Finds and removes possible unused assets in your Rails app.

asset_disposer.sh

#!/bin/bash
#
# Delete probably unused assets (images) under app/assets

for DIRECTORY in $(find app/assets -type d)
do
  echo -e "Searching files in $DIRECTORY..."
  for FILEPATH in $(find $DIRECTORY -type f -name '*.jpg' -o -name '*.jpeg' -o -name '*.gif' -o -name '*.png')
  do
    FILENAME=$(basename $FILEPATH)
    if [[ -n $(grep -R $FILENAME app/) ]]; then
      echo "$FILENAME"
    else
      rm -f $FILEPATH
      red='\x1B[0;31m'
      NC='\x1B[0m'
      echo -e "${red}$FILEPATH deleted${NC}"
    fi
  done
done