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package fetch
import (
"fmt"
"io"
objectid "codeberg.org/lindenii/furgit/object/id"
objecttype "codeberg.org/lindenii/furgit/object/type"
)
// exactReader reads one object's content stream and verifies that its header
// type matches wantType.
func (r *Fetcher) exactReader(id objectid.ObjectID, wantType objecttype.Type, wantName string) (io.ReadCloser, int64, error) {
gotType, size, rc, err := r.store.ReadReaderContent(id)
if err != nil {
return nil, 0, err
}
if gotType != wantType {
_ = rc.Close()
return nil, 0, fmt.Errorf("object/fetch: expected %s object %s, got %v", wantName, id, gotType)
}
return rc, size, nil
}
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