#!/bin/bash

# Loops through all text files tracked by Git.

git grep -zIl '' |

while IFS= read -rd '' f; do

# Exclude some types of files.

if [[ $f == *"proj" ]]; then

continue

elif [[ $f == *"filters" ]]; then

continue

elif [[ $f == *"sln" ]]; then

continue

elif [[ $f == *"json" ]]; then

continue

elif [[ $f == *"min.js" ]]; then

continue

fi

# Ensures that files are UTF-8 formatted.

recode UTF-8 $f 2> /dev/null

# Ensures that files have LF line endings.

dos2unix $f 2> /dev/null

# Ensures that files do not contain a BOM.

sed -i '1s/^\xEF\xBB\xBF//' "$f"

# Ensures that files end with newline characters.

tail -c1 < "$f" | read -r _ || echo >> "$f";

done

git diff > patch.patch

FILESIZE=$(stat -c%s patch.patch)

MAXSIZE=5

# If no patch has been generated all is OK, clean up, and exit.

if (( FILESIZE < MAXSIZE )); then

printf "Files in this commit comply with the formatting rules.\n"

rm -f patch.patch

exit 0

fi

# A patch has been created, notify the user, clean up, and exit.

printf "\n*** The following differences were found between the code "

printf "and the formatting rules:\n\n"

cat patch.patch

printf "\n*** Aborting, please fix your commit(s) with 'git commit --amend' or 'git rebase -i <hash>'\n"

rm -f patch.patch

exit 1