Removes default config. Closes #1355

DevProxy/Commands/DevProxyCommand.cs

@@ -14,6 +14,7 @@ sealed class DevProxyCommand : RootCommand
     private readonly IProxyConfiguration _proxyConfiguration;
     private readonly ISet<UrlToWatch> _urlsToWatch;
     private readonly UpdateNotification _updateNotification;
+    private readonly IConfiguration _configuration;
     private WebApplication? _app;
 
     internal const string PortOptionName = "--port";
@@ -59,13 +60,15 @@ public DevProxyCommand(
         IProxyConfiguration proxyConfiguration,
         IServiceProvider serviceProvider,
         UpdateNotification updateNotification,
+        IConfiguration configuration,
         ILogger<DevProxyCommand> logger) : base("Start Dev Proxy")
     {
         _serviceProvider = serviceProvider;
         _plugins = plugins;
         _urlsToWatch = urlsToWatch;
         _proxyConfiguration = proxyConfiguration;
         _updateNotification = updateNotification;
+        _configuration = configuration;
         _logger = logger;
 
         ConfigureCommand();
@@ -84,6 +87,11 @@ private async Task<int> InvokeAsync(ParseResult parseResult, CancellationToken c
         {
             throw new InvalidOperationException("WebApplication instance is not set. Please provide it when invoking the command.");
         }
+        if ((_configuration as IConfigurationRoot)?.Providers.Any(p => p is FileConfigurationProvider) != true)
+        {
+            _logger.LogError("No configuration file found. Please create a devproxyrc.json file in the current directory.");
+            return 1;
+        }
         if (!_plugins.Any())
         {
             _logger.LogError("You haven't configured any plugins. Please add plugins to your configuration file. Dev Proxy will exit.");

DevProxy/Extensions/ConfigurationManagerExtensions.cs

@@ -38,6 +38,6 @@ public static ConfigurationManager ConfigureDevProxyConfig(this ConfigurationMan
             }
         }
 
-        throw new InvalidOperationException("No configuration file found. Please create a devproxyrc.json file in the current directory.");
+        return configuration;
     }
 }

DevProxy/Plugins/PluginServiceExtensions.cs

@@ -68,7 +68,8 @@ public static IServiceCollection AddPlugins(
 
         if (pluginReferences is null || !pluginReferences.Any(p => p.Enabled))
         {
-            throw new InvalidOperationException("No plugins configured or enabled. Please add a plugin to the configuration file.");
+            _ = services.AddSingleton<ISet<UrlToWatch>>(globallyWatchedUrls.ToHashSet());
+            return services;
         }
 
         var defaultUrlsToWatch = globallyWatchedUrls.ToHashSet();