@beyond-js/bundles-sdk/transversal/packager/bundles/hash/index.js

BeyondJS Bundles SDK

const DynamicProcessor = require('@beyond-js/dynamic-processor')();
const equal = require('@beyond-js/equal');
const crc32 = require('@beyond-js/crc32');

module.exports = class extends DynamicProcessor {
	get dp() {
		return 'bundler.transversal.packager.hash';
	}

	// The transversal packager
	#value;
	get value() {
		return this.#value;
	}

	/**
	 * Transversal packager hash constructor
	 *
	 * @param packagers {object} The packagers of the modules and libraries of the application
	 */
	constructor(packagers) {
		super();
		super.setup(new Map([['packagers', { child: packagers }]]));
	}

	_prepared(require) {
		const packagers = this.children.get('packagers').child;
		packagers.forEach(packager => require(packager.hash));
	}

	_process() {
		const packagers = this.children.get('packagers').child;
		const hashes = {};
		packagers.forEach((packager, path) => (hashes[path] = packager.hash.value));

		const value = crc32(equal.generate(hashes));
		const changed = value !== this.#value;
		this.#value = value;
		return changed;
	}
};