author | Matthew Wild <mwild1@gmail.com> |
Tue, 05 May 2009 14:19:20 +0100 | |
changeset 1117 | 360ec48ea780 |
parent 1101 | fb096ca4b296 |
child 1343 | a0bee511d144 |
permissions | -rw-r--r-- |
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local format, rep = string.format, string.rep; |
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local pcall = pcall; |
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local debug = debug; |
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local tostring, setmetatable, rawset, pairs, ipairs, type = |
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tostring, setmetatable, rawset, pairs, ipairs, type; |
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local io_open, io_write = io.open, io.write; |
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local math_max, rep = math.max, string.rep; |
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local os_date, os_getenv = os.date, os.getenv; |
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local getstyle, getstring = require "util.termcolours".getstyle, require "util.termcolours".getstring; |
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local config = require "core.configmanager"; |
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local eventmanager = require "core.eventmanager"; |
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local logger = require "util.logger"; |
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_G.log = logger.init("general"); |
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module "loggingmanager" |
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-- The log config used if none specified in the config file |
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local default_logging = { { to = "console" } }; |
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local default_file_logging = { { to = "file", levels = { min = "info" } } }; |
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local default_timestamp = "%b %d %T"; |
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-- The actual config loggingmanager is using |
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local logging_config = config.get("*", "core", "log") or default_logging; |
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local apply_sink_rules; |
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local log_sink_types = setmetatable({}, { __newindex = function (t, k, v) rawset(t, k, v); apply_sink_rules(k); end; }); |
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local get_levels; |
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local logging_levels = { "debug", "info", "warn", "error", "critical" } |
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-- Put a rule into action. Requires that the sink type has already been registered. |
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-- This function is called automatically when a new sink type is added [see apply_sink_rules()] |
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local function add_rule(sink_config) |
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local sink_maker = log_sink_types[sink_config.to]; |
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if sink_maker then |
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if sink_config.levels and not sink_config.source then |
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-- Create sink |
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local sink = sink_maker(sink_config); |
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-- Set sink for all chosen levels |
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for level in pairs(get_levels(sink_config.levels)) do |
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logger.add_level_sink(level, sink); |
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end |
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elseif sink_config.source and not sink_config.levels then |
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logger.add_name_sink(sink_config.source, sink_maker(sink_config)); |
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elseif sink_config.source and sink_config.levels then |
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local levels = get_levels(sink_config.levels); |
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local sink = sink_maker(sink_config); |
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logger.add_name_sink(sink_config.source, |
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function (name, level, ...) |
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if levels[level] then |
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return sink(name, level, ...); |
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end |
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end); |
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else |
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-- All sources |
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-- Create sink |
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local sink = sink_maker(sink_config); |
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-- Set sink for all levels |
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for _, level in pairs(logging_levels) do |
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logger.add_level_sink(level, sink); |
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end |
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end |
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else |
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-- No such sink type |
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end |
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end |
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-- Search for all rules using a particular sink type, and apply |
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-- them. Called automatically when a new sink type is added to |
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-- the log_sink_types table. |
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function apply_sink_rules(sink_type) |
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if type(logging_config) == "table" then |
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for _, sink_config in pairs(logging_config) do |
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if sink_config.to == sink_type then |
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add_rule(sink_config); |
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end |
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end |
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elseif type(logging_config) == "string" and (not logging_config:match("^%*")) and sink_type == "file" then |
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-- User specified simply a filename, and the "file" sink type |
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-- was just added |
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for _, sink_config in pairs(default_file_logging) do |
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sink_config.filename = logging_config; |
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add_rule(sink_config); |
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sink_config.filename = nil; |
