.NET Core 3.0 预览版发布已经好些时日了,博客园也已将其用于生产环境中,可见 .NET Core 日趋成熟

回归正题,你想盖大楼吗?想 GitHub 首页一片绿吗?今天拿她玩玩自动提交代码至 GitHub。

安装项目模板
dotnet new --install "Microsoft.DotNet.Web.ProjectTemplates.3.0" dotnet new
worker
创建项目

直接使用 .NET CLI 创建一个 Work Service 的项目
dotnet new worker -o AutomaticPush
用 Visual Studio 2019 打开项目可以看到以下代码
// Program.cs public class Program { public static void Main(string[] args) {
CreateHostBuilder(args).Build().Run(); } public static IHostBuilder
CreateHostBuilder(string[] args) => Host.CreateDefaultBuilder(args)
.ConfigureServices((hostContext, services) => {
services.AddHostedService<Worker>(); }); }
* 从 3.0 起 WebHost 被 Host 取代了
* CreateHostBuilder创建 Host 并在ConfigureServices中调用.AddHostedService<Worker>()
// Worker.cs public class Worker : BackgroundService { private readonly
ILogger<Worker> _logger; public Worker(ILogger<Worker> logger) { _logger =
logger; } protected override async Task ExecuteAsync(CancellationToken
stoppingToken) { while (!stoppingToken.IsCancellationRequested) {
_logger.LogInformation("Worker running at: {time}", DateTimeOffset.Now); await
Task.Delay(1000, stoppingToken); } } }
Worker 继承了 BackgroundService,在 override ExecuteAsync 方法中完成自动提交的代码

.NET 下操作 Git 需要用到一个库 LibGit2Sharp,同时支持 .NET Framework 及 .NET Core

在项目中安装使用
Install-Package LibGit2Sharp
LibGit2Sharp 简单使用

*
Repository.Init(@"D:\Work") 在指定路径创建一个新的 Git 仓库,相当于 git init

*
Repository.Clone("https://github.com/Meowv/Blog.git", @"D:\Work")
拉取一个远程仓库到本地,相当于git clone

*
using (var repo = new Repository(@"D:\Blog")){} 打开本地存在的 Git 仓库

*
获取 Branch
using (var repo = new Repository(@"D:\Blog")) { var branches = repo.Branches;
foreach (var item in branches) { } }
*
获取 Commits
using (var repo = new Repository(@"D:\Blog")) { foreach (var commit in
repo.Commits) { } }
*
获取 Tags
using (var repo = new Repository(@"D:\Blog")) { foreach (var commit in
repo.Tags) { } }
*
更多操作请移步 https://github.com/libgit2/libgit2sharp

自动 Push 代码盖大楼

有了以上基础,就可以实现自动生成文件,push 代码到 GitHub 了。

新建一个配置文件,存放我们 GitHub 仓库以及账号密码等重要信息
{ "repository": "本地git仓库绝对路径", "username": "GitHub账号", "password": "GitHub密码",
"name": "提交人", "email": "邮箱" }
在ExecuteAsync中读取配置文件信息
var configurationRoot = new
ConfigurationBuilder().AddJsonFile("config.json").Build(); var path =
configurationRoot["repository"]; var username = configurationRoot["username"];
var password = configurationRoot["password"]; var name =
configurationRoot["name"]; var email = configurationRoot["email"];
git会自动检测文件变化,所以就先自动按日期创建.log文件,不断生成内容然后提交
while (!stoppingToken.IsCancellationRequested) { var fileName =
$"{DateTime.Now.ToString("dd")}.log"; var content =
DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss"); // 写入内容 WriteText(path, fileName,
content); using (var repo = new Repository(path)) { // Stage the file
Commands.Stage(repo, "*"); // Create the committer's signature and commit var
author = new Signature(name, email, DateTime.Now); var committer = author; //
Commit to the repository var commit = repo.Commit(content, author, committer);
// git push var options = new PushOptions { CredentialsProvider = new
CredentialsHandler((url, usernameFromUrl, types) => { return new
UsernamePasswordCredentials() { Username = username, Password = password }; })
}; repo.Network.Push(repo.Branches["master"], options); }
Console.WriteLine(content); // 等待60秒继续执行... await Task.Delay(60000,
stoppingToken); } private static void WriteText(string path, string fileName,
string content) { path = Path.Combine(path,
DateTime.Now.ToString(@"yyyy\\MM")); if (!Directory.Exists(path)) {
Directory.CreateDirectory(path); } var filePath = Path.Combine(path, fileName);
using var fs = new FileStream(filePath, FileMode.Append); using var sw = new
StreamWriter(fs); sw.WriteLine(content); }
至此,整个代码编写部分结束,项目发布后可以选择sc.exe注册为Windows服务,在这里推荐使用nssm(一个服务封装程序),好了,赶紧盖大楼去吧~~