You cannot export Subversion repositories directly from Backlog.
The Subversion repository can be exported within Subversion with the svnsync command.
Below is a sample of the steps on Linux OS:
#!/bin/bash # # Script to svnsync "Backlog" project repository. # if [ $# -ne 2 ]; then echo "Usage: $0 [space key] [project key]" exit 1; fi SPACE_KEY=$1 PROJECT_KEY=$2 cwd=`pwd` hook_revprop=${PROJECT_KEY}/hooks/pre-revprop-change svnadmin create $PROJECT_KEY echo '#!/bin/sh' > $hook_revprop echo 'exit 0' >> $hook_revprop chmod +x $hook_revprop svnsync init file://${cwd}/${PROJECT_KEY} https://${SPACE_KEY}.backlog.com/svn/${PROJECT_KEY} svnsync sync file://${cwd}/${PROJECT_KEY}