Amélioration de la détection de liens externes morts
This commit is contained in:
@@ -1,73 +1,337 @@
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const fs = require("fs");
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const path = require("path");
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const yaml = require("js-yaml");
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const { scrapePage } = require("./lib/puppeteer");
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const readline = require("readline");
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const util = require("util");
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const { execFile } = require("child_process");
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const UserAgent = require("user-agents");
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const {
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collectMarkdownLinksFromFile,
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extractLinksFromText,
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} = require("./lib/markdown_links");
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const CONTENT_DIR = path.join(__dirname, "..", "content");
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const DATA_DIR = path.join(__dirname, "..", "data");
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const SITE_ROOT = path.resolve(__dirname, "..");
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const CACHE_PATH = path.join(DATA_DIR, "external_links.yaml");
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const CACHE_TTL_DAYS = 7;
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const CONFIG_PATH = path.join(__dirname, "config.json");
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let config = {};
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if (fs.existsSync(CONFIG_PATH)) {
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try {
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config = JSON.parse(fs.readFileSync(CONFIG_PATH, "utf8"));
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} catch (error) {
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console.warn(
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`Failed to parse ${path.relative(SITE_ROOT, CONFIG_PATH)}. Using defaults. (${error.message})`
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);
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}
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}
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const externalConfig = {
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cacheDir: path.join(__dirname, "cache"),
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cacheFile: "external_links.yaml",
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hostDelayMs: 2000,
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retryDelayMs: 5000,
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requestTimeoutSeconds: 5,
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cacheTtlSuccessDays: 7,
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cacheTtlClientErrorDays: 0,
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outputFormat: "markdown",
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outputFile: path.join(__dirname, "cache", "external_links_report.md"),
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userAgent: null,
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enableCookies: true,
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cookieJar: path.join(__dirname, "cache", "curl_cookies.txt"),
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...(config.externalLinks || {}),
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};
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const CONTENT_DIR = path.join(SITE_ROOT, "content");
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const CACHE_DIR = path.isAbsolute(externalConfig.cacheDir)
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? externalConfig.cacheDir
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: path.resolve(SITE_ROOT, externalConfig.cacheDir);
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const CACHE_PATH = path.isAbsolute(externalConfig.cacheFile)
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? externalConfig.cacheFile
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: path.join(CACHE_DIR, externalConfig.cacheFile);
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const OUTPUT_FILE = path.isAbsolute(externalConfig.outputFile)
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? externalConfig.outputFile
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: path.resolve(SITE_ROOT, externalConfig.outputFile);
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const COOKIE_JAR = externalConfig.cookieJar
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? path.isAbsolute(externalConfig.cookieJar)
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? externalConfig.cookieJar
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: path.resolve(SITE_ROOT, externalConfig.cookieJar)
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: path.join(CACHE_DIR, "curl_cookies.txt");
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const CACHE_TTL_SUCCESS_DAYS = Number(externalConfig.cacheTtlSuccessDays) || 0;
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const CACHE_TTL_CLIENT_ERROR_DAYS = Number(externalConfig.cacheTtlClientErrorDays) || 0;
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const HOST_DELAY_MS = Number(externalConfig.hostDelayMs) || 0;
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const RETRY_DELAY_MS = Number(externalConfig.retryDelayMs) || 0;
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const REQUEST_TIMEOUT_SECONDS = Number(externalConfig.requestTimeoutSeconds) || 0;
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const maxConcurrentConfig = Number(externalConfig.maxConcurrentHosts);
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const MAX_CONCURRENT_HOSTS =
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Number.isFinite(maxConcurrentConfig) && maxConcurrentConfig > 0
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? maxConcurrentConfig
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: 4;
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const DEFAULT_USER_AGENT =
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typeof externalConfig.userAgent === "string" && externalConfig.userAgent.trim()
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? externalConfig.userAgent.trim()
