Ajoute un script d'import d'images Wikimedia

tools/add_wikimedia_image.js

@@ -0,0 +1,131 @@
+#!/usr/bin/env node
+
+const fs = require("node:fs");
+const fsPromises = require("node:fs/promises");
+const path = require("node:path");
+const { ensureBundleExists, promptForBundlePath } = require("./lib/bundles");
+const {
+  extractFileTitleFromUrl,
+  fetchWikimediaAsset,
+  downloadFile,
+} = require("./lib/wikimedia");
+
+const CONTENT_DIR = path.resolve("content");
+const TEMPLATE_PATH = path.resolve("data/metadata_template.yaml");
+const IMAGES_DIR = "images";
+const DATA_IMAGES_DIR = path.join("data", "images");
+
+/**
+ * Affiche l'aide minimale du script.
+ */
+function showUsage() {
+  console.error("Usage: node tools/add_wikimedia_image.js <url_wikimedia> [bundle_path]");
+}
+
+/**
+ * Charge le modèle YAML utilisé pour les métadonnées de pièces jointes.
+ * @returns {Promise<string>} Contenu brut du modèle.
+ */
+async function loadMetadataTemplate() {
+  return fsPromises.readFile(TEMPLATE_PATH, "utf8");
+}
+
+/**
+ * Injecte l'attribution et la description dans le modèle YAML existant.
+ * @param {string} template Modèle brut.
+ * @param {{ attribution: string, description: string }} metadata Valeurs à injecter.
+ * @returns {string} YAML final prêt à être écrit.
+ */
+function fillMetadataTemplate(template, metadata) {
+  let output = template;
+  output = output.replace('#attribution: ""', `attribution: ${JSON.stringify(metadata.attribution)}`);
+  output = output.replace('#description: ""', `description: ${JSON.stringify(metadata.description)}`);
+  return output;
+}
+
+/**
+ * Retourne les chemins finaux de l'image et de son fichier de métadonnées.
+ * @param {string} bundlePath Bundle ciblé.
+ * @param {string} fileName Nom de fichier téléchargé.
+ * @returns {{ imagePath: string, metadataPath: string }}
+ */
+function buildTargetPaths(bundlePath, fileName) {
+  const extension = path.extname(fileName);
+  const baseName = path.basename(fileName, extension);
+
+  return {
+    imagePath: path.join(bundlePath, IMAGES_DIR, fileName),
+    metadataPath: path.join(bundlePath, DATA_IMAGES_DIR, `${baseName}.yaml`),
+  };
+}
+
+/**
+ * Vérifie qu'aucun fichier existant ne sera écrasé.
+ * @param {string} imagePath Chemin final de l'image.
+ * @param {string} metadataPath Chemin final des métadonnées.
+ */
+function ensureTargetsDoNotExist(imagePath, metadataPath) {
+  if (fs.existsSync(imagePath)) {
+    throw new Error(`L'image ${imagePath} existe déjà.`);
+  }
+
+  if (fs.existsSync(metadataPath)) {
+    throw new Error(`Le fichier de métadonnées ${metadataPath} existe déjà.`);
+  }
+}
+
+/**
+ * Assure l'existence des dossiers parents nécessaires.
+ * @param {string} imagePath Chemin final de l'image.
+ * @param {string} metadataPath Chemin final des métadonnées.
+ */
+async function ensureTargetDirectories(imagePath, metadataPath) {
+  await fsPromises.mkdir(path.dirname(imagePath), { recursive: true });
+  await fsPromises.mkdir(path.dirname(metadataPath), { recursive: true });
+}
+
+/**
+ * Point d'entrée principal du script.
+ */
+async function main() {
+  const rawUrl = process.argv[2];
+  const manualBundlePath = process.argv[3];
+
+  if (!rawUrl) {
+    showUsage();
+    process.exit(1);
+  }
+
+  const bundlePath = await promptForBundlePath(manualBundlePath, {
+    contentDir: CONTENT_DIR,
+    prompts: {
+      confirmLatest(latest) {
+        return `Utiliser le dernier bundle trouve : ${latest} ? (Y/n) `;
+      },
+      manualPath: "Saisissez le chemin relatif du bundle : ",
+    },
+  });
+
+  ensureBundleExists(bundlePath);
+
+  const fileTitle = extractFileTitleFromUrl(rawUrl);
+  console.log(`Recuperation des metadonnees Wikimedia pour ${fileTitle}...`);
+
+  const asset = await fetchWikimediaAsset(fileTitle);
+  const targets = buildTargetPaths(bundlePath, asset.fileName);
+
+  ensureTargetsDoNotExist(targets.imagePath, targets.metadataPath);
+  await ensureTargetDirectories(targets.imagePath, targets.metadataPath);
+
+  console.log(`Telechargement de ${asset.fileName}...`);
+  await downloadFile(asset.imageUrl, targets.imagePath);
+
+  const template = await loadMetadataTemplate();
+  const metadataContent = fillMetadataTemplate(template, asset);
+  await fsPromises.writeFile(targets.metadataPath, metadataContent, "utf8");
+
+  console.log(`Image enregistree : ${targets.imagePath}`);
+  console.log(`Metadonnees enregistrees : ${targets.metadataPath}`);
+}
+
+main();

