Introduce the dinit eclass

Signed-off-by: Shin'ya Minazuki <shinyoukai@chaotic.ninja>

eclass/dinit.eclass

@@ -0,0 +1,61 @@
+# Copyright 2026 Shin'ya Minazuki
+# SPDX-License-Identifier: BSD-3-Clause
+# @ECLASS: dinit.eclass
+# @MAINTAINER:
+# Shin'ya Minazuki <shinyoukai@chaotic.ninja>
+# @AUTHOR:
+# Shin'ya Minazuki <shinyoukai@chaotic.ninja>
+# @SUPPORTED_EAPIS: 8
+# @BLURB: helper functions to install service units for sys-process/dinit
+# @DESCRIPTION:
+# This eclass provides a set of functions to install unit files for
+# https://davmac.org/projects/dinit
+# @EXAMPLE:
+#
+# @CODE:
+# inherit dinit
+#
+# src_install() {
+# 		dinit_newservice "${FILESDIR}/gitea.dinit" "${PN}"
+# }
+# @CODE
+
+case ${EAPI} in
+	8) ;;
+	*) die "${ECLASS}: EAPI ${EAPI:-0} not supported" ;;
+esac
+
+if [[ ! ${_DINIT_ECLASS} ]]; then
+_DINIT_ECLASS=1
+
+# @FUNCTION: dinit_doservice
+# @USAGE: <service>
+# @DESCRIPTION:
+# Install dinit service(s).
+# This function uses doins, therefore it is fatal
+dinit_doservice() {
+	debug-print-function "${FUNCNAME}" "$@"
+
+	(
+		insopts -m 0644
+		insinto "${D}/etc/dinit.d"
+		doins "${@}"
+	)
+}
+
+# @FUNCTION: dinit_newservice
+# @USAGE: <old-name> <new-name>
+# @DESCRIPTION:
+# Install dinit service with a new name.
+# This function uses newins, therefore it is fatal
+dinit_newservice() {
+	debug-print-function ${FUNCNAME} "$@"
+
+	(
+		insopts -m 0644
+		insinto "${D}/etc/dinit.d"
+		newins "${@}"
+	)
+}
+
+fi