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annotate mod_debug_traceback/mod_debug_traceback.lua @ 4565:3b2ae854842c

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mod_muc_bot: Save occupant to room This has some side-effects: Firstly, the bot shows up in occupant list, which is nice. Secondly, the bot starts receiving messages from the room which might be wanted, but it would be better to join the room for real in this case.
author Kim Alvefur <zash@zash.se>
date Sat, 10 Apr 2021 19:23:25 +0200
parents 02292b892fce
children
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5841d54cb6c6 mod_debug_traceback: Descendent of mod_traceback with some additional features
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1 module:set_global();
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2
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3 local traceback = require "util.debug".traceback;
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4 local pposix = require "util.pposix";
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5 local os_date = os.date;
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6 local render_filename = require "util.interpolation".new("%b{}", function (s) return s; end, {
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7 yyyymmdd = function (t)
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8 return os_date("%Y%m%d", t);
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9 end;
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10 hhmmss = function (t)
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11 return os_date("%H%M%S", t);
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12 end;
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13 });
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14
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15 local count = 0;
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16
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17 local function get_filename(filename_template)
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18 filename_template = filename_template;
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19 return render_filename(filename_template, {
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20 paths = prosody.paths;
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21 pid = pposix.getpid();
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22 count = count;
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23 time = os.time();
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24 });
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25 end
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26
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27 local default_filename_template = "{paths.data}/traceback-{pid}-{count}.log";
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28 local filename_template = module:get_option_string("debug_traceback_filename", default_filename_template);
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29 local signal_name = module:get_option_string("debug_traceback_signal", "SIGUSR1");
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30
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31 function dump_traceback()
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32 module:log("info", "Received %s, writing traceback", signal_name);
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33
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34 local tb = traceback();
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35 module:fire_event("debug_traceback/triggered", { traceback = tb });
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36
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37 local f, err = io.open(get_filename(filename_template), "a+");
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38 if not f then
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39 module:log("error", "Unable to write traceback: %s", err);
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40 return;
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41 end
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42 f:write("-- Traceback generated at ", os.date("%b %d %H:%M:%S"), " --\n");
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43 f:write(tb, "\n");
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44 f:write("-- End of traceback --\n");
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45 f:close();
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46 count = count + 1;
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47 end
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48
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49 local mod_posix = module:depends("posix");
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50 if rawget(mod_posix, "features") and mod_posix.features.signal_events then
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51 module:hook("signal/"..signal_name, dump_traceback);
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52 else
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53 require"util.signal".signal(signal_name, dump_traceback);
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54 end