Source Code Repositories
Last Updated: 30 Apr 2012
Creating and Using Subversion Repositories
Subversion: Provides a version control system for managing source files, and documents. Both svn and svnadmin commands are included in the version control system.
Revision control is a key component for software development. Subversion is a well-known
centralized version control system installed on all participating HPCMP systems. Due to system
configuration differences, users running svn commands to remote systems from ARL DSRC systems
/usr/brl/bin to their
When using subversion to host repositories on HPCMP systems, the svn+ssh:// protocol method must be used. This will make changes over the HCPMP Kerberos ssh.
The following is a sample set of instructions for creating and using a subversion repository on HPCMP systems. The user guide for subversion can be found at the project website: http://subversion.apache.org/docs/.
Creating a New Repository:
Each system has the subversion commands installed in the default path after login. To create a new repository on an HPCMP system, first login to the system that will host the repository and execute the following command:
svnadmin create /path/to/root_location
svnadmin create $HOME/svn/bct
In the above example, the
$HOME/svn directory should already exist, but
$HOME/svn/bct should not.
If there is an existing directory structure that should be moved into the repository, use
svn import /path/to/import file:///path/to/root_location
Alternatively, if the files to be imported are on a different system then login to that system and execute the following command:
svn import /path/to/import \
In the above example we assume that the destination system is the AFRL Utility Server (us.afrl.hpc.mil) and the user is jdoe.
Checking out Files
The next step is to access the files and check out a version of the repository. On any system, execute the following command:
svn co svn+ssh://us.afrl.hpc.mil/u/home/jdoe/svn/bct
This will check out a copy of the current version of the repository into the current directory that has the same name 'bct', as the repository.
Before making any changes, make sure the working copy is the latest available. The
svn update command updates the working copy to the latest.
Making revisions to files, adding new files, deleting files, and checking in changes are done
commands respectively. Other options such as
svn revert are other commands that are key to using subversion and are explained
in greater detail in the subversion user guide.
Last Updated: 04.30.2012