util.pposix: Replace the unwieldy module table generation with luaL_register() call...

[prosody.git] / core / loggingmanager.lua

diff --git a/core/loggingmanager.lua b/core/loggingmanager.lua
index 298e4c45f849c84bb5efc6aea67b72bd532217fe..4154e1a7b3131656091ae2e6376c553fde185a4b 100644 (file)
--- a/core/loggingmanager.lua
+++ b/core/loggingmanager.lua
@@ -1,3 +1,11 @@
+-- Prosody IM
+-- Copyright (C) 2008-2009 Matthew Wild
+-- Copyright (C) 2008-2009 Waqas Hussain
+-- 
+-- This project is MIT/X11 licensed. Please see the
+-- COPYING file in the source package for more information.
+--
+
 
 local format, rep = string.format, string.rep;
 local pcall = pcall;
@@ -6,12 +14,19 @@ local tostring, setmetatable, rawset, pairs, ipairs, type =
        tostring, setmetatable, rawset, pairs, ipairs, type;
 local io_open, io_write = io.open, io.write;
 local math_max, rep = math.max, string.rep;
-local os_getenv = os.getenv;
+local os_date, os_getenv = os.date, os.getenv;
 local getstyle, getstring = require "util.termcolours".getstyle, require "util.termcolours".getstring;
 
-local config = require "core.configmanager";
+if os.getenv("__FLUSH_LOG") then
+       local io_flush = io.flush;
+       local _io_write = io_write;
+       io_write = function(...) _io_write(...); io_flush(); end
+end
 
+local config = require "core.configmanager";
+local eventmanager = require "core.eventmanager";
 local logger = require "util.logger";
+local debug_mode = config.get("*", "core", "debug");
 
 _G.log = logger.init("general");
 
@@ -19,7 +34,8 @@ module "loggingmanager"
 
 -- The log config used if none specified in the config file
 local default_logging = { { to = "console" } };
-
+local default_file_logging = { { to = "file", levels = { min = (debug_mode and "debug") or "info" }, timestamps = true } };
+local default_timestamp = "%b %d %T";
 -- The actual config loggingmanager is using
 local logging_config = config.get("*", "core", "log") or default_logging;
 
@@ -28,6 +44,8 @@ local log_sink_types = setmetatable({}, { __newindex = function (t, k, v) rawset
 local get_levels;
 local logging_levels = { "debug", "info", "warn", "error", "critical" }
 
+-- Put a rule into action. Requires that the sink type has already been registered.
+-- This function is called automatically when a new sink type is added [see apply_sink_rules()]
 local function add_rule(sink_config)
        local sink_maker = log_sink_types[sink_config.to];
        if sink_maker then
@@ -65,8 +83,9 @@ local function add_rule(sink_config)
        end
 end
 
--- Search for all rules using a particular sink type,
--- and apply them
+-- Search for all rules using a particular sink type, and apply
+-- them. Called automatically when a new sink type is added to
+-- the log_sink_types table.
 function apply_sink_rules(sink_type)
        if type(logging_config) == "table" then
                for _, sink_config in pairs(logging_config) do
@@ -74,9 +93,17 @@ function apply_sink_rules(sink_type)
                                add_rule(sink_config);
                        end
                end
-       elseif type(logging_config) == "string" and sink_type == "file" then
+       elseif type(logging_config) == "string" and (not logging_config:match("^%*")) and sink_type == "file" then
                -- User specified simply a filename, and the "file" sink type 
                -- was just added
+               for _, sink_config in pairs(default_file_logging) do
+                       sink_config.filename = logging_config;
+                       add_rule(sink_config);
+                       sink_config.filename = nil;
+               end
+       elseif type(logging_config) == "string" and logging_config:match("^%*(.+)") == sink_type then
+               -- Log all levels (debug+) to this sink
+               add_rule({ levels = { min = "debug" }, to = sink_type });
        end
 end
 
@@ -113,6 +140,7 @@ end
 
 --- Definition of built-in logging sinks ---
 
+-- Null sink, must enter log_sink_types *first*
 function log_sink_types.nowhere()
        return function () return false; end;
 end
@@ -121,9 +149,18 @@ end
 local sourcewidth = 20;
 
 function log_sink_types.stdout()
+       local timestamps = config.timestamps;
+       
+       if timestamps == true then
+               timestamps = default_timestamp; -- Default format
+       end
+       
        return function (name, level, message, ...)
                sourcewidth = math_max(#name+2, sourcewidth);
                local namelen = #name;
+               if timestamps then
+                       io_write(os_date(timestamps), " ");
+               end
                if ... then 
                        io_write(name, rep(" ", sourcewidth-namelen), level, "\t", format(message, ...), "\n");
                else
@@ -147,9 +184,19 @@ do
                        return log_sink_types.stdout(config);
                end
                
+               local timestamps = config.timestamps;
+
+               if timestamps == true then
+                       timestamps = default_timestamp; -- Default format
+               end
+
                return function (name, level, message, ...)
                        sourcewidth = math_max(#name+2, sourcewidth);
                        local namelen = #name;
+                       
+                       if timestamps then
+                               io_write(os_date(timestamps), " ");
+                       end
                        if ... then 
                                io_write(name, rep(" ", sourcewidth-namelen), getstring(logstyles[level], level), "\t", format(message, ...), "\n");
                        else
@@ -159,15 +206,37 @@ do
        end
 end
 
+local empty_function = function () end;
 function log_sink_types.file(config)
        local log = config.filename;
        local logfile = io_open(log, "a+");
        if not logfile then
-               return function () end
+               return empty_function;
+       end
+       local write, flush = logfile.write, logfile.flush;
+
+       eventmanager.add_event_hook("reopen-log-files", function ()
+                       if logfile then
+                               logfile:close();
+                       end
+                       logfile = io_open(log, "a+");
+                       if not logfile then
+                               write, flush = empty_function, empty_function;
+                       else
+                               write, flush = logfile.write, logfile.flush;
+                       end
+               end);
+
+       local timestamps = config.timestamps;
+
+       if timestamps == nil or timestamps == true then
+               timestamps = default_timestamp; -- Default format
        end
 
-       local write, format, flush = logfile.write, format, logfile.flush;
        return function (name, level, message, ...)
+               if timestamps then
+                       write(logfile, os_date(timestamps), " ");
+               end
                if ... then 
                        write(logfile, name, "\t", level, "\t", format(message, ...), "\n");
                else