snapshot-fs/dist/commonjs/snapshot.js

Create a filesystem snapshot for use with memfs

"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.DEFAULT_MEMFS_ROOT = void 0;
exports.createCBORSnapshot = createCBORSnapshot;
exports.createCJSONSnapshot = createCJSONSnapshot;
exports.createJSONSnapshot = createJSONSnapshot;
const json_stable_stringify_1 = __importDefault(require("json-stable-stringify"));
const memfs_1 = require("memfs");
const index_js_1 = require("memfs/lib/snapshot/index.js");
const node_fs_1 = __importDefault(require("node:fs"));
const read_js_1 = require("./read.js");
/**
 * All files will be relative to this path in the output
 * {@link memfs DirectoryJSON} object
 */
exports.DEFAULT_MEMFS_ROOT = '/';
/**
 * Creates a CBOR snapshot from the `from` path using the filesystem API `fs`.
 *
 * @param opts Options for creating the snapshot
 * @returns A promise that resolves to the snapshot
 */
async function createCBORSnapshot({ fs, source: path = process.cwd(), } = {}) {
    const snapshot = await (0, index_js_1.toBinarySnapshot)({
        // eslint-disable-next-line @typescript-eslint/no-unsafe-assignment
        fs: fs ? fs.promises : node_fs_1.default.promises,
        path,
    });
    return snapshot;
}
/**
 * Creates a CJSON snapshot from the `from` path using the filesystem API `fs`.
 *
 * @param opts Options for creating the snapshot
 * @returns A promise that resolves to the snapshot
 */
async function createCJSONSnapshot({ fs, separator, source: path = process.cwd(), } = {}) {
    const snapshot = await (0, index_js_1.toJsonSnapshot)({
        // eslint-disable-next-line @typescript-eslint/no-unsafe-assignment
        fs: fs ? fs.promises : node_fs_1.default.promises,
        path,
        separator,
    });
    return snapshot;
}
/**
 * Creates a CJSON snapshot from the `from` path using the filesystem API `fs`.
 *
 * @param opts Options for creating the snapshot
 * @returns A promise that resolves to the snapshot
 */
async function createJSONSnapshot({ fs, separator, source: path = process.cwd(), } = {}) {
    const { vol } = (0, memfs_1.memfs)();
    const tempSnapshot = await (0, index_js_1.toBinarySnapshot)({
        // eslint-disable-next-line @typescript-eslint/no-unsafe-assignment
        fs: fs ? fs.promises : node_fs_1.default.promises,
        path,
        separator,
    });
    await (0, read_js_1.readSnapshot)(read_js_1.CBOR_KIND, tempSnapshot, { fs: vol, separator });
    const snapshot = (0, json_stable_stringify_1.default)(vol.toJSON());
    /* c8 ignore next */
    if (snapshot === undefined) {
        throw new Error('Snapshot is empty!');
    }
    return snapshot;
}
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