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主要用于日志检测脚本的调用
此脚本不应直接安装。它是供其他脚本使用的外部库，要使用该库请加入元指令 // @require https://update.greasyfork.icu/scripts/440535/1021754/debugout.js
/*
debugout.js
by @inorganik
*/
// save all the console.logs
function debugout() {
var self = this;
// OPTIONS
self.realTimeLoggingOn = true; // log in real time (forwards to console.log)
self.useTimestamps = false; // insert a timestamp in front of each log
self.useLocalStorage = false; // store the output using window.localStorage() and continuously add to the same log each session
self.recordLogs = true; // set to false after you're done debugging to avoid the log eating up memory
self.autoTrim = true; // to avoid the log eating up potentially endless memory
self.maxLines = 2500; // if autoTrim is true, this many most recent lines are saved
self.tailNumLines = 100; // how many lines tail() will retrieve
self.logFilename = 'debugout.txt'; // filename of log downloaded with downloadLog()
// vars
self.depth = 0;
self.parentSizes = [0];
self.currentResult = '';
self.startTime = new Date();
self.output = '';
this.version = function() { return '0.5.0' }
/*
USER METHODS
*/
this.getLog = function() {
var retrievalTime = new Date();
// if recording is off, so dev knows why they don't have any logs
if (!self.recordLogs) {
self.log('[debugout.js] log recording is off.');
}
// if using local storage, get values
if (self.useLocalStorage) {
var saved = window.localStorage.getItem('debugout.js');
if (saved) {
saved = JSON.parse(saved);
self.startTime = new Date(saved.startTime);
self.output = saved.log;
retrievalTime = new Date(saved.lastLog);
}
}
return self.output
+ '\n---- Log retrieved: '+retrievalTime+' ----\n'
+ self.formatSessionDuration(self.startTime, retrievalTime);
}
// accepts optional number or uses the default for number of lines
this.tail = function(numLines) {
var numLines = numLines || self.tailLines;
return self.trimLog(self.getLog(), numLines);
}
// accepts a string to search for
this.search = function(string) {
var lines = self.output.split('\n');
var rgx = new RegExp(string);
var matched = [];
// can't use a simple Array.prototype.filter() here
// because we need to add the line number
for (var i = 0; i < lines.length; i++) {
var addr = '['+i+'] ';
if (lines[i].match(rgx)) {
matched.push(addr + lines[i]);
}
}
var result = matched.join('\n');
if (result.length == 0) result = 'Nothing found for "'+string+'".';
return result
}
// accepts the starting line and how many lines after the starting line you want
this.getSlice = function(lineNumber, numLines) {
var lines = self.output.split('\n');
var segment = lines.slice(lineNumber, lineNumber + numLines);
return segment.join('\n');
}
// immediately downloads the log - for desktop browser use
this.downloadLog = function() {
var file = "data:text/plain;charset=utf-8,";
var logFile = self.getLog();
var encoded = encodeURIComponent(logFile);
file += encoded;
var a = document.createElement('a');
a.href = file;
a.target = '_blank';
a.download = self.logFilename;
document.body.appendChild(a);
a.click();
a.remove();
}
// clears the log
this.clear = function() {
var clearTime = new Date();
self.output = '---- Log cleared: '+clearTime+' ----\n';
if (self.useLocalStorage) {
// local storage
var saveObject = {
startTime: self.startTime,
log: self.output,
lastLog: clearTime
}
saveObject = JSON.stringify(saveObject);
window.localStorage.setItem('debugout.js', saveObject);
}
if (self.realTimeLoggingOn) console.log('[debugout.js] clear()');
}
// records a log
this.log = function(obj) {
// log in real time
if (self.realTimeLoggingOn) console.log(obj);
// record log
var type = self.determineType(obj);
if (type != null && self.recordLogs) {
var addition = self.formatType(type, obj);
// timestamp, formatted for brevity
if (self.useTimestamps) {
var logTime = new Date();
self.output += self.formatTimestamp(logTime);
}
self.output += addition+'\n';
if (self.autoTrim) self.output = self.trimLog(self.output, self.maxLines);
// local storage
if (self.useLocalStorage) {
var last = new Date();
var saveObject = {
startTime: self.startTime,
log: self.output,
lastLog: last
}
saveObject = JSON.stringify(saveObject);
window.localStorage.setItem('debugout.js', saveObject);
}
}
self.depth = 0;
self.parentSizes = [0];
self.currentResult = '';
}
/*
METHODS FOR CONSTRUCTING THE LOG
*/
// like typeof but classifies objects of type 'object'
// kept separate from formatType() so you can use at your convenience!
