289 lines
12 KiB
JavaScript
289 lines
12 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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Object.defineProperty(exports, "default", {
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enumerable: true,
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get: function() {
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return FileSystemCache;
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}
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});
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const _lrucache = /*#__PURE__*/ _interop_require_default(require("next/dist/compiled/lru-cache"));
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const _path = /*#__PURE__*/ _interop_require_default(require("../../../shared/lib/isomorphic/path"));
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const _constants = require("../../../lib/constants");
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function _interop_require_default(obj) {
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return obj && obj.__esModule ? obj : {
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default: obj
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};
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}
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let memoryCache;
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let tagsManifest;
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class FileSystemCache {
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constructor(ctx){
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this.fs = ctx.fs;
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this.flushToDisk = ctx.flushToDisk;
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this.serverDistDir = ctx.serverDistDir;
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this.appDir = !!ctx._appDir;
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this.revalidatedTags = ctx.revalidatedTags;
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if (ctx.maxMemoryCacheSize && !memoryCache) {
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memoryCache = new _lrucache.default({
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max: ctx.maxMemoryCacheSize,
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length ({ value }) {
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var _JSON_stringify;
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if (!value) {
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return 25;
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} else if (value.kind === "REDIRECT") {
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return JSON.stringify(value.props).length;
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} else if (value.kind === "IMAGE") {
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throw new Error("invariant image should not be incremental-cache");
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} else if (value.kind === "FETCH") {
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return JSON.stringify(value.data || "").length;
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} else if (value.kind === "ROUTE") {
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return value.body.length;
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}
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// rough estimate of size of cache value
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return value.html.length + (((_JSON_stringify = JSON.stringify(value.pageData)) == null ? void 0 : _JSON_stringify.length) || 0);
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}
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});
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}
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if (this.serverDistDir && this.fs) {
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this.tagsManifestPath = _path.default.join(this.serverDistDir, "..", "cache", "fetch-cache", "tags-manifest.json");
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this.loadTagsManifest();
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}
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}
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loadTagsManifest() {
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if (!this.tagsManifestPath || !this.fs || tagsManifest) return;
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try {
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tagsManifest = JSON.parse(this.fs.readFileSync(this.tagsManifestPath, "utf8"));
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} catch (err) {
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tagsManifest = {
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version: 1,
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items: {}
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};
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}
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}
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async revalidateTag(tag) {
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// we need to ensure the tagsManifest is refreshed
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// since separate workers can be updating it at the same
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// time and we can't flush out of sync data
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this.loadTagsManifest();
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if (!tagsManifest || !this.tagsManifestPath) {
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return;
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}
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const data = tagsManifest.items[tag] || {};
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data.revalidatedAt = Date.now();
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tagsManifest.items[tag] = data;
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try {
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await this.fs.mkdir(_path.default.dirname(this.tagsManifestPath));
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await this.fs.writeFile(this.tagsManifestPath, JSON.stringify(tagsManifest || {}));
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} catch (err) {
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console.warn("Failed to update tags manifest.", err);
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}
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}
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async get(key, { tags, softTags, fetchCache } = {}) {
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var _data_value, _data_value1;
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let data = memoryCache == null ? void 0 : memoryCache.get(key);
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// let's check the disk for seed data
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if (!data && process.env.NEXT_RUNTIME !== "edge") {
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try {
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const { filePath } = await this.getFsPath({
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pathname: `${key}.body`,
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appDir: true
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});
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const fileData = await this.fs.readFile(filePath);
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const { mtime } = await this.fs.stat(filePath);
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const meta = JSON.parse(await this.fs.readFile(filePath.replace(/\.body$/, ".meta"), "utf8"));
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const cacheEntry = {
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lastModified: mtime.getTime(),
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value: {
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kind: "ROUTE",
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body: fileData,
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headers: meta.headers,
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status: meta.status
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}
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};
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return cacheEntry;
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} catch (_) {
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// no .meta data for the related key
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}
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try {
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const { filePath, isAppPath } = await this.getFsPath({
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pathname: fetchCache ? key : `${key}.html`,
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fetchCache
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});
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const fileData = await this.fs.readFile(filePath, "utf8");
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const { mtime } = await this.fs.stat(filePath);
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if (fetchCache) {
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var _data_value2;
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const lastModified = mtime.getTime();
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const parsedData = JSON.parse(fileData);
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data = {
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lastModified,
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value: parsedData
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};
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if (((_data_value2 = data.value) == null ? void 0 : _data_value2.kind) === "FETCH") {
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var _data_value_data, _data_value3;
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const storedTags = (_data_value3 = data.value) == null ? void 0 : (_data_value_data = _data_value3.data) == null ? void 0 : _data_value_data.tags;
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// update stored tags if a new one is being added
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// TODO: remove this when we can send the tags
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// via header on GET same as SET
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if (!(tags == null ? void 0 : tags.every((tag)=>storedTags == null ? void 0 : storedTags.includes(tag)))) {
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await this.set(key, data.value, {
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tags
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});
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}
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}
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} else {
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const pageData = isAppPath ? await this.fs.readFile((await this.getFsPath({
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pathname: `${key}.rsc`,
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appDir: true
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})).filePath, "utf8") : JSON.parse(await this.fs.readFile((await this.getFsPath({
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pathname: `${key}.json`,
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appDir: false
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})).filePath, "utf8"));
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let meta = {};
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if (isAppPath) {
