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package notifier
import (
"context"
"gitlab.com/gitlab-org/gitaly/internal/git"
"gitlab.com/gitlab-org/gitaly/internal/git/catfile"
"gitlab.com/gitlab-org/gitaly/internal/helper/chunk"
"gitlab.com/gitlab-org/gitaly/proto/go/gitalypb"
)
// Notifier sends messages stating that an OID has been rewritten, looking
// up the type of the OID if necessary. It is not safe for concurrent use
type Notifier struct {
catfile catfile.Batch
chunker *chunk.Chunker
}
// New instantiates a new Notifier
func New(ctx context.Context, gitCmdFactory git.CommandFactory, repo *gitalypb.Repository, chunker *chunk.Chunker) (*Notifier, error) {
catfile, err := catfile.New(ctx, gitCmdFactory, repo)
if err != nil {
return nil, err
}
return &Notifier{catfile: catfile, chunker: chunker}, nil
}
// Notify builds a new message and sends it to the chunker
func (n *Notifier) Notify(ctx context.Context, oldOid, newOid string, isInternalRef bool) error {
objectType := n.lookupType(ctx, newOid, isInternalRef)
entry := &gitalypb.ApplyBfgObjectMapStreamResponse_Entry{
Type: objectType,
OldOid: oldOid,
NewOid: newOid,
}
return n.chunker.Send(entry)
}
func (n *Notifier) lookupType(ctx context.Context, oid string, isInternalRef bool) gitalypb.ObjectType {
if isInternalRef {
return gitalypb.ObjectType_COMMIT
}
info, err := n.catfile.Info(ctx, git.Revision(oid))
if err != nil {
return gitalypb.ObjectType_UNKNOWN
}
switch info.Type {
case "commit":
return gitalypb.ObjectType_COMMIT
case "blob":
return gitalypb.ObjectType_BLOB
case "tree":
return gitalypb.ObjectType_TREE
case "tag":
return gitalypb.ObjectType_TAG
default:
return gitalypb.ObjectType_UNKNOWN
}
}
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