tools/generate_mermaid_diagrams.js

@@ -1,50 +1,14 @@
 const fs = require('fs/promises');
 const path = require('path');
-const readline = require('readline');
 const { spawn } = require('child_process');
 const os = require('os');
+const { promptForBundlePath } = require('./lib/bundles');
 
 const CONTENT_DIR = path.resolve('content');
 const DIAGRAMS_DIR = 'diagrams';
 const OUTPUT_DIR = 'images';
 const MERMAID_EXTENSION = '.mermaid';
 
-function askQuestion(query) {
-  const rl = readline.createInterface({ input: process.stdin, output: process.stdout });
-
-  return new Promise(resolve => rl.question(query, answer => { rl.close(); resolve(answer.trim()); }));
-}
-
-async function findLatestBundle(dir) {
-  let latest = { path: null, time: 0 };
-
-  async function search(current) {
-    const entries = await fs.readdir(current, { withFileTypes: true });
-
-    for (const entry of entries) {
-      const fullPath = path.join(current, entry.name);
-
-      if (entry.isDirectory()) {
-        const hasIndex = (await fs.readdir(fullPath)).includes('index.md');
-
-        if (hasIndex) {
-          const stat = await fs.stat(fullPath);
-
-          if (stat.mtimeMs > latest.time) {
-            latest = { path: fullPath, time: stat.mtimeMs };
-          }
-        } else {
-          await search(fullPath);
-        }
-      }
-    }
-  }
-
-  await search(dir);
-
-  return latest.path;
-}
-
 async function directoryExists(dirPath) {
   try {
     const stat = await fs.stat(dirPath);
@@ -221,29 +185,7 @@ async function generateDiagrams(bundlePath) {
 
 async function main() {
   const manualPath = process.argv[2];
-
-  let bundle;
-
-  if (manualPath) {
-    bundle = path.resolve(manualPath);
-  } else {
-    const latest = await findLatestBundle(CONTENT_DIR);
-
-    if (!latest) {
-      console.error('No bundle found in content/.');
-      return;
-    }
-
-    const confirm = await askQuestion(`Use latest bundle found: ${latest}? (Y/n) `);
-
-    if (confirm.toLowerCase() === 'n') {
-      const inputPath = await askQuestion('Enter the relative path to your bundle: ');
-
-      bundle = path.resolve(inputPath);
-    } else {
-      bundle = latest;
-    }
-  }
+  const bundle = await promptForBundlePath(manualPath, { contentDir: CONTENT_DIR });
 
   try {
     await generateDiagrams(bundle);

tools/generate_metadata_files.js

@@ -1,48 +1,12 @@
 const fs = require('fs/promises');
 const fsSync = require('fs');
 const path = require('path');
-const readline = require('readline');
+const { promptForBundlePath } = require('./lib/bundles');
 
 const CONTENT_DIR = path.resolve('content');
 const TEMPLATE_PATH = path.resolve('data/metadata_template.yaml');
 const MEDIA_TYPES = ['images', 'sounds', 'videos'];
 
-function askQuestion(query) {
-  const rl = readline.createInterface({ input: process.stdin, output: process.stdout });
-
-  return new Promise(resolve => rl.question(query, answer => { rl.close(); resolve(answer.trim()); }));
-}
-
-async function findLatestBundle(dir) {
-  let latest = { path: null, time: 0 };
-
-  async function search(current) {
-    const entries = await fs.readdir(current, { withFileTypes: true });
-
-    for (const entry of entries) {
-      const fullPath = path.join(current, entry.name);
-
-      if (entry.isDirectory()) {
-        const hasIndex = (await fs.readdir(fullPath)).includes('index.md');
-
-        if (hasIndex) {
-          const stat = await fs.stat(fullPath);
-
-          if (stat.mtimeMs > latest.time) {
-            latest = { path: fullPath, time: stat.mtimeMs };
-          }
-        } else {
-          await search(fullPath);
-        }
-      }
-    }
-  }
-
-  await search(dir);
-
-  return latest.path;
-}
-
 async function loadTemplate() {
   return fs.readFile(TEMPLATE_PATH, 'utf8');
 }
@@ -97,29 +61,7 @@ async function generateYamlFiles(bundlePath, yamlTemplate) {
 
