Automatically discover Image Format based on image file extension

[Liz Blanchard]

It would be great if Horizon could automatically prepopulate the "Format" field in the Create Image modal after the user has filled out the Image Source/Image File fields. This could be done based on the file extension and save the user from filling out one additional field in this modal.

[Shuichiro MAKIGAKI (shuichiro-makigaki)]

Sounds good. I'd like to take this over.

[Cindy Lu (clu-m)]

Hi guys,

I like this idea, but what about things like: http://uec-images.ubuntu.com/precise/current/precise-server-cloudimg-amd64-disk1.img? (from http://docs.openstack.org/image-guide/content/ch_obtaining_images.html)

this is a qcow2 format, but the file ext doesn't convey that.

[Shuichiro MAKIGAKI (shuichiro-makigaki)]

Yes, your question is reasonable.
However, I think it's ok to keep "Format" blank in that case. This means it keeps "Format" blank if it can't detect image format from file extension.

Actually, it's difficult to detect actual image format unless the image is uploaded.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/98995

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/98995
Committed: https://git.openstack.org/cgit/openstack/horizon/commit/?id=c16baae8fb66b50347c68aee6d3dab6cf8a4ede4
Submitter: Jenkins
Branch: master

commit c16baae8fb66b50347c68aee6d3dab6cf8a4ede4
Author: Shuichiro MAKIGAKI <email address hidden>
Date: Tue Jun 10 18:32:00 2014 +0900

    Automatically discover "Image Format" based on file extension

    This commit can automatically pre-populate the "Format" field in
    the "Create Image" modal after the user has filled out the "Image
    Source" or "Image File" fields. This can be done based on the file
    extension and save the user from filling out one additional field
    in this modal.

    Change-Id: Id6e3f3b3f8e354ce077a8f05f2bd5029b7fa9628
    Closes-Bug: #1324192