File

util/mercurial.lua @ 11736:ddb87df3de30

mod_admin_shell: Keep unrestricted environment for session lifetime Makes it so that global values set in the environment are kept longer than within one line, and thus can be used until the session ends. They still don't pollute the global environment, which is an error anyway. Thanks phryk for noticing.
author Kim Alvefur <zash@zash.se>
date Wed, 11 Aug 2021 14:55:59 +0200 (2021-08-11)
parent 10533:a6cc5b844d7b
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local lfs = require"lfs";

local hg = { };

function hg.check_id(path)
	if lfs.attributes(path, 'mode') ~= "directory" then
		return nil, "not a directory";
	end
	local hg_dirstate = io.open(path.."/.hg/dirstate");
	local hgid, hgrepo
	if hg_dirstate then
		hgid = ("%02x%02x%02x%02x%02x%02x"):format(hg_dirstate:read(6):byte(1, 6));
		hg_dirstate:close();
		local hg_changelog = io.open(path.."/.hg/store/00changelog.i");
		if hg_changelog then
			hg_changelog:seek("set", 0x20);
			hgrepo = ("%02x%02x%02x%02x%02x%02x"):format(hg_changelog:read(6):byte(1, 6));
			hg_changelog:close();
		end
	else
		local hg_archival,e = io.open(path.."/.hg_archival.txt"); -- luacheck: ignore 211/e
		if hg_archival then
			local repo = hg_archival:read("*l");
			local node = hg_archival:read("*l");
			hg_archival:close()
			hgid = node and node:match("^node: (%x%x%x%x%x%x%x%x%x%x%x%x)")
			hgrepo = repo and repo:match("^repo: (%x%x%x%x%x%x%x%x%x%x%x%x)")
		end
	end
	return hgid, hgrepo;
end

return hg;