GIT and CVS access to the SWI-Prolog development tree

GIT is a Fast Version Control System developed by Linus Torvalds and currently maintained by Junio C Hamano. The SWI-Prolog project moved from CVS to GIT because

CVS started to become too slow
CVS doesn't support staging very well. I like frequent commits to synchronise between machines, commit work that is known to be incomplete, etc. For GIT this is the natural model, for CVS it is just too cumbersome.
GIT allows for offline working.
GIT checkouts are totally stand alone, making local branches much easier as well as providing security against system failure, etc.
GIT provides a fairly complete CVS server.

The complete CVS history since 1993 has been included in the GIT repository.

Public access to the SWI-Prolog GIT/CVS repository

If you want to keep in touch with the most recent version, or you want to maintain a modified version, access to the SWI-Prolog GIT/CVS repository can make your life a lot easier.

Access through your WWW browser

We provide browsing access through the web using GITweb. With any browser you can examine the version history of files, retrieve any version of a file and produce difference listings between arbitrary versions.

Access using GIT

Using GIT, you can clone the repository from one of these addresses. Please use the git:// access if you can as it is much faster. The HTTP gateway provides you with access if proxies or firewalls deny direct internet access to the git port.

http://gollem.science.uva.nl/home/git/pl.git
git://gollem.science.uva.nl/home/git/pl.git

Initial checkout is achieved using this command, which creates a directory pl below the current directory.

% git clone git://gollem.science.uva.nl/home/git/pl.git

You can update to the latest version using

% git pull

Access using a CVS client

If you have a CVS client, which is available for many platforms, you can access the repository with read-only access. To check out the most recent version, please give the following command (% is the prompt):

% cvs -d :pserver:anonymous@gollem.science.uva.nl:2402/pl.git co master

Note that the CVS server is a GIT clone of a real CVS server. It has only one module and the argument for checkout is not a module but a branch. The main branch is called master. As long as we are running a real CVS server, the GIT emulation is based on port 2402 rather than the CVS default port 2401.

The above commands create a directory master in the current working directory. After this you can give any of the CVS commands to manage your version, except for commands that modify the repository. For example, the following command synchronises your version with ours, merging and/or complaining about changes you made. Issue from the top-directory or any subdirectory thereof to update only that subdirectory.

% cvs update

A Windows version of the CVS client is available from http://www.cyclic.com/pub/cvs-1.10/windows/cvs-1.10-win.zip. Installation instructions for Windows are here. Note that GIT currently does not distinguish between text and binary files at the file level. As the repository contains binary objects (images and XPCE saved objects), the repository is set to binary and text files you checkout use the POSIX single \n newline convention. Recent versions of PceEmacs detect and preserve DOS/POSIX newline representations automatically. May 13, 2008 We now use msysGit for development on Windows XP/XP64 using default (auto) cr/lf translation. Where GIT on Windows was mostly unusable in October 2007, it now (May 2008) appears sufficienly stable.

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