luci-app-statistics: add initial support for collect-mod-sensors

Due to a lack of a test environment this support only covers thermal graphs
so far. Please send the output of "rrdtool info /tmp/rrd/*/sensors-*/*.rrd"
if your system happens to support voltage, power or fanspeed sensors.

Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>

applications/luci-app-statistics/luasrc/controller/luci_statistics/luci_statistics.lua

@@ -45,6 +45,7 @@ function index()
 		ping		= _("Ping"),
 		processes	= _("Processes"),
 		rrdtool		= _("RRDTool"),
+		sensors     = _("Sensors"),
 		splash_leases = _("Splash Leases"),
 		tcpconns	= _("TCP Connections"),
 		unixsock	= _("UnixSock"),
@@ -54,7 +55,7 @@ function index()
 	-- our collectd menu
 	local collectd_menu = {
 		output  = { "csv", "network", "rrdtool", "unixsock" },
-		general = { "cpu", "df", "disk", "email", "entropy", "exec", "irq", "load", "memory", "nut", "processes", "uptime" },
+		general = { "cpu", "df", "disk", "email", "entropy", "exec", "irq", "load", "memory", "nut", "processes", "sensors", "uptime" },
 		network = { "conntrack", "dns", "interface", "iptables", "netlink", "olsrd", "ping", "splash_leases", "tcpconns", "iwinfo" }
 	}
 

applications/luci-app-statistics/luasrc/model/cbi/luci_statistics/sensors.lua

@@ -0,0 +1,125 @@
+-- Copyright 2015 Jo-Philipp Wich <jow@openwrt.org>
+-- Licensed to the public under the Apache License 2.0.
+
+require "luci.sys"
+
+local m, s, o
+local sensor_types = {
+	["12v"] = "voltage",
+	["2.0v"] = "voltage",
+	["2.5v"] = "voltage",
+	["3.3v"] = "voltage",
+	["5.0v"] = "voltage",
+	["5v"] = "voltage",
+	["ain1"] = "voltage",
+	["ain2"] = "voltage",
+	["cpu_temp"] = "temperature",
+	["fan1"] = "fanspeed",
+	["fan2"] = "fanspeed",
+	["fan3"] = "fanspeed",
+	["fan4"] = "fanspeed",
+	["fan5"] = "fanspeed",
+	["fan6"] = "fanspeed",
+	["fan7"] = "fanspeed",
+	["in0"] = "voltage",
+	["in10"] = "voltage",
+	["in2"] = "voltage",
+	["in3"] = "voltage",
+	["in4"] = "voltage",
+	["in5"] = "voltage",
+	["in6"] = "voltage",
+	["in7"] = "voltage",
+	["in8"] = "voltage",
+	["in9"] = "voltage",
+	["power1"] = "power",
+	["remote_temp"] = "temperature",
+	["temp1"] = "temperature",
+	["temp2"] = "temperature",
+	["temp3"] = "temperature",
+	["temp4"] = "temperature",
+	["temp5"] = "temperature",
+	["temp6"] = "temperature",
+	["temp7"] = "temperature",
+	["temp"] = "temperature",
+	["vccp1"] = "voltage",
+	["vccp2"] = "voltage",
+	["vdd"] = "voltage",
+	["vid1"] = "voltage",
+	["vid2"] = "voltage",
+	["vid3"] = "voltage",
+	["vid4"] = "voltage",
+	["vid5"] = "voltage",
+	["vid"] = "voltage",
+	["vin1"] = "voltage",
+	["vin2"] = "voltage",
+	["vin3"] = "voltage",
+	["vin4"] = "voltage",
+	["volt12"] = "voltage",
+	["volt5"] = "voltage",
+	["voltbatt"] = "voltage",
+	["vrm"] = "voltage"
+
+}
+
+
+m = Map("luci_statistics",
+	translate("Sensors Plugin Configuration"),
+	translate("The sensors plugin uses the Linux Sensors framework to gather environmental statistics."))
+
+s = m:section( NamedSection, "collectd_sensors", "luci_statistics" )
+
+
+o = s:option( Flag, "enable", translate("Enable this plugin") )
+o.default = 0
+
+
+o = s:option(Flag, "__all", translate("Monitor all sensors"))
+o:depends("enable", 1)
+o.default = 1
+o.write = function() end
+o.cfgvalue = function(self, sid)
+	local v = self.map:get(sid, "Sensor")
+	if v == nil or (type(v) == "table" and #v == 0) or (type(v) == "string" and #v == 0) then
+		return "1"
+	end
+end
+
+
+o = s:option(MultiValue, "Sensor", translate("Sensor list"), translate("Hold Ctrl to select multiple items or to deselect entries."))
+o:depends({enable = 1, __all = "" })
+o.widget = "select"
+o.rmempty = true
+o.size = 0
+
+local sensorcli = io.popen("/usr/sbin/sensors -u -A")
+if sensorcli then
+	local bus, sensor
+
+	while true do
+		local ln = sensorcli:read("*ln")
+		if not ln then
+			break
+		elseif ln:match("^[%w-]+$") then
+			bus = ln
+		elseif ln:match("^[%w-]+:$") then
+			sensor = ln:sub(0, -2):lower()
+			if bus and sensor_types[sensor] then
+				o:value("%s/%s-%s" %{ bus, sensor_types[sensor], sensor })
+				o.size = o.size + 1
+			end
+		elseif ln == "" then
+			bus = nil
+			sensor = nil
+		end
+	end
+
+	sensorcli:close()
+end
+
+
+o = s:option( Flag, "IgnoreSelected", translate("Monitor all except specified") )
+o.default = 0
+o.rmempty = true
+o:depends({ enable = 1, __all = "" })
+
+return m

applications/luci-app-statistics/luasrc/statistics/rrdtool/definitions/sensors.lua

@@ -0,0 +1,24 @@
+-- Copyright 2015 Jo-Philipp Wich <jow@openwrt.org>
+-- Licensed to the public under the Apache License 2.0.
+
+module("luci.statistics.rrdtool.definitions.sensors", package.seeall)
+
+function rrdargs( graph, plugin, plugin_instance )
+	return {
+		{
+			per_instance = true,
+			title = "%H: %pi - %di",
+			vlabel = "\176C",
+			number_format = "%4.1lf\176C",
+			data = {
+				types = { "temperature" },
+				options = {
+					temperature__value = {
+						color = "ff0000",
+						title = "Temperature"
+					}
+				}
+			}
+		}
+	}
+end

applications/luci-app-statistics/root/etc/config/luci_statistics

@@ -140,6 +140,9 @@ config statistics 'collectd_processes'
 	option enable '0'
 	option Processes 'uhttpd dnsmasq dropbear'
 
+config statistics 'collectd_sensors'
+	option enable '0'
+
 config statistics 'collectd_splash_leases'
 	option enable '0'
 

applications/luci-app-statistics/root/usr/bin/stat-genconfig

@@ -393,6 +393,12 @@ plugins = {
 		{ "RRATimespans" }
 	},
 
+	sensors = {
+		{ },
+		{ "IgnoreSelected" },
+		{ "Sensor" }
+	},
+
         splash_leases = {
           { },
           { },