luci-app-freifunk-widgets: switch to nixio.fs

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

applications/luci-app-freifunk-widgets/luasrc/model/cbi/freifunk/widgets/widgets_overview.lua

@@ -11,7 +11,7 @@ You may obtain a copy of the License at
 ]]--
 
 local uci = require "luci.model.uci".cursor()
-local fs = require "luci.fs"
+local fs = require "nixio.fs"
 local utl = require "luci.util"
 m = Map("freifunk-widgets", translate("Widgets"),
         translate("Configure installed widgets."))
@@ -37,9 +37,10 @@ function en.cfgvalue(self, section)
 end
 
 local tmpl = wdg:option(ListValue, "template", translate("Template"))
-for k, v in ipairs(fs.dir('/usr/lib/lua/luci/view/freifunk/widgets/')) do
-	if v ~= "." and v ~= ".." then
-		tmpl:value(v)
+local file
+for file in fs.dir("/usr/lib/lua/luci/view/freifunk/widgets/") do
+	if file ~= "." and file ~= ".." then
+		tmpl:value(file)
 	end
 end
 
@@ -64,10 +65,11 @@ function m.on_commit(self)
 			table.insert(active, s[".name"])
 		end
 	end )
-	for k, v in ipairs(fs.dir(dir)) do
-		filename = string.gsub(v, ".html", "")
+	local file
+	for file in fs.dir(dir) do
+		local filename = string.gsub(file, ".html", "")
 		if not utl.contains(active, filename) then
-			fs.unlink(dir .. v)
+			fs.unlink(dir .. file)
 		end
 	end
 end

applications/luci-app-freifunk-widgets/luasrc/view/freifunk/widgets/html/main.htm

@@ -13,7 +13,7 @@ You may obtain a copy of the License at
 ]]--
 
 --local utl = require "luci.util"
-local fs = require "luci.fs"
+local fs = require "nixio.fs"
 local title = data.title
 local name = data['.name']
 local file = "/usr/share/customtext/" .. name .. ".html"

applications/luci-app-freifunk-widgets/luasrc/view/freifunk/widgets/rssfeed/main.htm

@@ -14,7 +14,7 @@ You may obtain a copy of the License at
 
 local sys = require "luci.sys"
 local utl = require "luci.util"
-local fs = require "luci.fs"
+local fs = require "nixio.fs"
 local i18n = require "luci.i18n"
 local url = data.url
 local title = data.title or i18n.translate("RSS")
@@ -37,7 +37,7 @@ cachefile = "/tmp/" .. name .. ".cache"
 	<% if not url then %>
 		<%:No url found in config%>
 	<% else
-		local mtime = luci.fs.mtime(cachefile) or 0
+		local mtime = fs.stat(cachefile, "mtime") or 0
 		local now = os.time()
 		expire = mtime + cachetime