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package loose
import (
"bufio"
"compress/zlib"
"codeberg.org/lindenii/furgit/objectid"
"codeberg.org/lindenii/furgit/objecttype"
)
// ReadHeader reads an object's type and declared content length.
func (store *Store) ReadHeader(id objectid.ObjectID) (objecttype.Type, int64, error) {
file, err := store.openObject(id)
if err != nil {
return objecttype.TypeInvalid, 0, err
}
defer func() { _ = file.Close() }()
zr, err := zlib.NewReader(file)
if err != nil {
return objecttype.TypeInvalid, 0, err
}
defer func() { _ = zr.Close() }()
ty, size, err := readHeader(bufio.NewReader(zr))
if err != nil {
return objecttype.TypeInvalid, 0, err
}
return ty, size, nil
}
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