vite works <3

2020-11-01 23:23:36 +01:00
parent d247ffc20f
commit 3571cb43ec
39 changed files with 1220 additions and 420 deletions
@@ -0,0 +1,109 @@
+using Microsoft.AspNetCore.Hosting;
+using Microsoft.Extensions.Hosting;
+using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Options;
+using Newtonsoft.Json;
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace Zero.Web.DevServer
+{
+  public class ZeroDevService : IHostedService
+  {
+    IWebHostEnvironment env;
+    IOptions<ZeroDevOptions> options;
+    ZeroDevProcess viteProcess;
+    ILogger<ZeroDevService> logger;
+    string workingDirectory;
+
+
+    public ZeroDevService(IWebHostEnvironment env, IOptions<ZeroDevOptions> options, ILogger<ZeroDevService> logger)
+    {
+      this.env = env;
+      this.options = options;
+      this.workingDirectory = options.Value.WorkingDirectory;
+      this.logger = logger;
+    }
+
+
+    public async Task StartAsync(CancellationToken cancellationToken)
+    {
+      // this is a development-time service,
+      // therefore no way to enable it in production
+      if (!env.IsDevelopment())
+      {
+        return;
+      }
+
+      Version npmVersion = await FindNpmVersion();
+
+      if (npmVersion == null)
+      {
+        // TODO report and return
+      }
+
+      logger.LogDebug("Found npm version {version}", npmVersion);
+
+      viteProcess = await StartDevServer(options.Value.Port);
+    }
+
+    public Task StopAsync(CancellationToken cancellationToken)
+    {
+      return Task.CompletedTask;
+    }
+
+
+    /// <summary>
+    /// Get the node version from the system
+    /// </summary>
+    async Task<Version> FindNpmVersion()
+    {
+      Version version = null;
+
+      ZeroDevProcess process = new ZeroDevProcess(workingDirectory, "npm").Argument("-v").Capture((value, err) =>
+      {
+        if (version == null && !value.Contains("not recognized") && Version.TryParse(value, out Version _version))
+        {
+          version = _version;
+        }
+      });
+
+      await process.ExecuteAsync();
+
+      return version;
+    }
+
+
+    /// <summary>
+    /// Starts the vite dev server which also support HMR
+    /// </summary>
+    async Task<ZeroDevProcess> StartDevServer(int port)
+    {
+      // if the port we want to use is occupied, terminate the process utilizing that port.
+      // this occurs when "stop" is used from the debugger and the middleware does not have the opportunity to kill the process
+      PidUtils.KillPort((ushort)port, true);
+
+      // get all plugins which need to be passed to vite
+      var plugins = new List<dynamic>()
+      {
+        new
+        {
+          path = Path.Combine(env.ContentRootPath, "../", "ViteZero.Plugin", "vite.plugin.js")
+        }
+      };
+
+      // create and run the vite script
+      ZeroDevProcess process = new ZeroDevProcess(workingDirectory, "npm", options.Value.ForwardLog)
+        .Argument("run dev")
+        .EnvVar("PORT", options.Value.Port.ToString())
+        .EnvVar("ZERO_PLUGINS", JsonConvert.SerializeObject(plugins));
+
+      await process.RunAsync("running at", TimeSpan.FromMinutes(5));
+
+      return process;
+    }
+  }
+}