How to find unused images in an Xcode project?

Question

Has anyone a one-line to find unused images in an Xcode project? (Assuming all the files are referenced by name in code or the project files - no code generated file names.)

These files tend to build up over the life of a project and it can be hard to tell if it's safe to delete any given png.

Answer 1

This is a more robust solution - it checks for any reference to the basename in any text file. Note the solutions above that didn't include storyboard files (completely understandable, they didn't exist at the time).

Ack makes this pretty fast, but there are some obvious optimizations to make if this script runs frequently. This code checks every basename twice if you have both retina/non-retina assets, for example.

#!/bin/bash  for i in `find . -name "*.png" -o -name "*.jpg"`; do      file=`basename -s .jpg "$i" | xargs basename -s .png | xargs basename -s @2x`     result=`ack -i "$file"`     if [ -z "$result" ]; then         echo "$i"     fi done  # Ex: to remove from git # for i in `./script/unused_images.sh`; do git rm "$i"; done 

Answer 2

For files which are not included in project, but just hang-around in the folder, you can press

cmd ⌘ + alt ⌥ + A

and they won't be grayed out.

For files which are not referenced neither in xib nor in code, something like this might work:

#!/bin/sh PROJ=`find . -name '*.xib' -o -name '*.[mh]'`  find . -iname '*.png' | while read png do     name=`basename $png`     if ! grep -qhs "$name" "$PROJ"; then         echo "$png is not referenced"     fi done