 async function main() {
   const manualPath = process.argv[2];
-
-  let bundle;
-
-  if (manualPath) {
-    bundle = path.resolve(manualPath);
-  } else {
-    const latest = await findLatestBundle(CONTENT_DIR);
-
-    if (!latest) {
-      console.error('No bundle found in content/.');
-      return;
-    }
-
-    const confirm = await askQuestion(`Use latest bundle found: ${latest}? (Y/n) `);
-
-    if (confirm.toLowerCase() === 'n') {
-      const inputPath = await askQuestion('Enter the relative path to your bundle: ');
-
-      bundle = path.resolve(inputPath);
-    } else {
-      bundle = latest;
-    }
-  }
+  const bundle = await promptForBundlePath(manualPath, { contentDir: CONTENT_DIR });
 
   const template = await loadTemplate();
 

tools/lib/article_move.js

@@ -1,37 +1,7 @@
 const fs = require("node:fs");
 const path = require("node:path");
 const { readFrontmatterFile, writeFrontmatterFile } = require("./frontmatter");
-
-/**
- * Résout un chemin source vers le dossier du bundle.
- * @param {string} input Chemin fourni par l'utilisateur.
- * @returns {string} Chemin absolu du bundle.
- */
-function resolveBundlePath(input) {
-  const resolved = path.resolve(input);
-  if (resolved.toLowerCase().endsWith(`${path.sep}index.md`)) {
-    return path.dirname(resolved);
-  }
-  return resolved;
-}
-
-/**
- * Vérifie la présence d'un bundle Hugo.
- * @param {string} bundleDir Chemin absolu du bundle.
- */
-function ensureBundleExists(bundleDir) {
-  if (!fs.existsSync(bundleDir)) {
-    throw new Error(`Le bundle ${bundleDir} est introuvable.`);
-  }
-  const stats = fs.statSync(bundleDir);
-  if (!stats.isDirectory()) {
-    throw new Error(`Le bundle ${bundleDir} n'est pas un dossier.`);
-  }
-  const indexPath = path.join(bundleDir, "index.md");
-  if (!fs.existsSync(indexPath)) {
-    throw new Error(`Le bundle ${bundleDir} ne contient pas index.md.`);
-  }
-}
+const { resolveBundlePath, ensureBundleExists } = require("./bundles");
 
 /**
  * Vérifie que le chemin reste sous content/.