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end |
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elseif type(logging_config) == "string" and logging_config:match("^%*(.+)") == sink_type then |
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-- Log all levels (debug+) to this sink |
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add_rule({ levels = { min = "debug" }, to = sink_type }); |
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end |
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end |
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|
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--- Helper function to get a set of levels given a "criteria" table |
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|
98 |
function get_levels(criteria, set) |
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|
99 |
set = set or {}; |
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|
100 |
if type(criteria) == "string" then |
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|
101 |
set[criteria] = true; |
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|
102 |
return set; |
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|
103 |
end |
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|
104 |
local min, max = criteria.min, criteria.max; |
f9122efeaadd
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|
105 |
if min or max then |
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|
106 |
local in_range; |
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|
107 |
for _, level in ipairs(logging_levels) do |
f9122efeaadd
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|
108 |
if min == level then |
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|
109 |
set[level] = true; |
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|
110 |
in_range = true; |
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|
111 |
elseif max == level then |
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|
112 |
set[level] = true; |
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|
113 |
return set; |
f9122efeaadd
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|
114 |
elseif in_range then |
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|
115 |
set[level] = true; |
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|
116 |
end |
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|
117 |
end |
f9122efeaadd
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|
118 |
end |
f9122efeaadd
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|
119 |
|
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|
120 |
for _, level in ipairs(criteria) do |
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|
121 |
set[level] = true; |
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|
122 |
end |
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|
123 |
return set; |
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|
124 |
end |
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diff
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|
125 |
|
1031
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|
126 |
--- Definition of built-in logging sinks --- |
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|
127 |
|
1080
b02290fd8a75
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|
128 |
-- Null sink, must enter log_sink_types *first* |
1031
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|
129 |
function log_sink_types.nowhere() |
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130 |
return function () return false; end; |
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|
131 |
end |
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core.loggingmanager: Refactoring, converted to a module. Now possible to register additional sink types (think syslog) from other modules
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|
132 |
|
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core.loggingmanager: Refactoring, converted to a module. Now possible to register additional sink types (think syslog) from other modules
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|
133 |
-- Column width for "source" (used by stdout and console) |
ec013f93de81
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|
134 |
local sourcewidth = 20; |
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|
135 |
|
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|
136 |
function log_sink_types.stdout() |
1078
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|
137 |
local timestamps = config.timestamps; |
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|
138 |
|
24c9ee99d900
loggingmanager: Support prepending timestamps in file/console/stdout log sinks
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|
139 |
if timestamps == true then |
24c9ee99d900
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|
140 |
timestamps = default_timestamp; -- Default format |
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|
141 |
end |
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|
142 |
|
1031
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|
143 |
return function (name, level, message, ...) |
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|
144 |
sourcewidth = math_max(#name+2, sourcewidth); |
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core.loggingmanager: Refactoring, converted to a module. Now possible to register additional sink types (think syslog) from other modules
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|
145 |
local namelen = #name; |
1078
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|
146 |
if timestamps then |
24c9ee99d900
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|
147 |
io_write(os_date(timestamps), " "); |
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|
148 |
end |
1031
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|
149 |
if ... then |
ec013f93de81
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diff
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|
150 |
io_write(name, rep(" ", sourcewidth-namelen), level, "\t", format(message, ...), "\n"); |
ec013f93de81
core.loggingmanager: Refactoring, converted to a module. Now possible to register additional sink types (think syslog) from other modules
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diff
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|
151 |
else |
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core.loggingmanager: Refactoring, converted to a module. Now possible to register additional sink types (think syslog) from other modules
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diff
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|
152 |
io_write(name, rep(" ", sourcewidth-namelen), level, "\t", message, "\n"); |
ec013f93de81
core.loggingmanager: Refactoring, converted to a module. Now possible to register additional sink types (think syslog) from other modules
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diff
changeset
|
153 |
end |
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core.loggingmanager: Refactoring, converted to a module. Now possible to register additional sink types (think syslog) from other modules
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diff
changeset
|
154 |
end |
ec013f93de81
