Initial commit: Add project files

src/KArtSell.DbMigrator/Program.cs

@@ -0,0 +1,29 @@
+using DbUp;
+
+var connectionString = Environment.GetEnvironmentVariable("KARTSELL_POSTGRES")
+    ?? "Host=localhost;Port=5432;Database=kartsell;Username=kartsell;Password=kartsell";
+
+var scriptsPath = Path.Combine(AppContext.BaseDirectory, "db", "migrations");
+if (!Directory.Exists(scriptsPath))
+{
+    scriptsPath = Path.Combine(AppContext.BaseDirectory, "migrations");
+}
+
+EnsureDatabase.For.PostgresqlDatabase(connectionString);
+
+var result = DeployChanges.To
+    .PostgresqlDatabase(connectionString)
+    .WithScriptsFromFileSystem(scriptsPath)
+    .JournalToPostgresqlTable("public", "kartsell_schema_versions")
+    .LogToConsole()
+    .Build()
+    .PerformUpgrade();
+
+if (!result.Successful)
+{
+    Console.Error.WriteLine(result.Error);
+    return 1;
+}
+
+Console.WriteLine("Database migration completed.");
+return 0;