[SOLVED] Set right permissions for svn repository

Additionally you should set umask 002 while working with a repository so that all new files will be writable by owner and group. This is made mandatory by creating a wrapper script for svn and svnserve:

mv /usr/bin/svn /usr/bin/svn.orig &&
mv /usr/bin/svnserve /usr/bin/svnserve.orig &&
cat >> /usr/bin/svn << "EOF"
#!/bin/sh
umask 002
/usr/bin/svn.orig "$@"
EOF
cat >> /usr/bin/svnserve << "EOF"
#!/bin/sh
umask 002
/usr/bin/svnserve.orig "$@"
EOF
chmod 0755 /usr/bin/svn{,serve}

Source: Running a Subversion Server.