check the commits between two images in the opencord repo

images-diff.sh

images=( "$@" )
commits=()

if [ ${#images[@]} != 2 ]
then
  printf "You need to provide two images only, eg:\n"
  printf "\tbash $0 voltha/voltha-rw-core:2.3.6 voltha/voltha-rw-core:2.4.0\n"
  exit 1
fi

printf "\nDownloading images\n"
for image in ${images[*]}
do
  docker pull $image
done

printf "\nChecking commit used to build image\n"
for image in ${images[*]}
do
  commit=$(docker inspect $image | jq -r '.[].Config.Labels["org.label-schema.vcs-ref"]')
  commits+=("$commit")
done
echo "${commits[0]}" "${commits[1]}"

printf "\nChecking for repo\n"
for image in ${images[*]}
do
  repo=$(docker inspect $image | jq -r '.[].Config.Labels["org.label-schema.vcs-url"]')
done
echo $repo

printf "\nCloning repo\n"

mkdir -p tmp
cd tmp && git clone $repo .

image_name=$(echo $images[0]| grep -oE "\/([a-z-]+)[:@]" | awk '{print substr($0, 2, length($0) - 2)}')
printf "\nCommits between the two $image_name images\n"
git log --pretty="%C(Yellow)%h  %C(reset)%ad (%C(Green)%cr%C(reset))%x09 %C(Cyan)%an: %C(reset)%s" "${commits[0]}".."${commits[1]}"
cd ..
rm -rf tmp