Migrations: Using name with Script-Migration doesn't work (only ID)

[warrior1305]

I use Entity Framework Core and PostgreSQL

project.json

{
    "authors": [ "sam" ],
    "buildOptions": {
        "emitEntryPoint": "true"
    },
    "dependencies": {
        "Microsoft.EntityFrameworkCore": "1.0.0",
        "Microsoft.EntityFrameworkCore.Design": "1.0.0-preview2-final",

        "Npgsql.EntityFrameworkCore.PostgreSQL": "1.0.1",
        "Npgsql.EntityFrameworkCore.PostgreSQL.Design": "1.0.1",

        "Microsoft.AspNetCore.Diagnostics.EntityFrameworkCore": "1.0.0",

        "Microsoft.AspNetCore.Identity.EntityFrameworkCore": "1.0.0",

        "Microsoft.Extensions.Configuration.Abstractions": "1.0.0",
        "Microsoft.Extensions.Configuration.EnvironmentVariables": "1.0.0",
        "Microsoft.Extensions.Configuration.Json": "1.0.0",

        "Microsoft.Extensions.Logging": "1.0.0",
        "Microsoft.Extensions.Logging.Console": "1.0.0",
        "Microsoft.Extensions.Logging.Debug": "1.0.0",

        "DelegateDecompiler": "0.18.1",
        "DelegateDecompiler.EntityFramework": "0.18.1",
    },
    "description": "Xrm.Hcs.DataLayer Class Library",
    "frameworks": {
        "net451": {
            "frameworkAssemblies": {
                "Microsoft.CSharp": "4.0.0.0",
                "System.Collections": "4.0.0.0",
                "System.Linq": "4.0.0.0",
                "System.Threading": "4.0.0.0",
                "System.Runtime": "4.0.10.0",
                "System.ComponentModel.DataAnnotations": "4.0.0.0",
                "System.Data": "4.0.0.0",
                "System.Transactions": "4.0.0.0"
            }
        }
    },
    "tools": {
        "Microsoft.EntityFrameworkCore.Tools": "1.0.0-preview2-final"
    },
    "version": "1.0.0-*"
}

Startup.cs

       public void ConfigureServices(IServiceCollection services)
       {
            services.AddDbContext<MyContext>(options => options.UseNpgsql(Configuration["ConnectionStrings:PgSqlServer"]));
        }

MyContext.cs

    public class HcsContext : DbContext
    {
        public HcsContext(DbContextOptions<HcsContext> contextOptions) : base(contextOptions)
        {
        }

        protected override void OnModelCreating(ModelBuilder modelBuilder)
        {
            base.OnModelCreating(modelBuilder);
            // some configs
            foreach (var fk in modelBuilder.Model.GetEntityTypes().SelectMany(x=>x.GetForeignKeys()))
            {
                fk.DeleteBehavior = DeleteBehavior.Restrict;
            }
        }
    }

When I run command:
dotnet ef migrations script V038Migration V039Migration -o Migrations/Sql.Up/migration_v038_to_v039.sql
everything is okay: there are no errors. When command finished, it returns "Done".
But migration_v038_to_v039.sql is empty.
If I generate *.cs class with migration code - it is not empty (and it has code i expected)

But if I run next command:
dotnet ef migrations script V039Migration V038Migration -o Migrations/Sql.Down/migration_v039_to_v038.sql
then migration_v039_to_v038.sql will be not empty

[divega]

@warrior1305 is your model really empty as shown in the empty DbContext? If it isn't, can you provide it?

[warrior1305]

I found solution of my problem:
for creating up scripts I should run:
dotnet ef migrations script 20160803073244_V038Migration 20160728115142_V037Migration

But for genering down scripts I should run:
dotnet ef migrations script V038Migration V037Migration //without timestamp

But this don't make me happy, because up scripts are not right: they duplicate sql code.
Example:
When I create scripts from v001 to v002, in 001_002.sql I have up script from v001.cs and v002.cs
When I create scripts from v002 to v003, in 002_003.sql I have up script from v002.cs and v003.cs

There is my test project with generated migrations:
DataLayerTest.zip

[bricelam]

Oops, I just commented on the wrong issue. Sorry, @warrior1305.
(Removing comments...)

[bricelam]

This has regressed at some point. Both migration names and ids should be supported. This is particularly bad because PowerShell will expand the name, not the id.