#!/bin/sh

if [ $# -ne 1 ]; then
    cat<<EOF
Usage: ${0##*/} FOLDER

Compare current git repo with FOLDER.
EOF
    exit
fi

REPO="$(mktemp)"
FOLDER="$(mktemp)"
git ls-files | sort > "$REPO"
find "$1" -type f ! -path "*.git/*" | sed 's/^[^\/]*\///g' | sort > "$FOLDER"
rm -f "$REPO" "$FOLDER"

## Zsh version.
# comm -3 <(git ls-files | sort) <(find "$1" -type f ! -path "*.git/*" | sed 's/^[^\/]*\///g' | sort)