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: new UserAgent().toString();
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const ENABLE_COOKIES = externalConfig.enableCookies !== false;
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const PROGRESS_FILE = path.join(__dirname, "cache", "external_links_progress.csv");
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const execFileAsync = util.promisify(execFile);
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fs.mkdirSync(CACHE_DIR, { recursive: true });
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if (ENABLE_COOKIES) {
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fs.mkdirSync(path.dirname(COOKIE_JAR), { recursive: true });
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if (!fs.existsSync(COOKIE_JAR)) {
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fs.closeSync(fs.openSync(COOKIE_JAR, "a"));
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}
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}
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try {
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if (fs.existsSync(PROGRESS_FILE)) {
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fs.unlinkSync(PROGRESS_FILE);
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}
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} catch (error) {
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console.warn(`Unable to remove existing progress file: ${error.message}`);
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}
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let cache = {};
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if (fs.existsSync(CACHE_PATH)) {
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cache = yaml.load(fs.readFileSync(CACHE_PATH, "utf8")) || {};
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}
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let cacheDirty = false;
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const now = new Date();
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const BAD_LINKS = [];
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const lastHostChecks = new Map();
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const runResults = new Map();
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function isExternalLink(link) {
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return typeof link === "string" && link.includes("://");
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function updateProgress(processed, total) {
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process.stdout.write(`\rURL ${processed}/${total}`);
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}
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function isCacheValid(entry) {
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if (!entry?.checked) return false;
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const date = new Date(entry.checked);
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return (now - date) / (1000 * 60 * 60 * 24) < CACHE_TTL_DAYS;
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const ttlDays = (() => {
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const status = entry.status;
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if (typeof status === "number") {
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if (status < 400) return CACHE_TTL_SUCCESS_DAYS;
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if (status < 500) return CACHE_TTL_CLIENT_ERROR_DAYS;
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return 0;
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}
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return 0;
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})();
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if (ttlDays <= 0) return false;
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return (now - date) / (1000 * 60 * 60 * 24) < ttlDays;
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}
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function extractLinksFromText(text) {
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const regex = /\bhttps?:\/\/[^\s)"'>]+/g;
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return text.match(regex) || [];
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}
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async function checkLink(file, line, url) {
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if (isCacheValid(cache[url])) return;
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const meta = await scrapePage(url, null, { screenshot: false });
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cache[url] = {
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status: meta.httpStatus || null,
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checked: new Date().toISOString(),
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};
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const bundle = path.relative(SITE_ROOT, file);
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if (!meta.httpStatus || meta.httpStatus >= 400) {
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BAD_LINKS.push({ bundle, url, line, status: meta.httpStatus });
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process.stdout.write("❌");
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} else {
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process.stdout.write("✔");
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async function collectMarkdownLinks(filePath, occurrencesMap) {
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const entries = await collectMarkdownLinksFromFile(filePath);
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for (const { url, line } of entries) {
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recordOccurrence(occurrencesMap, filePath, line, url);
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}
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}
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async function processMarkdown(filePath) {
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const fileStream = fs.createReadStream(filePath);
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const rl = readline.createInterface({ input: fileStream, crlfDelay: Infinity });
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let lineNumber = 0;
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for await (const line of rl) {
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lineNumber++;
