You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: get_version.m
    path of file: ./repos/ad936x-filter-wizard
    
    the code of the file until where you have to start completion: function version = get_version()
% source version info file
version = '';
adi_release_version;

version_regex = '^\d+\.\d+\.\d+$';
[tokens, match] = regexpi(version, version_regex, 'tokens', 'match');

if strcmp(version, '')
    error('version missing from VERSION file!');
elseif isempty(match)
    error('wrong version format in VERSION file (should be x.x.x)');
end

% add git hash info if inside a git repo
git = getGitInfo();
if ~isempty(git) && isfield(git, 'hash')
    version = strcat(version, '-g', git.hash(1:7));
end


function gitInfo = getGitInfo()
% Get information about the Git repository in the current directory, including:
%          - branch name of the current Git Repo
%          -Git SHA1 HASH of the most recent commit
%          -url of corresponding remote repository, if one exists
%
% The function first checks to see if a .git/ directory is present. If so it
% reads the .git/HEAD file to identify the branch name and then it looks up
% the corresponding commit.
%
% It then reads the .git/config file to find out the url of the
% corresponding remote repository. This is all stored in a gitInfo struct.
%
% Note this uses only file information, it makes no external program
% calls at all.
%
% This function must be in the base directory of the git repository
%
% Released under a BSD open source license. Based on a concept by Marc
% Gershow.
%
% Andrew Leifer
% Harvard University
% Program in Biophysics, Center for Brain Science,
% and Department of Physics
% leifer@fas.harvard.edu
% http://www.andrewleifer.com
% 12 September 2011

% Copyright 2011 Andrew Leifer. All rights res
    
function gitInfo = getGitInfo()
% Get information about the Git repository in the current directory, including:
%          - branch name of the current Git Repo
%          -Git SHA1 HASH of the most recent commit
%          -url of corresponding remote repository, if one exists
%
% The function first checks to see if a .git/ directory is present. If so it
% reads the .git/HEAD file to identify the branch name and then it looks up
% the corresponding commit.
%
% It then reads the .git/config file to find out the url of the
% corresponding remote repository. This is all stored in a gitInfo struct.
%
% Note this uses only file information, it makes no external program
% calls at all.
%
% This function must be in the base directory of the git repository
%
% Released under a BSD open source license. Based on a concept by Marc
% Gershow.
%
% Andrew Leifer
% Harvard University
% Program in Biophysics, Center for Brain Science,
% and Department of Physics
% leifer@fas.harvard.edu
% http://www.andrewleifer.com
% 12 September 2011

% Copyright 2011 Andrew Leifer. All rights reserved.
%
% Redistribution and use in source and binary forms, with or without modification, are
% permitted provided that the following conditions are met:
%
%    1. Redistributions of source code must retain the above copyright notice, this list of
%       conditions and the following disclaimer.
%
%    2. Redistributions in binary form must reproduce the above copyright notice, this list
%       of conditions and the following disclaimer in the documentation and/or other materials
%       provided with the distribution.
%
% THIS SOFTWARE IS PROVIDED BY <COPYRIGHT HOLDER> ''AS IS'' AND ANY EXPRESS OR IMPLIED
% WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
% FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> OR
% CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
% CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
% SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
% ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
% NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
% ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
%
% The views and conclusions contained in the software and documentation are those of the
% authors and should not be interpreted as representing official policies, either expressed
% or implied, of <copyright holder>.

 gitInfo=[];
if ~exist('.git','file') || ~exist('.git/HEAD','file')
    %Git is not present
    return
end