#!/bin/bash

if [[ ! -e '{{executable}}' ]]; then
  echo >&2 'Not modifying {{target}} because {{executable}} is not installed.'
  exit 0
fi

if [[ ! -L '{{target}}' ]]; then
  echo >&2 'Not modifying {{target}} because it is not a symlink.'
  exit 0
fi

# shellcheck disable=SC2193 # these are just template placeholders
if [[ '{{executable}}' == *'/{{pkgname}}/'* ]]; then
  # Move original executable back into place
  mv -fv '{{executable}}' '{{target}}'
  rmdir -pv --ignore-fail-on-non-empty "$(dirname '{{executable}}')"
else
  # Modify symlink so it points to the original executable
  echo >&2 'Restoring original {{target}}'
  ln -fnsv '{{executable}}' '{{target}}'
fi