Dependency Update Command

commands/util/dependency-update.js

@@ -0,0 +1,68 @@
+const Command = require('../../structures/Command');
+const request = require('node-superfetch');
+const semver = require('semver');
+const { stripIndents } = require('common-tags');
+const { dependencies, devDependencies } = require('../../package');
+
+module.exports = class DependencyUpdateCommand extends Command {
+	constructor(client) {
+		super(client, {
+			name: 'dependency-update',
+			aliases: ['dep-update', 'dependencies-update', 'npm-update'],
+			group: 'util',
+			memberName: 'dependency-update',
+			description: 'Checks for dependency updates.',
+			details: 'Only the bot owner(s) may use this command.',
+			ownerOnly: true,
+			guarded: true,
+			credit: [
+				{
+					name: 'npm',
+					url: 'https://www.npmjs.com/',
+					reason: 'API'
+				}
+			]
+		});
+	}
+
+	async run(msg) {
+		const needUpdate = [];
+		for (const [dep, ver] of Object.entries(dependencies)) {
+			const latest = this.fetchVersion(dep);
+			const clean = semver.clean(ver);
+			if (latest === clean) continue;
+			needUpdate.push({
+				name: dep,
+				oldVer: clean,
+				newVer: latest,
+				breaking: !semver.satisfies(clean, latest)
+			});
+		}
+		for (const [dep, ver] of Object.entries(devDependencies)) {
+			const latest = this.fetchVersion(dep);
+			const clean = semver.clean(ver);
+			if (latest === clean) continue;
+			needUpdate.push({
+				name: dep,
+				oldVer: clean,
+				newVer: latest,
+				breaking: !semver.satisfies(clean, latest)
+			});
+		}
+		if (!needUpdate.length) return msg.say('All packages are up to date.');
+		const updatesList = needUpdate.map(pkg => {
+			const breaking = pkg.breaking ? ' ⚠️' : '';
+			return `${pkg.name} (${pkg.oldVer} -> ${pkg.newVer})${breaking}`;
+		});
+		return msg.say(stripIndents`
+			__**Package Updates Available:**__
+			${updatesList.join('\n')}
+		`);
+	}
+
+	async fetchVersion(dependency) {
+		const { body } = await request.get(`https://registry.npmjs.com/${dependency}`);
+		if (body.time.unpublished) return null;
+		return body.versions[body['dist-tags'].latest];
+	}
+};