Description of problem:
Looks like the cancel_sync is not cleaning up files under /var/lib/pulp/repos/

[root@preethi ~]# pulp-admin repo clone --id=f16 --clone_id=f16-clone1 --feed=parent -F
Repository [f16] is being cloned as [f16-clone1]
Clone: Canceled
Item Details: 
Tree Files: 0/5
RPMs: 763/3107

[root@preethi ~]# ls /var/lib/pulp//repos/f16-clone1
libreoffice-langpack-sl-3.4.3.2-11.fc16.x86_64.rpm
[root@preethi ~]# ls /var/lib/pulp//repos/
f15-clone  f15-clone1  f15-clone2  f16-clone  f16-clone1  pub  released


From the log

2011-11-16 14:25:05,321 31377:139982849177344: pulp.server.api.repo_clone_task:INFO: repo_clone_task:55 RepoCloneTask repo <f16-clone1> has been canceled
2011-11-16 14:25:05,324 31377:139982849177344: pulp.server.api.repo:INFO: repo:468 Delete API call invoked f16-clone1
2011-11-16 14:25:05,357 31377:139982849177344: pulp.server.api.keystore:INFO: keystore:200 mkdir: /var/lib/pulp/published/gpg/f16-clone1
2011-11-16 14:25:05,357 31377:139982849177344: pulp.server.api.keystore:INFO: keystore:185 unlinking: /var/lib/pulp/published/gpg/f16-clone1
2011-11-16 14:25:05,404 31377:139982849177344: pulp.server.api.repo:INFO: repo:574 removing repo files .... /var/lib/pulp//repos/f16-clone1
2011-11-16 14:25:05,507 31377:139981842544384: pulp.server.api.repo:ERROR: repo:1993 no repo exists for [f16-clone1]
2011-11-16 14:25:05,507 31377:139981842544384: pulp.server.api.repo_sync:INFO: repo_sync:133 Content sync canceled




Version-Release number of selected component (if applicable):
[root@preethi ~]# rpm -q pulp
pulp-0.0.248-1.fc15.noarch