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// Copyright (C) MongoDB, Inc. 2017-present.
//
// Licensed under the Apache License, Version 2.0 (the "License"); you may
// not use this file except in compliance with the License. You may obtain
// a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
package unified
import (
"fmt"
"strconv"
"strings"
"go.mongodb.org/mongo-driver/mongo/integration/mtest"
)
var (
supportedSchemaVersions = map[int]string{
1: "1.6",
}
)
// checkSchemaVersion determines if the provided schema version is supported and returns an error if it is not.
func checkSchemaVersion(version string) error {
// First get the major version number from the schema. The schema version string should be in the format
// "major.minor.patch", "major.minor", or "major".
parts := strings.Split(version, ".")
if len(parts) == 0 {
return fmt.Errorf("error splitting schema version %q into parts", version)
}
majorVersion, err := strconv.Atoi(parts[0])
if err != nil {
return fmt.Errorf("error converting major version component %q to an integer: %v", parts[0], err)
}
// Find the latest supported version for the major version and use that to determine if the provided version is
// supported.
supportedVersion, ok := supportedSchemaVersions[majorVersion]
if !ok {
return fmt.Errorf("major version %d not supported", majorVersion)
}
if mtest.CompareServerVersions(supportedVersion, version) < 0 {
return fmt.Errorf(
"latest version supported for major version %d is %q, which is incompatible with specified version %q",
majorVersion, supportedVersion, version,
)
}
return nil
}
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