copy benchmark.js to gzip-benchmark.js

diff --git a/gzip-benchmark.js b/gzip-benchmark.js
new file mode 100644 (file)
index 0000000..4103d1c
--- /dev/null
+++ b/gzip-benchmark.js
@@ -0,0 +1,83 @@
+/* jshint strict:false */
+
+var fs = require('fs'),
+    exec = require('child_process').exec,
+    Table = require('cli-table'),
+    _ = require('underscore');
+
+function average (arr) {
+  return _.reduce(arr, function(memo, num) {
+    return memo + num;
+  }, 0) / arr.length;
+}
+
+var fileNames = [
+  // 'es6-draft',
+  // 'eloquentjavascript',
+  'wikipedia',
+  'stackoverflow',
+  'amazon',
+  'es6-table',
+  'msn',
+  'google',
+  'newyorktimes',
+  'abc',
+  'html-minifier'
+];
+
+var table = new Table({
+  head: ['File', 'Before', 'After', 'Savings', 'Time'],
+  colWidths: [20, 25, 25, 20, 20]
+});
+
+var allSavings = [];
+var allTimes = [];
+
+console.log('');
+function test(fileName, done) {
+
+  if (!fileName) {
+    console.log(table.toString() + '\n');
+    console.log('Average savings: \033[96m' + average(allSavings).toFixed(2) + '\033[0m%');
+    console.log('Average time: \033[96m' + average(allTimes).toFixed(2) + '\033[0mms\n');
+    return;
+  }
+
+  var filePath = 'benchmarks/' + fileName + '.html';
+  var minifedFilePath = 'benchmarks/' + fileName + '.min.html';
+  var command = './cli.js ' + filePath + ' -c benchmark.conf' + ' -o ' + minifedFilePath;
+
+  fs.stat(filePath, function (err, stats) {
+
+    var beforeSize = stats.size;
+    var startTime = new Date();
+
+    console.log('Processing...', fileName);
+
+    exec(command, function () {
+      fs.stat(minifedFilePath, function (err, stats) {
+
+        var time = new Date() - startTime;
+        var savingsPercent = (1 - stats.size / beforeSize) * 100;
+        var savings = (beforeSize - stats.size) / 1024;
+
+        allSavings.push(savings);
+        allTimes.push(time);
+
+        table.push([
+          fileName,
+          '\033[91m' + beforeSize + '\033[0m (' + (beforeSize / 1024).toFixed(2) + 'KB)',
+          '\033[92m' + stats.size + '\033[0m (' + (stats.size / 1024).toFixed(2) + 'KB)',
+          '\033[96m' + savingsPercent.toFixed(2) + '\033[0m% (' + savings.toFixed(2) + 'KB)',
+          '\033[96m' + time + '\033[0mms'
+        ]);
+
+        done();
+      });
+    });
+  });
+}
+
+(function run() {
+  test(fileNames.pop(), run);
+})();