filtering files for code check seperately to enable fast use of git pre-commit hook to check code style

ask user to install pre-commit hook when code style is checked

Tools/check_code_style_all.sh

@@ -1,35 +1,55 @@
 #!/usr/bin/env bash
 set -eu
 
+ASTYLE_VER_REQUIRED="Artistic Style Version 2.05.1"
+astyle_ver() {
+	echo "PX4 requires ${ASTYLE_VER_REQUIRED}"
+	echo "You can get the correct version here: https://github.com/PX4/astyle/releases/tag/2.05.1"
+}
+
+# check if astyle is installed
+condition=$(which astyle 2>/dev/null | grep -v "not found" | wc -l)
+if [ $condition -eq 0 ]; then
+	echo "astyle is not installed"
+	astyle_ver
+	exit 1
+else
+	ASTYLE_VER=`astyle --version`
+
+	if [ "$ASTYLE_VER" != "$ASTYLE_VER_REQUIRED" ]; then
+		echo "Error: you're using ${ASTYLE_VER}"
+		astyle_ver
+		exit 1
+	fi
+fi
+
+CI="${CI:-false}"
+DIR=$(cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd)
+
 if [[ "$@" == "--fix" ]]
 then
     export PX4_ASTYLE_FIX=1
 fi
 
-DIR=$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )
 
-find src \
-    -path src/lib/DriverFramework -prune -o \
-    -path src/lib/ecl -prune -o \
-    -path src/lib/external_lgpl -prune -o \
-    -path src/lib/mathlib -prune -o \
-    -path src/lib/matrix -prune -o \
-    -path src/modules/attitude_estimator_ekf -prune -o \
-    -path src/modules/commander -prune -o \
-    -path src/examples/ekf_att_pos_estimator -prune -o \
-    -path src/examples/attitude_estimator_ekf -prune -o \
-    -path src/modules/navigator -prune -o \
-    -path src/modules/sdlog2 -prune -o \
-    -path src/modules/uavcan -prune -o \
-    -path src/modules/uavcan/libuavcan -prune -o \
-    -type f \( -name "*.c" -o -name "*.h" -o -name "*.cpp" -o -name "*.hpp" \) \
-    -not -name '*generated.h' \
-    -not -name '*uthash.h' \
-    -not -name '*utstring.h' \
-    -not -name '*utlist.h' \
-    -not -name '*utarray.h' \
-    -print0 | xargs -0 -n 1 -P 8 -I % ${DIR}/check_code_style.sh %
+# install git pre-commit hook
+HOOK_FILE="$DIR/../.git/hooks/pre-commit"
+if [ ! -f $HOOK_FILE ] && [ "$CI" != "true" ]; then
+	echo ""
+	echo -e "\033[31mNinja tip: add a git pre-commit hook to automatically check code style\033[0m"
+	echo -e "Would you like to install one now? (\033[94mcp ./Tools/pre-commit .git/hooks/pre-commit\033[0m): [y/\033[1mN\033[0m]"
 
+	read user_cmd
+	if [ "$user_cmd" == "y" ]; then
+		echo -e "copying ./Tools/pre-commit -> .git/hooks/pre-commit"
+		cp $DIR/pre-commit $HOOK_FILE
+		echo -e "\033[94mGreat, hook installed!\033[0m (checking style now)"
+	else
+		echo -e "\033[94mOk, I will remind you again later!\033[0m (checking style now)"
+	fi
+fi
+
+${DIR}/files_to_check_code_style.sh | xargs -n 1 -P 8 -I % ${DIR}/check_code_style.sh %
 
 if [ $? -eq 0 ]; then
     echo "Format checks passed"