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33 lines
1.2 KiB
Go
33 lines
1.2 KiB
Go
package resource
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import (
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"fmt"
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"github.com/grafana/grafana-app-sdk/logging"
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"github.com/grafana/grafana/pkg/storage/unified/resourcepb"
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)
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// MigrateVersionMatch handles backwards compatibility for ResourceVersionMatch
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// by migrating from the deprecated version_match to version_match_v2.
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// It returns an error if the version match is unknown.
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func MigrateListRequestVersionMatch(req *resourcepb.ListRequest, logger logging.Logger) error {
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if req.VersionMatch != nil && req.GetVersionMatchV2() == resourcepb.ResourceVersionMatchV2_UNKNOWN {
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switch req.GetVersionMatch() {
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case resourcepb.ResourceVersionMatch_DEPRECATED_NotOlderThan:
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// This is not a typo. The old implementation actually did behave like Unset.
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req.VersionMatchV2 = resourcepb.ResourceVersionMatchV2_Unset
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case resourcepb.ResourceVersionMatch_DEPRECATED_Exact:
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req.VersionMatchV2 = resourcepb.ResourceVersionMatchV2_Exact
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default:
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return fmt.Errorf("unknown version match: %v", req.GetVersionMatch())
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}
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// Log the migration to measure whether we have successfully migrated all clients
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logger.Info("Old client request received, migrating from version_match to version_match_v2",
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"oldValue", req.GetVersionMatch(),
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"newValue", req.GetVersionMatchV2())
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}
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return nil
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}
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