Projeto bot pontos

backend/internal/adapters/postgres/migrate.go

@@ -0,0 +1,50 @@
+package postgres
+
+import (
+	"context"
+	"database/sql"
+	"fmt"
+	"log/slog"
+
+	_ "github.com/jackc/pgx/v5/stdlib" // registra o driver "pgx" no database/sql
+	"github.com/pressly/goose/v3"
+
+	"botpontos/db/migrations"
+	"botpontos/internal/config"
+)
+
+// Migrate executa o goose com as migrations embutidas no binário.
+// Deve rodar com o usuário dono do banco, não com o usuário da aplicação.
+func Migrate(ctx context.Context, cfg config.DB, command string, logger *slog.Logger) error {
+	db, err := sql.Open("pgx", cfg.DSN())
+	if err != nil {
+		return fmt.Errorf("abrir conexão para migrations: %w", err)
+	}
+	defer db.Close()
+
+	if err := waitFor(ctx, logger, db.PingContext); err != nil {
+		return err
+	}
+
+	goose.SetBaseFS(migrations.FS)
+	if err := goose.SetDialect("postgres"); err != nil {
+		return err
+	}
+
+	switch command {
+	case "up":
+		err = goose.UpContext(ctx, db, ".")
+	case "status":
+		err = goose.StatusContext(ctx, db, ".")
+	case "down":
+		err = goose.DownContext(ctx, db, ".")
+	default:
+		return fmt.Errorf("subcomando de migrate desconhecido: %s (use up, status ou down)", command)
+	}
+	if err != nil {
+		return fmt.Errorf("migrate %s: %w", command, err)
+	}
+
+	logger.Info("migrations concluídas", "command", command)
+	return nil
+}