refer http://wiki.ubuntu.org.cn/SubVersion
1) install the svn software:
$ sudo apt-get install subversion
$ sudo apt-get install libapache2-svn
2) add the group and user:
$sudo addgroup subversion
$sudo usermod -G subversion -a www-data
3) create the svn dir
$ sudo mkdir /home/svn
$ cd /home/svn
$ sudo mkdir myproject
$ sudo chown -R root:subversion myproject
$ sudo chmod -R g+rws myproject
4) create the respository
$ sudo svnadmin create /home/svn/myproject
5) config the WebDAV protocals for web access the svn server:
a)edit the file of "/etc/apache2/mods-available/dav_svn.conf", and add the following code:
<Location /svn/myproject>DAV svn
SVNPath /home/svn/myproject
AuthType Basic
AuthName "myproject subversion repository"
AuthUserFile /etc/subversion/passwd
<LimitExcept GET PROPFIND OPTIONS REPORT>
Require valid-user
</LimitExcept>
</Location>
b)restart apache : sudo /etc/init.d/apache2 restart
c)create the pass file, and add the user:
sudo touch /etc/subversion/passwd
sudo htpasswd -c /etc/subversion/passwd user_name
6) now you can use your client browser/tool to access your svn server.