tools/lib/bundles.js

@@ -0,0 +1,163 @@
+const fs = require("node:fs");
+const fsPromises = require("node:fs/promises");
+const path = require("node:path");
+const readline = require("node:readline/promises");
+const { stdin, stdout } = require("node:process");
+
+/**
+ * Normalise une entrée utilisateur vers le dossier du bundle.
+ * @param {string} input Chemin saisi par l'utilisateur.
+ * @returns {string} Chemin absolu du bundle.
+ */
+function resolveBundlePath(input) {
+  if (typeof input !== "string" || !input.trim()) {
+    throw new Error("Le chemin du bundle est vide.");
+  }
+
+  const resolved = path.resolve(input);
+  if (resolved.toLowerCase().endsWith(`${path.sep}index.md`)) {
+    return path.dirname(resolved);
+  }
+  return resolved;
+}
+
+/**
+ * Vérifie qu'un dossier correspond bien à un bundle Hugo.
+ * @param {string} bundleDir Chemin absolu du bundle.
+ */
+function ensureBundleExists(bundleDir) {
+  if (!fs.existsSync(bundleDir)) {
+    throw new Error(`Le bundle ${bundleDir} est introuvable.`);
+  }
+
+  const stats = fs.statSync(bundleDir);
+  if (!stats.isDirectory()) {
+    throw new Error(`Le bundle ${bundleDir} n'est pas un dossier.`);
+  }
+
+  const indexPath = path.join(bundleDir, "index.md");
+  if (!fs.existsSync(indexPath)) {
+    throw new Error(`Le bundle ${bundleDir} ne contient pas index.md.`);
+  }
+}
+
+/**
+ * Pose une question simple à l'utilisateur.
+ * @param {string} query Texte affiché dans le terminal.
+ * @returns {Promise<string>} Réponse nettoyée.
+ */
+async function askQuestion(query) {
+  const rl = readline.createInterface({ input: stdin, output: stdout });
+  const answer = await rl.question(query);
+  rl.close();
+  return answer.trim();
+}
+
+/**
+ * Cherche le bundle modifié le plus récemment sous un répertoire racine.
+ * @param {string} rootDir Racine à parcourir.
+ * @returns {Promise<string|null>} Chemin absolu du dernier bundle trouvé.
+ */
+async function findLatestBundle(rootDir) {
+  let latestPath = null;
+  let latestTime = 0;
+
+  await walk(rootDir);
+
+  return latestPath;
+
+  /**
+   * Parcourt récursivement l'arborescence et conserve le bundle le plus récent.
+   * @param {string} currentDir Dossier en cours d'analyse.
+   */
+  async function walk(currentDir) {
+    const entries = await fsPromises.readdir(currentDir, { withFileTypes: true });
+    let hasIndex = false;
+
+    for (const entry of entries) {
+      if (entry.isFile() && entry.name === "index.md") {
+        hasIndex = true;
+        break;
+      }
+    }
+
+    if (hasIndex) {
+      const stats = await fsPromises.stat(currentDir);
+      if (stats.mtimeMs > latestTime) {
+        latestTime = stats.mtimeMs;
+        latestPath = currentDir;
+      }
+      return;
+    }
+
+    for (const entry of entries) {
+      if (!entry.isDirectory()) {
+        continue;
+      }
+
+      const childDir = path.join(currentDir, entry.name);
+      await walk(childDir);
+    }
+  }
+}
+
+/**
+ * Résout le bundle cible à partir d'un chemin manuel ou du dernier bundle trouvé.
+ * @param {string|null|undefined} manualPath Chemin optionnel fourni en argument.
+ * @param {{ contentDir: string, prompts?: { confirmLatest: Function, manualPath: string } }} options Options de résolution.
+ * @returns {Promise<string>} Chemin absolu du bundle retenu.
+ */
+async function promptForBundlePath(manualPath, options) {
+  let contentDir = path.resolve("content");
+  if (options && typeof options.contentDir === "string" && options.contentDir.trim()) {
+    contentDir = path.resolve(options.contentDir);
+  }
+
+  const defaultPrompts = {
+    confirmLatest(latest) {
+      return `Use latest bundle found: ${latest}? (Y/n) `;
+    },
+    manualPath: "Enter the relative path to your bundle: ",
+  };
+  let prompts = defaultPrompts;
+
+  if (options && options.prompts && typeof options.prompts === "object") {
+    prompts = {
+      confirmLatest: defaultPrompts.confirmLatest,
+      manualPath: defaultPrompts.manualPath,
+    };
+
+    if (typeof options.prompts.confirmLatest === "function") {
+      prompts.confirmLatest = options.prompts.confirmLatest;
+    }
+
+    if (typeof options.prompts.manualPath === "string" && options.prompts.manualPath.trim()) {
+      prompts.manualPath = options.prompts.manualPath;
+    }
+  }
+
+  if (typeof manualPath === "string" && manualPath.trim()) {
+    return resolveBundlePath(manualPath);
+  }
+
+  const latest = await findLatestBundle(contentDir);
+  if (!latest) {
+    throw new Error("Aucun bundle n'a été trouvé sous content/.");
+  }
+
+  const confirm = await askQuestion(prompts.confirmLatest(latest));
+  if (confirm.toLowerCase() === "n") {
+    const inputPath = await askQuestion(prompts.manualPath);
+    return resolveBundlePath(inputPath);
+  }
+
+  return latest;
+}
+
+module.exports = {
+  resolveBundlePath,
+  ensureBundleExists,
+  askQuestion,
+  findLatestBundle,
+  promptForBundlePath,
+};

