Overhaul database package

datahopper/go/buildbot_migratedb/main.go

Index: datahopper/go/buildbot_migratedb/main.go
diff --git a/golden/go/correctness_migratedb/main.go b/datahopper/go/buildbot_migratedb/main.go
similarity index 90%
copy from golden/go/correctness_migratedb/main.go
copy to datahopper/go/buildbot_migratedb/main.go
index 45ab64e4d240b48028d27ecd67170e06625efa7d..18a6b79c75b2ce2033e3c2a57c37377b63dc7839 100644
--- a/golden/go/correctness_migratedb/main.go
+++ b/datahopper/go/buildbot_migratedb/main.go
@@ -12,13 +12,13 @@ import (
 	"strings"
 
 	"github.com/golang/glog"
+	"skia.googlesource.com/buildbot.git/go/buildbot"
 	"skia.googlesource.com/buildbot.git/go/common"
 	"skia.googlesource.com/buildbot.git/go/database"
-	"skia.googlesource.com/buildbot.git/golden/go/db"
 )
 
 func main() {
-	defaultConnStr := db.GetConnectionString("root", "", "", "")
+	defaultConnStr := fmt.Sprintf(database.DB_CONN_TMPL, buildbot.PROD_USER, "%s", buildbot.PROD_DB_HOST, buildbot.PROD_DATABASE)
 
 	// flags
 	dbConnString := flag.String("db_conn_string", defaultConnStr, "\n\tDatabase string to open connect to the MySQL database. "+
@@ -44,7 +44,7 @@ func main() {
 
 	conf := &database.DatabaseConfig{
 		MySQLString:    connectionStr,
-		MigrationSteps: db.MigrationSteps(),
+		MigrationSteps: buildbot.MigrationSteps(),
 	}
 	vdb := database.NewVersionedDB(conf)