Non-failing cargo fmt git hook for files patched in current staging

pre-commit

#!/usr/bin/env bash

Green='\e[0;32m'        # Green
Red='\e[0;31m'          # Red
Color_Off='\e[0m'       # Text Reset

files=$(cargo fmt -- --check --files-with-diff)

staged=$(git diff --name-only --staged)

list_files=""
for file in $staged; do
    f=$(echo "$files" | xargs -n 1 echo |  grep "$file")
    list_files="$list_files $f"
done


if [ -z "$list_files" ]; then
    echo -e "${Green}No format fails${Color_Off}"
else
    echo -e "${Red}These files in HEAD have formatting issues:${Color_Off}"
    echo -e ""
    echo -e "$list_files" | sed "s,$(realpath "$PWD")/,,g" | xargs -n 1 echo | sed 's,^,\t,'
    echo -e ""
    echo -e "${Red}Your code has formatting issues in files listed above.${Color_Off}"
fi