refactor into an importable library and keep an example

examples/basic-usage/main.go

@@ -0,0 +1,35 @@
+package main
+
+import (
+	"embed"
+	"fmt"
+	"git.sa.vin/payne8/libsqldb"
+	"os"
+)
+
+//go:embed migrations/*.sql
+var migrationFiles embed.FS
+
+func main() {
+	primaryUrl := os.Getenv("LIBSQL_DATABASE_URL")
+	authToken := os.Getenv("LIBSQL_AUTH_TOKEN")
+
+	tdb, err := libsqldb.NewLibSqlDB(
+		primaryUrl,
+		migrationFiles,
+		libsqldb.WithAuthToken(authToken),
+		libsqldb.WithLocalDBName("local.db"),
+	)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "failed to open db %s: %s", primaryUrl, err)
+		os.Exit(1)
+	}
+
+	err = tdb.Migrate()
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "failed to migrate db %s: %s", primaryUrl, err)
+		os.Exit(1)
+	}
+
+	defer tdb.Close()
+}