[Question] How to check if migration shoule be applied?

[kkocel]

I want to use migrate in my tests setup.

I have following code:

	driver, err := postgres.WithInstance(db, &postgres.Config{})
	if err != nil {
		return err
	}
	sqltest.WaitForDB(db)
	m, err := migrate.NewWithDatabaseInstance(
		"file://"+path,
		dbName,
		driver)
	if err != nil  {
		return errors.Wrap(err, "cannot do migration")
	}

	err = m.Up()
	return err

The problem is when I apply m.Up() I get error -no change. How I can check if migration is feasible and then not apply migration?

[dhui]

You can check if the returned error is ErrNoChange.
For more info, see: #100 (comment)

It's hard to find the duplicate issue for this, but updating this PR should help prevent duplicates from being filed in the future.

[kkocel]

Ok, thanks for info, I'll handle it in the same way.