Glance image delete output

Deleting an already deleted image using admin user is throwing an
error "404 Not Found" which is confusing. Deleting an image that does
not exist throws "No image with a name or ID of 'image-id' exists."

Updated the code so that trying to delete an already deleted image
throws "No image with an ID of 'image-id' exists." error.

Closes-Bug: #1333119
Change-Id: I8f9a6174663337a0f48aafa029a4339c32eb2134
Co-Authored-By: Abhishek Talwar <abhishek.talwar@tcs.com>
Co-Authored-By: Kamil Rykowski <kamil.rykowski@intel.com>

glanceclient/v1/shell.py

@@ -321,6 +321,9 @@ def do_image_delete(gc, args):
     """Delete specified image(s)."""
     for args_image in args.images:
         image = utils.find_resource(gc.images, args_image)
+        if image and image.status == "deleted":
+            msg = "No image with an ID of '%s' exists." % image.id
+            raise exc.CommandError(msg)
         try:
             if args.verbose:
                 print('Requesting image delete for %s ...' %

glanceclient/v2/shell.py

@@ -261,6 +261,10 @@ def do_image_upload(gc, args):
 @utils.arg('id', metavar='<IMAGE_ID>', help='ID of image to delete.')
 def do_image_delete(gc, args):
     """Delete specified image."""
+    image = gc.images.get(args.id)
+    if image and image.status == "deleted":
+        msg = "No image with an ID of '%s' exists." % image.id
+        utils.exit(msg)
     gc.images.delete(args.id)