zotero/chrome/content/zotero/xpcom/debug.js

303 lines
8 KiB
JavaScript

/*
***** BEGIN LICENSE BLOCK *****
Copyright © 2009 Center for History and New Media
George Mason University, Fairfax, Virginia, USA
http://zotero.org
This file is part of Zotero.
Zotero is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Zotero is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with Zotero. If not, see <http://www.gnu.org/licenses/>.
***** END LICENSE BLOCK *****
*/
Zotero.Debug = new function () {
var _console, _stackTrace, _store, _level, _lastTime, _output = [];
var _slowTime = false;
var _colorOutput = false;
var _consoleViewer = false;
var _consoleViewerQueue = [];
var _consoleViewerListener;
/**
* Initialize debug logging
*
* Debug logging can be set in several different ways:
*
* - via the debug.log pref in the client or connector
* - by enabling debug output logging from the Help menu
* - by passing -ZoteroDebug or -ZoteroDebugText on the command line
*
* In the client, debug.log and -ZoteroDebugText enable logging via the terminal, while -ZoteroDebug
* enables logging via an in-app HTML-based window.
*
* @param {Integer} [forceDebugLog = 0] - Force output even if pref disabled
* 2: window (-ZoteroDebug)
* 1: text console (-ZoteroDebugText)
* 0: disabled
*/
this.init = function (forceDebugLog = 0) {
_console = Zotero.Prefs.get('debug.log') || forceDebugLog == 1;
_consoleViewer = forceDebugLog == 2;
// When logging to the text console from the client on Mac/Linux, colorize output
if (_console && Zotero.isFx && !Zotero.isBookmarklet) {
_colorOutput = true;
// Time threshold in ms above which intervals should be colored red in terminal output
_slowTime = Zotero.Prefs.get('debug.log.slowTime');
}
_store = Zotero.Prefs.get('debug.store');
if (_store) {
Zotero.Prefs.set('debug.store', false);
}
_level = Zotero.Prefs.get('debug.level');
_stackTrace = Zotero.Prefs.get('debug.stackTrace');
this.storing = _store;
this.updateEnabled();
if (Zotero.isStandalone) {
// Enable dump() from window (non-XPCOM) scopes when terminal or viewer logging is enabled.
// (These will always go to the terminal, even in viewer mode.)
Zotero.Prefs.set('browser.dom.window.dump.enabled', _console || _consoleViewer, true);
if (_consoleViewer) {
setTimeout(function () {
Zotero.openInViewer("chrome://zotero/content/debugViewer.html");
}, 1000);
}
}
}
this.log = function (message, level, maxDepth, stack) {
if (!this.enabled) {
return;
}
if (typeof message != 'string') {
message = Zotero.Utilities.varDump(message, 0, maxDepth);
}
if (!level) {
level = 3;
}
// If level above debug.level value, don't display
if (level > _level) {
return;
}
var deltaStr = '';
var deltaStrStore = '';
var delta = 0;
var d = new Date();
if (_lastTime) {
delta = d - _lastTime;
}
_lastTime = d;
var slowPrefix = "";
var slowSuffix = "";
if (_slowTime && delta > _slowTime) {
slowPrefix = "\x1b[31;40m";
slowSuffix = "\x1b[0m";
}
delta = ("" + delta).padStart(7, "0")
deltaStr = "(" + slowPrefix + "+" + delta + slowSuffix + ")";
if (_store) {
deltaStrStore = "(+" + delta + ")";
}
if (stack === true) {
// Display stack starting from where this was called
stack = Components.stack.caller;
} else if (stack >= 0) {
let i = stack;
stack = Components.stack.caller;
while(stack && i--) {
stack = stack.caller;
}
} else if (_stackTrace) {
// Stack trace enabled globally
stack = Components.stack.caller;
} else {
stack = undefined;
}
if (stack) {
message += '\n' + this.stackToString(stack);
}
if (_console || _consoleViewer) {
var output = '(' + level + ')' + deltaStr + ': ' + message;
if (Zotero.isFx && !Zotero.isBookmarklet) {
// Text console
if (_console) {
dump("zotero" + output + "\n\n");
}
// Console window
if (_consoleViewer) {
// Remove ANSI color codes. We could replace this with HTML, but it's probably
// unnecessarily distracting/alarming to show the red in the viewer. Devs who care
// about times should just use a terminal.
if (slowPrefix) {
output = output.replace(slowPrefix, '').replace(slowSuffix, '');
}
// If there's a listener, pass line immediately
if (_consoleViewerListener) {
_consoleViewerListener(output);
}
// Otherwise add to queue
else {
_consoleViewerQueue.push(output);
}
}
} else if(window.console) {
window.console.log(output);
}
}
if (_store) {
if (Math.random() < 1/1000) {
// Remove initial lines if over limit
var overage = this.count() - Zotero.Prefs.get('debug.store.limit');
if (overage > 0) {
_output.splice(0, Math.abs(overage));
}
}
_output.push('(' + level + ')' + deltaStrStore + ': ' + message);
}
}
this.get = Zotero.Promise.method(function(maxChars, maxLineLength) {
var output = _output;
var total = output.length;
if (total == 0) {
return "";
}
if (maxLineLength) {
for (var i=0, len=output.length; i<len; i++) {
if (output[i].length > maxLineLength) {
output[i] = Zotero.Utilities.ellipsize(output[i], maxLineLength, false, true);
}
}
}
output = output.join('\n\n');
if (maxChars) {
output = output.substr(maxChars * -1);
// Cut at two newlines
let matches = output.match(/^[\n]*\n\n/);
if (matches) {
output = output.substr(matches[0].length);
}
}
return Zotero.getSystemInfo().then(function(sysInfo) {
if (Zotero.isConnector) {
return Zotero.Errors.getErrors().then(function(errors) {
return errors.join('\n\n') +
"\n\n" + sysInfo + "\n\n" +
"=========================================================\n\n" +
output;
});
}
else {
return Zotero.getErrors(true).join('\n\n') +
"\n\n" + sysInfo + "\n\n" +
"=========================================================\n\n" +
output;
}
});
});
this.getConsoleViewerOutput = function () {
var queue = _output.concat(_consoleViewerQueue);
_consoleViewerQueue = [];
return queue;
}
this.addConsoleViewerListener = function (listener) {
this.enabled = _consoleViewer = true;
_consoleViewerListener = listener;
};
this.removeConsoleViewerListener = function () {
_consoleViewerListener = null;
// At least for now, stop logging once console viewer is closed
_consoleViewer = false;
this.updateEnabled();
};
this.setStore = function (enable) {
if (enable) {
this.clear();
}
_store = enable;
this.updateEnabled();
this.storing = _store;
}
this.updateEnabled = function () {
this.enabled = _console || _consoleViewer || _store;
};
this.count = function () {
return _output.length;
}
this.clear = function () {
_output = [];
}
/**
* Format a stack trace for output in the same way that Error.stack does
* @param {Components.stack} stack
* @param {Integer} [lines=5] Number of lines to format
*/
this.stackToString = function (stack, lines) {
if (!lines) lines = 5;
var str = '';
while(stack && lines--) {
str += '\n ' + (stack.name || '') + '@' + stack.filename
+ ':' + stack.lineNumber;
stack = stack.caller;
}
return this.filterStack(str).substr(1);
};
/**
* Strip Bluebird lines from a stack trace
*
* @param {String} stack
*/
this.filterStack = function (stack) {
return stack.split(/\n/).filter(line => line.indexOf('zotero/bluebird') == -1).join('\n');
}
}