tools/lib/wikimedia.js

@@ -0,0 +1,355 @@
+const fs = require("node:fs/promises");
+const path = require("node:path");
+const { fetch } = require("undici");
+
+const COMMONS_API_URL = "https://commons.wikimedia.org/w/api.php";
+const COMMONS_HOST = "commons.wikimedia.org";
+const UPLOAD_HOST = "upload.wikimedia.org";
+
+/**
+ * Extrait un titre de fichier MediaWiki depuis une URL Wikipédia ou Commons.
+ * @param {string} rawUrl URL fournie par l'utilisateur.
+ * @returns {string} Titre canonique de type `File:Nom.ext`.
+ */
+function extractFileTitleFromUrl(rawUrl) {
+  const url = new URL(rawUrl);
+  const hostname = url.hostname.toLowerCase();
+
+  if (url.hash) {
+    const hash = decodeURIComponent(url.hash.slice(1));
+    if (hash.startsWith("/media/")) {
+      const fileTitle = hash.slice("/media/".length);
+      return normalizeFileTitle(fileTitle);
+    }
+  }
+
+  if (pathnameLooksLikeFilePage(url.pathname)) {
+    const title = decodeURIComponent(url.pathname.slice("/wiki/".length));
+    return normalizeFileTitle(title);
+  }
+
+  if (hostname === UPLOAD_HOST) {
+    const fileName = decodeURIComponent(path.basename(url.pathname));
+    return normalizeFileTitle(`File:${fileName}`);
+  }
+
+  if (hostname === COMMONS_HOST || hostname.endsWith(".wikipedia.org")) {
+    throw new Error(`L'URL ${rawUrl} ne pointe pas vers une page de fichier Wikimedia.`);
+  }
+
+  throw new Error(`L'URL ${rawUrl} n'appartient pas à Wikipédia ou Wikimedia Commons.`);
+}
+
+/**
+ * Vérifie si un chemin d'URL correspond à une page de fichier MediaWiki.
+ * @param {string} pathname Partie pathname de l'URL.
+ * @returns {boolean} `true` si le chemin vise une page de fichier.
+ */
+function pathnameLooksLikeFilePage(pathname) {
+  if (!pathname.startsWith("/wiki/")) {
+    return false;
+  }
+
+  const decoded = decodeURIComponent(pathname.slice("/wiki/".length));
+  if (decoded.startsWith("File:")) {
+    return true;
+  }
+  if (decoded.startsWith("Fichier:")) {
+    return true;
+  }
+  return false;
+}
+
+/**
+ * Normalise un titre de fichier Wikimedia vers l'espace de noms `File:`.
+ * @param {string} rawTitle Titre brut extrait d'une URL.
+ * @returns {string} Titre normalisé.
+ */
+function normalizeFileTitle(rawTitle) {
+  const cleaned = rawTitle.trim();
+  if (!cleaned) {
+    throw new Error("Le titre du fichier Wikimedia est vide.");
+  }
+
+  if (cleaned.startsWith("File:")) {
+    return cleaned;
+  }
+
+  if (cleaned.startsWith("Fichier:")) {
+    return `File:${cleaned.slice("Fichier:".length)}`;
+  }
+
+  throw new Error(`Le titre ${rawTitle} ne correspond pas à un fichier Wikimedia.`);
+}
+
+/**
+ * Interroge l'API Commons pour récupérer l'image et ses métadonnées.
+ * @param {string} fileTitle Titre du fichier ciblé.
+ * @returns {Promise<{ fileTitle: string, fileName: string, imageUrl: string, descriptionUrl: string, descriptionShortUrl: string, description: string, attribution: string }>}
+ */
+async function fetchWikimediaAsset(fileTitle) {
+  const url = new URL(COMMONS_API_URL);
+  url.searchParams.set("action", "query");
+  url.searchParams.set("titles", fileTitle);
+  url.searchParams.set("prop", "imageinfo");
+  url.searchParams.set("iiprop", "url|extmetadata");
+  url.searchParams.set("iiextmetadatalanguage", "en");
+  url.searchParams.set("iilimit", "1");
+  url.searchParams.set("format", "json");
+
+  const response = await fetch(url, {
+    headers: {
+      accept: "application/json",
+    },
+  });
+
+  if (!response.ok) {
+    throw new Error(`L'API Wikimedia Commons a répondu ${response.status} pour ${fileTitle}.`);
+  }
+
+  const data = await response.json();
+  return extractAssetFromApiResponse(data);
+}
+
