@cocalc/project/dist/dedicated-disks.js

CoCalc: project daemon

"use strict";
/*
 *  This file is part of CoCalc: Copyright © 2021 Sagemath, Inc.
 *  License: AGPLv3 s.t. "Commons Clause" – see LICENSE.md for details
 */
Object.defineProperty(exports, "__esModule", { value: true });
exports.init = void 0;
/*
This makes dedicated disks conveniently available from the $HOME directory – a kucalc-only functionality.
*/
const dedicated_1 = require("@cocalc/util/consts/dedicated");
const fs_1 = require("fs");
const lodash_1 = require("lodash");
const os_1 = require("os");
const path_1 = require("path");
const logger_1 = require("./logger");
const project_setup_1 = require("./project-setup");
const { F_OK, W_OK, R_OK } = fs_1.constants;
const { info, warn } = (0, logger_1.getLogger)("dedicated-disks");
async function ensureSymlink(name) {
    const disk = (0, path_1.join)(dedicated_1.ROOT, name);
    const link = (0, path_1.join)((0, os_1.homedir)(), dedicated_1.HOME_PREFIX);
    try {
        await fs_1.promises.access(disk, F_OK | R_OK | W_OK);
    }
    catch {
        warn(`disk directory ${disk} not writeable -- abort`);
        return false;
    }
    // create a symlink to the /local directory
    // don't disturb what's already in $HOME
    try {
        await fs_1.promises.access(link, F_OK);
        info(`'${link}' already exists`);
    }
    catch {
        // link does not exist, hence we create it
        try {
            await fs_1.promises.symlink(dedicated_1.ROOT, link);
            info(`successfully symlinked ${link} → ${disk}`);
        }
        catch (err) {
            warn(`problem symlinking ${link} → ${disk} -- ${err}`);
        }
    }
    // even if there is a problem, it makes no sense to try again
    return true;
}
async function init() {
    info("initializing");
    const conf = (0, project_setup_1.getProjectConfig)();
    // we're a bit extra careful, because there could be anything in the DB
    if (conf?.quota?.dedicated_disks == null)
        return;
    if (!(0, lodash_1.isArray)(conf.quota.dedicated_disks))
        return;
    for (const disk of conf.quota.dedicated_disks) {
        if (typeof disk.name === "string") {
            // if there is a disk, a symlink is made to point to the directory where it is
            // hence it is enough to link to it once
            if (await ensureSymlink(disk.name)) {
                return;
            }
        }
    }
}
exports.init = init;
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