File

tools/tb2err @ 13186:affaf6d08d26

util.datamanager: Pad list writes to avoid crossing block boundaries By padding items so that they do not cross block boundaries, it becomes eaiser to delete whole blocks with fallocate() without cutting items in half, improving efficiency of such operations. Since list stores are used for message archives, where the most common deletion operation would be of the oldest entires, at the top of the file. With this, all blocks that contain items to be removed could be deleted without needing to read, delete and write out the whole file.
author Kim Alvefur <zash@zash.se>
date Wed, 07 Jun 2023 00:39:30 +0200
parent 13066:4aa4a51a7a77
line wrap: on
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#!/usr/bin/env lua
-- traceback to errors.err for vim -q
-- e.g. curl https://prosody.im/paste/xxx | tb2err > errors.err && vim -q

local path_sep = package.config:sub(1,1);
for line in io.lines() do
	local src, err = line:match("%s*(%S+)(:%d+: .*)")
	if src then
		src = src:gsub("\\", path_sep);
		local cut = src:match("/()core/")
			or src:match("/()net/")
			or src:match("/()util/")
			or src:match("/()modules/")
			or src:match("/()prosody%-modules/")
			or src:match("/()plugins/")
			or src:match("/()prosody[ctl]*$")
		if cut then
			src = src:sub(cut);
		end
		src = src:gsub("prosody%-modules/", "../modules/")
		src = src:gsub("^modules/", "plugins/")
		io.write(src, err, "\n");
	end
end