+/**
+ * Extrait les informations utiles depuis une réponse JSON de l'API Commons.
+ * @param {Record<string, any>} data Réponse JSON brute.
+ * @returns {{ fileTitle: string, fileName: string, imageUrl: string, descriptionUrl: string, descriptionShortUrl: string, description: string, attribution: string }}
+ */
+function extractAssetFromApiResponse(data) {
+  if (!data || typeof data !== "object") {
+    throw new Error("La réponse de l'API Wikimedia Commons est invalide.");
+  }
+
+  const query = data.query;
+  if (!query || typeof query !== "object") {
+    throw new Error("La réponse de l'API Wikimedia Commons ne contient pas de section query.");
+  }
+
+  const pages = query.pages;
+  if (!pages || typeof pages !== "object") {
+    throw new Error("La réponse de l'API Wikimedia Commons ne contient pas de pages.");
+  }
+
+  const pageIds = Object.keys(pages);
+  if (pageIds.length === 0) {
+    throw new Error("La réponse de l'API Wikimedia Commons ne contient aucune page.");
+  }
+
+  const page = pages[pageIds[0]];
+  if (!page || typeof page !== "object") {
+    throw new Error("La page Wikimedia Commons retournée est invalide.");
+  }
+
+  if (Object.prototype.hasOwnProperty.call(page, "missing")) {
+    throw new Error(`Le fichier Wikimedia ${page.title} est introuvable.`);
+  }
+
+  const imageInfoList = page.imageinfo;
+  if (!Array.isArray(imageInfoList) || imageInfoList.length === 0) {
+    throw new Error(`Aucune information image n'a été retournée pour ${page.title}.`);
+  }
+
+  const imageInfo = imageInfoList[0];
+  const extmetadata = imageInfo.extmetadata;
+  if (!extmetadata || typeof extmetadata !== "object") {
+    throw new Error(`Les métadonnées étendues sont absentes pour ${page.title}.`);
+  }
+
+  const imageUrl = imageInfo.url;
+  const descriptionUrl = imageInfo.descriptionurl;
+  const descriptionShortUrl = imageInfo.descriptionshorturl;
+
+  if (typeof imageUrl !== "string" || !imageUrl) {
+    throw new Error(`L'URL de téléchargement est absente pour ${page.title}.`);
+  }
+
+  if (typeof descriptionUrl !== "string" || !descriptionUrl) {
+    throw new Error(`L'URL de description est absente pour ${page.title}.`);
+  }
+
+  if (typeof descriptionShortUrl !== "string" || !descriptionShortUrl) {
+    throw new Error(`L'URL courte de description est absente pour ${page.title}.`);
+  }
+
+  const imageDescription = readExtMetadataValue(extmetadata, "ImageDescription");
+  const artist = readExtMetadataValue(extmetadata, "Artist");
+  const credit = readExtMetadataValue(extmetadata, "Credit");
+  const licenseShortName = normalizeLicenseName(readExtMetadataValue(extmetadata, "LicenseShortName"));
+  const attribution = buildAttribution(artist, credit, licenseShortName, descriptionShortUrl);
+  const fileName = decodeURIComponent(path.basename(new URL(imageUrl).pathname));
+
+  if (!imageDescription) {
+    throw new Error(`La description Wikimedia est absente pour ${page.title}.`);
+  }
+
+  if (!attribution) {
+    throw new Error(`L'attribution Wikimedia est absente pour ${page.title}.`);
+  }
+
+  return {
+    fileTitle: page.title,
+    fileName,
+    imageUrl,
+    descriptionUrl,
+    descriptionShortUrl,
+    description: imageDescription,
+    attribution,
+  };
+}
+
+/**
+ * Lit un champ extmetadata et le convertit en texte brut.
+ * @param {Record<string, any>} extmetadata Métadonnées étendues.
+ * @param {string} key Nom du champ recherché.
+ * @returns {string} Valeur nettoyée, éventuellement vide.
+ */
+function readExtMetadataValue(extmetadata, key) {
+  const entry = extmetadata[key];
+  if (!entry || typeof entry !== "object") {
+    return "";
+  }
+
+  if (typeof entry.value !== "string") {
