Replace minimist, convert build scripts to ES modules + misc refactoring

app/src/main.ts

@@ -1,64 +1,55 @@
 "use strict";
 
-import path from "path";
-import minimist from "minimist";
-import { __applicationVersion } from "../package.json";
+import yargs from "yargs";
+import { applicationName, applicationVersion } from "../config.json";
 
-const argv = minimist(process.argv.slice(2), {
-    boolean: ["daemon", "help", "version"],
-    string: ["__name", "host", "port", "password"],
-    alias: {
-        d: "daemon",
-        h: "help",
-        v: "version",
-        n: "host",
-        p: "port",
-        P: "password"
-    },
-    default: {
-        __name: path.basename(process.argv[0]),
-        daemon: false,
-        host: "localhost",
-        port: "9556"
-    }
-});
+const argv = yargs()
+    .scriptName(applicationName)
+    .usage("$0 [args]")
+    .help()
+    .alias("help", "h")
+    .version(`v${applicationVersion}`)
+    .alias("version", "v")
+    .option("daemon", {
+        alias: "d",
+        describe: `Launch in daemon mode. This starts a WebSocket server that \
+the extension can be configured to connect to under bridge options.`,
+        type: "boolean"
+    })
+    .option("host", {
+        alias: "n",
+        describe: `Host for daemon WebSocket server. This must match the host \
+set in the extension options.`,
+        default: "localhost"
+    })
+    .option("port", {
+        alias: "p",
+        describe: `Port number for daemon WebSocket server. This must match \
+the port set in the extension options.`,
+        default: 9556
+    })
+    .option("password", {
+        alias: "P",
+        describe: `Set an optional password for the daemon WebSocket server. \
+This must match the password set in the extension options.
+WARNING: This password is intended only as a basic access control measure and \
+is transmitted in plain text even over remote connections!`,
+        type: "string"
+    })
+    .check(argv => {
+        if (argv.port < 1025 || argv.port > 65535) {
+            throw new Error("Invalid port specified!");
+        }
 
-if (argv.version) {
-    // eslint-disable-next-line no-console
-    console.log(`v${__applicationVersion}`);
-} else if (argv.help) {
-    // eslint-disable-next-line no-console
-    console.log(
-        `Usage: ${argv.__name} [options]
-
-Options:
-  -h, --help       Print usage info
-  -v, --version    Print version info
-  -d, --daemon     Launch in daemon mode. This starts a WebSocket server that
-                     the extension can be configured to connect to under bridge
-                     options.
-  -n, --host       Host for daemon WebSocket server. This must match the host
-                     set in the extension options.
-  -p, --port       Port number for daemon WebSocket server. This must match the
-                     port set in the extension options.
-  -P, --password   Set an optional password for the daemon WebSocket server.
-                     This must match the password set in the extension options.
-                     WARNING: This password is intended only as a basic access
-                     control measure and is transmitted in plain text even over
-                     remote connections!
-`
-    );
-} else if (argv.daemon) {
-    const port = parseInt(argv.port);
-    if (!port || port < 1025 || port > 65535) {
-        console.error("Invalid port specified!");
-        process.exit(1);
-    }
+        return true;
+    })
+    .parseSync(process.argv);
 
+if (argv.daemon) {
     import("./daemon").then(daemon => {
         daemon.init({
             host: argv.host,
-            port,
+            port: argv.port,
             password: argv.password
         });
     });