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Bugfix and adding ability to change logging level #8

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Bugfix and adding ability to change logging level #8

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217c3bf
adding ability to change logging levels
chrishamant Dec 28, 2011
a83f97e
fixing bug where new Log(0) is overwritten by defaults
chrishamant Dec 28, 2011
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26 changes: 26 additions & 0 deletions examples/changeLevel.js
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Original file line number Diff line number Diff line change
@@ -0,0 +1,26 @@

/**
* Module dependencies.
*/

var Log = require('../lib/log')
, log = new Log();

var loop = 0;

function LogStuffOnLevels(){
loop++;
log.debug('a debug message %s',loop);
log.info('a info message %s',loop);
log.notice('a notice message %s',loop);
log.warning('a warning message %s',loop);
log.error('a error message %s',loop);
log.critical('a critical message %s',loop);
log.alert('a alert message %s',loop);
log.emergency('a emergency message %s',loop);
}

for(var i=0;i<8;i++){
log.setLevel(i);
LogStuffOnLevels();
}
17 changes: 15 additions & 2 deletions lib/log.js
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Original file line number Diff line number Diff line change
Expand Up @@ -21,8 +21,9 @@ var EventEmitter = require('events').EventEmitter;
*/

var Log = exports = module.exports = function Log(level, stream){
if ('string' == typeof level) level = exports[level.toUpperCase()];
this.level = level || exports.DEBUG;
if ('string' === typeof level) level = exports[level.toUpperCase()];
if ('undefined' === typeof level) level = exports.DEBUG;
this.level = level;
this.stream = stream || process.stdout;
if (this.stream.readable) this.read();
};
Expand Down Expand Up @@ -157,6 +158,18 @@ Log.prototype = {
);
}
},

/**
* Change current logging level.
*
* @param {Number} level
* @api public
*/

setLevel: function(level) {
if ('string' == typeof level) level = exports[level.toUpperCase()];
this.level = level;
},

/**
* Log emergency `msg`.
Expand Down