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## Copyright (C) 2006-2021 The Octave Project Developers
##
## See the file COPYRIGHT.md in the top-level directory of this
## distribution or <https://octave.org/copyright/>.
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## This file is part of Octave.
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## -*- texinfo -*-
## @deftypefn  {} {} gunzip (@var{gzfile})
## @deftypefnx {} {} gunzip (@var{gzfile}, @var{dir})
## @deftypefnx {} {@var{filelist} =} gunzip (@dots{})
## Unpack the gzip archive @var{gzfile}.
##
## If @var{gzfile} is a directory, all gzfiles in the directory will be
## recursively unpacked.
##
## If @var{dir} is specified the files are unpacked in this directory rather
## than the one where @var{gzfile} is located.
##
## The optional output @var{filelist} is a list of the uncompressed files.
## @seealso{gzip, unpack, bunzip2, unzip, untar}
## @end deftypefn

function filelist = gunzip (gzfile, dir = [])

  if (nargin < 1)
    print_usage ();
  endif

  if (isempty (dir) && ischar (gzfile))
    dir = fileparts (gzfile);
  endif

  if (nargout > 0)
    filelist = unpack (gzfile, dir, "gz");
  else
    unpack (gzfile, dir, "gz");
  endif

endfunction


## Tests for this m-file are located in gzip.m
## Remove from test statistics
%!assert (1)