优化浏览器策略

utils/markdown_to_image.py

@@ -160,30 +160,57 @@ async def html_to_image(html_file, output_image):
     """
     使用 Playwright 加载 HTML 文件并截图（异步）。
     """
-    async with async_playwright() as p:
-        possible_chrome_paths = [
-            r"C:\Users\Liu_WIN10\AppData\Local\Google\Chrome\Application\chrome.exe",
-            r"C:\Users\Liu-OPEN\AppData\Local\Google\Chrome\Application\chrome.exe",
-            r"C:\Program Files\Google\Chrome\Application\chrome.exe",
-            r"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe"
-        ]
-        browser_path = None
-        for path in possible_chrome_paths:
-            if os.path.exists(path):
-                browser_path = path
-                print(f"找到浏览器路径: {browser_path}")
-                break
-        if browser_path:
-            browser = await p.chromium.launch(executable_path=browser_path)
-        else:
-            print("未找到指定的Chrome浏览器路径，使用默认浏览器")
-            browser = await p.chromium.launch()
-        page = await browser.new_page()
-        await page.goto(f'file://{os.path.abspath(html_file)}')
-        await page.set_viewport_size({"width": 750, "height": 800})
-        await page.wait_for_timeout(500)
-        await page.screenshot(path=output_image, full_page=True)
-        await browser.close()
+    try:
+        async with async_playwright() as p:
+            # 检查系统类型
+            if os.name == 'nt':  # Windows
+                possible_chrome_paths = [
+                    r"C:\Users\Liu_WIN10\AppData\Local\Google\Chrome\Application\chrome.exe",
+                    r"C:\Users\Liu-OPEN\AppData\Local\Google\Chrome\Application\chrome.exe",
+                    r"C:\Program Files\Google\Chrome\Application\chrome.exe",
+                    r"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe"
+                ]
+                browser_path = None
+                for path in possible_chrome_paths:
+                    if os.path.exists(path):
+                        browser_path = path
+                        print(f"找到浏览器路径: {browser_path}")
+                        break
+                if browser_path:
+                    browser = await p.chromium.launch(executable_path=browser_path)
+                else:
+                    print("未找到指定的Chrome浏览器路径，尝试使用默认浏览器")
+                    # 尝试安装 Playwright 浏览器
+                    try:
+                        import subprocess
+                        print("正在安装 Playwright 浏览器...")
+                        subprocess.run(["playwright", "install"], check=True)
+                        print("Playwright 浏览器安装完成")
+                    except Exception as install_error:
+                        print(f"安装 Playwright 浏览器失败: {install_error}")
+                    browser = await p.chromium.launch()
+            else:  # Linux
+                try:
+                    # 尝试安装 Playwright 浏览器
+                    import subprocess
+                    print("正在安装 Playwright 浏览器...")
+                    subprocess.run(["playwright", "install"], check=True)
+                    print("Playwright 浏览器安装完成")
+                except Exception as install_error:
+                    print(f"安装 Playwright 浏览器失败: {install_error}")
+                browser = await p.chromium.launch()
+                
+            page = await browser.new_page()
+            await page.goto(f'file://{os.path.abspath(html_file)}')
+            await page.set_viewport_size({"width": 750, "height": 800})
+            await page.wait_for_timeout(500)
+            await page.screenshot(path=output_image, full_page=True)
+            await browser.close()
+    except Exception as e:
+        print(f"浏览器操作失败: {e}")
+        if "Executable doesn't exist" in str(e):
+            print("请运行 'playwright install' 命令安装必要的浏览器组件")
+        raise
 
 
 # 主函数：从字符串转换 Markdown 到图片（异步版）