cross-process-lock/unlock.js

Cross-process file locking solution with lock-queue

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.unlock = unlock;
const tslib_1 = require("tslib");
const node_fs_1 = require("node:fs");
const logger_1 = require("./logger");
const metadata_1 = require("./metadata");
/**
 * Releases the cross-process lock for the given file, for the actual process.
 *
 * @param file The path of the file to lock.
 * @returns
 */
function unlock(file) {
    return tslib_1.__awaiter(this, void 0, void 0, function* () {
        (0, logger_1.logger)("unlock file:%s", file);
        const lockFile = `${file}.lock`;
        if (!(0, node_fs_1.existsSync)(lockFile)) {
            (0, logger_1.logger)("unlock lock file does not exist");
            return;
        }
        const metadata = yield (0, metadata_1.readMetadata)(lockFile);
        if (!metadata || metadata.pID === process.pid) {
            try {
                (0, node_fs_1.unlinkSync)(lockFile);
            }
            catch (e) {
                (0, logger_1.logger)("unlock error during deleting lock file:%s", e);
            }
        }
        else {
            (0, logger_1.logger)("unlock foreign lock file");
        }
    });
}
//# sourceMappingURL=unlock.js.map