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Hello Playwright：(2)简化部署方式
source link: https://blog.51cto.com/MyIO/5279218
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上次的文章发表后，有网友留言问，有不有简化部署的方式：
下面，提供 2 种可行的方案。
方案 1. Copy
其实 Playwright 默认是到C:\Users\用户名\AppData\Local\ms-playwright文件夹下查找依赖的浏览器，我们只需将本机文件夹复制到部署机器的对应文件夹即可。
但更简便的方式，是将浏览器也放到发布文件夹下一起部署。
具体做法如下：
- 修改代码，设置查找依赖浏览器路径的环境变量：
static async Task Main(string[] args)
{
Environment.SetEnvironmentVariable("PLAYWRIGHT_BROWSERS_PATH", Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "ms-playwright"));
var playwright = await Playwright.CreateAsync();
...
}
{
Environment.SetEnvironmentVariable("PLAYWRIGHT_BROWSERS_PATH", Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "ms-playwright"));
var playwright = await Playwright.CreateAsync();
...
}
- 修改项目文件，设置发布时执行 Task，复制 ms-playwright 文件夹到发布文件夹下:
<Target Name="PublishPlaywright" AfterTargets="Publish">
<ItemGroup>
<PlaywrightFiles Include="$(LOCALAPPDATA)\ms-playwright\**\*.*" />
</ItemGroup>
<Copy
SourceFiles="@(PlaywrightFiles)"
DestinationFiles="$(PublishDir)\ms-playwright\%(RecursiveDir)%(Filename)%(Extension)"
/>
</Target>
<ItemGroup>
<PlaywrightFiles Include="$(LOCALAPPDATA)\ms-playwright\**\*.*" />
</ItemGroup>
<Copy
SourceFiles="@(PlaywrightFiles)"
DestinationFiles="$(PublishDir)\ms-playwright\%(RecursiveDir)%(Filename)%(Extension)"
/>
</Target>
- 按照正常流程发布
现在将发布文件夹复制到另一台机器上，无需运行浏览器安装命令，直接运行控制台程序。
控制台程序将读取 EXE 当前所在文件夹下的ms-playwright文件夹，获取依赖的浏览器。
但是，这种方式有个明显的缺点——开发和部署的计算机的操作系统必须一致，比如, Windows 开发机上的浏览器文件不能发布到 Linux 上运行。
这时，可以采用方案 2。
方案 2. 自动安装
方案 2 还是需要运行浏览器安装命令，但是从手工运行改成由代码运行:
static async Task Main(string[] args)
{
Console.WriteLine("Start download chromium");
var exitCode = Microsoft.Playwright.Program.Main(new[] { "install", "chromium" });
if (exitCode != 0)
{
throw new Exception($"Playwright exited with code {exitCode}");
}
var playwright = await Playwright.CreateAsync();
...
}
{
Console.WriteLine("Start download chromium");
var exitCode = Microsoft.Playwright.Program.Main(new[] { "install", "chromium" });
if (exitCode != 0)
{
throw new Exception($"Playwright exited with code {exitCode}");
}
var playwright = await Playwright.CreateAsync();
...
}
需要注意的是，部署模式一定要选“独立”，否则对应操作系统的安装脚本不会复制到发布文件夹。（我发现 v1.21 存在此 bug，已提交 issue 并修复）
按照正常流程发布，直接运行控制台程序。
控制台程序将自动执行浏览器安装命令：
2 种简化部署方案，是否能够满足你的需要？欢迎留言反馈！
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