iso: add initial support for finit

lib/iso/calamares.sh

@@ -36,6 +36,11 @@ write_services_66_conf(){
     write_services_conf 'svDir' '/etc/66/service' 'runsvDir' '/var/lib/66/system' > "$conf"
 }
 
+write_services_finit_conf(){
+    local conf="$1"/services-finit.conf
+    write_service_conf 'svDir' '/etc/finit.d/available' 'runsvDir' '/etc/finit.d/enabled' > "$conf"
+}
+
 write_postcfg(){
     local yaml
     yaml=$(write_yaml_header)

lib/iso/services.sh

@@ -54,4 +54,14 @@ add_svc_66(){
     done
 }
 
+add_sv_finit(){
+    local mnt="$1" names="$2"
+    for svc in $names; do
+        if [[ -f "$mnt"/etc/finit/available/"$svc" ]]; then
+            msg2 "Setting %s: [%s]" "${INITSYS}" "$svc"
+            chroot "$mnt" initctl enable "$svc"
+        fi
+    done
+}
+
 #}}}