plugeth-statediff/indexer/shared/db_kind.go

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2023-06-14 12:43:34 +00:00
// VulcanizeDB
// Copyright © 2021 Vulcanize
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package shared
import (
"fmt"
"strings"
)
// DBType to explicitly type the kind of DB
type DBType string
const (
POSTGRES DBType = "Postgres"
DUMP DBType = "Dump"
FILE DBType = "File"
INVALID DBType = "Invalid"
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)
// ResolveDBType resolves a DBType from a provided string
func ResolveDBType(str string) (DBType, error) {
switch strings.ToLower(str) {
case "postgres", "pg":
return POSTGRES, nil
case "dump", "d":
return DUMP, nil
case "file", "f", "fs":
return FILE, nil
default:
return INVALID, fmt.Errorf("unrecognized db type string: %s", str)
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}
}
// Set satisfies flag.Value
func (dbt *DBType) Set(v string) (err error) {
*dbt, err = ResolveDBType(v)
return
}
// String satisfies flag.Value
func (dbt *DBType) String() string {
return strings.ToLower(string(*dbt))
}