udpxy: rework init script and add disabled/respawn configs.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

net/udpxy/Makefile

@@ -8,7 +8,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=udpxy
-PKG_VERSION:=2014-08-24
+PKG_VERSION:=2014-10-27
 PKG_RELEASE:=$(PKG_SOURCE_VERSION)
 
 PKG_SOURCE_PROTO:=git

net/udpxy/files/udpxy.conf

@@ -1,4 +1,6 @@
 config udpxy
+	option disabled '1'
+	option respawn '1'
 	option verbose '0'
 	option status '1'
 	# option bind '0.0.0.0'

net/udpxy/files/udpxy.init

@@ -4,57 +4,64 @@
 START=50
 USE_PROCD=1
 
-udpxy_parse() {
+append_arg() {
 	local cfg="$1"
+	local var="$2"
+	local opt="$3"
+	local def="$4"
+	local val
 
-	local cfg_verbose
-	local cfg_status
-	local cfg_mcsub_renew
-	local cfg_bind
-	local cfg_port
-	local cfg_source
-	local cfg_max_clients
-	local cfg_log_file
-	local cfg_buffer_size
-	local cfg_buffer_messages
-	local cfg_buffer_time
-	local cfg_nice_increment
-	local cfg_mcsub_renew
-
-	config_get_bool cfg_verbose $cfg 'verbose' 0
-	config_get_bool cfg_status $cfg 'status' 1
-	config_get cfg_bind $cfg 'bind'
-	config_get cfg_port $cfg 'port' '4022'
-	config_get cfg_source $cfg 'source'
-	config_get cfg_max_clients $cfg 'max_clients'
-	config_get cfg_log_file $cfg 'log_file'
-	config_get cfg_buffer_size $cfg 'buffer_size'
-	config_get cfg_buffer_messages $cfg 'buffer_messages'
-	config_get cfg_buffer_time $cfg 'buffer_time'
-	config_get cfg_nice_increment $cfg 'nice_increment'
-	config_get cfg_mcsub_renew $cfg 'mcsub_renew'
+	config_get val "$cfg" "$var"
+	[ -n "$val" -o -n "$def" ] && procd_append_param command $opt "${val:-$def}"
+}
+
+append_bool() {
+	local cfg="$1"
+	local var="$2"
+	local opt="$3"
+	local def="$4"
+	local val
+
+	config_get_bool val "$cfg" "$var" "$def"
+	[ "$val" = 1 ] && procd_append_param command "$opt"
+}
+
+start_instance() {
+	local cfg="$1"
+	local aux
+
+	config_get_bool aux "$cfg" 'disabled' '0'
+	[ "$aux" = 1 ] && return 1
 
 	procd_open_instance
 
 	procd_set_param command /usr/bin/udpxy
-	procd_append_param command -T -p $cfg_port
-	[ "$cfg_verbose" -eq 1 ] && procd_append_param command -v
-	[ "$cfg_status" -eq 1 ] && procd_append_param command -S
-	[ ! -z "$cfg_bind" ] && procd_append_param command -a $cfg_bind
-	[ ! -z "$cfg_source" ] && procd_append_param command -m $cfg_source
-	[ ! -z "$cfg_max_clients" ] && procd_append_param command -c $cfg_max_clients
-	[ ! -z "$cfg_log_file" ] && procd_append_param command -l $cfg_log_file
-	[ ! -z "$cfg_buffer_size" ] && procd_append_param command -B $cfg_buffer_size
-	[ ! -z "$cfg_buffer_messages" ] && procd_append_param command -R $cfg_buffer_messages
-	[ ! -z "$cfg_buffer_time" ] && procd_append_param command -H $cfg_buffer_time
-	[ ! -z "$cfg_nice_increment" ] && procd_append_param command -n $cfg_nice_increment
-	[ ! -z "$cfg_mcsub_renew" ] && procd_append_param command -M $cfg_mcsub_renew
-
-	procd_set_param respawn
+	procd_append_param command "-T"
+
+	append_bool "$cfg" verbose "-V"
+	append_bool "$cfg" status "-S"
+	append_arg "$cfg" bind "-a"
+	append_arg "$cfg" port "-p"
+	append_arg "$cfg" source "-m"
+	append_arg "$cfg" max_clients "-c"
+	append_arg "$cfg" log_file "-l"
+	append_arg "$cfg" buffer_size "-B"
+	append_arg "$cfg" buffer_messages "-R"
+	append_arg "$cfg" buffer_time "-H"
+	append_arg "$cfg" nice_increment "-n"
+	append_arg "$cfg" mcsub_renew "-M"
+
+	config_get_bool aux "$cfg" 'respawn' '0'
+	[ "$aux" = 1 ] && procd_set_param respawn
+
 	procd_close_instance
 }
 
+service_triggers() { 
+	procd_add_reload_trigger "udpxy" 
+}
+
 start_service() {
 	config_load udpxy
-	config_foreach udpxy_parse udpxy
+	config_foreach start_instance udpxy
 }