add s6 and runit scripts

contrib/meson.build

@@ -1,2 +1,4 @@
 subdir('openrc')
+subdir('runit')
+subdir('s6')
 subdir('systemd')

contrib/runit/meson.build

@@ -0,0 +1,17 @@
+runit = get_option('runit')
+
+runit_config_data = configuration_data()
+runit_config_data.set('LIBEXECDIR', join_paths(get_option('prefix'), get_option('libexecdir'), meson.project_name()))
+
+runit_config_data_file = configure_file(
+    input: 'run.in',
+    output: 'run',
+    configuration: runit_config_data
+)
+
+if runit
+    install_data(
+        runit_config_data_file,
+        install_dir: join_paths(get_option('sysconfdir'), 'runit', 'sv', 'tufmanager')
+    )
+endif

contrib/runit/run.in

@@ -0,0 +1,3 @@
+#!/bin/sh
+sv check dbus >/dev/null || exit 1
+exec @LIBEXECDIR@/tuf-server -f

contrib/s6/dependencies

@@ -0,0 +1 @@
+dbus

contrib/s6/meson.build

@@ -0,0 +1,17 @@
+s6 = get_option('s6')
+
+s6_config_data = configuration_data()
+s6_config_data.set('LIBEXECDIR', join_paths(get_option('prefix'), get_option('libexecdir'), meson.project_name()))
+
+s6_config_data_file = configure_file(
+    input: 'run.in',
+    output: 'run',
+    configuration: s6_config_data
+)
+
+if s6
+    install_data(
+        [s6_config_data_file, 'type', 'dependencies'],
+        install_dir: join_paths(get_option('sysconfdir'), 's6', 'sv', 'tufmanager')
+    )
+endif

contrib/s6/run.in

@@ -0,0 +1,3 @@
+#!/usr/bin/execlineb -P
+fdmove -c 2 1
+exec @LIBEXECDIR@/tuf-server -f

contrib/s6/type

@@ -0,0 +1 @@
+longrun

meson_options.txt

@@ -34,6 +34,18 @@ option(
     value: false,
     description: 'Install OpenRC script'
 )
+option(
+    'runit',
+    type : 'boolean',
+    value: false,
+    description: 'Install runit script'
+)
+option(
+    's6',
+    type : 'boolean',
+    value: false,
+    description: 'Install s6 scripts'
+)
 option(
     'systemd',
     type : 'boolean',