first commit

app_vue/node_modules/gzip-size/index.js

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+'use strict';
+const fs = require('fs');
+const stream = require('stream');
+const zlib = require('zlib');
+const {promisify} = require('util');
+const duplexer = require('duplexer');
+
+const getOptions = options => ({level: 9, ...options});
+const gzip = promisify(zlib.gzip);
+
+module.exports = async (input, options) => {
+	if (!input) {
+		return 0;
+	}
+
+	const data = await gzip(input, getOptions(options));
+	return data.length;
+};
+
+module.exports.sync = (input, options) => zlib.gzipSync(input, getOptions(options)).length;
+
+module.exports.stream = options => {
+	const input = new stream.PassThrough();
+	const output = new stream.PassThrough();
+	const wrapper = duplexer(input, output);
+
+	let gzipSize = 0;
+	const gzip = zlib.createGzip(getOptions(options))
+		.on('data', buf => {
+			gzipSize += buf.length;
+		})
+		.on('error', () => {
+			wrapper.gzipSize = 0;
+		})
+		.on('end', () => {
+			wrapper.gzipSize = gzipSize;
+			wrapper.emit('gzip-size', gzipSize);
+			output.end();
+		});
+
+	input.pipe(gzip);
+	input.pipe(output, {end: false});
+
+	return wrapper;
+};
+
+module.exports.file = (path, options) => {
+	return new Promise((resolve, reject) => {
+		const stream = fs.createReadStream(path);
+		stream.on('error', reject);
+
+		const gzipStream = stream.pipe(module.exports.stream(options));
+		gzipStream.on('error', reject);
+		gzipStream.on('gzip-size', resolve);
+	});
+};
+
+module.exports.fileSync = (path, options) => module.exports.sync(fs.readFileSync(path), options);