prosody
8f3db0bd2bb4
util/logger.lua

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util/logger.lua @ 632:8f3db0bd2bb4

Merge from waqas
author Matthew Wild <mwild1@gmail.com>
date Mon, 22 Dec 2008 13:29:59 +0000
parent 615:4ae3e81513f3
child 716:d61eabc678a6
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4ae3e81513f3 0.1 -> 0.2
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1 -- Prosody IM v0.2
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2 -- Copyright (C) 2008 Matthew Wild
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3 -- Copyright (C) 2008 Waqas Hussain
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4 --
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5 -- This program is free software; you can redistribute it and/or
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6 -- modify it under the terms of the GNU General Public License
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7 -- as published by the Free Software Foundation; either version 2
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8 -- of the License, or (at your option) any later version.
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9 --
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10 -- This program is distributed in the hope that it will be useful,
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11 -- but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 -- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 -- GNU General Public License for more details.
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14 --
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15 -- You should have received a copy of the GNU General Public License
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16 -- along with this program; if not, write to the Free Software
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17 -- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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18 --
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19
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20 local format, rep = string.format, string.rep;
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21 local io_write = io.write;
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22 local pcall = pcall;
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23 local debug = debug;
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24 local tostring = tostring;
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25 local math_max = math.max;
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26
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27 local getstyle, getstring = require "util.termcolours".getstyle, require "util.termcolours".getstring;
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28 local do_pretty_printing = not os.getenv("WINDIR");
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29
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30 module "logger"
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31
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32 local logstyles = {};
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33
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34 --TODO: This should be done in config, but we don't have proper config yet
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35 if do_pretty_printing then
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36 logstyles["info"] = getstyle("bold");
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37 logstyles["warn"] = getstyle("bold", "yellow");
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38 logstyles["error"] = getstyle("bold", "red");
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39 end
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40
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41 local sourcewidth = 20;
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42
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43 local outfunction = nil;
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44
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45 function init(name)
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46 --name = nil; -- While this line is not commented, will automatically fill in file/line number info
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47 sourcewidth = math_max(#name+2, sourcewidth);
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48 local namelen = #name;
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49 return function (level, message, ...)
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50 if not name then
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51 local inf = debug.getinfo(3, 'Snl');
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52 level = level .. ","..tostring(inf.short_src):match("[^/]*$")..":"..inf.currentline;
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53 end
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54
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55 if outfunction then return outfunction(name, level, message, ...); end
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57 if ... then
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58 io_write(name, rep(" ", sourcewidth-namelen), getstring(logstyles[level], level), "\t", format(message, ...), "\n");
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59 else
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60 io_write(name, rep(" ", sourcewidth-namelen), getstring(logstyles[level], level), "\t", message, "\n");
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61 end
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62 end
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63 end
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64
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65 function setwriter(f)
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66 if not f then outfunction = nil; return true, nil; end
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67 local ok, ret = pcall(f, "logger", "info", "Switched logging output successfully");
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68 if ok then
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69 outfunction = f;
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70 end
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71 return ok, ret;
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72 end
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73
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74 return _M;