Initial commit

frontend/webapp/node_modules/next/dist/server/response-cache/index.js

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+"use strict";
+Object.defineProperty(exports, "__esModule", {
+    value: true
+});
+Object.defineProperty(exports, "default", {
+    enumerable: true,
+    get: function() {
+        return ResponseCache;
+    }
+});
+0 && __export(require("./types"));
+const _batcher = require("../../lib/batcher");
+const _scheduler = require("../../lib/scheduler");
+const _utils = require("./utils");
+_export_star(require("./types"), exports);
+function _export_star(from, to) {
+    Object.keys(from).forEach(function(k) {
+        if (k !== "default" && !Object.prototype.hasOwnProperty.call(to, k)) {
+            Object.defineProperty(to, k, {
+                enumerable: true,
+                get: function() {
+                    return from[k];
+                }
+            });
+        }
+    });
+    return from;
+}
+class ResponseCache {
+    constructor(minimalMode){
+        this.batcher = _batcher.Batcher.create({
+            // Ensure on-demand revalidate doesn't block normal requests, it should be
+            // safe to run an on-demand revalidate for the same key as a normal request.
+            cacheKeyFn: ({ key, isOnDemandRevalidate })=>`${key}-${isOnDemandRevalidate ? '1' : '0'}`,
+            // We wait to do any async work until after we've added our promise to
+            // `pendingResponses` to ensure that any any other calls will reuse the
+            // same promise until we've fully finished our work.
+            schedulerFn: _scheduler.scheduleOnNextTick
+        });
+        // this is a hack to avoid Webpack knowing this is equal to this.minimalMode
+        // because we replace this.minimalMode to true in production bundles.
+        const minimalModeKey = 'minimalMode';
+        this[minimalModeKey] = minimalMode;
+    }
+    async get(key, responseGenerator, context) {
+        // If there is no key for the cache, we can't possibly look this up in the
+        // cache so just return the result of the response generator.
+        if (!key) {
+            return responseGenerator({
+                hasResolved: false,
+                previousCacheEntry: null
+            });
+        }
+        const { incrementalCache, isOnDemandRevalidate = false, isFallback = false, isRoutePPREnabled = false } = context;
+        const response = await this.batcher.batch({
+            key,
+            isOnDemandRevalidate
+        }, async (cacheKey, resolve)=>{
+            var _this_previousCacheItem;
+            // We keep the previous cache entry around to leverage when the
+            // incremental cache is disabled in minimal mode.
+            if (this.minimalMode && ((_this_previousCacheItem = this.previousCacheItem) == null ? void 0 : _this_previousCacheItem.key) === cacheKey && this.previousCacheItem.expiresAt > Date.now()) {
+                return this.previousCacheItem.entry;
+            }
+            // Coerce the kindHint into a given kind for the incremental cache.
+            const kind = (0, _utils.routeKindToIncrementalCacheKind)(context.routeKind);
+            let resolved = false;
+            let cachedResponse = null;
+            try {
+                cachedResponse = !this.minimalMode ? await incrementalCache.get(key, {
+                    kind,
+                    isRoutePPREnabled: context.isRoutePPREnabled,
+                    isFallback
+                }) : null;
+                if (cachedResponse && !isOnDemandRevalidate) {
+                    resolve(cachedResponse);
+                    resolved = true;
+                    if (!cachedResponse.isStale || context.isPrefetch) {
+                        // The cached value is still valid, so we don't need
+                        // to update it yet.
+                        return null;
+                    }
+                }
+                const cacheEntry = await responseGenerator({
+                    hasResolved: resolved,
+                    previousCacheEntry: cachedResponse,
+                    isRevalidating: true
+                });
+                // If the cache entry couldn't be generated, we don't want to cache
+                // the result.
+                if (!cacheEntry) {
+                    // Unset the previous cache item if it was set.
+                    if (this.minimalMode) this.previousCacheItem = undefined;
+                    return null;
+                }
+                const resolveValue = await (0, _utils.fromResponseCacheEntry)({
+                    ...cacheEntry,
+                    isMiss: !cachedResponse
+                });
+                if (!resolveValue) {
+                    // Unset the previous cache item if it was set.
+                    if (this.minimalMode) this.previousCacheItem = undefined;
+                    return null;
+                }
+                // For on-demand revalidate wait to resolve until cache is set.
+                // Otherwise resolve now.
+                if (!isOnDemandRevalidate && !resolved) {
+                    resolve(resolveValue);
+                    resolved = true;
+                }
+                // We want to persist the result only if it has a cache control value
+                // defined.
+                if (resolveValue.cacheControl) {
+                    if (this.minimalMode) {
+                        this.previousCacheItem = {
+                            key: cacheKey,
+                            entry: resolveValue,
+                            expiresAt: Date.now() + 1000
+                        };
+                    } else {
+                        await incrementalCache.set(key, resolveValue.value, {
+                            cacheControl: resolveValue.cacheControl,
+                            isRoutePPREnabled,
+                            isFallback
+                        });
+                    }
+                }
+                return resolveValue;
+            } catch (err) {
+                // When a path is erroring we automatically re-set the existing cache
+                // with new revalidate and expire times to prevent non-stop retrying.
+                if (cachedResponse == null ? void 0 : cachedResponse.cacheControl) {
+                    const newRevalidate = Math.min(Math.max(cachedResponse.cacheControl.revalidate || 3, 3), 30);
+                    const newExpire = cachedResponse.cacheControl.expire === undefined ? undefined : Math.max(newRevalidate + 3, cachedResponse.cacheControl.expire);
+                    await incrementalCache.set(key, cachedResponse.value, {
+                        cacheControl: {
+                            revalidate: newRevalidate,
+                            expire: newExpire
+                        },
+                        isRoutePPREnabled,
+                        isFallback
+                    });
+                }
+                // While revalidating in the background we can't reject as we already
+                // resolved the cache entry so log the error here.
+                if (resolved) {
+                    console.error(err);
+                    return null;
+                }
+                // We haven't resolved yet, so let's throw to indicate an error.
+                throw err;
+            }
+        });
+        return (0, _utils.toResponseCacheEntry)(response);
+    }
+}
+
+//# sourceMappingURL=index.js.map