This article was originally posted at:
http://labs.redbd.net/blog/index.cfm/2006/7/5/Website-Releases-via-Subversion-SVN
but this site now seems to be dead, so I have recovered it from archive.org and re-posted it.

If I am breaking any copyrights here, please let me know and I will remove it.

Note that Drupal now blocks any path containing "svn-base". See: http://drupal.org/node/28776

Posted At : July 5, 2006 9:54 PM By : Mark

#Create a paths file:
mkdir -p /etc/opt/drupal; vi /etc/opt/drupal/a6paths
drupaldir=/opt/drupal/acquia6
moduledir=/opt/drupal/modules6aq
themedir=/opt/drupal/themes6
scriptdir=/opt/drupal/scripts6
archivedir=/opt/drupal/archive6


#first install of Acquia Drupal as: http://acquia.com/documentation/getting-started/fresh-install/svn
source /etc/opt/drupal/a6paths
mkdir -p $drupaldir
svn checkout https://svn.acquia.com/drupal/branches/1.x-6.x $drupaldir


#create website:
dget create /home/user/webbase dbasename a6paths

Putting this code into a page will let it update the site from a repository:

<pre>
<?php system( 'svn up sites/default/...'); ?>
</pre><h1>Done!</h1>

Note that apache must have write permission for the whole directory tree.
I tried the following but couldn't get it to work (probably not in my version of PHP):
svn_checkout('http://myserver.com/svn/demo', '/var/www/html/demo/temp');

If the repository requires a password for update, the following can be done:


yum install subversion mod_dav_svn
mkdir -p /var/www/svn/test #place to keep repository
svnadmin create --fs-type fsfs /var/www/svn/test #make a test one
chown -R apache.apache /var/www/svn
vim /etc/httpd/conf/httpd.conf #make sure the following two lines are there
LoadModule dav_svn_module modules/mod_dav_svn.so
LoadModule authz_svn_module modules/mod_authz_svn.so
#
vim /etc/httpd/conf.d/subversion.conf #and add the following

<Location /svn>
   DAV svn
   SVNParentPath /var/www/svn
   # Limit write permission to list of valid users.

Installation:

Quick intro (but use htpasswd not htpasswd2) http://www.howtogeek.com/howto/ubuntu/install-subversion-with-web-access...
Better guide: https://help.ubuntu.com/8.04/serverguide/C/subversion.html
Excellent guide: http://queens.db.toronto.edu/~nilesh/linux/subversion-howto/
4 minutes: http://www.tonyspencer.com/2007/03/02/setup-a-subversion-server-in-4-min...
CentOS 5: http://www.daniel-skinner.co.uk/setup-subversion-and-trac-on-centos-5/06...
and: http://svnbook.red-bean.com/en/1.0/ch06s04.html