core.loggingmanager: Refactoring, converted to a module. Now possible to register additional sink types (think syslog) from other modules
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parents:
1024
diff
changeset
|
155 |
end |
1021
f9122efeaadd
core.loggingmanager: Filled out most code, and cleaned up
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diff
changeset
|
156 |
|
1031
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|
157 |
do |
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core.loggingmanager: Refactoring, converted to a module. Now possible to register additional sink types (think syslog) from other modules
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|
158 |
local do_pretty_printing = not os_getenv("WINDIR"); |
ec013f93de81
core.loggingmanager: Refactoring, converted to a module. Now possible to register additional sink types (think syslog) from other modules
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diff
changeset
|
159 |
|
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core.loggingmanager: Refactoring, converted to a module. Now possible to register additional sink types (think syslog) from other modules
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|
160 |
local logstyles = {}; |
ec013f93de81
core.loggingmanager: Refactoring, converted to a module. Now possible to register additional sink types (think syslog) from other modules
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|
161 |
if do_pretty_printing then |
ec013f93de81
core.loggingmanager: Refactoring, converted to a module. Now possible to register additional sink types (think syslog) from other modules
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|
162 |
logstyles["info"] = getstyle("bold"); |
ec013f93de81
core.loggingmanager: Refactoring, converted to a module. Now possible to register additional sink types (think syslog) from other modules
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|
163 |
logstyles["warn"] = getstyle("bold", "yellow"); |
ec013f93de81
core.loggingmanager: Refactoring, converted to a module. Now possible to register additional sink types (think syslog) from other modules
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diff
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|
164 |
logstyles["error"] = getstyle("bold", "red"); |
ec013f93de81
core.loggingmanager: Refactoring, converted to a module. Now possible to register additional sink types (think syslog) from other modules
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parents:
1024
diff
changeset
|
165 |
end |
ec013f93de81
core.loggingmanager: Refactoring, converted to a module. Now possible to register additional sink types (think syslog) from other modules
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parents:
1024
diff
changeset
|
166 |
function log_sink_types.console(config) |
ec013f93de81
core.loggingmanager: Refactoring, converted to a module. Now possible to register additional sink types (think syslog) from other modules
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parents:
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diff
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|
167 |
-- Really if we don't want pretty colours then just use plain stdout |
ec013f93de81
core.loggingmanager: Refactoring, converted to a module. Now possible to register additional sink types (think syslog) from other modules
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parents:
1024
diff
changeset
|
168 |
if not do_pretty_printing then |
ec013f93de81
core.loggingmanager: Refactoring, converted to a module. Now possible to register additional sink types (think syslog) from other modules
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parents:
1024
diff
changeset
|
169 |
return log_sink_types.stdout(config); |
ec013f93de81
core.loggingmanager: Refactoring, converted to a module. Now possible to register additional sink types (think syslog) from other modules
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diff
changeset
|
170 |
end |
ec013f93de81
core.loggingmanager: Refactoring, converted to a module. Now possible to register additional sink types (think syslog) from other modules
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parents:
1024
diff
changeset
|
171 |
|
1078
24c9ee99d900
loggingmanager: Support prepending timestamps in file/console/stdout log sinks
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parents:
1067
diff
changeset
|
172 |
local timestamps = config.timestamps; |
24c9ee99d900
loggingmanager: Support prepending timestamps in file/console/stdout log sinks
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parents:
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diff
changeset
|
173 |
|
24c9ee99d900
loggingmanager: Support prepending timestamps in file/console/stdout log sinks
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parents:
1067
diff
changeset
|
174 |
if timestamps == true then |
24c9ee99d900
loggingmanager: Support prepending timestamps in file/console/stdout log sinks
Matthew Wild <mwild1@gmail.com>
parents:
1067
diff
changeset
|
175 |
timestamps = default_timestamp; -- Default format |
24c9ee99d900
loggingmanager: Support prepending timestamps in file/console/stdout log sinks
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parents:
1067
diff
changeset
|
176 |
end |
24c9ee99d900
loggingmanager: Support prepending timestamps in file/console/stdout log sinks
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parents:
1067
diff
changeset
|
177 |
|
1031
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diff
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|
178 |
return function (name, level, message, ...) |
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core.loggingmanager: Refactoring, converted to a module. Now possible to register additional sink types (think syslog) from other modules
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parents:
1024
diff
changeset
|
179 |
sourcewidth = math_max(#name+2, sourcewidth); |
ec013f93de81
core.loggingmanager: Refactoring, converted to a module. Now possible to register additional sink types (think syslog) from other modules
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parents:
1024
diff
changeset
|
180 |
local namelen = #name; |
1078
24c9ee99d900
loggingmanager: Support prepending timestamps in file/console/stdout log sinks
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parents:
1067
diff
changeset
|
181 |
if timestamps then |
24c9ee99d900
loggingmanager: Support prepending timestamps in file/console/stdout log sinks
Matthew Wild <mwild1@gmail.com>
parents:
1067
diff
changeset
|
182 |
io_write(os_date(timestamps), " "); |
24c9ee99d900
loggingmanager: Support prepending timestamps in file/console/stdout log sinks
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parents:
1067
diff
changeset
|
183 |
end |
1031
ec013f93de81
core.loggingmanager: Refactoring, converted to a module. Now possible to register additional sink types (think syslog) from other modules
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parents:
1024
diff
changeset
|
184 |
if ... then |
ec013f93de81
core.loggingmanager: Refactoring, converted to a module. Now possible to register additional sink types (think syslog) from other modules
Matthew Wild <mwild1@gmail.com>
parents:
1024
diff
changeset
|
185 |
io_write(name, rep(" ", sourcewidth-namelen), getstring(logstyles[level], level), "\t", format(message, ...), "\n"); |
