242 lines
8.8 KiB
Bash
Executable file
242 lines
8.8 KiB
Bash
Executable file
#!/usr/bin/env bash
|
|
|
|
# git pre-commit hook that runs a clang-format stylecheck.
|
|
# Features:
|
|
# - abort commit when commit does not comply with the style guidelines
|
|
# - create a patch of the proposed style changes
|
|
# Modifications for clang-format by rene.milk@wwu.de
|
|
|
|
# This file is part of a set of unofficial pre-commit hooks available
|
|
# at github.
|
|
# Link: https://github.com/githubbrowser/Pre-commit-hooks
|
|
# Contact: David Martin, david.martin.mailbox@googlemail.com
|
|
|
|
# Some quality of life modifications made for Godot Engine.
|
|
|
|
##################################################################
|
|
# SETTINGS
|
|
# Set path to clang-format binary.
|
|
CLANG_FORMAT=`which clang-format 2>/dev/null`
|
|
|
|
# Remove any older patches from previous commits. Set to true or false.
|
|
DELETE_OLD_PATCHES=false
|
|
|
|
# Only parse files with the extensions in FILE_EXTS. Set to true or false.
|
|
# If false every changed file in the commit will be parsed with clang-format.
|
|
# If true only files matching one of the extensions are parsed with clang-format.
|
|
PARSE_EXTS=true
|
|
|
|
# File types to parse. Only effective when PARSE_EXTS is true.
|
|
FILE_EXTS=".c .h .cpp .hpp .cc .hh .cxx .m .mm .inc .java .glsl"
|
|
|
|
# Use pygmentize instead of cat to parse diff with highlighting.
|
|
# Install it with `pip install pygments` (Linux) or `easy_install Pygments` (Mac)
|
|
PYGMENTIZE=`which pygmentize 2>/dev/null`
|
|
if [ ! -z "$PYGMENTIZE" ]; then
|
|
READER="pygmentize -l diff"
|
|
else
|
|
READER=cat
|
|
fi
|
|
|
|
# Path to zenity
|
|
ZENITY=`which zenity 2>/dev/null`
|
|
|
|
# Path to xmessage
|
|
XMSG=`which xmessage 2>/dev/null`
|
|
|
|
# Path to powershell (Windows only)
|
|
PWSH=`which powershell 2>/dev/null`
|
|
|
|
##################################################################
|
|
# There should be no need to change anything below this line.
|
|
|
|
. "$(dirname -- "$0")/canonicalize_filename.sh"
|
|
|
|
# exit on error
|
|
set -e
|
|
|
|
# check whether the given file matches any of the set extensions
|
|
matches_extension() {
|
|
local filename=$(basename "$1")
|
|
local extension=".${filename##*.}"
|
|
local ext
|
|
|
|
for ext in $FILE_EXTS; do [[ "$ext" == "$extension" ]] && return 0; done
|
|
|
|
return 1
|
|
}
|
|
|
|
# necessary check for initial commit
|
|
if git rev-parse --verify HEAD >/dev/null 2>&1 ; then
|
|
against=HEAD
|
|
else
|
|
# Initial commit: diff against an empty tree object
|
|
against=4b825dc642cb6eb9a060e54bf8d69288fbee4904
|
|
fi
|
|
|
|
# To get consistent formatting, we recommend contributors to use the same
|
|
# clang-format version as CI.
|
|
RECOMMENDED_CLANG_FORMAT_MAJOR_MIN="12"
|
|
RECOMMENDED_CLANG_FORMAT_MAJOR_MAX="14"
|
|
|
|
if [ ! -x "$CLANG_FORMAT" ] ; then
|
|
message="Error: clang-format executable not found. Please install clang-format $RECOMMENDED_CLANG_FORMAT_MAJOR_MAX."
