Render `kubectl diff` in (n|)vim

kubectl_diff_wrapper

#!/bin/bash

# To enable this:

# 1) Place this script in your path
# 2) chmod 755 it
# 3) Add `export KUBECTL_EXTERNAL_DIFF=kubectl_diff_wrapper`
#    to your shell's rc file

# Set this to "vim" if not using neovim
DIFFTOOL=nvim

DIFF=
for f in "${1}"/*; do
   other="${2}/${f##*/}"
   res=
   if ! cmp -s "$f" "$other"; then
      DIFF=1
      echo " - ${f##*/}"
      $DIFFTOOL -d "$f" "$other"
      res=$?
      if [[ "$res" -gt 0 ]]; then
         echo "\nDiff non-zero exit code ($res), aborting."
         exit 2
      fi
   fi
done
if [[ -z "$DIFF" ]]; then
   echo " - No changes"
   exit 0
fi
exit 1