ec013f93de81
core.loggingmanager: Refactoring, converted to a module. Now possible to register additional sink types (think syslog) from other modules
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parents:
1024
diff
changeset
|
186 |
else |
ec013f93de81
core.loggingmanager: Refactoring, converted to a module. Now possible to register additional sink types (think syslog) from other modules
Matthew Wild <mwild1@gmail.com>
parents:
1024
diff
changeset
|
187 |
io_write(name, rep(" ", sourcewidth-namelen), getstring(logstyles[level], level), "\t", message, "\n"); |
ec013f93de81
core.loggingmanager: Refactoring, converted to a module. Now possible to register additional sink types (think syslog) from other modules
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parents:
1024
diff
changeset
|
188 |
end |
ec013f93de81
core.loggingmanager: Refactoring, converted to a module. Now possible to register additional sink types (think syslog) from other modules
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parents:
1024
diff
changeset
|
189 |
end |
ec013f93de81
core.loggingmanager: Refactoring, converted to a module. Now possible to register additional sink types (think syslog) from other modules
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parents:
1024
diff
changeset
|
190 |
end |
ec013f93de81
core.loggingmanager: Refactoring, converted to a module. Now possible to register additional sink types (think syslog) from other modules
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parents:
1024
diff
changeset
|
191 |
end |
ec013f93de81
core.loggingmanager: Refactoring, converted to a module. Now possible to register additional sink types (think syslog) from other modules
Matthew Wild <mwild1@gmail.com>
parents:
1024
diff
changeset
|
192 |
|
1117
360ec48ea780
loggingmanager: File log sinks react to reopen-log-files event
Matthew Wild <mwild1@gmail.com>
parents:
1101
diff
changeset
|
193 |
local empty_function = function () end; |
1031
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core.loggingmanager: Refactoring, converted to a module. Now possible to register additional sink types (think syslog) from other modules
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diff
changeset
|
194 |
function log_sink_types.file(config) |
ec013f93de81
core.loggingmanager: Refactoring, converted to a module. Now possible to register additional sink types (think syslog) from other modules
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parents:
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diff
changeset
|
195 |
local log = config.filename; |
ec013f93de81
core.loggingmanager: Refactoring, converted to a module. Now possible to register additional sink types (think syslog) from other modules
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parents:
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diff
changeset
|
196 |
local logfile = io_open(log, "a+"); |
ec013f93de81
core.loggingmanager: Refactoring, converted to a module. Now possible to register additional sink types (think syslog) from other modules
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parents:
1024
diff
changeset
|
197 |
if not logfile then |
1117
360ec48ea780
loggingmanager: File log sinks react to reopen-log-files event
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parents:
1101
diff
changeset
|
198 |
return empty_function; |
1031
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core.loggingmanager: Refactoring, converted to a module. Now possible to register additional sink types (think syslog) from other modules
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diff
changeset
|
199 |
end |
1117
360ec48ea780
loggingmanager: File log sinks react to reopen-log-files event
Matthew Wild <mwild1@gmail.com>
parents:
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diff
changeset
|
200 |
local write, flush = logfile.write, logfile.flush; |
360ec48ea780
loggingmanager: File log sinks react to reopen-log-files event
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parents:
1101
diff
changeset
|
201 |
|
360ec48ea780
loggingmanager: File log sinks react to reopen-log-files event
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parents:
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diff
changeset
|
202 |
eventmanager.add_event_hook("reopen-log-files", function () |
360ec48ea780
loggingmanager: File log sinks react to reopen-log-files event
Matthew Wild <mwild1@gmail.com>
parents:
1101
diff
changeset
|
203 |
if logfile then |
360ec48ea780
loggingmanager: File log sinks react to reopen-log-files event
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diff
changeset
|
204 |
logfile:close(); |
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end |
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logfile = io_open(log, "a+"); |
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if not logfile then |
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write, flush = empty_function, empty_function; |
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else |
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write, flush = logfile.write, logfile.flush; |
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end |
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end); |
1031
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|
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local timestamps = config.timestamps; |
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|
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if timestamps == true then |
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timestamps = default_timestamp; -- Default format |
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end |
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219 |
|
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return function (name, level, message, ...) |
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if timestamps then |
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write(logfile, os_date(timestamps), " "); |
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end |
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if ... then |
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write(logfile, name, "\t", level, "\t", format(message, ...), "\n"); |
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else |
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write(logfile, name, "\t" , level, "\t", message, "\n"); |
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end |
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flush(logfile); |
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end; |
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end |
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|
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function register_sink_type(name, sink_maker) |
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local old_sink_maker = log_sink_types[name]; |
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log_sink_types[name] = sink_maker; |
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return old_sink_maker; |
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end |
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238 |
|
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return _M; |