Demo for query storing

Change-Id: I947bcac841992c3f6cfd01ab337c265b0d01cb70
diff --git a/node_modules/grunt-contrib-imagemin/tasks/imagemin.js b/node_modules/grunt-contrib-imagemin/tasks/imagemin.js
new file mode 100644
index 0000000..6def978
--- /dev/null
+++ b/node_modules/grunt-contrib-imagemin/tasks/imagemin.js
@@ -0,0 +1,86 @@
+const os = require('os');
+const chalk = require('chalk');
+const imagemin = require('imagemin');
+const plur = require('plur');
+const prettyBytes = require('pretty-bytes');
+const pMap = require('p-map');
+
+const defaultPlugins = ['gifsicle', 'jpegtran', 'optipng', 'svgo'];
+
+const loadPlugin = (grunt, plugin, opts) => {
+	try {
+		return require(`imagemin-${plugin}`)(opts);
+	} catch (error) {
+		grunt.warn(`Couldn't load default plugin "${plugin}"`);
+	}
+};
+
+const getDefaultPlugins = (grunt, opts) => defaultPlugins.reduce((plugins, plugin) => {
+	const instance = loadPlugin(grunt, plugin, opts);
+
+	if (!instance) {
+		return plugins;
+	}
+
+	return plugins.concat(instance);
+}, []);
+
+module.exports = grunt => {
+	grunt.registerMultiTask('imagemin', 'Minify PNG, JPEG, GIF and SVG images', function () {
+		const done = this.async();
+		const options = this.options({
+			interlaced: true,
+			optimizationLevel: 3,
+			progressive: true,
+			concurrency: os.cpus().length
+		});
+
+		if (Array.isArray(options.svgoPlugins)) {
+			options.plugins = options.svgoPlugins;
+		}
+
+		const plugins = options.use || getDefaultPlugins(grunt, options);
+
+		let totalBytes = 0;
+		let totalSavedBytes = 0;
+		let totalFiles = 0;
+
+		const processFile = file => Promise.resolve(grunt.file.read(file.src[0], {encoding: null}))
+			.then(buf => Promise.all([imagemin.buffer(buf, {plugins}), buf]))
+			.then(res => {
+				// TODO: Use destructuring when targeting Node.js 6
+				const optimizedBuf = res[0];
+				const originalBuf = res[1];
+				const originalSize = originalBuf.length;
+				const optimizedSize = optimizedBuf.length;
+				const saved = originalSize - optimizedSize;
+				const percent = originalSize > 0 ? (saved / originalSize) * 100 : 0;
+				const savedMsg = `saved ${prettyBytes(saved)} - ${percent.toFixed(1).replace(/\.0$/, '')}%`;
+				const msg = saved > 0 ? savedMsg : 'already optimized';
+
+				if (saved > 0) {
+					totalBytes += originalSize;
+					totalSavedBytes += saved;
+					totalFiles++;
+				}
+
+				grunt.file.write(file.dest, optimizedBuf);
+				grunt.verbose.writeln(chalk.green('✔ ') + file.src[0] + chalk.gray(` (${msg})`));
+			})
+			.catch(error => {
+				grunt.warn(`${error} in file ${file.src[0]}`);
+			});
+
+		pMap(this.files, processFile, {concurrency: options.concurrency}).then(() => {
+			const percent = totalBytes > 0 ? (totalSavedBytes / totalBytes) * 100 : 0;
+			let msg = `Minified ${totalFiles} ${plur('image', totalFiles)}`;
+
+			if (totalFiles > 0) {
+				msg += chalk.gray(` (saved ${prettyBytes(totalSavedBytes)} - ${percent.toFixed(1).replace(/\.0$/, '')}%)`);
+			}
+
+			grunt.log.writeln(msg);
+			done();
+		});
+	});
+};