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package ingest
import (
"fmt"
objectheader "codeberg.org/lindenii/furgit/object/header"
objectid "codeberg.org/lindenii/furgit/object/id"
objecttype "codeberg.org/lindenii/furgit/object/type"
)
// hashCanonicalObject hashes canonical object bytes (header+content).
func hashCanonicalObject(algo objectid.Algorithm, ty objecttype.Type, content []byte) (objectid.ObjectID, error) {
header, ok := objectheader.Encode(ty, int64(len(content)))
if !ok {
return objectid.ObjectID{}, fmt.Errorf("packfile/ingest: encode object header for type %d", ty)
}
hashImpl, err := algo.New()
if err != nil {
return objectid.ObjectID{}, err
}
_, _ = hashImpl.Write(header)
_, _ = hashImpl.Write(content)
return objectid.FromBytes(algo, hashImpl.Sum(nil))
}
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