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function SwitchToNewPsychtoolboxHoster
% Switch a installed Psychtoolbox working copy to our new host GoogleCode.
%
% This function checks if the currently installed Psychtoolbox working copy
% is still attached to Berlios code hosting. If so, it tries to switch it
% over to our new code hosting provider GoogleCode. Otherwise it does
% nothing.
%
% This function is called by the PsychtoolboxPostInstallRoutine after each
% invocation of DownloadPsychtoolbox, UpdatePsychtoolbox or SetupPsychtoolbox.
% It takes care of the transition.
%
% The function can also be called manually by users in the year 2012 and
% later, when the standard installation and update routines do no longer
% work due to Berlios servers being offline.
%
% History:
% 31.10.2011 mk Written.
% 08.01.2012 mk Disable the copy of the routine hosted at GoogleCode,
% as its execution would be entirely redundant by definition.
% We can skip this routine. Why? Because all current copies of the routine
% are hosted on GoogleCode since 2012, so the pure fact that this version
% of the file is executed means that we *are* in fact hosted on GoogleCode.
% Therefore no need for a redundant check :)
% The write-locked copy of this routine on Berlios is still active and
% important for switchovers.
% We do leave this routine in place, in its disabled state, in case we
% would need to do a move of ptb's hosting again in the future, so we
% would only need to change the old and new hosting URL's and reenable the
% routine.
return;
fprintf('Are we hosted on Google''s GoogleCode service, as we should be? Checking... ');
% Check if this Psychtoolbox is still sourced from our old and (soon to be
% dead) hoster Berlios. Switch the working copy to source from Google-Code
% instead, if so:
checksvncommand = [GetSubversionPath 'svn info ' PsychtoolboxRoot];
if exist('system') %#ok<EXIST>
[a,b] = system(checksvncommand);
else
[a,b] = dos(checksvncommand);
end
% Assume no switch needed:
doSwitch = 0;
if (a ~= 0) || isempty(b)
% On failure to detect source URL, assume switch is not needed. This is
% a tradeoff. Without it, we could fail miserably when called from
% SetupPsychtoolbox on a system where the working copy is stripped of
% .svn meta-info or the svn client is not installed:
fprintf('Don''t know, don''t care.\n');
return;
else
if ~isempty(findstr(b, 'berlios'))
% Still sourced from Berlios -> Switch needed.
doSwitch = 1;
end
end
% Switch needed?
if doSwitch
% Yes: Rewrite SVN repository root URL to use GoogleCode from now on:
% Tell user:
fprintf('No :-( \n\n\n\n\n\n');
fprintf('========================================================================\n');
fprintf('Your current working copy of the Psychtoolbox is connected to our\n');
fprintf('old Subversion repository at "https://svn.berlios.de". Berlios will\n');
fprintf('shut down its services at the end of the year 2011. For this reason\n');
fprintf('Psychtoolbox has moved to Google''s GoogleCode code hosting service.\n');
fprintf('\n');
fprintf('I will now switch from the old Subversion repository at Berlios to\n');
fprintf('the new repository at GoogleCode: "http://code.google.com/p/psychtoolbox-3"\n');
fprintf('\n');
% Yes: Execute svn switch command:
if ~isempty(findstr(b, 'svn://'))
switchsvncommand = [GetSubversionPath 'svn switch --relocate svn://svn.berlios.de/osxptb http://psychtoolbox-3.googlecode.com/svn ' PsychtoolboxRoot];
else
if ~isempty(findstr(b, 'https://'))
switchsvncommand = [GetSubversionPath 'svn switch --relocate https://svn.berlios.de/svnroot/repos/osxptb http://psychtoolbox-3.googlecode.com/svn ' PsychtoolboxRoot];
else
switchsvncommand = [GetSubversionPath 'svn switch --relocate http://svn.berlios.de/svnroot/repos/osxptb http://psychtoolbox-3.googlecode.com/svn ' PsychtoolboxRoot];
end
end
fprintf('Executing: %s\n\n', switchsvncommand);
fprintf('This may take a moment, please standby...\n\n');
drawnow;
if exist('system') %#ok<EXIST>
[rc, msg] = system(switchsvncommand);
else
[rc, msg] = dos(switchsvncommand);
end
if rc ~= 0
% Ohoh!
fprintf('FAILED! Sorry, could not switch your working copy to new home for some reason.\n');
fprintf('The Subversion error message was: "%s".\n', msg);
fprintf('\n');
fprintf('If the error message makes sense to you, you can try to fix\n');
fprintf('the problem and then retry the Psychtoolbox update.\n');
fprintf('\n');
fprintf('You could also search the Psychtoolbox Wiki or forum if any\n');
fprintf('troubleshooting tips for this problem are available. This Wiki\n');
fprintf('page "http://psychtoolbox.org/MigrationToGoogleCode" is a good starting point.\n');
fprintf('\n');
fprintf('A reliable way to solve the problem is to start over from scratch:\n\n');
fprintf('1. Manually delete the folder with your current copy of Psychtoolbox from\n');
fprintf(' your computer. Also remove all entries of Psychtoolbox from your Matlab\n');
fprintf(' or Octave path manually. Make sure to backup any files you may have modified\n');
fprintf(' in your old copy of Psychtoolbox before you delete the folder!\n');
fprintf('\n');
fprintf('2. Get a *new* copy of the DownloadPsychtoolbox.m downloader script from the\n');
fprintf(' Download-Section of our Wiki at http://psychtoolbox.org/PsychtoolboxDownload\n');
fprintf('\n');
fprintf('3. Use that new DownloadPsychtoolbox script to download a fresh copy of Psychtoolbox\n');
fprintf(' from Google.\n');
fprintf('\n');
fprintf('Good luck.\n\n');
error('Switch of repository failed. Please follow the troubleshooting instructions above.');
end
% Success: Tell user what needs to be done now:
fprintf('Success! Psychtoolbox has been switched to use its new home at Google.\n');
fprintf('\n');
fprintf('To complete the transition and to make sure you really have the latest\n');
fprintf('version of Psychtoolbox installed, please do the following:\n');
fprintf('\n');
fprintf('1. Restart Octave or Matlab as you wish. I will exit it for you in a moment.\n');
fprintf('2. Run the download or install command you used (DownloadPsychtoolbox, or UpdatePsychtoolbox) again,\n');
fprintf(' so i can complete the transition.\n\n');
fprintf('\n');
fprintf('Press any key on the keyboard once you read these instructions carefully. I will quit Matlab or Octave then.\n');
pause;
fprintf('Ok, please follow those two steps now. Thanks!\n\n');
pause(4);
% And... ...we're gone:
quit;
end
fprintf('Yes :-)\n');
return;
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