[__runit*] Add support for Debian/Devuan

Apparently these types were only supporting FreeBSD, this brings in support for
Debian and Devuan by taking advantage of
https://packages.debian.org/bullseye/runit-run

type/__runit/gencode-remote

@@ -1,5 +1,12 @@
 #!/bin/sh -e
 
+
+os="$(cat "${__global}/explorer/os")"
+if [ "${os}" != "freebsd" ]; then
+	exit
+fi
+
+# FreeBSD-specific
 svdir="/var/service"
 svdir_exists="$(cat "${__object}/explorer/svdir-exists")"
 runit_etc="$(cat "${__object}/explorer/runit-etc")"

type/__runit/manifest

@@ -2,9 +2,22 @@
 
 __package "runit"
 
+os="$(cat "${__global}/explorer/os")"
+case "${os}" in
+	debian|devuan)
+		# zero-config sysvinit and systemd compatibility
+		__package runit-run
+	;;
+	freebsd)
 		__key_value \
 			--file "/etc/rc.conf" \
 			--key "runsvdir_enable" \
 			--delimiter "=" \
 			--value "yes" \
 			"runsvdir_enable"
+	;;
+	*)
+		echo "Your OS '${os}' is currently not supported." >&2
+		exit 1
+	;;
+esac

type/__runit_service/man.rst

@@ -27,6 +27,11 @@ BOOLEAN PARAMETERS
 log
    Setup logging with `svlogd -tt ./main`.
 
+OPTIONAL PARAMETERS
+-------------------
+state
+   Whether this service is to be 'present' (default) or 'absent'.
+
 
 EXAMPLES
 --------

type/__runit_service/manifest

@@ -1,8 +1,21 @@
 #!/bin/sh -e
 
+os="$(cat "${__global}/explorer/os")"
+case "${os}" in
+	debian|devuan)
+		svdir="/etc/service"
+	;;
+	*bsd)
 		svdir="/var/service"
+	;;
+	*)
+		echo "Your OS '${OS}' is currently not supported." >&2
+		exit 1
+	;;
+esac
+
 sv="${__object_id}"
-state="present"
+state="$(cat "${__object}/parameter/state")"
 run_file="${svdir}/${sv}/run"
 
 source="$(cat "$__object/parameter/source")"
@@ -15,6 +28,10 @@ __directory --state "${state}" "${svdir}/${sv}"
 
 export require="__directory${svdir}/${sv}"
 
+if [ "${state}" != "present" ]; then
+	# We are done here, the service gets removed
+	exit
+fi
 
 if [ -f "${__object}/parameter/log" ]; then
 	# Setup logger if requested

type/__runit_service/parameter/default/state

@@ -0,0 +1 @@
+present

type/__runit_service/parameter/optional

@@ -0,0 +1 @@
+state