esbuild.js

const esbuild = require("esbuild");
const fs = require("node:fs");
const path = require("node:path");

const production = process.argv.includes('--production');
const watch = process.argv.includes('--watch');

function copyDirRecursiveSync(src, dest) {
	if (!fs.existsSync(dest)) {
		fs.mkdirSync(dest, { recursive: true });
	}

	const entries = fs.readdirSync(src, { withFileTypes: true });

	for (const entry of entries) {
		const srcPath = path.join(src, entry.name);
		const destPath = path.join(dest, entry.name);

		if (entry.isDirectory()) {
			copyDirRecursiveSync(srcPath, destPath);
		} else {
			fs.copyFileSync(srcPath, destPath);
		}
	}
}

/**
 * @type {import('esbuild').Plugin}
 */
const esbuildProblemMatcherPlugin = {
	name: 'esbuild-problem-matcher',

	setup(build) {
		build.onStart(() => {
		});
		build.onEnd((result) => {
			for (const { text, location } of result.errors) {
				console.error(`✘ [ERROR] ${text}`);
				console.error(`    ${location.file}:${location.line}:${location.column}:`);
			}
		});
	},
};

async function main() {
	const ctx = await esbuild.context({
		entryPoints: [
			'src/extension.ts'
		],
		bundle: true,
		format: 'cjs',
		minify: production,
		sourcemap: !production,
		sourcesContent: false,
		platform: 'node',
		outfile: 'dist/extension.js',
		external: ['vscode'],
		logLevel: 'silent',
		plugins: [
			/* add to the end of plugins array */
			esbuildProblemMatcherPlugin,
		],
	});

	const templatesSource = path.join(__dirname, 'src', 'templates');
	const templatesDest = path.join(__dirname, 'dist', 'templates');
	copyDirRecursiveSync(templatesSource, templatesDest);

	if (watch) {
		await ctx.watch();
	} else {
		await ctx.rebuild();
		await ctx.dispose();
	}
}

main().catch(e => {
	console.error(e);
	process.exit(1);
});