adding migrate command

Selector.CLI/Command/MigrateCommand.cs

@@ -0,0 +1,55 @@
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.Logging;
+using Selector.CLI.Extensions;
+using Selector.Model;
+using System;
+using System.CommandLine;
+using System.CommandLine.Invocation;
+
+namespace Selector.CLI
+{
+    public class MigrateCommand : Command
+    {
+        public MigrateCommand(string name, string description = null) : base(name, description)
+        {
+            var connectionString = new Option<string>("--connection", "database to migrate");
+            connectionString.AddAlias("-c");
+            AddOption(connectionString);
+
+            Handler = CommandHandler.Create((string connectionString) => Execute(connectionString));
+        }
+
+        public static int Execute(string connectionString)
+        {
+            try
+            {
+                var context = new CommandContext().WithLogger().WithDb(connectionString).WithLastfmApi();
+                var logger = context.Logger.CreateLogger("Scrobble");
+
+                using var db = new ApplicationDbContext(context.DatabaseConfig.Options, context.Logger.CreateLogger<ApplicationDbContext>());
+
+                logger.LogInformation("Preparing to migrate ({})", db.Database.GetConnectionString());
+
+                Console.WriteLine("Migrate database? (y/n) ");
+                var input = Console.ReadLine();
+
+                if (input.Trim().Equals("y", StringComparison.OrdinalIgnoreCase))
+                {
+                    logger.LogInformation("Migrating database");
+                    db.Database.Migrate();
+                }
+                else
+                {
+                    logger.LogInformation("Exiting");
+                }
+            }
+            catch (Exception ex)
+            {
+                Console.WriteLine(ex);
+                return 1;
+            }
+
+            return 0;
+        }
+    }
+}

Selector.CLI/Command/Scrobble/ScrobbleSave.cs

@@ -52,7 +52,7 @@ namespace Selector.CLI
                 var context = new CommandContext().WithLogger().WithDb().WithLastfmApi();
                 var logger = context.Logger.CreateLogger("Scrobble");
 
-                var db = new ApplicationDbContext(context.DatabaseConfig.Options, context.Logger.CreateLogger<ApplicationDbContext>());
+                using var db = new ApplicationDbContext(context.DatabaseConfig.Options, context.Logger.CreateLogger<ApplicationDbContext>());
 
                 logger.LogInformation("Running from {0} to {1}", from, to);
 

Selector.CLI/Extensions/CommandContextExtensions.cs

@@ -34,7 +34,7 @@ namespace Selector.CLI.Extensions
             return context;
         }
 
-        public static CommandContext WithDb(this CommandContext context)
+        public static CommandContext WithDb(this CommandContext context, string connectionString = null)
         {
             if (context.Config is null)
             {
@@ -42,7 +42,7 @@ namespace Selector.CLI.Extensions
             }
 
             context.DatabaseConfig = new DbContextOptionsBuilder<ApplicationDbContext>();
-            context.DatabaseConfig.UseNpgsql(context.Config.DatabaseOptions.ConnectionString);
+            context.DatabaseConfig.UseNpgsql(string.IsNullOrWhiteSpace(connectionString) ?  context.Config.DatabaseOptions.ConnectionString : connectionString);
 
             return context;
         }

Selector.CLI/Program.cs

@@ -8,6 +8,7 @@ namespace Selector.CLI
         {
             var cmd = new HostRootCommand();
             cmd.AddCommand(new ScrobbleCommand("scrobble", "Manipulate scrobbles"));
+            cmd.AddCommand(new MigrateCommand("migrate", "Migrate database"));
 
             cmd.Invoke(args);
         }