renovate/dist/util/cache/package/decorator.js

Automated dependency updates. Flexible so you don't need to be.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.cache = cache;
const tslib_1 = require("tslib");
const is_1 = tslib_1.__importDefault(require("@sindresorhus/is"));
const luxon_1 = require("luxon");
const global_1 = require("../../../config/global");
const logger_1 = require("../../../logger");
const decorator_1 = require("../../decorator");
const mutex_1 = require("../../mutex");
const ttl_1 = require("./ttl");
const packageCache = tslib_1.__importStar(require("."));
/**
 * caches the result of a decorated method.
 */
function cache({ namespace, key, cacheable = () => true, ttlMinutes = 30, }) {
    return (0, decorator_1.decorate)(async ({ args, instance, callback, methodName }) => {
        const cachePrivatePackages = global_1.GlobalConfig.get('cachePrivatePackages', false);
        const isCacheable = cachePrivatePackages || cacheable.apply(instance, args);
        if (!isCacheable) {
            return callback();
        }
        let finalNamespace;
        if (is_1.default.string(namespace)) {
            finalNamespace = namespace;
        }
        else if (is_1.default.function(namespace)) {
            finalNamespace = namespace.apply(instance, args);
        }
        let finalKey;
        if (is_1.default.string(key)) {
            finalKey = key;
        }
        else if (is_1.default.function(key)) {
            finalKey = key.apply(instance, args);
        }
        // istanbul ignore if
        if (!finalNamespace || !finalKey) {
            return callback();
        }
        finalKey = `cache-decorator:${finalKey}`;
        // prevent concurrent processing and cache writes
        const releaseLock = await (0, mutex_1.acquireLock)(finalKey, finalNamespace);
        try {
            const oldRecord = await packageCache.get(finalNamespace, finalKey);
            const ttlValues = (0, ttl_1.resolveTtlValues)(finalNamespace, ttlMinutes);
            const softTtl = ttlValues.softTtlMinutes;
            const hardTtl = methodName === 'getReleases' || methodName === 'getDigest'
                ? ttlValues.hardTtlMinutes
                : // Skip two-tier TTL for any intermediate data fetching
                    softTtl;
            let oldData;
            if (oldRecord) {
                const now = luxon_1.DateTime.local();
                const cachedAt = luxon_1.DateTime.fromISO(oldRecord.cachedAt);
                const softDeadline = cachedAt.plus({ minutes: softTtl });
                if (now < softDeadline) {
                    return oldRecord.value;
                }
                const hardDeadline = cachedAt.plus({ minutes: hardTtl });
                if (now < hardDeadline) {
                    oldData = oldRecord.value;
                }
            }
            let newData;
            if (oldData) {
                try {
                    newData = (await callback());
                }
                catch (err) {
                    logger_1.logger.debug({ err }, 'Package cache decorator: callback error, returning old data');
                    return oldData;
                }
            }
            else {
                newData = (await callback());
            }
            if (!is_1.default.undefined(newData)) {
                const newRecord = {
                    cachedAt: luxon_1.DateTime.local().toISO(),
                    value: newData,
                };
                await packageCache.set(finalNamespace, finalKey, newRecord, hardTtl);
            }
            return newData;
        }
        finally {
            releaseLock();
        }
    });
}
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