__matrix_synapse: add support for Ubuntu

type/__matrix_synapse/gencode-remote

@@ -8,7 +8,7 @@ case "$os" in
 		synapse_conf_dir=/etc/synapse
 		synapse_service=synapse
 		;;
-	debian)
+	debian|ubuntu)
 		synapse_conf_dir=/etc/matrix-synapse
 		synapse_service=matrix-synapse
 		;;

type/__matrix_synapse/manifest

@@ -20,10 +20,9 @@
 
 # OS-specific configuration.
 os=$(cat "$__global/explorer/os")
-distribution=$(cat "$__global/explorer/lsb_codename")
 
 case "$os" in
-	debian)
+	debian|ubuntu)
 		synapse_user=matrix-synapse
 		synapse_pkg=matrix-synapse-py3
 		synapse_service=matrix-synapse
@@ -31,22 +30,13 @@ case "$os" in
 		synapse_conf_dir='/etc/matrix-synapse'
 		synapse_data_dir='/var/lib/matrix-synapse'
 
-		# We use upstream's APT repository in order to stay up-to-date: upstream
-		# moves fast and downstream debian package is necessarily delayed.
-		case "$distribution" in
-			buster|bulleye|bookworm|sid)
-				__apt_key matrix-org \
-					--uri https://packages.matrix.org/debian/matrix-org-archive-keyring.gpg
-				require="__apt_key/matrix-org" __apt_source matrix-org \
-					--uri https://packages.matrix.org/debian/ \
-					--component main
-				package_req="__apt_source/matrix-org"
-				;;
-				*)
-					echo "Unknown debian release '$distribution'. Exiting" >&2
-					exit 1
-				;;
-		esac
+		__apt_key matrix-org \
+			--uri https://packages.matrix.org/debian/matrix-org-archive-keyring.gpg
+
+		require="__apt_key/matrix-org" __apt_source matrix-org \
+			--uri https://packages.matrix.org/debian/ \
+			--component main
+		package_req="__apt_source/matrix-org"
 		;;
 	alpine)
 		synapse_user=synapse
@@ -330,8 +320,8 @@ for directory in $DATA_DIR $LOG_DIR; do
 		--owner $synapse_user
 done
 
-# Make dpkg-reconfigure happy on debian systems.
-if [ "$os" = "debian" ]; then
+# Make dpkg-reconfigure happy on debian-based systems.
+if [ "$os" = "debian" ] || [ "$os" = "ubuntu" ]; then
 	require="$synapse_req" __file "$synapse_conf_dir/conf.d/server_name.yaml" \
 		--owner $synapse_user \
 		--source - <<- EOF