== Subversion Source Control System ==

MacPorts uses [http://subversion.tigris.org Subversion] as its version control system. Subversion documentation is available through the [http://svnbook.red-bean.com/ online Subversion Book]. The Subversion command line client svn is shipped with Apple's Mac OS X Leopard, and available through MacPorts on earlier Mac OS X versions. There is also a Subversion installation available in binary form from [http://www.macosforge.org/subversion.html MacOSForge]. Subversion GUI clients are built in to [http://www.apple.com/xcode XCode] and [http://www.bbedit.com BBEdit].

== Browsing the MacPorts Sources Online ==

You may browse the MacPorts Subversion sources online in one of three ways:

 1. Via the [http://trac.macosforge.org/projects/macports/browser Trac source code browser]
 1. Directly through Subversion via its underlying [http://svn.macosforge.org/repository/macports/ http support].
 1. You may also directly access the Subversion respository through a WebDav client such as the Mac OS X Finder. (Select Connect to Server… and paste in the URL http://svn.macosforge.org/repository/macports/).


== Checking out MacPorts sources using Subversion ==

To checkout the sources with Subversion, for read-only access, use commands such as the following:

{{{
# Checkout the macports trunk
svn checkout http://svn.macosforge.org/repository/macports/trunk macports-trunk
}}}

To gain commit access to the repository, you must be granted an account, and be given appropriate privileges. Once that is done, you may checkout the source tree using https:

{{{
# Checkout the macports trunk
svn checkout https://svn.macosforge.org/repository/macports/trunk macports-trunk --username your_handle@macports.org
}}}