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try {
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meta = JSON.parse(await this.fs.readFile(filePath.replace(/\.html$/, ".meta"), "utf8"));
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} catch {}
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}
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data = {
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lastModified: mtime.getTime(),
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value: {
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kind: "PAGE",
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html: fileData,
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pageData,
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headers: meta.headers,
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status: meta.status
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}
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};
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}
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if (data) {
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memoryCache == null ? void 0 : memoryCache.set(key, data);
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}
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} catch (_) {
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// unable to get data from disk
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}
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}
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if ((data == null ? void 0 : (_data_value = data.value) == null ? void 0 : _data_value.kind) === "PAGE") {
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var _data_value_headers;
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let cacheTags;
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const tagsHeader = (_data_value_headers = data.value.headers) == null ? void 0 : _data_value_headers[_constants.NEXT_CACHE_TAGS_HEADER];
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if (typeof tagsHeader === "string") {
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cacheTags = tagsHeader.split(",");
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}
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if (cacheTags == null ? void 0 : cacheTags.length) {
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this.loadTagsManifest();
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const isStale = cacheTags.some((tag)=>{
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var _tagsManifest_items_tag;
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return (tagsManifest == null ? void 0 : (_tagsManifest_items_tag = tagsManifest.items[tag]) == null ? void 0 : _tagsManifest_items_tag.revalidatedAt) && (tagsManifest == null ? void 0 : tagsManifest.items[tag].revalidatedAt) >= ((data == null ? void 0 : data.lastModified) || Date.now());
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});
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// we trigger a blocking validation if an ISR page
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// had a tag revalidated, if we want to be a background
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// revalidation instead we return data.lastModified = -1
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if (isStale) {
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data = undefined;
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}
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}
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}
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if (data && (data == null ? void 0 : (_data_value1 = data.value) == null ? void 0 : _data_value1.kind) === "FETCH") {
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this.loadTagsManifest();
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const combinedTags = [
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...tags || [],
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...softTags || []
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];
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const wasRevalidated = combinedTags.some((tag)=>{
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var _tagsManifest_items_tag;
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if (this.revalidatedTags.includes(tag)) {
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return true;
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}
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return (tagsManifest == null ? void 0 : (_tagsManifest_items_tag = tagsManifest.items[tag]) == null ? void 0 : _tagsManifest_items_tag.revalidatedAt) && (tagsManifest == null ? void 0 : tagsManifest.items[tag].revalidatedAt) >= ((data == null ? void 0 : data.lastModified) || Date.now());
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});
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// When revalidate tag is called we don't return
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// stale data so it's updated right away
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if (wasRevalidated) {
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data = undefined;
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}
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}
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return data || null;
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}
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async set(key, data, ctx) {
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memoryCache == null ? void 0 : memoryCache.set(key, {
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value: data,
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lastModified: Date.now()
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});
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if (!this.flushToDisk) return;
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if ((data == null ? void 0 : data.kind) === "ROUTE") {
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const { filePath } = await this.getFsPath({
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pathname: `${key}.body`,
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appDir: true
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});
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await this.fs.mkdir(_path.default.dirname(filePath));
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await this.fs.writeFile(filePath, data.body);
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await this.fs.writeFile(filePath.replace(/\.body$/, ".meta"), JSON.stringify({
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headers: data.headers,
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status: data.status
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}));
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return;
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}
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if ((data == null ? void 0 : data.kind) === "PAGE") {
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const isAppPath = typeof data.pageData === "string";
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const { filePath: htmlPath } = await this.getFsPath({
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pathname: `${key}.html`,
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appDir: isAppPath
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});
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await this.fs.mkdir(_path.default.dirname(htmlPath));
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await this.fs.writeFile(htmlPath, data.html);
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await this.fs.writeFile((await this.getFsPath({
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pathname: `${key}.${isAppPath ? "rsc" : "json"}`,
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appDir: isAppPath
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})).filePath, isAppPath ? data.pageData : JSON.stringify(data.pageData));
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if (data.headers || data.status) {
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await this.fs.writeFile(htmlPath.replace(/\.html$/, ".meta"), JSON.stringify({
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headers: data.headers,
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status: data.status
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}));
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}
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} else if ((data == null ? void 0 : data.kind) === "FETCH") {
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const { filePath } = await this.getFsPath({
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pathname: key,
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fetchCache: true
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});
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await this.fs.mkdir(_path.default.dirname(filePath));
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await this.fs.writeFile(filePath, JSON.stringify({
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...data,
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tags: ctx.tags
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}));
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}
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}
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async getFsPath({ pathname, appDir, fetchCache }) {
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if (fetchCache) {
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// we store in .next/cache/fetch-cache so it can be persisted
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// across deploys
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return {
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filePath: _path.default.join(this.serverDistDir, "..", "cache", "fetch-cache", pathname),
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isAppPath: false
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};
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}
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let isAppPath = false;
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let filePath = _path.default.join(this.serverDistDir, "pages", pathname);
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if (!this.appDir || appDir === false) return {
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filePath,
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isAppPath
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};
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try {
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await this.fs.readFile(filePath);
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return {
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filePath,
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isAppPath
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};
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} catch (err) {
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return {
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filePath: _path.default.join(this.serverDistDir, "app", pathname),
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isAppPath: true
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};
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}
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}
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}
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//# sourceMappingURL=file-system-cache.js.map
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