feat(baoyu-post-to-wechat,baoyu-post-to-weibo,baoyu-post-to-x): cascade Mermaid PNG preprocessing into publishing pipelines

skills/baoyu-post-to-x/SKILL.md

@@ -1,7 +1,7 @@
 ---
 name: baoyu-post-to-x
 description: Posts content and articles to X (Twitter). Supports regular posts with images/videos and X Articles (long-form Markdown). In Codex, honor explicit requests for the Codex Chrome plugin/@chrome by using the Chrome Extension workflow; otherwise use Chrome Computer Use when available and fall back to real Chrome CDP scripts only when allowed. Use when user asks to "post to X", "tweet", "publish to Twitter", or "share on X".
-version: 1.57.2
+version: 1.58.0
 metadata:
   openclaw:
     homepage: https://github.com/JimLiu/baoyu-skills#baoyu-post-to-x

skills/baoyu-post-to-x/scripts/md-to-html.ts

@@ -15,6 +15,9 @@ import remarkCjkFriendly from 'remark-cjk-friendly';
 import remarkParse from 'remark-parse';
 import remarkStringify from 'remark-stringify';
 
+import { preprocessMermaidInMarkdown } from 'baoyu-md';
+import { closeRenderer, renderMermaidToPng } from 'baoyu-chrome-cdp/mermaid';
+
 interface ImageInfo {
   placeholder: string;
   localPath: string;
@@ -318,10 +321,29 @@ export async function parseMarkdown(
     coverImagePath = findCoverImageNearMarkdown(baseDir);
   }
 
+  const { markdown: mermaidProcessedBody, images: mermaidImages } =
+    await preprocessMermaidInMarkdown(body, {
+      baseDir,
+      renderFn: renderMermaidToPng,
+      onError: (error, block) => {
+        const message = error instanceof Error ? error.message : String(error);
+        console.error(
+          `[md-to-html] mermaid render failed (${block.code.slice(0, 40).replace(/\s+/g, ' ')}…): ${message}`,
+        );
+      },
+    });
+
+  if (mermaidImages.length > 0) {
+    const fresh = mermaidImages.filter((image) => !image.cached).length;
+    console.error(
+      `[md-to-html] mermaid: ${mermaidImages.length} block(s), ${fresh} rendered, ${mermaidImages.length - fresh} cached`,
+    );
+  }
+
   const images: Array<{ src: string; alt: string; blockIndex: number }> = [];
   let imageCounter = 0;
 
-  const { html, totalBlocks } = convertMarkdownToHtml(body, (src, alt) => {
+  const { html, totalBlocks } = convertMarkdownToHtml(mermaidProcessedBody, (src, alt) => {
     const placeholder = `XIMGPH_${++imageCounter}`;
     images.push({ src, alt, blockIndex: -1 });
     return placeholder;
@@ -460,8 +482,12 @@ async function main(): Promise<void> {
 }
 
 if (process.argv[1] && import.meta.url === pathToFileURL(process.argv[1]).href) {
-  await main().catch((err) => {
+  try {
+    await main();
+  } catch (err) {
     console.error(`Error: ${err instanceof Error ? err.message : String(err)}`);
-    process.exit(1);
-  });
+    process.exitCode = 1;
+  } finally {
+    await closeRenderer();
+  }
 }

skills/baoyu-post-to-x/scripts/package.json

@@ -4,6 +4,7 @@
   "type": "module",
   "dependencies": {
     "baoyu-chrome-cdp": "^0.1.0",
+    "baoyu-md": "^0.1.0",
     "front-matter": "^4.0.2",
     "highlight.js": "^11.11.1",
     "marked": "^15.0.6",