luci-app-statisctis: only include lua modules in rrd statistics into local scope

Signed-off-by: Florian Eckert <fe@dev.tdt.de>

3 files changed, 19 insertions, 22 deletions

diff --git a/applications/luci-app-statistics/luasrc/statistics/i18n.lua b/applications/luci-app-statistics/luasrc/statistics/i18n.lua
index 7877e61ab3..6b01958cbe 100644
--- a/applications/luci-app-statistics/luasrc/statistics/i18n.lua
+++ b/applications/luci-app-statistics/luasrc/statistics/i18n.lua
@@ -3,15 +3,14 @@
 
 module("luci.statistics.i18n", package.seeall)
 
-require("luci.util")
-require("luci.i18n")
+local util = require("luci.util")
+local i18n = require("luci.i18n")
 
 
-Instance = luci.util.class()
-
+Instance = util.class()
 
 function Instance.__init__( self, graph )
-	self.i18n  = luci.i18n
+	self.i18n  = i18n
 	self.graph = graph
 end
 
diff --git a/applications/luci-app-statistics/luasrc/statistics/rrdtool.lua b/applications/luci-app-statistics/luasrc/statistics/rrdtool.lua
index f543e67599..b9f48a45bd 100644
--- a/applications/luci-app-statistics/luasrc/statistics/rrdtool.lua
+++ b/applications/luci-app-statistics/luasrc/statistics/rrdtool.lua
@@ -3,30 +3,28 @@
 
 module("luci.statistics.rrdtool", package.seeall)
 
-require("luci.statistics.datatree")
-require("luci.statistics.rrdtool.colors")
-require("luci.statistics.i18n")
-require("luci.model.uci")
-require("luci.util")
-require("luci.sys")
+local tree   = require("luci.statistics.datatree")
+local colors = require("luci.statistics.rrdtool.colors")
+local i18n   = require("luci.statistics.i18n")
+local uci    = require("luci.model.uci").cursor()
+local util   = require("luci.util")
+local sys    = require("luci.sys")
+local fs     = require("nixio.fs")
 
-local fs = require "nixio.fs"
 
-
-Graph = luci.util.class()
+Graph = util.class()
 
 function Graph.__init__( self, timespan, opts )
 
 	opts = opts or { }
 
-	local uci = luci.model.uci.cursor()
 	local sections = uci:get_all( "luci_statistics" )
 
 	-- options
 	opts.timespan  = timespan       or sections.rrdtool.default_timespan or 900
 	opts.rrasingle = opts.rrasingle or ( sections.collectd_rrdtool.RRASingle == "1" )
 	opts.rramax    = opts.rramax    or ( sections.collectd_rrdtool.RRAMax == "1" )
-	opts.host      = opts.host      or sections.collectd.Hostname        or luci.sys.hostname()
+	opts.host      = opts.host      or sections.collectd.Hostname        or sys.hostname()
 	opts.width     = opts.width     or sections.rrdtool.image_width      or 400
 	opts.rrdpath   = opts.rrdpath   or sections.collectd_rrdtool.DataDir or "/tmp/rrd"
 	opts.imgpath   = opts.imgpath   or sections.rrdtool.image_path       or "/tmp/rrdimg"
@@ -34,9 +32,9 @@ function Graph.__init__( self, timespan, opts )
 	opts.imgpath   = opts.imgpath:gsub("/$","")
 
 	-- helper classes
-	self.colors = luci.statistics.rrdtool.colors.Instance()
-	self.tree   = luci.statistics.datatree.Instance(opts.host)
-	self.i18n   = luci.statistics.i18n.Instance( self )
+	self.colors = colors.Instance()
+	self.tree   = tree.Instance(opts.host)
+	self.i18n   = i18n.Instance( self )
 
 	-- rrdtool default args
 	self.args = {
@@ -102,7 +100,7 @@ function Graph._rrdtool( self, def, rrd )
 			opt = opt:gsub( "{file}", rrd )
 		end
 
-		cmdline[#cmdline+1] = luci.util.shellquote(opt)
+		cmdline[#cmdline+1] = util.shellquote(opt)
 	end
 
 	-- execute rrdtool
diff --git a/applications/luci-app-statistics/luasrc/statistics/rrdtool/colors.lua b/applications/luci-app-statistics/luasrc/statistics/rrdtool/colors.lua
index 5b35dff67c..0d3af712fd 100644
--- a/applications/luci-app-statistics/luasrc/statistics/rrdtool/colors.lua
+++ b/applications/luci-app-statistics/luasrc/statistics/rrdtool/colors.lua
@@ -3,10 +3,10 @@
 
 module("luci.statistics.rrdtool.colors", package.seeall)
 
-require("luci.util")
+local util = require("luci.util")
 
 
-Instance = luci.util.class()
+Instance = util.class()
 
 function Instance.from_string( self, s )
 	return {