DbMigrator creates the initial migration if no migration exists

framework/src/Volo.Abp.Cli.Core/Volo/Abp/Cli/AbpCliCoreModule.cs

@@ -40,6 +40,7 @@ namespace Volo.Abp.Cli
                 options.Commands["translate"] = typeof(TranslateCommand);
                 options.Commands["build"] = typeof(BuildCommand);
                 options.Commands["bundle"] = typeof(BundleCommand);
+                options.Commands["create-migration-and-run-migrator"] = typeof(CreateMigrationAndRunMigrator);
             });
         }
     }

framework/src/Volo.Abp.Cli.Core/Volo/Abp/Cli/Commands/CreateMigrationAndRunMigrator.cs

@@ -0,0 +1,57 @@
+using System;
+using System.IO;
+using System.Linq;
+using System.Threading.Tasks;
+using Volo.Abp.Cli.Args;
+using Volo.Abp.Cli.Utils;
+using Volo.Abp.DependencyInjection;
+
+namespace Volo.Abp.Cli.Commands
+{
+    public class CreateMigrationAndRunMigrator : IConsoleCommand, ITransientDependency
+    {
+        public virtual async Task ExecuteAsync(CommandLineArgs commandLineArgs)
+        {
+            if (commandLineArgs.Target.IsNullOrEmpty())
+            {
+                throw new CliUsageException(
+                    "DbMigrations folder path is missing!"
+                );
+            }
+
+            var dbMigratorProjectPath = GetDbMigratorProjectPath(commandLineArgs.Target);
+
+            if (dbMigratorProjectPath == null)
+            {
+                throw new Exception("DbMigrator is not found!");
+            }
+
+            CmdHelper.RunCmd("cd \"" + commandLineArgs.Target + "\" && dotnet ef migrations add Initial -s " + dbMigratorProjectPath);
+            CmdHelper.RunCmd("cd \"" + Path.GetDirectoryName(dbMigratorProjectPath) + "\" && dotnet run");
+        }
+
+        private string GetDbMigratorProjectPath(string dbMigrationsFolderPath)
+        {
+            var srcFolder = Directory.GetParent(dbMigrationsFolderPath);
+
+            var dbMigratorFolderPath = Directory.GetDirectories(srcFolder.FullName).FirstOrDefault(d => d.EndsWith(".DbMigrator"));
+
+            if (dbMigratorFolderPath == null)
+            {
+                return null;
+            }
+
+            return Directory.GetFiles(dbMigratorFolderPath).FirstOrDefault(f => f.EndsWith(".csproj"));
+        }
+
+        public string GetUsageInfo()
+        {
+            return string.Empty;
+        }
+
+        public string GetShortDescription()
+        {
+            return string.Empty;
+        }
+    }
+}

templates/app/aspnet-core/src/MyCompanyName.MyProjectName.Domain/Data/MyProjectNameDbMigrationService.cs

@@ -1,5 +1,9 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.IO;
 using System.Linq;
+using System.Runtime.InteropServices;
 using System.Threading.Tasks;
 using Microsoft.Extensions.Logging;
 using Microsoft.Extensions.Logging.Abstractions;
@@ -35,6 +39,19 @@ namespace MyCompanyName.MyProjectName.Data
 
         public async Task MigrateAsync()
         {
+            try
+            {
+                if (!await CheckMigrationsAsync())
+                {
+                    await AddInitialMigration();
+                    return;
+                }
+            }
+            catch (Exception e)
+            {
+                Logger.LogWarning("Couldn't determinate if any migrations exist : " + e.Message);
+            }
+
             Logger.LogInformation("Started database migrations...");
 
             await MigrateDatabaseSchemaAsync();
@@ -69,7 +86,8 @@ namespace MyCompanyName.MyProjectName.Data
                 Logger.LogInformation($"Successfully completed {tenant.Name} tenant database migrations.");
             }
 
-            Logger.LogInformation("Successfully completed database migrations.");
+            Logger.LogInformation("Successfully completed all database migrations.");
+            Logger.LogInformation("You can stop this process safely, if it doesn't stop itself.");
         }
 
         private async Task MigrateDatabaseSchemaAsync(Tenant tenant = null)
@@ -89,5 +107,81 @@ namespace MyCompanyName.MyProjectName.Data
 
             await _dataSeeder.SeedAsync(tenant?.Id);
         }
+
+        private async Task<bool> CheckMigrationsAsync()
+        {
+            var dbMigrationsProjectFolder = GetDbMigrationsProjectFolderPath();
+
+            if (!Directory.Exists(Path.Combine(dbMigrationsProjectFolder, "migrations")))
+            {
+                return false;
+            }
+
+            return true;
+        }
+
+        private async Task AddInitialMigration()
+        {
+            Logger.LogInformation("Creating initial migration...");
+
+            string argumentPrefix;
+            string fileName;
+
+            if (RuntimeInformation.IsOSPlatform(OSPlatform.OSX) || RuntimeInformation.IsOSPlatform(OSPlatform.Linux))
+            {
+                argumentPrefix = "-c";
+                fileName = "/bin/bash";
+            }
+            else
+            {
+                argumentPrefix = "/C";
+                fileName = "cmd.exe";
+            }
+
+            var procStartInfo = new ProcessStartInfo( fileName,
+                $"{argumentPrefix} \"abp create-migration-and-run-migrator {GetDbMigrationsProjectFolderPath()}\""
+            );
+
+            try
+            {
+                Process.Start(procStartInfo);
+            }
+            catch (Exception)
+            {
+                throw new Exception("Couldn't run ABP CLI...");
+            }
+        }
+
+        private static string GetDbMigrationsProjectFolderPath()
+        {
+            var slnDirectoryPath = GetSolutionDirectoryPath();
+
+            if (slnDirectoryPath == null)
+            {
+                throw new Exception("Solution folder not found!");
+            }
+
+            var srcDirectoryPath = Path.Combine(slnDirectoryPath, "src");
+
+            return Directory.GetDirectories(srcDirectoryPath)
+                .FirstOrDefault(d => d.EndsWith(".DbMigrations"));
+        }
+
+        private static string GetSolutionDirectoryPath()
+        {
+            var currentDirectory = new DirectoryInfo(Directory.GetCurrentDirectory());
+
+            while (Directory.GetParent(currentDirectory.FullName) != null)
+            {
+                currentDirectory = Directory.GetParent(currentDirectory.FullName);
+
+                if (Directory.GetFiles(currentDirectory.FullName).FirstOrDefault(f => f.EndsWith(".sln")) != null)
+                {
+                    return currentDirectory.FullName;
+                }
+            }
+
+            return null;
+        }
     }
 }