
+# @FUNCTION: dotnet-utils_src_compile
+# @DESCRIPTION:
+# Build the package using dotnet publish
+dotnet-utils_src_compile() {
+	debug-print-function ${FUNCNAME} "$@"
+
+	addpredict /opt/dotnet-sdk-bin-6.0/metadata
+
+	edotnet publish \
+		--nologo \
+		--no-restore \
+		--configuration Release \
+		--runtime linux-x64 \
+		"-p:Version=${PV}" \
+		-p:DebugType=embedded \
+		--self-contained || die
+}