diff options
Diffstat (limited to 'luaotfload-override.lua')
-rw-r--r-- | luaotfload-override.lua | 77 |
1 files changed, 70 insertions, 7 deletions
diff --git a/luaotfload-override.lua b/luaotfload-override.lua index 225ac68..39cc172 100644 --- a/luaotfload-override.lua +++ b/luaotfload-override.lua @@ -15,17 +15,23 @@ because we lack a user interface to toggle per-subsystem tracing. local module_name = "luaotfload" +local ioopen = io.open +local iowrite = io.write +local lfsisdir = lfs.isdir +local lfsisfile = lfs.isfile +local md5sumhexa = md5.sumhexa +local osdate = os.date +local ostime = os.time local select = select local stringformat = string.format +local stringsub = string.sub local tableconcat = table.concat +local texio_write_nl = texio.write_nl local texiowrite_nl = texio.write_nl +local texio_write = texio.write local texiowrite = texio.write local type = type -local texio_write_nl = texio.write_nl -local texio_write = texio.write -local iowrite = io.write - --[[doc-- We recreate the verbosity levels previously implemented in font-nms: @@ -62,9 +68,67 @@ logs.getloglevel = get_loglevel logs.get_loglevel = get_loglevel logs.get_log_level = get_loglevel -local set_logout = function (s) +local writeln --- scope so we can change it + +local log_msg = [[ +logging output redirected to %s +to monitor the progress run "tail -f %s" in another terminal +]] + +local tmppath = os.getenv "TMPDIR" or "/tmp" + +local choose_logfile = function ( ) + if lfsisdir (tmppath) then + local fname + repeat --- ensure that file of that name doesn’t exist + fname = tmppath .. "/luaotfload-log-" + .. stringsub (md5sumhexa (ostime ()), 1, 8) + until not lfsisfile (fname) + iowrite (stringformat (log_msg, fname, fname)) + return ioopen (fname, "w") + end + --- missing /tmp + return false +end + +local set_logout = function (s, finalizers) if s == "stdout" then logout = "term" + elseif s == "file" then --- inject custom logger + local chan = choose_logfile () + chan:write (stringformat ("logging initiated at %s", + osdate ("%F %T", ostime ()))) + local writefile = function (...) + if select ("#", ...) == 2 then + chan:write (select (2, ...)) + else + chan:write (select (1, ...)) + end + end + local writefile_nl= function (...) + chan:write "\n" + if select ("#", ...) == 2 then + chan:write (select (2, ...)) + else + chan:write (select (1, ...)) + end + end + + local writeln_orig = writeln + + texiowrite = writefile + texiowrite_nl = writefile_nl + writeln = writefile_nl + + finalizers[#finalizers+1] = function () + chan:write (stringformat ("\nlogging finished at %s\n", + osdate ("%F %T", ostime ()))) + chan:close () + texiowrite = texio.write + texiowrite_nl = texio.write_nl + writeln = writeln_orig + end + return finalizers --else --- remains “log” end end @@ -92,7 +156,6 @@ end io.stdout:setvbuf "no" io.stderr:setvbuf "no" -local writeln if tex and (tex.jobname or tex.formatname) then --- TeX writeln = texiowrite_nl @@ -155,7 +218,7 @@ local names_report = function (mode, lvl, ...) if loglevel >= lvl then if mode == "log" then log (...) - elseif mode == "both" then + elseif mode == "both" and log ~= "stdout" then log (...) stdout (...) else |