Main steps of configuring SVN replication on Linux

Note: This is tested in CentOS 5.5

Considering master SVN has already setup and configured with Apache web server.

1)      Install SVN (slave)

yum install mod_dav_svn subversion

2)      Configure with Apache web server

           

shell>cd /etc/httpd/conf.d/

shell>vim subversion.conf

# Make sure you uncomment the following if they are commented out

LoadModule dav_svn_module     modules/mod_dav_svn.so

LoadModule authz_svn_module   modules/mod_authz_svn.so

# Add the following to allow a basic authentication and point Apache to where the actual

# repository resides.

<Location /repos>

        DAV svn

        SVNPath /var/www/svn/repos

        AuthType Basic

        AuthName "Subversion repos"

        AuthUserFile /etc/svn-auth-conf

        Require valid-user

</Location>

3)      Adding SVN  users

shell> htpasswd -cm /etc/svn-auth-conf yourusername

New password:

Re-type new password:

shell> htpasswd -m /etc/svn-auth-conf anotherusername

New password:

Re-type new password:

4)      Configure repository

shell> cd /var/www/

shell> mkdir svn

shell> cd svn

shell> svnadmin create repos

shell> chown -R apache.apache repos

shell> service httpd restart

    5)   Make mirror repository (slave) revision properties modifiable by synchronizing user

                   (Considering synchronizing user as “svnmirror”)

shell>  cd /var/www/svn/repos/hooks

shell>  vi pre-revprop-change    

Mirror repository's pre-revprop-change hook script

#!/bin/sh

USER="$3"

if [ "$USER" = "svnmirror" ]; then exit 0; fi

echo "Only the svnmirror user may change revision properties" >&2

exit 1

shell> chmod 777  pre-revprop-change

6)     Create subversion access control (Only svnmirror user has write access )

shell>  cd /var/www/svn/repos/hooks

shell>  vi start-commit

Mirror repository's start-commit hook script

#!/bin/sh

USER="$2"

if [ "$USER" = " svnmirror" ]; then exit 0; fi

echo "Only the svnmirror user may commit new revisions" >&2

exit 1

shell> chmod 777 start-commit

7)      Register mirror repository for synchronization  and initial synchronization

svnsync initialize   file:///var/www/svn/repos http://sourceURL/svn/oop  --sync-username svnmirror --sync-password svnmirror123

svnsync synchronize  file:///var/www/svn/repos  --sync-username svnmirror --sync-password svnmirror123 >/var/log/svnsync/svnsyncdata.log

8)  Configure Cron job to synchronize master and slave (mirror) in every 5 minutes.

*/5 * * * * root svnsync synchronize  file:///var/www/svn/repos  --sync-username svnmirror --sync-password svnmirror123 >/var/log/svnsync/svnsyncdata.log