feat: upload lakeboard cover image to github

lib/download.js

@@ -1,9 +1,10 @@
 const lodash = require('lodash');
 const Queue = require('queue');
 const filenamify = require('filenamify');
+const crypto = require('crypto');
 const YuqueClient = require('./yuque');
 const GitHubClient = require('./github')
-const { isPost, decoratePost, formatRaw, formatDate } = require('./utils');
+const { isPost, decoratePost, formatRaw, formatDate, downloadImage } = require('./utils');
 
 // 需要提取的文章属性字段
 const PICK_PROPERTY = [
@@ -129,9 +130,14 @@ class Downloader {
             // }
 
             let mdBody = formatRaw(body);
-            // 脑图处理
+            // 处理脑图
             if (format === 'lakeboard' && cover) {
-                mdBody = `![${title}](${cover})`
+                // 上传图片到github
+                const content = await downloadImage(cover);
+                const imageName = crypto.randomUUID() + cover.split('.').pop();
+                const imageUrl = `${repo_name}/_images/${imageName}`;
+                await gh.writeFile(imageUrl, content)
+                mdBody = `![${title}](${imageUrl})`
             }
             const content = decoratePost(title, mdBody, `https://www.yuque.com/${client.namespace}/${slug}`)
             await gh.writeFile(`${repo_name}/${_fullName}`, content)

lib/utils.js

@@ -1,5 +1,7 @@
 const moment = require('moment');
 const lodash = require('lodash');
+const axios = require('axios');
+
 const formatMarkdown = (() => {
     let prettier;
     try {
@@ -47,3 +49,14 @@ exports.isPost = (post) => {
 exports.formatDate = (date) => {
     return moment(new Date(date).toISOString()).format('YYYY-MM-DD');
 }
+
+exports.downloadImage = (src) => {
+    return new Promise((resolve, reject) => {
+        axios.get(src).then((res) => {
+            const base64 = Buffer.from(res.data, 'binary').toString('base64');
+            resolve(`data:image/png;base64,${base64}`)
+        }).catch((err) => {
+            reject(err);
+        })
+    })
+  }

package.json

@@ -11,6 +11,7 @@
   "license": "ISC",
   "dependencies": {
     "@yuque/sdk": "^1.1.1",
+    "axios": "^1.6.8",
     "dotenv-flow": "^3.2.0",
     "filenamify": "^4.1.0",
     "github-api": "^3.4.0",