+    return "";
+  }
+
+  return sanitizeMetadataText(entry.value);
+}
+
+/**
+ * Nettoie une valeur HTML issue de Commons et la ramène à du texte.
+ * @param {string} value Valeur brute.
+ * @returns {string} Texte brut nettoyé.
+ */
+function sanitizeMetadataText(value) {
+  let sanitized = decodeHtmlEntities(value);
+  sanitized = sanitized.replace(/<br\s*\/?>/gi, " ");
+  sanitized = sanitized.replace(/<[^>]+>/g, " ");
+  sanitized = decodeHtmlEntities(sanitized);
+  sanitized = sanitized.replace(/\s+/g, " ").trim();
+  return sanitized;
+}
+
+/**
+ * Décode un sous-ensemble suffisant des entités HTML utilisées par Commons.
+ * @param {string} value Valeur HTML encodée.
+ * @returns {string} Valeur décodée.
+ */
+function decodeHtmlEntities(value) {
+  const namedEntities = {
+    amp: "&",
+    apos: "'",
+    gt: ">",
+    lt: "<",
+    nbsp: " ",
+    quot: "\"",
+  };
+
+  let decoded = value.replace(/&#x([0-9a-f]+);/gi, (match, digits) => {
+    const codePoint = Number.parseInt(digits, 16);
+    if (!Number.isInteger(codePoint)) {
+      return match;
+    }
+    if (codePoint < 0 || codePoint > 0x10ffff) {
+      return match;
+    }
+    return String.fromCodePoint(codePoint);
+  });
+
+  decoded = decoded.replace(/&#([0-9]+);/g, (match, digits) => {
+    const codePoint = Number.parseInt(digits, 10);
+    if (!Number.isInteger(codePoint)) {
+      return match;
+    }
+    if (codePoint < 0 || codePoint > 0x10ffff) {
+      return match;
+    }
+    return String.fromCodePoint(codePoint);
+  });
+
+  decoded = decoded.replace(/&([a-z]+);/gi, (match, name) => {
+    const key = name.toLowerCase();
+    if (Object.prototype.hasOwnProperty.call(namedEntities, key)) {
+      return namedEntities[key];
+    }
+    return match;
+  });
+
+  return decoded;
+}
+
+/**
+ * Assemble l'attribution finale telle qu'elle sera écrite dans le YAML.
+ * @param {string} artist Auteur nettoyé.
+ * @param {string} credit Crédit nettoyé.
+ * @param {string} licenseShortName Licence courte.
+ * @param {string} descriptionShortUrl URL courte Commons.
+ * @returns {string} Attribution concaténée.
+ */
+function buildAttribution(artist, credit, licenseShortName, descriptionShortUrl) {
+  const parts = [];
+
+  let creditLine = "";
+  if (artist) {
+    creditLine = `By ${artist}`;
+  }
+
+  if (credit) {
+    if (creditLine) {
+      creditLine = `${creditLine} - ${credit}`;
+    } else {
+      creditLine = credit;
+    }
+  }
+
+  if (creditLine) {
+    parts.push(creditLine);
+  }
+
+  if (licenseShortName) {
+    parts.push(licenseShortName);
+  }
+
+  if (descriptionShortUrl) {
+    parts.push(descriptionShortUrl);
+  }
+
+  return parts.join(", ");
+}
+
+/**
+ * Harmonise certains libellés de licence pour rester cohérente avec l'existant.
+ * @param {string} licenseShortName Libellé brut fourni par Commons.
+ * @returns {string} Libellé normalisé.
+ */
+function normalizeLicenseName(licenseShortName) {
+  if (licenseShortName === "Public domain") {
+    return "Public Domain";
+  }
+  return licenseShortName;
+}
+
+/**
+ * Télécharge un fichier binaire distant sur le disque.
+ * @param {string} url URL source.
+ * @param {string} targetPath Chemin cible.
+ */
+async function downloadFile(url, targetPath) {
+  const response = await fetch(url);
+  if (!response.ok) {
+    throw new Error(`Le téléchargement de ${url} a échoué avec le code ${response.status}.`);
+  }
+
+  const buffer = Buffer.from(await response.arrayBuffer());
+  await fs.writeFile(targetPath, buffer);
+}
+
+module.exports = {
+  extractFileTitleFromUrl,
+  fetchWikimediaAsset,
+  extractAssetFromApiResponse,
+  sanitizeMetadataText,
+  buildAttribution,
+  downloadFile,
+};

