add drivers

.gitignore

@@ -8,3 +8,7 @@ custom-goose
 go.db
 goose
 sql.db
+
+
+# don't ignore goose dir
+!goose/

cmd/goose/driver_mysql.go

@@ -0,0 +1,8 @@
+// +build !not_mysql
+
+package main
+
+import (
+	_ "github.com/go-sql-driver/mysql"
+	_ "github.com/ziutek/mymysql/godrv"
+)

cmd/goose/driver_psql.go

@@ -0,0 +1,7 @@
+// +build !not_pq
+
+package main
+
+import (
+	_ "github.com/lib/pq"
+)

cmd/goose/driver_sqlite.go

@@ -0,0 +1,7 @@
+// +build !not_sqlite
+
+package main
+
+import (
+	_ "github.com/mattn/go-sqlite3"
+)