perf(pic): 使用 cnb.cool 作为图床

package.json

@@ -6,7 +6,7 @@
     "dev": "astro dev",
     "start": "astro dev",
     "check": "astro check",
-    "build": "astro build --verbose && pagefind --site dist",
+    "build": "astro build --verbose && node scripts/rewrite-built-image-links.js && pagefind --site dist",
     "preview": "astro preview",
     "astro": "astro",
     "type-check": "tsc --noEmit --isolatedDeclarations",

scripts/rewrite-built-image-links.js

@@ -0,0 +1,70 @@
+import fs from "node:fs/promises";
+import path from "node:path";
+
+const DIST_DIR = path.resolve("dist");
+const REMOTE_RAW_ORIGIN = "https://cnb.cool/CLN-Grated/blog-fuwari/-/git/raw/main/public";
+const TEXT_FILE_EXTENSIONS = new Set([".html", ".xml", ".json", ".js", ".css", ".txt"]);
+const PIC_PATH_PATTERN = /(?:https:\/\/blog\.adclosenn\.top)?\/pic\/([^"'\s)<>]+)/g;
+
+async function walk(dir) {
+  const entries = await fs.readdir(dir, { withFileTypes: true });
+  const files = await Promise.all(
+    entries.map(async (entry) => {
+      const fullPath = path.join(dir, entry.name);
+      if (entry.isDirectory()) {
+        return walk(fullPath);
+      }
+      return [fullPath];
+    }),
+  );
+
+  return files.flat();
+}
+
+async function rewriteFile(filePath) {
+  const ext = path.extname(filePath).toLowerCase();
+  if (!TEXT_FILE_EXTENSIONS.has(ext)) {
+    return 0;
+  }
+
+  const original = await fs.readFile(filePath, "utf8");
+  let replacements = 0;
+  const rewritten = original.replace(PIC_PATH_PATTERN, (_match, rest) => {
+    replacements += 1;
+    return `${REMOTE_RAW_ORIGIN}/pic/${rest}`;
+  });
+
+  if (rewritten === original) {
+    return 0;
+  }
+
+  await fs.writeFile(filePath, rewritten, "utf8");
+  return replacements;
+}
+
+async function main() {
+  try {
+    await fs.access(DIST_DIR);
+  } catch {
+    console.error(`[rewrite-built-image-links] dist directory not found: ${DIST_DIR}`);
+    process.exit(1);
+  }
+
+  const files = await walk(DIST_DIR);
+  let touchedFiles = 0;
+  let totalReplacements = 0;
+
+  for (const filePath of files) {
+    const replacements = await rewriteFile(filePath);
+    if (replacements > 0) {
+      touchedFiles += 1;
+      totalReplacements += replacements;
+    }
+  }
+
+  console.log(
+    `[rewrite-built-image-links] Replaced ${totalReplacements} link(s) in ${touchedFiles} file(s).`,
+  );
+}
+
+await main();