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package info
import (
"context"
"errors"
"fmt"
"gitlab.com/gitlab-org/gitaly/internal/helper"
"gitlab.com/gitlab-org/gitaly/internal/praefect/datastore"
"gitlab.com/gitlab-org/gitaly/proto/go/gitalypb"
)
// ReplicationFactorSetter sets a repository's replication factor
type ReplicationFactorSetter interface {
// SetReplicationFactor assigns or unassigns a repository's host nodes until the desired replication factor is met.
// Please see the protobuf documentation of the method for details.
SetReplicationFactor(ctx context.Context, virtualStorage, relativePath string, replicationFactor int) ([]string, error)
}
func (s *Server) SetReplicationFactor(ctx context.Context, req *gitalypb.SetReplicationFactorRequest) (*gitalypb.SetReplicationFactorResponse, error) {
resp, err := s.setReplicationFactor(ctx, req)
if err != nil {
var invalidArg datastore.InvalidArgumentError
if errors.As(err, &invalidArg) {
return nil, helper.ErrInvalidArgument(err)
}
return nil, helper.ErrInternal(err)
}
return resp, nil
}
func (s *Server) setReplicationFactor(ctx context.Context, req *gitalypb.SetReplicationFactorRequest) (*gitalypb.SetReplicationFactorResponse, error) {
if s.rfs == nil {
return nil, fmt.Errorf("setting replication factor is only possible when Praefect is ran with 'per_repository' elector")
}
storages, err := s.rfs.SetReplicationFactor(ctx, req.VirtualStorage, req.RelativePath, int(req.ReplicationFactor))
if err != nil {
return nil, fmt.Errorf("set replication factor: %w", err)
}
return &gitalypb.SetReplicationFactorResponse{Storages: storages}, nil
}
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