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const links = extractLinksFromText(line);
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for (const link of links) {
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await checkLink(filePath, lineNumber, link);
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function recordOccurrence(occurrencesMap, filePath, lineNumber, url) {
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if (!occurrencesMap.has(url)) {
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occurrencesMap.set(url, { url, occurrences: [] });
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}
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const entry = occurrencesMap.get(url);
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const alreadyRecorded = entry.occurrences.some(
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(item) => item.file === filePath && item.line === lineNumber
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);
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if (!alreadyRecorded) {
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entry.occurrences.push({ file: filePath, line: lineNumber });
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}
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}
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function delay(ms) {
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return new Promise((resolve) => setTimeout(resolve, ms));
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}
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async function applyHostDelay(host) {
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if (!host) return;
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const last = lastHostChecks.get(host);
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if (last) {
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const elapsed = Date.now() - last;
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const waitTime = HOST_DELAY_MS - elapsed;
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if (waitTime > 0) {
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await delay(waitTime);
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}
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}
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}
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function processYamlRecursively(obj, links = []) {
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if (typeof obj === "string" && isExternalLink(obj)) {
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links.push(obj);
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function recordHostCheck(host) {
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if (host) {
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lastHostChecks.set(host, Date.now());
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}
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}
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function extractHost(url) {
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try {
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return new URL(url).hostname;
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} catch (_) {
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return null;
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}
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}
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function persistCache() {
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if (!cacheDirty) return;
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ensureDirectoryExists(CACHE_PATH);
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fs.writeFileSync(CACHE_PATH, yaml.dump(cache));
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cacheDirty = false;
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}
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function formatLocations(occurrences) {
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return occurrences
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.map(({ file, line }) => `${path.relative(SITE_ROOT, file)}:${line}`)
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.join("; ");
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}
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function escapeCsvField(value) {
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const stringValue = String(value);
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if (/[",\n]/.test(stringValue)) {
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return `"${stringValue.replace(/"/g, '""')}"`;
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}
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return stringValue;
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}
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function appendProgress(url, occurrences, status) {
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const locationText = formatLocations(occurrences);
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const statusText =
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typeof status === "number" && status < 400 && status !== null ? "" : status ?? "";
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const line = [
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escapeCsvField(url),
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escapeCsvField(locationText),
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escapeCsvField(statusText),
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].join(",");
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fs.appendFileSync(PROGRESS_FILE, `${line}\n`);
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}
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function groupEntriesByHost(entries) {
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const result = new Map();
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for (const entry of entries) {
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const host = extractHost(entry.url);
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const key = host || `__invalid__:${entry.url}`;
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if (!result.has(key)) {
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result.set(key, { host, entries: [] });
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}
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result.get(key).entries.push(entry);
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}
