Add 'lan' option (modify the option name to ‘useLocalIp’ for more sem…

…antic) (#901)

* Add 'lan' option

  Let the browser open with local IP.

* Add 'lan' option

  Let the browser open with local IP.

* extract function getLocalIP and add some tests.

* Change the option name to 'useLocalIp' and use 'internal-ip' to get local ip.

* Fix confilcts.

bin/webpack-dev-server.js

@@ -96,6 +96,10 @@ yargs.options({
 		type: "boolean",
 		describe: "Open default browser"
 	},
+	"useLocalIp": {
+		type: "boolean",
+		describe: "Open default browser with local IP"
+	},
 	"open-page": {
 		type: "string",
 		describe: "Open default browser with the specified page",
@@ -330,6 +334,9 @@ function processOptions(wpOpt) {
 		options.openPage = argv["open-page"] || "";
 	}
 
+	if(argv["useLocalIp"])
+		options.useLocalIp = true;
+
 	// Kind of weird, but ensures prior behavior isn't broken in cases
 	// that wouldn't throw errors. E.g. both argv.port and options.port
 	// were specified, but since argv.port is 8080, options.port will be

lib/optionsSchema.json

@@ -199,6 +199,10 @@
       "description": "Let the CLI open your browser.",
       "type": "boolean"
     },
+    "useLocalIp": {
+      "description": "Let the browser open with your local IP.",
+      "type": "boolean"
+    },
     "openPage": {
       "description": "Let the CLI open your browser to a specific page on the site.",
       "type": "string"

lib/util/createDomain.js

@@ -1,13 +1,14 @@
 "use strict";
 const url = require("url");
+const internalIp = require("internal-ip");
 
 module.exports = function createDomain(options) {
 	const protocol = options.https ? "https" : "http";
 
 	// the formatted domain (url without path) of the webpack server
 	return options.public ? `${protocol}://${options.public}` : url.format({
 		protocol: protocol,
-		hostname: options.host,
+		hostname: options.useLocalIp ? internalIp.v4() : options.host,
 		port: options.socket ? 0 : options.port.toString()
 	});
 };

package.json

@@ -16,6 +16,7 @@
     "express": "^4.13.3",
     "html-entities": "^1.2.0",
     "http-proxy-middleware": "~0.17.4",
+    "internal-ip": "^1.2.0",
     "opn": "4.0.2",
     "portfinder": "^1.0.9",
     "selfsigned": "^1.9.1",

test/Validation.test.js

@@ -50,7 +50,7 @@ describe("Validation", function() {
 			" - configuration has an unknown property 'asdf'. These properties are valid:",
 			"   object { hot?, hotOnly?, lazy?, bonjour?, host?, allowedHosts?, filename?, publicPath?, port?, socket?, " +
 			"watchOptions?, headers?, clientLogLevel?, overlay?, key?, cert?, ca?, pfx?, pfxPassphrase?, " +
-			"inline?, disableHostCheck?, public?, https?, contentBase?, watchContentBase?, open?, openPage?, features?, " +
+			"inline?, disableHostCheck?, public?, https?, contentBase?, watchContentBase?, open?, useLocalIp?, openPage?, features?, " +
 			"compress?, proxy?, historyApiFallback?, staticOptions?, setup?, stats?, reporter?, " +
 			"noInfo?, quiet?, serverSideRender?, index?, log?, warn? }"
 		]