get_version.m

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 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

% Read in the HEAD information, this will tell us the location of the file
% containing the SHA1
text=fileread('.git/HEAD');
parsed=textscan(text,'%s');

if ~strcmp(parsed{1}{1},'ref:') || ~length(parsed{1})>1
        %the HEAD is not in the expected format.
        %give up
        return
end

path=parsed{1}{2};
[pathstr, name, ext]=fileparts(path);
branchName=name;

%save branchname
gitInfo.branch=branchName;

%Read in SHA1
SHA1text=fileread(fullfile(['.git/' pathstr],[name ext]));
SHA1=textscan(SHA1text,'%s');
gitInfo.hash=SHA1{1}{1};

%Read in config file
config=fileread('.git/config');
%Find everything space delimited
temp=textscan(config,'%s','delimiter','\n');
lines=temp{1};

remote='';
%Lets find the name of the remote corresponding to our branchName
for k=1:length(lines)

    %Are we at the section describing our branch?
    if strcmp(lines{k},['[branch "' branchName '"]'])
        m=k+1;
        %While we haven't run out of lines
        %And while we haven't run into another section (which starts with
        % an open bracket)
        while (m<=length(lines) && ~strcmp(lines{m}(1),'[') )
            temp=textscan(lines{m},'%s');
            if length(temp{1})>=3
                if strcmp(temp{1}{1},'remote') && strcmp(temp{1}{2},'=')
                    %This is the line that tells us the name of the remote
                    remote=temp{1}{3};
                end
            end

            m=m+1;
        end
    end
end
gitInfo.remote=remote;

url='';
%Find the remote's url
for k=1:length(lines)

    %Are we at the section describing our branch?
    if strcmp(lines{k},['[remote "' remote '"]'])
        m=k+1;
        %While we haven't run out of lines
        %And while we haven't run into another section (which starts with
        % an open bracket)
        while (m<=length(lines) && ~strcmp(lines{m}(1),'[') )
            temp=textscan(lines{m},'%s');
            if length(temp{1})>=3
                if strcmp(temp{1}{1},'url') && strcmp(temp{1}{2},'=')
                    %This is the line that tells us the name of the remote
                    url=temp{1}{3};
                end
            end

            m=m+1;
        end
    end
end

gitInfo.url=url;