godot-cpp/misc/scripts/header_guards.sh

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#!/bin/bash
if [ ! -f "SConstruct" ]; then
echo "Warning: This script is intended to be run from the root of the Godot repository."
echo "Some of the paths checks may not work as intended from a different folder."
fi
files_invalid_guard=""
for file in $(find . -name "*.hpp" -print); do
# Skip generated files.
if [[ "$file" == "./gen/"* || "$file" == "./include/gen/"* ]]; then continue; fi
# Skip the test project.
if [[ "$file" == "./test/"* ]]; then continue; fi
bname=$(basename $file .hpp)
# NOTE: The "GODOT_CPP_" prefix is already used by the generated
# bindings, so we can't use that. We'll use "GODOT_" instead.
prefix="GODOT_"
# ^^ is bash builtin for UPPERCASE.
guard="${prefix}${bname^^}_HPP"
# Replaces guards to use computed name.
# We also add some \n to make sure there's a proper separation.
sed -i $file -e "0,/ifndef/s/#ifndef.*/\n#ifndef $guard/"
sed -i $file -e "0,/define/s/#define.*/#define $guard\n/"
sed -i $file -e "$ s/#endif.*/\n#endif \/\/ $guard/"
# Removes redundant \n added before, if they weren't needed.
sed -i $file -e "/^$/N;/^\n$/D"
# Check that first ifndef (should be header guard) is at the expected position.
# If not it can mean we have some code before the guard that should be after.
# "31" is the expected line with the copyright header.
first_ifndef=$(grep -n -m 1 "ifndef" $file | sed 's/\([0-9]*\).*/\1/')
if [[ "$first_ifndef" != "31" ]]; then
files_invalid_guard+="$file\n"
fi
done
if [[ ! -z "$files_invalid_guard" ]]; then
echo -e "The following files were found to have potentially invalid header guard:\n"
echo -e "$files_invalid_guard"
fi
diff=$(git diff --color)
# If no diff has been generated all is OK, clean up, and exit.
if [ -z "$diff" ] ; then
printf "Files in this commit comply with the header guards formatting rules.\n"
exit 0
fi
# A diff has been created, notify the user, clean up, and exit.
printf "\n*** The following differences were found between the code "
printf "and the header guards formatting rules:\n\n"
echo "$diff"
printf "\n*** Aborting, please fix your commit(s) with 'git commit --amend' or 'git rebase -i <hash>'\n"
exit 1