/usr/share/psychtoolbox-3/PsychOneliners/GetGitPath.m is in psychtoolbox-3-common 3.0.11.20131230.dfsg1-1build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 | function gitpath = GetGitPath
% gitpath = GetGitPath -- Return auto-detected installation path
% for git client, if any. Return empty string if auto-detection not
% possible. Typical usage is like this:
%
% mygitcommand = [GetGitPath 'git describe']; system(mygitcommand);
%
% GetGitPath will return the path to be prefixed in front of the git
% executable. If none can be found, the git executable will be executed
% without path spec. If it is installed in the system executable search
% path, it will then still work.
%
% The function simply checks if the git executable is in the Matlab path
% and returns a proper path-spec. If it isn't found in the Matlab path, it
% tries default path locations for OS-X and Windows. If that doesn't work,
% it returns an empty string.
% History:
% 07/11/13 Written, based on GetSubversionPath (DHB).
% 10/28/13 Add IsLinux where we try out various possible UNIX paths.
% Maria Olkkonen reports that doing so makes this work properly
% on her linux system. (DHB)
% Check for alternative install location of Git:
if IsWin
% Search for Windows executable in Matlab's path:
gitpath = which('git.exe');
else
% Search for Unix executable in Matlab's path:
gitpath = which('git.');
end
% Found one?
if ~isempty(gitpath)
% Extract basepath and use it:
gitpath=[fileparts(gitpath) filesep];
else
% Could not find git executable in Matlabs path. Check the default
% install location on OS-X and abort if it isn't there. On M$-Win we
% simply have to hope that it is in some system dependent search path.
% Currently, we only know how to check this for Mac OSX and Linux.
if (IsOSX || IsLinux)
gitpath = '';
if isempty(gitpath) && exist('/usr/bin/git','file')
gitpath='/usr/bin/';
end
if isempty(gitpath) && exist('/usr/local/git/bin/git','file')
gitpath='/usr/local/git/bin/';
end
if isempty(gitpath) && exist('/usr/local/bin/git','file')
gitpath='/usr/local/bin/';
end
if isempty(gitpath) && exist('/bin/git','file')
gitpath='/bin/';
end
if isempty(gitpath) && exist('/opt/local/bin/git', 'file')
gitpath = '/opt/local/bin/';
end
end
end
return;
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