update.py fails silently if module is not found

[Chris Buccella]

Example:

$ python update.py --base cinder --dest-dir ../cinder --modules middleware/base.py
Copying middleware/base.py under the cinder module in ../cinder
$

Clearly, appending the ".py" is incorrect, but there is no message printed informing the user that the copy failed.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/70191

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/70191
Committed: https://git.openstack.org/cgit/openstack/oslo-incubator/commit/?id=42ffde1a3df00651cf586a96a06b60e471ad4b41
Submitter: Jenkins
Branch: master

commit 42ffde1a3df00651cf586a96a06b60e471ad4b41
Author: Chris Buccella <email address hidden>
Date: Thu Jan 30 18:46:08 2014 +0000

    update.py fails silently if module is not found

    update.py can be used to copy individual modules into OpenStack components by
    using the --modules switch and providing a module name. However, if this module
    is not found is oslo, the user is not informed that the copy failed. Print a
    message in this case, and provide the path to the file that the script tried
    to copy.

    Change-Id: I6f811cd9a412d83a4d83f29c8f8398ca0503f7f4
    Closes-Bug: #1274647