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return Array.from(result.values());
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}
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async function runWithConcurrency(items, worker, concurrency) {
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const executing = new Set();
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const promises = [];
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for (const item of items) {
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const promise = Promise.resolve().then(() => worker(item));
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promises.push(promise);
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executing.add(promise);
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const clean = () => executing.delete(promise);
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promise.then(clean).catch(clean);
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if (executing.size >= concurrency) {
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await Promise.race(executing);
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}
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}
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return Promise.all(promises);
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}
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async function curlRequest(url, method) {
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const args = [
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"--silent",
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"--location",
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"--fail",
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"--max-time",
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`${REQUEST_TIMEOUT_SECONDS}`,
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"--output",
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"/dev/null",
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"--write-out",
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"%{http_code}",
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"--user-agent",
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DEFAULT_USER_AGENT,
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"--request",
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method,
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url,
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];
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if (ENABLE_COOKIES) {
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args.push("--cookie", COOKIE_JAR, "--cookie-jar", COOKIE_JAR);
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}
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try {
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const { stdout } = await execFileAsync("curl", args);
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const status = parseInt(stdout.trim(), 10);
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return {
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status: Number.isNaN(status) ? null : status,
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errorType: null,
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method: method.toUpperCase(),
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};
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} catch (error) {
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const rawStatus = error?.stdout?.toString().trim();
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const status = rawStatus ? parseInt(rawStatus, 10) : null;
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const errorCode = Number(error?.code);
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const errorType = errorCode === 28 ? "timeout" : null;
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return {
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status: Number.isNaN(status) ? null : status,
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errorType,
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method: method.toUpperCase(),
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};
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}
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}
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function shouldRetryWithGet(result) {
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if (result.errorType) return true;
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if (result.status === null) return true;
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return result.status >= 400;
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}
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async function checkLink(url) {
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let info = runResults.get(url);
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if (!info) {
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const cachedInfo = cache[url];
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if (!isCacheValid(cachedInfo)) {
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const host = extractHost(url);
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if (host) {
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await applyHostDelay(host);
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}
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let result = await curlRequest(url, "HEAD");
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recordHostCheck(host);
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if (shouldRetryWithGet(result)) {
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await delay(RETRY_DELAY_MS);
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if (host) {
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await applyHostDelay(host);
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}
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result = await curlRequest(url, "GET");
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recordHostCheck(host);
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}
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info = {
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status: result.status ?? null,
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errorType: result.errorType || null,
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method: result.method,
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checked: new Date().toISOString(),
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};
