-- $Id$
-- Public domain. Originally written by Michal Hoftich, 2020.
-- this script parses log files for errors
-- pass the .log file as a first argument
--
-- Usage:
-- texlua checklog.lua <filename>.log
kpse.set_program_name "luatex"
-- the following library is part of make4ht
local error_logparser = require("make4ht-errorlogparser")
local function parse_log(input_file, content)
-- log parsing can be expensive on time, don't do it if we don't have
-- any error message in the log file
if content:match("\n!") then
local errors = error_logparser.parse(content)
if #errors > 0 then
print(input_file .. ": errors found:")
for _, err in ipairs(errors) do
print((err.filename or "?") .. ":"
.. (err.line or "?") .. ":" .. err.error)
end
os.exit(1)
end
end
end
local content
-- the log file can be passed as filename argument, or piped from shell
if #arg > 0 then
for _, input_file in ipairs(arg) do
local ext = input_file:match("%.([^%.]+)$")
if not ext then
input_file = input_file .. ".log"
elseif ext ~="log" then
input_file = input_file:gsub("[^%.]+$", "log")
end
local f = io.open(input_file, "r")
content = f:read("*all")
f:close()
parse_log(input_file, content)
end
else
-- read from STDIN
content = io.read("*all")
parse_log(content)
end
