.NET Core下操作Git，自动提交代码到 GitHub
- 2019 年 10 月 3 日
- 筆記
.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 LibGit2SharpLibGit2Sharp 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~~
