#!/usr/bin/env bash
#
# WARNING: Rubocop 0.36.0 can turn not(foo) into notfoo :-(  Need to check that
#          or wait for 0.37.x to be safe.
#
# Perform automated cleanp of ruby files leaving only uncorrected problems'
# rubocop:disable lines in the files.
#
# e.g.
#
# for f in `grep -rl 'rubocop:disable all' app/controllers`; do
#   echo $f
#   rubocleanup "$f"
#   git add "$f"
#   git commit -m "Rubocop automated cleanup: $f"
# done

set -e

function cleanup {
  local file=${1?"$0: missing file name"}

  sed -e"/^ *# rubocop:/d" < "$file" > "$file~"

  bundle exec rubocop --auto-correct "$file~" >/dev/null || true

  disables=$(bundle exec rubocop -f j "$file~" \
  | jq ".files[].offenses[].cop_name" \
  | sort \
  | uniq \
  | tr -d '"' \
  | sed -e 's/^/# rubocop:disable /')

  (echo "$disables"; cat "$file~") > "$file"

  rm "$file~"
}

for file in "$@"; do
  cleanup "$file"
done