@cocalc/project/dist/jupyter/kernel-data.js

CoCalc: project daemon

"use strict";
/*
 *  This file is part of CoCalc: Copyright © 2020 Sagemath, Inc.
 *  License: AGPLv3 s.t. "Commons Clause" – see LICENSE.md for details
 */
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.get_kernel_data = void 0;
/*
Use nteracts kernelspecs module to get data about all installed Jupyter kernels.

The result is cached for 5s to avoid wasted effort in case of a flurry of calls.

Specs: https://jupyter-client.readthedocs.io/en/stable/kernels.html#kernel-specs
*/
const kernelspecs_1 = require("kernelspecs");
const misc_1 = require("@cocalc/util/misc");
const lru_cache_1 = __importDefault(require("lru-cache"));
const cache = new lru_cache_1.default({ maxAge: 5000 });
async function get_kernel_data() {
    let kernel_data = cache.get("kernel_data");
    if (kernel_data != null) {
        return kernel_data;
    }
    const ks = await (0, kernelspecs_1.findAll)();
    kernel_data = { kernelspecs: ks };
    const v = [];
    for (const kernel in kernel_data.kernelspecs) {
        const value = kernel_data.kernelspecs[kernel];
        v.push({
            name: kernel,
            display_name: value.spec.display_name,
            language: value.spec.language,
            interrupt_mode: value.spec.interrupt_mode,
            env: value.spec.env,
            metadata: value.spec.metadata,
            // kernelspecs incorrectly calls it resources_dir instead of resource_dir.
            // See https://github.com/nteract/kernelspecs/issues/25
            resource_dir: value.resource_dir ?? value.resources_dir,
        });
    }
    v.sort((0, misc_1.field_cmp)("display_name"));
    cache.set("kernel_data", v);
    return v;
}
exports.get_kernel_data = get_kernel_data;
//# sourceMappingURL=kernel-data.js.map