net-im/dendrite: Drop polylith mode including possible breakage

Upstream dropped the polylith mode in 0.12.0 as announced in earlier releases.
This leads to some renaming of files, see e.g. upstream issue 2975[1].

As I've got no OpenRC system or container right now I can't test the modified
OpenRC init scripts. In case you have one feedback either way is appreciated
- confirmations that it's working, bug reports if it failes or even just
suggestions for improvement.

As the ebuild didn't build (failed in the install phase) before this fixup
there is no revbump necessary.

This commit also adds an service file which is based upon upstream's
example for their monolith setup (but with paths in /usr instead of opt)[2].

[1] https://github.com/matrix-org/dendrite/issues/2975
[2] https://github.com/matrix-org/dendrite/blob/main/docs/systemd/monolith-example.service

Signed-off-by: Nils Freydank <nils.freydank@posteo.de>

net-im/dendrite/dendrite-0.12.0.ebuild

@@ -1,9 +1,13 @@
 # Copyright 2022-2023 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
+# TODO:
+# 1. fix LICENSE field
+# 2. fix init scripts
+
 EAPI="8"
 EGO_PN="github.com/matrix-org/dendrite/"
-inherit go-module
+inherit go-module systemd
 COMMIT_ID=""
 
 DESCRIPTION="Matrix homeserver written in go"
@@ -20,7 +24,6 @@ fi
 SRC_URI+=" https://files.holgersson.xyz/gentoo/distfiles/${P}-deps.tar.xz"
 
 KEYWORDS="~amd64"
-# FIXME
 LICENSE="Apache-2.0"
 SLOT="0"
 IUSE=""
@@ -54,25 +57,32 @@ src_test() {
 }
 
 src_install() {
-	# Install the binaries from bin and prefix everything with "dendrite".
+	# Install files from bin, prefix with 'dendrite' if necessary.
 	newbin bin/create-account dendrite-create-account
+
 	dobin bin/dendrite-demo-pinecone
 	dobin bin/dendrite-demo-yggdrasil
-	dobin bin/dendrite-monolith-server
+	dobin bin/dendrite
-	dobin bin/dendrite-polylith-multi
 	dobin bin/dendrite-upgrade-tests
+
+	# prefix
 	newbin bin/furl dendrite-furl
 	newbin bin/generate-config dendrite-generate-config
 	newbin bin/generate-keys dendrite-generate-keys
 	newbin bin/resolve-state dendrite-resolve-state
 
+	# Provide a sample configuration.
 	dodir "/etc/dendrite"
 	insinto /etc/dendrite
-	doins "${S}/dendrite-sample.monolith.yaml"
+	doins "${S}/dendrite-sample.yaml"
-	doins "${S}/dendrite-sample.polylith.yaml"
+
+	# Install init scripts for OpenRC
 	newinitd "${FILESDIR}"/dendrite.initd dendrite
 	newconfd "${FILESDIR}"/dendrite.confd dendrite
 
+	# Install a systemd unit.
+	systemd_newunit "${FILESDIR}"/dendrite.service dendrite.service
+
 	keepdir "/var/log/dendrite"
 	fowners dendrite:dendrite "/var/log/dendrite"
 }

net-im/dendrite/files/dendrite.confd

@@ -7,9 +7,6 @@ rc_ulimit="-n 4096"
 # this should be set to "loopback" which provides the loopback interface.
 rc_need="loopback"
 
-# Dendrite mode. Either "monolith" or "polylith".
-DENDRITE_MODE="monolith"
-
 # If your configuration of dendrite uses locally running PostgreSQL
 # you may want to uncomment the next line
 # rc_need="${rc_need} postgresql"
@@ -23,5 +20,5 @@ DENDRITE_MODE="monolith"
 # rc_need="${rc_need} nginx"
 
 # Additional command-line options. These can be used to set the bind address and port of the monolith server,
-# among other things. See `dendrite-monolith-server -help` or `dendrite-polylith-multi -help` for a full list.
+# among other things. See `dendrite -help` for a full list.
 # DENDRITE_OPTS="-http-bind-address localhost:8008"

net-im/dendrite/files/dendrite.initd

@@ -13,19 +13,8 @@ else
 : ${DENDRITE_RC_CONFIG:=${RC_PREFIX%/}/etc/conf.d/dendrite}
 fi
 
-if [ -n "${DENDRITE_BINARY}" ] ; then
+command="${RC_PREFIX%/}/usr/bin/dendrite"
-	: # Do nothing, DENDRITE_BINARY is set externally.
-elif [ -z "${DENDRITE_MODE}" -o "${DENDRITE_MODE}" == "monolith" ] ; then
-	DENDRITE_BINARY=${RC_PREFIX%/}/usr/bin/dendrite-monolith-server
-elif [ "${DENDRITE_MODE}" == "polylith" ] ; then
-	DENDRITE_BINARY:=${RC_PREFIX%/}/usr/bin/dendrite-polylith-multi
-else
-	echo "Unknown dendrite mode: \"${DENDRITE_MODE}\"." >&2
-	echo "Check the DENDRITE_MODE variable in ${DENDRITE_RC_CONFIG}" >&2
-	exit 1
-fi
 
-command="${DENDRITE_BINARY}"
 pidfile="${DENDRITE_PIDFILE}"
 command_background=true
 command_user="dendrite:dendrite"

net-im/dendrite/files/dendrite.service

@@ -0,0 +1,19 @@
+[Unit]
+Description=Dendrite Matrix Homeserver
+After=syslog.target
+After=network.target
+After=postgresql.service
+
+[Service]
+Environment=GODEBUG=madvdontneed=1
+RestartSec=2s
+Type=simple
+User=dendrite
+Group=dendrite
+ExecStart=/usr/bin/dendrite --config=/etc/dendrite/config.yaml
+WorkingDirectory=/var/lib/dendrite/
+Restart=always
+LimitNOFILE=65536
+
+[Install]
+WantedBy=multi-user.target