|
|
|
|
if [ ! -t 1 ] ; then
|
|
if [ -x "$ZENITY" ] ; then
|
|
$ZENITY --error --title="Error" --text="$message"
|
|
exit 1
|
|
elif [ -x "$XMSG" ] ; then
|
|
$XMSG -center -title "Error" "$message"
|
|
exit 1
|
|
elif [ \( \( "$OSTYPE" = "msys" \) -o \( "$OSTYPE" = "win32" \) \) -a \( -x "$PWSH" \) ]; then
|
|
winmessage="$(canonicalize_filename "$(dirname -- "$0")/winmessage.ps1")"
|
|
$PWSH -noprofile -executionpolicy bypass -file "$winmessage" -center -title "Error" --text "$message"
|
|
exit 1
|
|
fi
|
|
fi
|
|
printf "$message\n"
|
|
printf "Set the correct path in $(canonicalize_filename "$0").\n"
|
|
exit 1
|
|
fi
|
|
|
|
# The returned string can be inconsistent depending on where clang-format comes from.
|
|
# Example output strings reported by `clang-format --version`:
|
|
# - Ubuntu: "Ubuntu clang-format version 11.0.0-2"
|
|
# - Fedora: "clang-format version 11.0.0 (Fedora 11.0.0-2.fc33)"
|
|
CLANG_FORMAT_VERSION="$(clang-format --version | sed "s/[^0-9\.]*\([0-9\.]*\).*/\1/")"
|
|
CLANG_FORMAT_MAJOR="$(echo "$CLANG_FORMAT_VERSION" | cut -d. -f1)"
|
|
|
|
if [[ "$CLANG_FORMAT_MAJOR" -lt "$RECOMMENDED_CLANG_FORMAT_MAJOR_MIN" || "$CLANG_FORMAT_MAJOR" -gt "$RECOMMENDED_CLANG_FORMAT_MAJOR_MAX" ]]; then
|
|
echo "Warning: Your clang-format binary is the wrong version ($CLANG_FORMAT_VERSION, expected between $RECOMMENDED_CLANG_FORMAT_MAJOR_MIN and $RECOMMENDED_CLANG_FORMAT_MAJOR_MAX)."
|
|
echo " Consider upgrading or downgrading clang-format as formatting may not be applied correctly."
|
|
fi
|
|
|
|
# create a random filename to store our generated patch
|
|
prefix="pre-commit-clang-format"
|
|
suffix="$(date +%s)"
|
|
patch="/tmp/$prefix-$suffix.patch"
|
|
|
|
# clean up any older clang-format patches
|
|
$DELETE_OLD_PATCHES && rm -f /tmp/$prefix*.patch
|
|
|
|
# create one patch containing all changes to the files
|
|
git diff-index --cached --diff-filter=ACMR --name-only $against -- | while read file;
|
|
do
|
|
# ignore thirdparty files
|
|
if grep -q "thirdparty" <<< $file; then
|
|
continue;
|
|
fi
|
|
if grep -q "platform/android/java/lib/src/com" <<< $file; then
|
|
continue;
|
|
fi
|
|
if grep -q "\-so_wrap." <<< $file; then
|
|
continue;
|
|
fi
|
|
|
|
# ignore file if we do check for file extensions and the file
|
|
# does not match any of the extensions specified in $FILE_EXTS
|
|
if $PARSE_EXTS && ! matches_extension "$file"; then
|
|
continue;
