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#!/bin/bash
# Basic test for mkfs.btrfs --compress --rootdir. Create a dataset and use it
# for filesystem creation with various compression levels.
source "$TEST_TOP/common" || exit
check_prereq mkfs.btrfs
check_prereq btrfs
check_global_prereq du
setup_root_helper
prepare_test_dev
tmp=$(_mktemp_dir mkfs-rootdir)
limit=$((128*1024*1024))
# Create dataset of approximate size 256M so the repeated compression does not take that long
for file in /usr/bin/[gx]*; do
run_check cp -axf --update --no-preserve=ownership,context "$file" "$tmp"
size=$(du -sb "$tmp" | awk '{print $1}')
if [ "$size" -gt "$limit" ]; then
break
fi
done
for file in /usr/lib*/lib[abcdef]*; do
run_check cp -axf --update --no-preserve=ownership,context "$file" "$tmp"
size=$(du -sb "$tmp" | awk '{print $1}')
if [ "$size" -gt "$limit" ]; then
break
fi
done
run_check du -sh "$tmp"
run_test()
{
local comp="$1"
run_check_mkfs_test_dev --rootdir "$tmp" --compress "$comp"
run_check $SUDO_HELPER "$TOP/btrfs" check "$TEST_DEV"
run_check_mount_test_dev
run_check du -sh "$TEST_MNT"
run_check_umount_test_dev
}
run_test lzo
run_test zlib
run_test zlib:1
run_test zlib:9
run_test zstd
run_test zstd:1
run_test zstd:15
run_check rm -rf -- "$tmp"
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