@beyond-js/bundles-sdk/processor/base/analyzer/_older/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 'processor.analyzer.hash';
	}

	#analyzer;
	get analyzer() {
		return this.#analyzer;
	}

	constructor(analyzer) {
		super();
		this.#analyzer = analyzer;

		const events = ['item.initialised', 'item.change'];
		const { processor } = analyzer;
		const { files, overwrites, extensions } = processor.sources;
		const children = [
			['files', { child: files, events }],
			['extensions', { child: extensions, events }],
		];
		overwrites && children.push(['overwrites', { child: overwrites, events }]);
		super.setup(new Map(children));
	}

	#value;
	get value() {
		return this.#value;
	}

	_prepared(check) {
		const { files, overwrites } = this.#analyzer.processor.sources;
		files.forEach(source => check(source));
		overwrites?.forEach(source => check(source));
	}

	_process() {
		const { files, overwrites, extensions } = this.#analyzer.processor.sources;
		const compute = {};
		files.forEach(source => (compute[source.file] = source.hash));
		overwrites?.forEach(source => (compute[source.file] = source.hash));
		extensions.forEach(source => (compute[source.file] = source.hash));

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