Mercurial > prosody-modules
annotate mod_debug_traceback/mod_debug_traceback.lua @ 4936:a85efae90e21
mod_rest: Expand mapping of XEP-0045 join stanza
The previous 'join' mapping was apparently lost in translation when
swithing to datamapper, so might as well map some properties allowing
history control. Usually you probably want either zero history or
history since the last known time of being joined. Maybe that the former
should be the default?
author | Kim Alvefur <zash@zash.se> |
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date | Sat, 30 Apr 2022 01:00:01 +0200 |
parents | 02292b892fce |
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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 |