108 lines
3 KiB
JavaScript
108 lines
3 KiB
JavaScript
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var chalk = require('chalk');
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var util = require('util');
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var logTable = require('./log_table');
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var countBuffer = {};
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function logWithColor(color, args, isError){
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var log = util.format.apply(this, args);
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if(isError)
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console.error(chalk[color](log));
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else
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console.log(chalk[color](log));
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}
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module.exports = {
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// Writes a message to the console. You may pass as many arguments as
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// you'd like, and they will be joined together in a space-delimited line.
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// The first argument to log may be a string containing
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// printf-like string substitution patterns.
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log: function(){
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console.log.apply(this, arguments);
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},
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// Writes a message to the console with blue color
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info: function(){
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logWithColor('blue', arguments);
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},
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// Writes a message to the console with yellow color
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warn: function(){
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logWithColor('yellow', arguments, true);
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},
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// Writes a message to the console with red color
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error: function(){
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logWithColor('red', arguments, true);
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},
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// Writes a message to the console with regular color
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debug: function(){
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console.log.apply(this, arguments);
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},
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// Prints an interactive listing of all properties of the object.
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dir: function(){
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console.dir.apply(this, arguments);
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},
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// Clears the terminal buffer
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clear: function(){
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process.stdout.write('\u001B[2J\u001B[0;0f');
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},
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// Prints a stack trace of JavaScript execution at the point
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// where it is called. The stack trace details the functions on the stack,
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// as well as the values that were passed as arguments to each function.
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trace: function(){
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console.trace.apply(this, arguments);
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},
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// Does nothing if first argument is truly. If first argument is falsy
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// it Writes red warning and throws assertion error
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assert: function(assertion){
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// todo: for now we are cheating, it's just console.erroring and then
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// leave console.asset to do it's job. actual todo: print what
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// console.assert prints just make first line red
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if (!assertion){
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logWithColor('red', ['AssertionError: false == true']);
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console.assert(assertion);
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}
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},
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// Writes number of times each argument is called with blue color
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count: function(toCount){
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var toCountString = toCount.toString && toCount.toString(),
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log;
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if (countBuffer[toCountString] == null){
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countBuffer[toCountString] = 0;
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}else{
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countBuffer[toCountString] += 1;
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}
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log = toCountString + ': ' + countBuffer[toCountString];
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logWithColor('blue', [log]);
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},
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// Creates a new timer under the given name. Call console.timeEnd(name)
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// with the same name to stop the timer and print the time elapsed..
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time: function(){
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console.time.apply(this, arguments);
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},
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// Stops a timer created by a call to console.time(name) and writes the time
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// elapsed.
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timeEnd: function(){
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console.timeEnd.apply(this, arguments);
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},
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// draws a table of elements inside of a 2d array or object
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table: function(){
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logTable.apply(this, arguments);
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}
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};
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