tools/tests/bundles.test.js

@@ -0,0 +1,42 @@
+const test = require("node:test");
+const assert = require("node:assert/strict");
+const fs = require("node:fs/promises");
+const os = require("node:os");
+const path = require("node:path");
+const { findLatestBundle, resolveBundlePath } = require("../lib/bundles");
+
+/**
+ * Crée un bundle Hugo minimal pour les tests.
+ * @param {string} rootDir Racine temporaire.
+ * @param {string} relativePath Chemin relatif du bundle.
+ * @returns {Promise<string>} Chemin absolu du bundle créé.
+ */
+async function createBundle(rootDir, relativePath) {
+  const bundleDir = path.join(rootDir, relativePath);
+  await fs.mkdir(bundleDir, { recursive: true });
+  await fs.writeFile(path.join(bundleDir, "index.md"), "---\ntitle: Test\ndate: 2026-03-20T12:00:00+01:00\n---\n", "utf8");
+  return bundleDir;
+}
+
+test("resolveBundlePath accepte un dossier de bundle ou un index.md", () => {
+  const bundleDir = path.resolve("content/example/bundle");
+  const indexPath = path.join(bundleDir, "index.md");
+
+  assert.equal(resolveBundlePath(bundleDir), bundleDir);
+  assert.equal(resolveBundlePath(indexPath), bundleDir);
+});
+
+test("findLatestBundle retourne le bundle modifie le plus recemment", async () => {
+  const tempRoot = await fs.mkdtemp(path.join(os.tmpdir(), "bundles-test-"));
+  const olderBundle = await createBundle(tempRoot, "alpha/article-a");
+  const newerBundle = await createBundle(tempRoot, "beta/article-b");
+
+  await fs.utimes(olderBundle, new Date("2026-03-20T10:00:00Z"), new Date("2026-03-20T10:00:00Z"));
+  await fs.utimes(newerBundle, new Date("2026-03-20T11:00:00Z"), new Date("2026-03-20T11:00:00Z"));
+
+  const latestBundle = await findLatestBundle(tempRoot);
+
+  assert.equal(latestBundle, newerBundle);
+
+  await fs.rm(tempRoot, { recursive: true, force: true });
+});

tools/tests/wikimedia.test.js

@@ -0,0 +1,65 @@
+const test = require("node:test");
+const assert = require("node:assert/strict");
+const {
+  extractFileTitleFromUrl,
+  extractAssetFromApiResponse,
+  sanitizeMetadataText,
+} = require("../lib/wikimedia");
+
+test("extractFileTitleFromUrl supporte les URLs Commons et les fragments media de Wikipedia", () => {
+  const commonsUrl = "https://commons.wikimedia.org/wiki/File:IBookG3_Palourde2.png";
+  const wikipediaMediaUrl = "https://en.wikipedia.org/wiki/IBook#/media/File:IBookG3_Palourde2.png";
+
+  assert.equal(extractFileTitleFromUrl(commonsUrl), "File:IBookG3_Palourde2.png");
+  assert.equal(extractFileTitleFromUrl(wikipediaMediaUrl), "File:IBookG3_Palourde2.png");
+});
+
+test("sanitizeMetadataText decode le HTML de Commons", () => {
+  const rawValue = "No machine-readable author provided. <a href=\"//commons.wikimedia.org/wiki/User:Ocmey\">Ocmey</a> assumed &amp; credited.";
+  assert.equal(
+    sanitizeMetadataText(rawValue),
+    "No machine-readable author provided. Ocmey assumed & credited."
+  );
+});
+
+test("extractAssetFromApiResponse reconstruit l'attribution et la description", () => {
+  const response = {
+    query: {
+      pages: {
+        "903939": {
+          title: "File:IBookG3 Palourde2.png",
+          imageinfo: [
+            {
+              url: "https://upload.wikimedia.org/wikipedia/commons/b/b3/IBookG3_Palourde2.png",
+              descriptionurl: "https://commons.wikimedia.org/wiki/File:IBookG3_Palourde2.png",
+              descriptionshorturl: "https://commons.wikimedia.org/w/index.php?curid=903939",
+              extmetadata: {
+                ImageDescription: {
+                  value: "iBook G3 Open and Closed",
+                },
+                Credit: {
+                  value: "No machine-readable source provided. Own work assumed (based on copyright claims).",
+                },
+                Artist: {
+                  value: "No machine-readable author provided. <a href=\"//commons.wikimedia.org/wiki/User:Ocmey\" title=\"User:Ocmey\">Ocmey</a> assumed (based on copyright claims).",
+                },
+                LicenseShortName: {
+                  value: "Public domain",
+                },
+              },
+            },
+          ],
+        },
+      },
+    },
+  };
+
+  const asset = extractAssetFromApiResponse(response);
+
+  assert.equal(asset.fileName, "IBookG3_Palourde2.png");
+  assert.equal(asset.description, "iBook G3 Open and Closed");
+  assert.equal(
+    asset.attribution,
+    "By No machine-readable author provided. Ocmey assumed (based on copyright claims). - No machine-readable source provided. Own work assumed (based on copyright claims)., Public Domain, https://commons.wikimedia.org/w/index.php?curid=903939"
+  );
+});