|
|
fi
|
|
|
|
# clang-format our sourcefile, create a patch with diff and append it to our $patch
|
|
# The sed call is necessary to transform the patch from
|
|
# --- $file timestamp
|
|
# +++ - timestamp
|
|
# to both lines working on the same file and having a/ and b/ prefix.
|
|
# Else it can not be applied with 'git apply'.
|
|
"$CLANG_FORMAT" -style=file "$file" --Wno-error=unknown | \
|
|
diff -u "$file" - | \
|
|
sed -e "1s|--- |--- a/|" -e "2s|+++ -|+++ b/$file|" >> "$patch"
|
|
done
|
|
|
|
# if no patch has been generated all is ok, clean up the file stub and exit
|
|
if [ ! -s "$patch" ] ; then
|
|
printf "Files in this commit comply with the clang-format rules.\n"
|
|
rm -f "$patch"
|
|
exit 0
|
|
fi
|
|
|
|
# a patch has been created, notify the user and exit
|
|
printf "\nThe following differences were found between the code to commit "
|
|
printf "and the clang-format rules:\n\n"
|
|
|
|
if [ -t 1 ] ; then
|
|
$READER "$patch"
|
|
printf "\n"
|
|
# Allows us to read user input below, assigns stdin to keyboard
|
|
exec < /dev/tty
|
|
terminal="1"
|
|
else
|
|
cat "$patch"
|
|
printf "\n"
|
|
# Allows non zero zenity/powershell output
|
|
set +e
|
|
terminal="0"
|
|
fi
|
|
|
|
while true; do
|
|
if [ $terminal = "0" ] ; then
|
|
if [ -x "$ZENITY" ] ; then
|
|
choice=$($ZENITY --text-info --filename="$patch" --width=800 --height=600 --title="Do you want to apply that patch?" --ok-label="Apply" --cancel-label="Do not apply" --extra-button="Apply and stage")
|
|
if [ "$?" = "0" ] ; then
|
|
yn="Y"
|
|
else
|
|
if [ "$choice" = "Apply and stage" ] ; then
|
|
yn="S"
|
|
else
|
|
yn="N"
|
|
fi
|
|
fi
|
|
elif [ -x "$XMSG" ] ; then
|
|
$XMSG -file "$patch" -buttons "Apply":100,"Apply and stage":200,"Do not apply":0 -center -default "Do not apply" -geometry 800x600 -title "Do you want to apply that patch?"
|
|
choice=$?
|
|
if [ "$choice" = "100" ] ; then
|
|
yn="Y"
|
|
elif [ "$choice" = "200" ] ; then
|
|
yn="S"
|
|
else
|
|
yn="N"
|
|
fi
|
|
elif [ \( \( "$OSTYPE" = "msys" \) -o \( "$OSTYPE" = "win32" \) \) -a \( -x "$PWSH" \) ]; then
|
|
winmessage="$(canonicalize_filename "$(dirname -- "$0")/winmessage.ps1")"
|
|
$PWSH -noprofile -executionpolicy bypass -file "$winmessage" -file "$patch" -buttons "Apply":100,"Apply and stage":200,"Do not apply":0 -center -default "Do not apply" -geometry 800x600 -title "Do you want to apply that patch?"
|
|
choice=$?
|
|
if [ "$choice" = "100" ] ; then
|
|
yn="Y"
|
|
elif [ "$choice" = "200" ] ; then
|
|
yn="S"
|
|
else
|
|
yn="N"
|
|
fi
|
|
else
|
|
printf "Error: zenity, xmessage, or powershell executable not found.\n"
|
|
exit 1
|
|
fi
|
|
else
|
|
read -p "Do you want to apply that patch (Y - Apply, N - Do not apply, S - Apply and stage files)? [Y/N/S] " yn
|
|
fi
|
|
case $yn in
|
|
[Yy] ) git apply $patch;
|
|
printf "The patch was applied. You can now stage the changes and commit again.\n\n";
|
|
break
|
|
;;
|
|
[Nn] ) printf "\nYou can apply these changes with:\n git apply $patch\n";
|
|
printf "(may need to be called from the root directory of your repository)\n";
|
|
printf "Aborting commit. Apply changes and commit again or skip checking with";
|
|
printf " --no-verify (not recommended).\n\n";
|
|
break
|
|
;;
|
|
[Ss] ) git apply $patch;
|
|
git diff-index --cached --diff-filter=ACMR --name-only $against -- | while read file;
|
|
do git add $file;
|
|
done
|
|
printf "The patch was applied and the changed files staged. You can now commit.\n\n";
|
|
break
|
|
;;
|
|
* ) echo "Please answer yes or no."
|
|
;;
|
|
esac
|
|
done
|
|
exit 1 # we don't commit in any case
|