feat: add simple list command

src/commands/list.ts

@@ -0,0 +1,19 @@
+import * as lowdb from 'lowdb';
+
+import { dbData } from './install.js';
+
+export default class List {
+	public async run(): Promise<void> {
+		const dbFile = '/var/lib/wahpkg/pkgs.json';
+		const adapter = new lowdb.JSONFile<dbData>(dbFile);
+		const db = new lowdb.Low(adapter);
+
+		await db.read();
+
+		for (const pkg of db.data.pkgs) {
+			console.log(`${pkg.name} ${pkg.version}`);
+		}
+
+		process.exit(0);
+	}
+}

src/index.ts

@@ -3,6 +3,7 @@ import { Command } from 'commander';
 import fs from 'node:fs';
 
 import Install, { InstallOptions } from './commands/install.js';
+import List from './commands/list.js';
 import Uninstall, { UninstallOptions } from './commands/uninstall.js';
 
 if (process.getuid() !== 0) {
@@ -43,4 +44,10 @@ program.command('uninstall')
 		await new Uninstall(name, options).run();
 	});
 
+program.command('list')
+	.description('List installed packages')
+	.action(async () => {
+		await new List().run();
+	});
+
 program.parse();