Method createSnapshot

lib/FileSystemInfo.js:2462–2966

* Creates a snapshot. * @param {number | null | undefined} startTime when processing the files has started * @param {Iterable<string> | null | undefined} files all files * @param {Iterable<string> | null | undefined} directories all directories * @param {Iterable<string> | null | undefined}

(startTime, files, directories, missing, options, callback)

	 * @returns {void}
	 */
	createSnapshot(startTime, files, directories, missing, options, callback) {
		/** @type {FileTimestamps} */
		const fileTimestamps = new Map();
		/** @type {FileHashes} */
		const fileHashes = new Map();
		/** @type {FileTshs} */
		const fileTshs = new Map();
		/** @type {ContextTimestamps} */
		const contextTimestamps = new Map();
		/** @type {ContextHashes} */
		const contextHashes = new Map();
		/** @type {ContextTshs} */
		const contextTshs = new Map();
		/** @type {MissingExistence} */
		const missingExistence = new Map();
		/** @type {ManagedItemInfo} */
		const managedItemInfo = new Map();
		/** @type {ManagedFiles} */
		const managedFiles = new Set();
		/** @type {ManagedContexts} */
		const managedContexts = new Set();
		/** @type {ManagedMissing} */
		const managedMissing = new Set();
		/** @type {Children} */
		const children = new Set();

		const snapshot = new Snapshot();
		if (startTime) snapshot.setStartTime(startTime);

		/** @type {Set<string>} */
		const managedItems = new Set();

		/** 1 = timestamp, 2 = hash, 3 = timestamp + hash */
		const mode = options && options.hash ? (options.timestamp ? 3 : 2) : 1;

		let jobs = 1;
		const jobDone = () => {
			if (--jobs === 0) {
				if (fileTimestamps.size !== 0) {
					snapshot.setFileTimestamps(fileTimestamps);
				}
				if (fileHashes.size !== 0) {
					snapshot.setFileHashes(fileHashes);
				}
				if (fileTshs.size !== 0) {
					snapshot.setFileTshs(fileTshs);
				}
				if (contextTimestamps.size !== 0) {
					snapshot.setContextTimestamps(contextTimestamps);
				}
				if (contextHashes.size !== 0) {
					snapshot.setContextHashes(contextHashes);
				}
				if (contextTshs.size !== 0) {
					snapshot.setContextTshs(contextTshs);
				}
				if (missingExistence.size !== 0) {
					snapshot.setMissingExistence(missingExistence);