git-cache-meta -- simple file meta data caching and applying

Gentlemen, I have whipped up this:

#!/bin/sh -e
#git-cache-meta -- simple file meta data caching and applying.
#Simpler than etckeeper, metastore, setgitperms, etc.
: ${GIT_CACHE_META_FILE=.git_cache_meta}
case $@ in
    --store|--stdout)
	case $1 in --store) exec > $GIT_CACHE_META_FILE; esac
	find $(git ls-files) \
	    \( -user ${USER?} -o -printf 'chowm %u %p\n' \) \
	    \( -group $USER -o -printf 'chgrp %g %p\n' \) \
	    \( \( -type l -o -perm 755 -o -perm 644 \) -o -printf 'chmod %#m %p\n' \);;
    --apply) sh -e $GIT_CACHE_META_FILE;;
    *) 1>&2 echo "Usage: $0 --store|--stdout|--apply"; exit 1;;
esac