Allow for skipping update check

src/vpk/Velopack.Vpk/Program.cs

@@ -1,4 +1,4 @@
-using System.ComponentModel;
+using System.ComponentModel;
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Hosting;
@@ -38,6 +38,11 @@ public class Program
         .SetRecursive(true)
         .SetDescription("'yes' by instead of 'no' in non-interactive prompts.");
 
+    public static CliOption<bool> SkipUpdatesOption { get; }
+        = new CliOption<bool>("--skip-updates")
+        .SetRecursive(true)
+        .SetDescription("Skip update checks");
+
     public static CliDirective WindowsDirective { get; } = new CliDirective("win") {
         Description = "Show and run Windows specific commands."
     };
@@ -61,6 +66,7 @@ public class Program
         rootCommand.Options.Add(LegacyConsoleOption);
         rootCommand.Options.Add(YesOption);
         rootCommand.Options.Add(VerboseOption);
+        rootCommand.Options.Add(SkipUpdatesOption);
         rootCommand.Directives.Add(WindowsDirective);
         rootCommand.Directives.Add(LinuxDirective);
         rootCommand.Directives.Add(OsxDirective);
@@ -75,6 +81,7 @@ public class Program
         bool directiveWin = parseResult.GetResult(WindowsDirective) != null;
         bool directiveLinux = parseResult.GetResult(LinuxDirective) != null;
         bool directiveOsx = parseResult.GetResult(OsxDirective) != null;
+        bool skipUpdates = parseResult.GetValue(SkipUpdatesOption);
         rootCommand.TreatUnmatchedTokensAsErrors = true;
 
         var builder = Host.CreateEmptyApplicationBuilder(new HostApplicationBuilderSettings {
@@ -102,7 +109,7 @@ public class Program
             targetOs = RuntimeOs.OSX;
         }
 
-        builder.Services.AddSingleton(new VelopackDefaults(defaultYes, targetOs));
+        builder.Services.AddSingleton(new VelopackDefaults(defaultYes, targetOs, skipUpdates));
 
         var host = builder.Build();
         var provider = host.Services;
@@ -162,12 +169,12 @@ public class Program
         rootCommand.Add(flowCommand); 
 
         var cli = new CliConfiguration(rootCommand);
-        return await cli.InvokeAsync(args);
+        return await cli.InvokeAsync(args); 
 
         static void HideCommand(CliCommand command) => command.Hidden = true;
     }
 
-    private static void SetupConfig(IHostApplicationBuilder builder)
+    private static void SetupConfig(HostApplicationBuilder builder)
     {
         //builder.Configuration.AddJsonFile("vpk.json", optional: true);
         builder.Configuration.AddEnvironmentVariables("VPK_");
@@ -176,7 +183,7 @@ public class Program
         builder.Services.AddTransient(s => s.GetService<ILoggerFactory>().CreateLogger("vpk"));
     }
 
-    private static void SetupLogging(IHostApplicationBuilder builder, bool verbose, bool legacyConsole)
+    private static void SetupLogging(HostApplicationBuilder builder, bool verbose, bool legacyConsole)
     {
         var levelSwitch = new LoggingLevelSwitch {
             MinimumLevel = verbose ? LogEventLevel.Debug : LogEventLevel.Information
@@ -185,7 +192,7 @@ public class Program
             .MinimumLevel.ControlledBy(levelSwitch)
             .MinimumLevel.Override("Microsoft", LogEventLevel.Warning)
             .MinimumLevel.Override("System", LogEventLevel.Warning);
-
+        
         if (legacyConsole) {
             // spectre can have issues with redirected output, so we disable it.
             builder.Services.AddSingleton<IFancyConsole, BasicConsole>();
@@ -261,7 +268,7 @@ public static class ProgramCommandExtensions
             command.Initialize(logLevelSwitch);
 
             logger.LogInformation($"[bold]{Program.INTRO}[/]");
-            var updateCheck = new UpdateChecker(logger);
+            var updateCheck = new UpdateChecker(logger, defaults);
             await updateCheck.CheckForUpdates();
 
             command.SetProperties(ctx, config, defaults.TargetOs);

src/vpk/Velopack.Vpk/Updates/UpdateChecker.cs

@@ -6,16 +6,20 @@ namespace Velopack.Vpk.Updates;
 public class UpdateChecker
 {
     private readonly ILogger _logger;
+    private readonly VelopackDefaults _defaults;
     private IPackageSearchMetadata _cache;
 
-    public UpdateChecker(ILogger logger)
+    public UpdateChecker(ILogger logger, VelopackDefaults defaults)
     {
         _logger = logger;
+        _defaults = defaults;
     }
 
     public async Task<bool> CheckForUpdates()
     {
+        if (_defaults.SkipUpdates) return false;
         try {
+
             var myVer = VelopackRuntimeInfo.VelopackNugetVersion;
             var isPre = myVer.IsPrerelease || myVer.HasMetadata;
 

src/vpk/Velopack.Vpk/VelopackDefaults.cs

@@ -2,16 +2,18 @@
 
 public record VelopackDefaults
 {
+    public bool SkipUpdates { get; }
     public bool DefaultPromptValue { get; }
     public RuntimeOs TargetOs { get; }
 
     public VelopackDefaults(bool defaultPromptValue)
-        : this(defaultPromptValue, VelopackRuntimeInfo.SystemOs)
+        : this(defaultPromptValue, VelopackRuntimeInfo.SystemOs, true)
     {
     }
 
-    public VelopackDefaults(bool defaultPromptValue, RuntimeOs targetOs)
+    public VelopackDefaults(bool defaultPromptValue, RuntimeOs targetOs, bool skipUpdates)
     {
+        SkipUpdates = skipUpdates;
         DefaultPromptValue = defaultPromptValue;
         TargetOs = targetOs;
     }