this.determineType = function(object) {
if (object != null) {
var typeResult;
var type = typeof object;
if (type == 'object') {
var len = object.length;
if (len == null) {
if (typeof object.getTime == 'function') {
typeResult = 'Date';
}
else if (typeof object.test == 'function') {
typeResult = 'RegExp';
}
else {
typeResult = 'Object';
}
} else {
typeResult = 'Array';
}
} else {
typeResult = type;
}
return typeResult;
} else {
return null;
}
}
// format type accordingly, recursively if necessary
this.formatType = function(type, obj) {
switch(type) {
case 'Object' :
self.currentResult += '{\n';
self.depth++;
self.parentSizes.push(self.objectSize(obj));
var i = 0;
for (var prop in obj) {
self.currentResult += self.indentsForDepth(self.depth);
self.currentResult += prop + ': ';
var subtype = self.determineType(obj[prop]);
var subresult = self.formatType(subtype, obj[prop]);
if (subresult) {
self.currentResult += subresult;
if (i != self.parentSizes[self.depth]-1) self.currentResult += ',';
self.currentResult += '\n';
} else {
if (i != self.parentSizes[self.depth]-1) self.currentResult += ',';
self.currentResult += '\n';
}
i++;
}
self.depth--;
self.parentSizes.pop();
self.currentResult += self.indentsForDepth(self.depth);
self.currentResult += '}';
if (self.depth == 0) return self.currentResult;
break;
case 'Array' :
self.currentResult += '[';
self.depth++;
self.parentSizes.push(obj.length);
for (var i = 0; i < obj.length; i++) {
var subtype = self.determineType(obj[i]);
if (subtype == 'Object' || subtype == 'Array') self.currentResult += '\n' + self.indentsForDepth(self.depth);
var subresult = self.formatType(subtype, obj[i]);
if (subresult) {
self.currentResult += subresult;
if (i != self.parentSizes[self.depth]-1) self.currentResult += ', ';
if (subtype == 'Array') self.currentResult += '\n';
} else {
if (i != self.parentSizes[self.depth]-1) self.currentResult += ', ';
if (subtype != 'Object') self.currentResult += '\n';
else if (i == self.parentSizes[self.depth]-1) self.currentResult += '\n';
}
}
self.depth--;
self.parentSizes.pop();
self.currentResult += ']';
if (self.depth == 0) return self.currentResult;
break;
case 'function' :
obj += '';
var lines = obj.split('\n');
for (var i = 0; i < lines.length; i++) {
if (lines[i].match(/\}/)) self.depth--;
self.currentResult += self.indentsForDepth(self.depth);
if (lines[i].match(/\{/)) self.depth++;
self.currentResult += lines[i] + '\n';
}
return self.currentResult;
break;
case 'RegExp' :
return '/'+obj.source+'/';
break;
case 'Date' :
case 'string' :
if (self.depth > 0 || obj.length == 0) {
return '"'+obj+'"';
} else {
return obj;
}
case 'boolean' :
if (obj) return 'true';
else return 'false';
case 'number' :
return obj+'';
break;
}
}
this.indentsForDepth = function(depth) {
var str = '';
for (var i = 0; i < depth; i++) {
str += '\t';
}
return str;
}
this.trimLog = function(log, maxLines) {
var lines = log.split('\n');
if (lines.length > maxLines) {
lines = lines.slice(lines.length - maxLines);
}
return lines.join('\n');
}
this.lines = function() {
return self.output.split('\n').length;
}
// calculate testing time
this.formatSessionDuration = function(startTime, endTime) {
var msec = endTime - startTime;
var hh = Math.floor(msec / 1000 / 60 / 60);
var hrs = ('0' + hh).slice(-2);
msec -= hh * 1000 * 60 * 60;
var mm = Math.floor(msec / 1000 / 60);
var mins = ('0' + mm).slice(-2);
msec -= mm * 1000 * 60;
var ss = Math.floor(msec / 1000);
var secs = ('0' + ss).slice(-2);
msec -= ss * 1000;
return '---- Session duration: '+hrs+':'+mins+':'+secs+' ----'
}
this.formatTimestamp = function(timestamp) {
var year = timestamp.getFullYear();
var date = timestamp.getDate();
var month = ('0' + (timestamp.getMonth() +1)).slice(-2);
var hrs = Number(timestamp.getHours());
var mins = ('0' + timestamp.getMinutes()).slice(-2);
var secs = ('0' + timestamp.getSeconds()).slice(-2);
return '['+ year + '-' + month + '-' + date + ' ' + hrs + ':' + mins + ':'+secs + ']: ';
}
this.objectSize = function(obj) {
var size = 0, key;
for (key in obj) {
if (obj.hasOwnProperty(key)) size++;
}
return size;
}
/*
START/RESUME LOG
*/
if (self.useLocalStorage) {
var saved = window.localStorage.getItem('debugout.js');
if (saved) {
saved = JSON.parse(saved);
self.output = saved.log;
var start = new Date(saved.startTime);
var end = new Date(saved.lastLog);
self.output += '\n---- Session end: '+saved.lastLog+' ----\n';
self.output += self.formatSessionDuration(start, end);
self.output += '\n\n';
}
}
self.output += '---- Session started: '+self.startTime+' ----\n\n';
}