Failed experiment with generating patches

patcher.sh

#!/bin/bash
if [ "$1" == "--patcher" ] ; then
  find diffs/ -type f -exec patch {} {} ';'
elif [ "$1" == "--diff" ] ; then
  rm -rf diffs~
  mv diffs diffs~

  diff -r mediumish-theme-jekyll/ dist/ | grep -v '^Only in' |\
    awk '/^diff -r / { gather=1 ;
    target=$4 ;
    system("mkdir -p diffs/\"$(dirname " $4 ")\"") ;
    next }
    gather{ print >> "diffs/"target }'

  echo "Produced differences:"
  rm -f diffs/dist/_config.yml diffs/dist/Gemfile.lock
  find diffs/ -type f
else
  echo "Unknown option"
  echo "Run either with --patcher or --diff"
  exit 1
fi