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JohnCampionJrJohnCampionJr
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Added command line parameters
These will allow for some new debugging options in VS Code
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3 files changed

+168
-8
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3 files changed

+168
-8
lines changed

‎CommandLine.cs

Lines changed: 145 additions & 0 deletions
Original file line numberDiff line numberDiff line change
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// original source: https://www.codeproject.com/Articles/3111/C-NET-Command-Line-Arguments-Parser
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using System;
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using System.Collections.Specialized;
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using System.Text.RegularExpressions;
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namespace CommandLine
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{
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public static class Arguments
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{
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public static bool TryGetOptions(string[] args, bool inConsole, out string mode, out ushort port, out bool https)
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{
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var arguments = Parse(args);
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var validArgs = true;
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mode = arguments["m"] ?? arguments["mode"] ?? "start";
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https = arguments["http"] == null && arguments["https"] != null;
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var portString = arguments["p"] ?? arguments["port"] ?? "8080";
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if (mode != "start" && mode != "attach" && mode != "kill")
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{
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if (inConsole)
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{
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Console.ForegroundColor = ConsoleColor.Red;
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Console.WriteLine("Invalid mode; Allowed values are start | attach | kill");
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Console.ResetColor();
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}
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validArgs = false;
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}
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if (!ushort.TryParse(portString, out port) || port < 80)
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{
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if (inConsole)
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{
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Console.ForegroundColor = ConsoleColor.Red;
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Console.WriteLine("Invalid port number specified.");
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Console.ResetColor();
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}
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validArgs = false;
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}
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if (arguments["h"] != null || arguments["help"] != null) validArgs = false;
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if (inConsole && !validArgs)
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{
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Console.WriteLine();
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Console.WriteLine(" Mode Argument Options (Defaults to start)");
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Console.WriteLine(" -m | --mode start -> Start the SPA server and proxy to that.");
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Console.WriteLine(" -m | --mode attach -> Attach to existing SPA server");
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Console.WriteLine(" -m | --mode kill -> Shutdown any existing SPA server on the specified port (used after debugging in VS Code)");
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Console.WriteLine();
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Console.WriteLine(" Port Argument (Defaults to 8080)");
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Console.WriteLine(" -p | --port 8080 -> Specify what port to start or attach to, minimum of 80");
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Console.WriteLine();
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Console.WriteLine(" HTTPS (Defaults to false)");
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Console.WriteLine(" -https -> Uses HTTPS");
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Console.WriteLine();
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}
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return validArgs;
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}
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public static StringDictionary Parse(string[] args)
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{
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var parameters = new StringDictionary();
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Regex splitter = new Regex(@"^-{1,2}|^/|=|:",
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RegexOptions.IgnoreCase | RegexOptions.Compiled);
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Regex remover = new Regex(@"^['""]?(.*?)['""]?$",
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RegexOptions.IgnoreCase | RegexOptions.Compiled);
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string parameter = null;
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string[] parts;
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// Valid parameters forms:
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// {-,/,--}param{ ,=,:}((",')value(",'))
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// Examples:
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// -param1 value1 --param2 /param3:"Test-:-work"
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// /param4=happy -param5 '--=nice=--'
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foreach (string txt in args)
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{
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// Look for new parameters (-,/ or --) and a
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// possible enclosed value (=,:)
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parts = splitter.Split(txt, 3);
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switch (parts.Length)
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{
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// Found a value (for the last parameter
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// found (space separator))
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case 1:
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if (parameter != null)
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{
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if (!parameters.ContainsKey(parameter))
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{
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parts[0] =
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remover.Replace(parts[0], "$1");
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parameters.Add(parameter, parts[0]);
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}
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parameter = null;
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}
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// else Error: no parameter waiting for a value (skipped)
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break;
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// Found just a parameter
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case 2:
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// The last parameter is still waiting.
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// With no value, set it to true.
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if (parameter != null && !parameters.ContainsKey(parameter))
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parameters.Add(parameter, "true");
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parameter = parts[1];
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break;
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// Parameter with enclosed value
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case 3:
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// The last parameter is still waiting.
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// With no value, set it to true.
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if (parameter != null && !parameters.ContainsKey(parameter))
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parameters.Add(parameter, "true");
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parameter = parts[1];
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// Remove possible enclosing characters (",')
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if (!parameters.ContainsKey(parameter))
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{
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parts[2] = remover.Replace(parts[2], "$1");
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parameters.Add(parameter, parts[2]);
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}
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parameter = null;
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break;
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}
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}
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// In case a parameter is still waiting
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if (parameter != null && !parameters.ContainsKey(parameter))
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parameters.Add(parameter, "true");
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return parameters;
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}
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}
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}

‎Program.cs

Lines changed: 9 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -1,18 +1,22 @@
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Threading.Tasks;
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using Microsoft.AspNetCore.Hosting;
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using Microsoft.Extensions.Configuration;
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using Microsoft.Extensions.Hosting;
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using Microsoft.Extensions.Logging;
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using VueCliMiddleware;
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namespace AspNetCoreVueStarter
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{
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public class Program
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{
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public static void Main(string[] args)
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{
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if (!CommandLine.Arguments.TryGetOptions(args, true, out string mode, out ushort port, out bool https)) return;
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if (mode == "kill") {
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Console.WriteLine($"Killing process serving port {port}...");
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PidUtils.KillPort(port, true, true);
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return;
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}
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CreateHostBuilder(args).Build().Run();
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}
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‎Startup.cs

Lines changed: 14 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -34,6 +34,9 @@ public void ConfigureServices(IServiceCollection services)
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// This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
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public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
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{
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_ = CommandLine.Arguments.TryGetOptions(System.Environment.GetCommandLineArgs(), false, out string mode, out ushort port, out bool https);
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if (env.IsDevelopment())
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{
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app.UseDeveloperExceptionPage();
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app.UseHsts();
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}
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// app.UseHttpsRedirection();
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if (https) app.UseHttpsRedirection();
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app.UseStaticFiles();
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if (!env.IsDevelopment())
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{
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if (env.IsDevelopment())
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{
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// run npm process with client app
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spa.UseVueCli(npmScript: "serve", port: 8080, forceKill: true);
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if (mode == "start") {
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spa.UseVueCli(npmScript: "serve", port: port, forceKill: true, https: https);
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}
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// if you just prefer to proxy requests from client app, use proxy to SPA dev server instead,
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// app should be already running before starting a .NET client:
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// spa.UseProxyToSpaDevelopmentServer("http://localhost:8080"); // your Vue app port
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// run npm process with client app
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if (mode == "attach") {
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spa.UseProxyToSpaDevelopmentServer($"{(https ? "https" : "http")}://localhost:{port}"); // your Vue app port
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}
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}
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});
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}

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