finished work on private player skins support

.gitignore

@@ -1,2 +1,4 @@
 textures/character_*.png
+textures/player_*.png
 meta/character_*.txt
+meta/player_*.txt

meta/placeholder.txt

@@ -1 +0,0 @@
-Please run the update_from_db.py script to update the skins.

meta/readme.txt

@@ -0,0 +1,5 @@
+For each skin in textures folder a metadata file can be applied with "txt" suffilx. See character_1.txt for skin character_1.png for reference.
+The file contains:
+Skin name
+Author
+License

sfinv_page.lua

@@ -81,7 +81,7 @@ sfinv.register_page("skins:overview", {
 	title = "Skins",
 	get = function(self, player, context)
 		-- collect skins data
-		context.skins_list = skins.get_skinlist()
+		context.skins_list = skins.get_skinlist("player:"..player:get_player_name(), true)
 		context.total_pages = 1
 		for i, skin in ipairs(context.skins_list ) do
 			local page = math.floor((i-1) / 16)+1

skinlist.lua

@@ -3,42 +3,65 @@ local skins_dir_list = minetest.get_dir_list(skins.modpath.."/textures")
 local unsorted_skinslist = {}
 local sorted_skinslist
 for _, fn in pairs(skins_dir_list) do
-	if fn:find("^character_") then
-		nameparts = string.gsub(fn, "[.]", "_"):split("_")
-		local id = nameparts[2]
-		local name = "character_"..id
+	local nameparts = string.gsub(fn, "[.]", "_"):split("_")
+
+	local name, sort_id, assignment, is_preview
+	if nameparts[1] == "character" then
+		sort_id = tonumber(nameparts[2])+5000
+		name = "character_"..nameparts[2]
+		is_preview = (nameparts[3] == "preview")
+	elseif nameparts[1] == "player" then
+		assignment = "player:"..nameparts[2]
+		name = "player_"..nameparts[2]
+		if tonumber(nameparts[3]) then
+			sort_id = tonumber(nameparts[3])
+			is_preview = (nameparts[4] == "preview")
+			name = name.."_"..nameparts[3]
+		else
+			sort_id = 1
+			is_preview = (nameparts[3] == "preview")
+		end
+	end
+
+	if name then
 		local skin_obj = skins.get(name) or skins.new(name)
-		if nameparts[3] == "preview" then
+		if is_preview then
 			skin_obj:set_preview(fn)
 		else
+			skin_obj:set_texture(fn)
+			skin_obj:set_meta("_sort_id", sort_id)
+			if assignment then
+				skin_obj:set_meta("assignment", assignment)
+			end
 			local file = io.open(skins.modpath.."/meta/"..name..".txt", "r")
 			if file then
 				local data = string.split(file:read("*all"), "\n", 3)
 				file:close()
-				skin_obj:set_texture(fn)
-				skin_obj:set_meta("_sort_id", tonumber(id))
 				skin_obj:set_meta("name", data[1])
 				skin_obj:set_meta("author", data[2])
 				skin_obj:set_meta("license", data[3])
+			else
+				skin_obj:set_meta("name", name)
 			end
 			table.insert(unsorted_skinslist, skin_obj)
 		end
 	end
 end
 
--- get skinlist. listname not full implemented at the time: could be "mod:wardrobe" or "player:bell07" in feature
-function skins.get_skinlist(listname)
+-- get skinlist. If assignment given ("mod:wardrobe" or "player:bell07") select skins matches the assignment. select_unassigned selects the skins without any assignment too
+function skins.get_skinlist(assignment, select_unassigned)
 	-- sort on demand
 	if not sorted_skinslist then
 		table.sort(unsorted_skinslist, function(a,b) return a:get_meta("_sort_id") < b:get_meta("_sort_id") end)
 		sorted_skinslist = unsorted_skinslist
 	end
-	if not listname then
+	if not assignment then
 		return sorted_skinslist
 	else
 		local ret = {}
 		for _, skin in ipairs(sorted_skinslist) do
-			if skin:get_meta(listname) then
+			if assignment == skin:get_meta("assignment") or
+					(select_unassigned and skin:get_meta("assignment") == nil) then
 				table.insert(ret, skin)
 			end
 		end

textures/readme.txt

@@ -0,0 +1,4 @@
+In this folder the skin files could be placed according the next file naming convention
+character_[number].png - Public skin, available for all users
+player_[nick].png or player_[nick]_[number].png - one or multiple private skins for player "nick"
+*_preview.png - Preview files for public and private skins