misc/shared-mime-info: fix cleanup

update-mime-database generates tons of xml files during the trigger
execution, cleanup should remove them

Reported by:	many

misc/shared-mime-info/Makefile

@@ -2,7 +2,7 @@
 
 PORTNAME=	shared-mime-info
 DISTVERSION=	2.0
-PORTREVISION=	1
+PORTREVISION=	2
 CATEGORIES=	misc gnome
 
 MAINTAINER=	desktop@FreeBSD.org

misc/shared-mime-info/files/shared-mime-info.ucl.in

@@ -4,7 +4,7 @@ cleanup: {
 	script: <<EOS
 local mimedir = "%%PREFIX%%/share/mime/"
 local files = { "XMLnamespaces", "aliases", "generic-icons", "globs", "globs2", "icons", "mime.cache", "subclasses", "treemagic", "types", "version"}
-for _,filename in pairs(files) do
+for _,filename in ipairs(files) do
 	local fpath = mimedir .. filename
 	local st = pkg.stat(fpath)
 	if st then
@@ -12,9 +12,24 @@ for _,filename in pairs(files) do
 	end
 end
 local res = pkg.readdir(mimedir)
-if #res == 0 then
-	os.remove(mimedir)
+if res == nil then goto cleanmime end
+
+for _,dir in ipairs(res) do
+	if  dir == "packages" then goto continue end
+
+	local directory = mimedir .. "/" .. dir
+	local r = pkg.readdir(directory)
+	if r == nil then goto cleandir end
+	for _,file in ipairs(r) do
+		os.remove(directory .. "/" .. file)
+	end
+	::cleandir::
+	os.remove(directory)
+
+	::continue::
 end
+::cleanmime::
+os.remove(mimedir)
 EOS
 }
 trigger: {