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cache[url] = info;
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cacheDirty = true;
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persistCache();
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} else if (cachedInfo) {
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info = cachedInfo;
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} else {
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info = {
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status: null,
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errorType: "unknown",
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method: "HEAD",
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checked: new Date().toISOString(),
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};
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}
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runResults.set(url, info);
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}
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return info;
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}
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function processYamlRecursively(obj, links = new Set()) {
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if (typeof obj === "string") {
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for (const link of extractLinksFromText(obj)) {
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links.add(link);
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}
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} else if (Array.isArray(obj)) {
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for (const item of obj) processYamlRecursively(item, links);
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} else if (typeof obj === "object" && obj !== null) {
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@@ -76,15 +340,117 @@ function processYamlRecursively(obj, links = []) {
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return links;
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}
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async function processYaml(filePath) {
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function stripYamlInlineComment(line) {
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let inSingle = false;
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let inDouble = false;
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for (let i = 0; i < line.length; i++) {
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const ch = line[i];
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if (ch === "'" && !inDouble) {
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const next = line[i + 1];
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if (inSingle && next === "'") {
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i++;
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continue;
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}
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inSingle = !inSingle;
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} else if (ch === '"' && !inSingle) {
|
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if (!inDouble) {
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inDouble = true;
|
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} else if (line[i - 1] !== "\\") {
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inDouble = false;
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||||
}
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} else if (ch === "#" && !inSingle && !inDouble) {
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||||
return line.slice(0, i);
|
||||
} else if (ch === "\\" && inDouble) {
|
||||
i++;
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||||
}
|
||||
}
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return line;
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}
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function isYamlCommentLine(line) {
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||||
return line.trim().startsWith("#");
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||||
}
|
||||
|
||||
function isBlockScalarIndicator(line) {
|
||||
const cleaned = stripYamlInlineComment(line).trim();
|
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return /:\s*[>|][0-9+-]*\s*$/.test(cleaned);
|
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}
|
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|
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async function collectYamlLinks(filePath, occurrencesMap) {
|
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let linkSet = new Set();
|
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try {
|
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const doc = yaml.load(fs.readFileSync(filePath, "utf8"));
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const links = processYamlRecursively(doc);
|
||||
for (const link of links) {
|
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await checkLink(filePath, "?", link);
|
||||
}
|
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linkSet = processYamlRecursively(doc);
|
||||
} catch (e) {
|
||||
console.error(`Failed to parse YAML file: ${filePath}`);
|
||||
return;
|
||||
}
|
||||
|
||||
if (linkSet.size === 0) return;
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|
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const recorded = new Map();
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||||
const rawLines = fs.readFileSync(filePath, "utf8").split(/\r?\n/);
|
||||
let inBlockScalar = false;
|
||||
let blockIndent = 0;
|
||||
|
||||
const markRecorded = (url, lineNumber) => {
|
||||
if (!recorded.has(url)) {
|
||||
recorded.set(url, new Set());
|
||||
}
|
||||
const lines = recorded.get(url);
|
||||
if (lines.has(lineNumber)) return;
|
||||
lines.add(lineNumber);
|
||||
recordOccurrence(occurrencesMap, filePath, lineNumber, url);
|
||||
};
|
||||
|
||||
for (let index = 0; index < rawLines.length; index++) {
|
||||
const lineNumber = index + 1;
|
||||
const line = rawLines[index];
|
||||
const indent = line.match(/^\s*/)?.[0].length ?? 0;
|
||||
const trimmed = line.trim();
|
||||
|
||||
if (inBlockScalar) {
|
||||
if (trimmed === "" && indent < blockIndent) {
|
||||
inBlockScalar = false;
|
||||
continue;
|
||||
}
|
||||
if (trimmed === "" || indent >= blockIndent) {
|
||||
if (isYamlCommentLine(line)) {
|
||||
continue;
|
||||
}
|
||||
for (const link of extractLinksFromText(line)) {
|
||||
