Go migrations

A very simple migration library for your Go projects.

Features

Any database/sql compatible drivers should work. See https://github.com/golang/go/wiki/SQLDrivers
Each migration is run in a transaction so there should be no 'dirty' state.
Only migrates up. Yes, just "roll forward".
Enables a callback function to suit whatever logging implementation you choose.
Supports Go1.16's io/fs interface for embedded migrations.

Example usage

import "src.userspace.com.au/migrate"
// or import "github.com/felix/migrate"

db, err := sql.Open("pgx", uri)
//db, err := sql.Open("sqlite3", uri)
if err != nil {
    return err
}
defer db.Close()

// Relative path to migration files
migrator, err := migrate.NewFileMigrator(db, "file://migrations/")
if err != nil {
    return fmt.Errorf("failed to create migrator: %s", err)
}

// Migrate all the way
err = migrator.Migrate()
if err != nil {
    return fmt.Errorf("failed to migrate: %s", err)
}

v, err := migrator.Version()
fmt.Printf("database at version %d\n", v)