godot/misc/scripts/file_format.sh
Rémi Verschelde 266280ffca
CI: Visibly print trailing whitespace when static checks fail
GitHub Actions seems to be hiding colored whitespace, and after lots of
attempts I couldn't find a way to work it around.

So instead I'm using a perl expression to replace trailing spaces with
`·` and tabs with `<TAB>` in the ANSI colored diff output. This ensure
that they're visible, and they are properly colored as expected too.
2023-04-05 18:31:46 +02:00

84 lines
2.9 KiB
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#!/usr/bin/env bash
# This script ensures proper POSIX text file formatting and a few other things.
# This is supplementary to clang_format.sh and black_format.sh, but should be
# run before them.
# We need dos2unix and isutf8.
if [ ! -x "$(command -v dos2unix)" -o ! -x "$(command -v isutf8)" ]; then
printf "Install 'dos2unix' and 'isutf8' (moreutils package) to use this script.\n"
fi
set -uo pipefail
IFS=$'\n\t'
# Loops through all text files tracked by Git.
git grep -zIl '' |
while IFS= read -rd '' f; do
# Exclude some types of files.
if [[ "$f" == *"csproj" ]]; then
continue
elif [[ "$f" == *"sln" ]]; then
continue
elif [[ "$f" == *".bat" ]]; then
continue
elif [[ "$f" == *".out" ]]; then
# GDScript integration testing files.
continue
elif [[ "$f" == *"patch" ]]; then
continue
elif [[ "$f" == *"pot" ]]; then
continue
elif [[ "$f" == *"po" ]]; then
continue
elif [[ "$f" == "thirdparty/"* ]]; then
continue
elif [[ "$f" == *"/thirdparty/"* ]]; then
continue
elif [[ "$f" == "platform/android/java/lib/src/com/google"* ]]; then
continue
elif [[ "$f" == *"-so_wrap."* ]]; then
continue
elif [[ "$f" == *".test.txt" ]]; then
continue
fi
# Ensure that files are UTF-8 formatted.
isutf8 "$f" >> utf8-validation.txt 2>&1
# Ensure that files have LF line endings and do not contain a BOM.
dos2unix "$f" 2> /dev/null
# Remove trailing space characters and ensures that files end
# with newline characters. -l option handles newlines conveniently.
perl -i -ple 's/\s*$//g' "$f"
done
diff=$(git diff --color)
if [ ! -s utf8-validation.txt ] && [ -z "$diff" ] ; then
# If no UTF-8 violations were collected (the file is empty) and
# no diff has been generated all is OK, clean up, and exit.
printf "\e[1;32m*** Files in this commit comply with the file formatting rules.\e[0m\n"
rm -f utf8-validation.txt
exit 0
fi
if [ -s utf8-validation.txt ]
then
# If the file has content and is not empty, violations
# detected, notify the user, clean up, and exit.
printf "\n\e[1;33m*** The following files contain invalid UTF-8 character sequences:\e[0m\n\n"
cat utf8-validation.txt
fi
rm -f utf8-validation.txt
if [ ! -z "$diff" ]
then
# A diff has been created, notify the user, clean up, and exit.
printf "\n\e[1;33m*** The following changes must be made to comply with the formatting rules:\e[0m\n\n"
# Perl commands replace trailing spaces with `·` and tabs with `<TAB>`.
printf "$diff\n" | perl -pe 's/(.*[^ ])( +)(\e\[m)$/my $spaces="·" x length($2); sprintf("$1$spaces$3")/ge' | perl -pe 's/(.*[^\t])(\t+)(\e\[m)$/my $tabs="<TAB>" x length($2); sprintf("$1$tabs$3")/ge'
fi
printf "\n\e[1;91m*** Please fix your commit(s) with 'git commit --amend' or 'git rebase -i <hash>'\e[0m\n"
exit 1