get rid of some comments

Signed-off-by: Tim Serong <[email protected]>

scripts/lib/image

@@ -49,14 +49,11 @@ pull_images() {
   local repository
 
   if [ -z "$USE_LOCAL_IMAGES" ]; then
-    # this rotten thing exits with
-    # time="2024-05-22T10:50:00Z" level=fatal msg="exit status 123"
-    # if _any_ invocation of the command fails! so we have no way to
-    # know which invocation ruined it for all of us...
-    #xargs -n1 -t docker image pull < $image_list
-    # ...we'll (hopefully) get a better idea if we do this in a loop....
+    # Doing this in a loop rather than using `xargs` means if any individual
+    # image fails to pull, we bail out immediately and can see which image
+    # caused the problem.
     for image in $(cat $image_list); do
-      docker pull $image
+      docker image pull --quiet $image
     done
     return
   fi
@@ -94,11 +91,8 @@ save_image()
 
   local archive_name="$(basename ${image_list%.txt}).tar"
   local archive_file="${save_dir}/${archive_name}"
-  echo "tserong: pulling images"
   pull_images $image_list
-  echo "tserong: images pulled, saving images"
   docker image save -o $archive_file $(<${image_list})
-  echo "tserong: images saved, compressing"
   zstd --rm $archive_file
 
   add_image_list_to_metadata $image_type $bundle_dir $image_list "${archive_file}.zst"