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