DD.WellWorkover.Cloud/AsbCloudWebApi/Program.cs

using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.Hosting;
using System;
using System.Linq;

namespace AsbCloudWebApi
{
    public class Program
    {
        public static void Main(string[] args)
        {
            //new TraceListenerView(); // to trace mysterious errors
            if(args?.Length > 0 )
            {
                if (args.Contains("db_init")) { 
                    var connectionStringName = "DefaultConnection";
                
                    IConfigurationRoot configuration = new ConfigurationBuilder()
                      .SetBasePath(AppDomain.CurrentDomain.BaseDirectory)
                      .AddJsonFile("appsettings.json")
                      .Build();

                    AsbCloudInfrastructure.DependencyInjection.MakeContext(configuration.GetConnectionString(connectionStringName));
                    Console.WriteLine("Óñïåøíî âûïîëíåíî.");
                    return;
                }
                WriteHelp();
                return;
            }            
            
            CreateHostBuilder(args).Build().Run();
        }

        public static IHostBuilder CreateHostBuilder(string[] args) =>
            Host.CreateDefaultBuilder(args)
                .ConfigureWebHostDefaults(webBuilder =>
                {
                    webBuilder.UseStartup<Startup>();
                });

        private static void WriteHelp()
        {
            Console.WriteLine("Ïðè çàïóñêå áåç êëþ÷åé ïðîãðàììà ïðîñòî ñòàðòóåò â îáû÷íîì ðåæèìå.");
            Console.WriteLine("Êëþ÷è äëÿ çàïóñêà:");
            Console.WriteLine("db_init - ñîçäàòü êîíòåêñò ÁÄ è âûéòè.");
            Console.WriteLine("Êîíòåêñò ñîçäàñòñÿ äëÿ ñòðîêè ïîäêëþ÷åíèÿ \"DefaultConnection\"");
            Console.WriteLine("Ñîçäàíèå êîíòåêñòà ïðèâåäåò ê ñîçäàíèþ ÁÄ, åñëè åé íåò");
            Console.WriteLine("è ïðèìåíåíèþ âñåõ ìèãðàöèé, åñëè ÁÄ óæå åñòü.");
            Console.WriteLine("Äëÿ ñîçäàíèÿ êîíòåêñòà â ÁÄ äîëæíà áûòü ñîçäàíà ñõåìà public");
            Console.WriteLine("");
        }
    }
}