github ci: update checkout action to v4 #9

	name: C/C++ CI

	on:
	push:
	branches:
	- master
	- exfat-next
	pull_request:
	branches:
	- master
	- exfat-next

	jobs:
	build:

	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v4
	- name: before test
	run: \|
	sudo apt-get install linux-headers-$(uname -r)
	sudo apt-get install xz-utils
	git clone https://github.com/namjaejeon/linux-exfat-oot
	export LD_LIBRARY_PATH=/usr/local/lib:$LD_LIBRARY_PATH
	export PATH=/usr/local/lib:$PATH
	- name: build test & install exfatprogs
	run: \|
	./autogen.sh > /dev/null
	./configure > /dev/null
	make -j$((`nproc`+1)) > /dev/null
	sudo make install > /dev/null
	- name: run fsck repair testcases
	run: \|
	cd tests
	sudo ./test_fsck.sh
	- name: create file/director test
	run: \|
	cd linux-exfat-oot
	make > /dev/null
	sudo make install > /dev/null
	sudo modprobe exfat
	sudo mkdir -p /mnt/test
	cd ..
	truncate -s 10G test.img
	sudo losetup /dev/loop22 test.img
	sudo mkfs.exfat /dev/loop22
	sudo mount -t exfat /dev/loop22 /mnt/test/
	cd /mnt/test/
	i=1;while [ $i -le 10000 ];do sudo touch file$i;if [ $? != 0 ]; then exit 1; fi; i=$(($i + 1));done
	sync
	sudo rm -rf *
	i=1;while [ $i -le 10000 ];do sudo mkdir dir$i;if [ $? != 0 ]; then exit 1; fi; i=$(($i + 1));done
	sync
	sudo rm -rf *
	i=1;while [ $i -le 10000 ];do sudo touch file$i;if [ $? != 0 ]; then exit 1; fi; i=$(($i + 1));done
	i=1;while [ $i -le 10000 ];do sudo mkdir dir$i;if [ $? != 0 ]; then exit 1; fi; i=$(($i + 1));done
	sync
	sudo fsck.exfat /dev/loop22
	sudo find . -delete
	sudo fsck.exfat /dev/loop22
	cd -

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