if (linkSet.has(link)) {
|
||||
markRecorded(link, lineNumber);
|
||||
}
|
||||
}
|
||||
continue;
|
||||
}
|
||||
inBlockScalar = false;
|
||||
}
|
||||
|
||||
const withoutComment = stripYamlInlineComment(line);
|
||||
const trimmedWithoutComment = withoutComment.trim();
|
||||
|
||||
if (isBlockScalarIndicator(line)) {
|
||||
inBlockScalar = true;
|
||||
blockIndent = indent + 1;
|
||||
}
|
||||
|
||||
if (isYamlCommentLine(line)) continue;
|
||||
|
||||
if (!trimmedWithoutComment) continue;
|
||||
|
||||
for (const link of extractLinksFromText(withoutComment)) {
|
||||
if (linkSet.has(link)) {
|
||||
markRecorded(link, lineNumber);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
for (const link of linkSet) {
|
||||
if (!recorded.has(link) || recorded.get(link).size === 0) {
|
||||
recordOccurrence(occurrencesMap, filePath, "?", link);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@@ -103,24 +469,155 @@ function walk(dir, exts) {
|
||||
return results;
|
||||
}
|
||||
|
||||
(async () => {
|
||||
const mdFiles = walk(CONTENT_DIR, [".md"]);
|
||||
const yamlFiles = walk(DATA_DIR, [".yaml", ".yml"]);
|
||||
console.log(`Scanning ${mdFiles.length} Markdown and ${yamlFiles.length} YAML files...`);
|
||||
function ensureDirectoryExists(targetFile) {
|
||||
fs.mkdirSync(path.dirname(targetFile), { recursive: true });
|
||||
}
|
||||
|
||||
function escapeMarkdownCell(value) {
|
||||
return String(value).replace(/\|/g, "\\|").replace(/\r?\n/g, " ");
|
||||
}
|
||||
|
||||
function generateMarkdownReport(entries) {
|
||||
const header = [
|
||||
"# Broken External Links",
|
||||
"",
|
||||
`Generated: ${new Date().toISOString()}`,
|
||||
"",
|
||||
];
|
||||
if (entries.length === 0) {
|
||||
return header.concat(["No broken external links found."]).join("\n");
|
||||
}
|
||||
const rows = entries.map((entry) => {
|
||||
const url = escapeMarkdownCell(entry.url);
|
||||
const location = escapeMarkdownCell(entry.location);
|
||||
const status = escapeMarkdownCell(entry.status);
|
||||
return `| ${url} | ${location} | ${status} |`;
|
||||
});
|
||||
return header
|
||||
.concat(["| URL | Location | Status |", "| --- | --- | --- |", ...rows])
|
||||
.join("\n");
|
||||
}
|
||||
|
||||
function generateCsvReport(entries) {
|
||||
const lines = [`"url","location","status"`];
|
||||
for (const entry of entries) {
|
||||
const line = [entry.url, entry.location, entry.status]
|
||||
.map((field) => `"${String(field).replace(/"/g, '""')}"`)
|
||||
.join(",");
|
||||
lines.push(line);
|
||||
}
|
||||
return lines.join("\n");
|
||||
}
|
||||
|
||||
function writeReport(entries) {
|
||||
const format = String(externalConfig.outputFormat || "markdown").toLowerCase();
|
||||
const content =
|
||||
format === "csv" ? generateCsvReport(entries) : generateMarkdownReport(entries);
|
||||
ensureDirectoryExists(OUTPUT_FILE);
|
||||
fs.writeFileSync(OUTPUT_FILE, content, "utf8");
|
||||
}
|
||||
|
||||
(async () => {
|
||||
const occurrencesByUrl = new Map();
|
||||
const mdFiles = walk(CONTENT_DIR, [".md", ".markdown"]);
|
||||
const yamlFiles = walk(CONTENT_DIR, [".yaml", ".yml"]);
|
||||
for (const file of mdFiles) {
|
||||
await processMarkdown(file);
|
||||
await collectMarkdownLinks(file, occurrencesByUrl);
|
||||
}
|
||||
for (const file of yamlFiles) {
|
||||
await processYaml(file);
|
||||
await collectYamlLinks(file, occurrencesByUrl);
|
||||
}
|
||||
|
||||
const uniqueEntries = Array.from(occurrencesByUrl.values());
|
||||
const activeUrls = new Set(uniqueEntries.map((entry) => entry.url));
|
||||
let cachePruned = false;
|
||||
for (const url of Object.keys(cache)) {
|
||||
if (!activeUrls.has(url)) {
|
||||
delete cache[url];
|
||||
cachePruned = true;
|
||||
}
|
||||
}
|
||||
if (cachePruned) {
|
||||
cacheDirty = true;
|
||||
}
|
||||
ensureDirectoryExists(PROGRESS_FILE);
|
||||
fs.writeFileSync(PROGRESS_FILE, `"url","locations","status"\n`, "utf8");
|
||||
|
||||
const total = uniqueEntries.length;
|
||||
if (total === 0) {
|
||||
process.stdout.write("No external links found.\n");
|
||||
ensureDirectoryExists(CACHE_PATH);
|
||||
fs.writeFileSync(CACHE_PATH, yaml.dump(cache));
|
||||
writeReport([]);
|
||||
return;
|
||||
}
|
||||
|
||||
const hostGroups = groupEntriesByHost(uniqueEntries);
|
||||
const concurrency = Math.max(1, Math.min(MAX_CONCURRENT_HOSTS, hostGroups.length || 1));
|
||||
let processed = 0;
|
||||
await runWithConcurrency(
|
||||
hostGroups,
|
||||
async ({ entries }) => {
|
||||
for (const entry of entries) {
|
||||
const info = await checkLink(entry.url);
|
||||
const status = typeof info?.status === "number" ? info.status : null;
|
||||
const errorType = info?.errorType || null;
|
||||
const hasHttpError = status !== null && status >= 400;
|
||||
const isTimeout = errorType === "timeout";
|
||||
const statusLabel = isTimeout ? "timeout" : status ?? "error";
|
||||
|
||||
if (status === null || hasHttpError || isTimeout) {
|
||||
BAD_LINKS.push({
|
||||
location: formatLocations(entry.occurrences),
|
||||
url: entry.url,
|
||||
status: statusLabel,
|
||||
});
|
||||
}
|
||||
|
||||
appendProgress(entry.url, entry.occurrences, hasHttpError || isTimeout || status === null ? statusLabel : status);
|
||||
processed += 1;
|
||||
updateProgress(processed, total);
|
||||
}
|
||||
},
|
||||
concurrency
|
||||
);
|
||||
process.stdout.write("\n");
|
||||
|
||||
ensureDirectoryExists(CACHE_PATH);
|
||||
fs.writeFileSync(CACHE_PATH, yaml.dump(cache));
|
||||
|
||||
console.log("\n\n=== Broken External Links Report ===");
|
||||
if (BAD_LINKS.length === 0) {
|
||||
console.log("✅ No broken external links found.");
|
||||
} else {
|
||||
console.table(BAD_LINKS);
|
||||
writeReport([]);
|
||||
console.log(
|
||||
`No broken external links detected. Report saved to ${path.relative(
|
||||
SITE_ROOT,
|
||||
OUTPUT_FILE
|
||||
)}.`
|
||||
);
|
||||
return;
|
||||
}
|
||||
|
||||
const sorted = BAD_LINKS.sort((a, b) => {
|
||||
const rank = (entry) => {
|
||||
if (entry.status === "timeout") return 2;
|
||||
if (typeof entry.status === "number") {
|
||||
return entry.status === 404 ? 0 : 1;
|
||||
}
|
||||
return 1;
|
||||
};
|
||||
const diff = rank(a) - rank(b);
|
||||
if (diff !== 0) return diff;
|
||||
if (typeof a.status === "number" && typeof b.status === "number") {
|
||||
return a.status - b.status;
|
||||
}
|
||||
return a.url.localeCompare(b.url);
|
||||
});
|
||||
|
||||
writeReport(sorted);
|
||||
console.log(
|
||||
`Found ${sorted.length} broken external link(s). Report saved to ${path.relative(
|
||||
SITE_ROOT,
|
||||
OUTPUT_FILE
|
||||
)}.`
|
||||
);
|
||||
})();
|
||||
|
||||
Reference in New Issue
Block a user