From 240b0bb53ec6286c5cdce7d8ca10af514a00bb0f Mon Sep 17 00:00:00 2001
From: Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
Date: Sat, 27 May 2017 15:32:28 +0100
Subject: configmanager: Remove support for multiple parsers, fixes #852.

---
 core/configmanager.lua | 27 ++++++---------------------
 prosody                |  4 +---
 prosodyctl             |  4 +---
 3 files changed, 8 insertions(+), 27 deletions(-)

diff --git a/core/configmanager.lua b/core/configmanager.lua
index 5a544375..3f7bfca0 100644
--- a/core/configmanager.lua
+++ b/core/configmanager.lua
@@ -27,7 +27,7 @@ local _ENV = nil;
 
 _M.resolve_relative_path = resolve_relative_path; -- COMPAT
 
-local parsers = {};
+local parser = nil;
 
 local config_mt = { __index = function (t, _) return rawget(t, "*"); end};
 local config = setmetatable({ ["*"] = { } }, config_mt);
@@ -77,11 +77,11 @@ end
 function _M.load(filename, config_format)
 	config_format = config_format or filename:match("%w+$");
 
-	if parsers[config_format] and parsers[config_format].load then
+	if config_format == "lua" then
 		local f, err = io.open(filename);
 		if f then
 			local new_config = setmetatable({ ["*"] = { } }, config_mt);
-			local ok, err = parsers[config_format].load(f:read("*a"), filename, new_config);
+			local ok, err = parser.load(f:read("*a"), filename, new_config);
 			f:close();
 			if ok then
 				config = new_config;
@@ -103,26 +103,11 @@ function _M.load(filename, config_format)
 	end
 end
 
-function _M.addparser(config_format, parser)
-	if config_format and parser then
-		parsers[config_format] = parser;
-	end
-end
-
--- _M needed to avoid name clash with local 'parsers'
-function _M.parsers()
-	local p = {};
-	for config_format in pairs(parsers) do
-		table.insert(p, config_format);
-	end
-	return p;
-end
-
 -- Built-in Lua parser
 do
 	local pcall = _G.pcall;
-	parsers.lua = {};
-	function parsers.lua.load(data, config_file, config_table)
+	parser = {};
+	function parser.load(data, config_file, config_table)
 		local env;
 		-- The ' = true' are needed so as not to set off __newindex when we assign the functions below
 		env = setmetatable({
@@ -211,7 +196,7 @@ do
 			file = resolve_relative_path(config_file:gsub("[^"..path_sep.."]+$", ""), file);
 			local f, err = io.open(file);
 			if f then
-				local ret, err = parsers.lua.load(f:read("*a"), file, config_table);
+				local ret, err = parser.load(f:read("*a"), file, config_table);
 				if not ret then error(err:gsub("%[string.-%]", file), 0); end
 			end
 			if not f then error("Error loading included "..file..": "..err, 0); end
diff --git a/prosody b/prosody
index 7a0d3552..7f6b1c2d 100755
--- a/prosody
+++ b/prosody
@@ -76,9 +76,7 @@ function read_config()
 	elseif os.getenv("PROSODY_CONFIG") then -- Passed by prosodyctl
 			table.insert(filenames, os.getenv("PROSODY_CONFIG"));
 	else
-		for _, format in ipairs(config.parsers()) do
-			table.insert(filenames, (CFG_CONFIGDIR or ".").."/prosody.cfg."..format);
-		end
+		table.insert(filenames, (CFG_CONFIGDIR or ".").."/prosody.cfg.lua");
 	end
 	for _,_filename in ipairs(filenames) do
 		filename = _filename;
diff --git a/prosodyctl b/prosodyctl
index 1d4296bf..e1f3e321 100755
--- a/prosodyctl
+++ b/prosodyctl
@@ -74,9 +74,7 @@ do
 		end
 		table.remove(arg, 1); table.remove(arg, 1);
 	else
-		for _, format in ipairs(config.parsers()) do
-			table.insert(filenames, (CFG_CONFIGDIR or ".").."/prosody.cfg."..format);
-		end
+		table.insert(filenames, (CFG_CONFIGDIR or ".").."/prosody.cfg.lua");
 	end
 	for _,_filename in ipairs(filenames) do
 		filename = _filename;
-- 
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