feat: add envinfo as webpack-cli info command

.github/ISSUE_TEMPLATE.md

@@ -12,4 +12,4 @@
 
 **If this is a feature request, what is motivation or use case for changing the behavior?**
 
-**Please mention other relevant information such as the browser version, Node.js version, Operating System and programming language.**
+**Please paste the results of `webpack-cli info` here, and mention other relevant information such as programming language.**

bin/webpack.js

@@ -30,7 +30,8 @@
 		*/
 		"serve",
 		"generate-loader",
-		"generate-plugin"
+		"generate-plugin",
+		"info"
 	];
 
 	const NON_COMPILATION_CMD = process.argv.find(arg => {

lib/commands/info.js

@@ -0,0 +1,19 @@
+"use strict";
+
+const envinfo = require("envinfo");
+
+/**
+ * Prints debugging information for webpack issue reporting
+ */
+
+module.exports = function info() {
+	console.log(
+		envinfo.run({
+			System: ["OS", "CPU"],
+			Binaries: ["Node", "Yarn", "npm"],
+			Browsers: ["Chrome", "Firefox", "Safari"],
+			npmPackages: "*webpack*",
+			npmGlobalPackages: ["webpack", "webpack-cli"],
+		})
+	);
+};

lib/index.js

@@ -53,6 +53,9 @@ module.exports = function initialize(command, args) {
 		case "generate-plugin": {
 			return require("./generate-plugin/index.js")();
 		}
+		case "info": {
+			return require("./commands/info.js")();
+		}
 		default: {
 			throw new Error(`Unknown command ${command} found`);
 		}

package.json

@@ -84,6 +84,7 @@
     "cross-spawn": "^6.0.5",
     "diff": "^3.5.0",
     "enhanced-resolve": "^4.0.0",
+    "envinfo": "^4.4.2",
     "glob-all": "^3.1.0",
     "global-modules": "^1.0.0",
     "got": "^8.2.0",