Comment 7 for bug 1574512

The cli documentation provides the following help on the '--file' parameter:

 $ glance help image-create | grep file
                           [--property <key=value>] [--file <FILE>]
  --file <FILE> Local file that contains disk image to be uploaded

And the documented format works as expected, ie:

 --file ~/somefile

works.

We do not document using an '=' sign:

 --file=~/somefile

so is probably not currently supported.

I think we need to reach a consensus as to whether this undocumented form of the command is supported or not.

For reference the openstack client behaves the same way:

 $ openstack image create --file=~/homefile x1
 [Errno 2] No such file or directory: '~/homefile'

as does swift

 $ swift download container1 homefile --output=~/x
 Error downloading object 'container1/homefile': [Errno 2] No such file or directory: u'~/x'