view loader.lua @ 13920:2169be3581ae 13.0

migrator: Allow migrating between different configs of the same driver This was notably a problem with SQL since mod_storage_sql is a single module that connects to different SQL databases. The problem was that since it was already loaded once, the output configuration was not applied and it would have migrated to the origin database. This essentially reloads the module after updating the configuration, which should work with all storage modules as long as everything they need are kept in the 'provider' or driver table.
author Kim Alvefur <zash@zash.se>
date Sun, 03 Aug 2025 15:14:20 +0200
parents 2f61ebcf37c0
children ef586363d90f
line wrap: on
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-- Allow for both require"util.foo" and require"prosody.util.foo" for a
-- transition period while we update all require calls.

if (...) == "prosody.loader" then
	if not package.path:find "prosody" then
		-- For require"util.foo" also look in paths equivalent to "prosody.util.foo"
		package.path = package.path:gsub("([^;]*)(?[^;]*)", "%1prosody/%2;%1%2");
		package.cpath = package.cpath:gsub("([^;]*)(?[^;]*)", "%1prosody/%2;%1%2");
	end
else
	-- When requiring "prosody.x", also look for "x"
	for i = #package.searchers, 1, -1 do
		local search = package.searchers[i];
		table.insert(package.searchers, i, function(module_name)
			local lib = module_name:match("^prosody%.(.*)$");
			if lib then
				return search(lib);
			end
		end)
	end
end

-- Look for already loaded module with or without prefix
setmetatable(package.loaded, {
	__index = function(loaded, module_name)
		local suffix = module_name:match("^prosody%.(.*)$");
		if suffix then
			return rawget(loaded, suffix);
		end
		local prefixed = rawget(loaded, "prosody." .. module_name);
		if prefixed ~= nil then
			return prefixed;
		end
	end;
})