squashfs-tools/tests/Squashfs-compression-test.sh
Troy Dawson dbf3e07f86 RHEL 9.0.0 Alpha bootstrap
The content of this branch was automatically imported from Fedora ELN
with the following as its source:
https://src.fedoraproject.org/rpms/squashfs-tools#c671752333838c266337705c1a0c09213ca1c4e7
2020-10-15 09:57:12 -07:00

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#!/bin/bash
# We need rpmdev-vercmp
rpm -q rpmdevtools > /dev/null 2>&1 || (echo 'rpmdev-vercmp from rpmdevtools is needed to run this script, aborting (failed).'; exit 1)
# Define block sizes
blocks=(4K 1M)
# Define fill files
fill=(/dev/zero /dev/urandom)
# Define number of iterations
iter=5
# Define fragment sizes
frags=(0 1 2047 4095)
# Define test directory
testdir=/tmp/test-squashfs
# Define mount point
mp=${testdir}/mnt
# Define data directory
datadir=${testdir}/data
# Check for squashfs-tools version and set compression types to test
sqfsver=`rpm -q --qf '%{EVR}' squashfs-tools`
if rpmdev-vercmp 4.1 ${sqfsver} > /dev/null; [ $? == '11' ]; then
ucomp=('gzip')
elif rpmdev-vercmp 4.2 ${sqfsver} > /dev/null; [ $? == '11' ]; then
ucomp=(gzip lzo lzma)
elif rpmdev-vercmp 4.3-1 ${sqfsver} > /dev/null; [ $? == '11' ]; then
ucomp=(gzip lzo lzma xz)
elif rpmdev-vercmp 4.3-21 ${sqfsver} > /dev/null; [ $? == '11' ]; then
ucomp=(gzip lzo lzma xz lz4)
else
ucomp=(gzip lzo lzma xz lz4 zstd)
fi
# Check for kernel verion and set mount test compression types
kernel=`uname -r`
if rpmdev-vercmp 2.6.36 ${kernel} > /dev/null; [ $? == '11' ]; then
mcomp=('gzip')
elif rpmdev-vercmp 2.6.38 ${kernel} > /dev/null; [ $? == '11' ]; then
mcomp=(gzip lzo)
elif rpmdev-vercmp 3.19 ${kernel} > /dev/null; [ $? == '11' ]; then
mcomp=(gzip lzo xz)
elif rpmdev-vercmp 4.14 ${kernel} > /dev/null; [ $? == '11' ]; then
mcomp=(gzip lzo xz lz4)
else
mcomp=(gzip lzo xz lz4 zstd)
fi
# Check for uid 0 and print a warning if not
[ ${UID} -ne 0 ] && echo 'Mount tests will not be performed when not running as root'
# Check if test directory exists and make if not
[ -d ${testdir} ] || mkdir ${testdir}
[ -d ${testdir} ] || (echo "Unable to make '${testdir}', aborting (failed)."; exit 1)
# Check if mount point directory exists and make if not
[ -d ${mp} ] || mkdir ${mp}
[ -d ${mp} ] || (echo "Unable to make '${mp}', aborting (failed)."; exit 1)
# Check if data directory exists and make if not
if [ -d ${datadir} ]; then
echo "Using existing data directory."
else
echo "Building data directory."
mkdir ${datadir}
[ -d ${datadir} ] || (echo "Unable to make '${datadir}', aborting (failed)."; exit 1)
for size in ${frags[*]}; do
for file in ${fill[*]}; do
dd if=${file} of=${datadir}/frag-`basename ${file}`-${size} bs=1 count=${size} > /dev/null 2>&1
done
done
for size in ${blocks[*]}; do
for ((count=1;${count}<=${iter};count++)); do
for file in ${fill[*]}; do
dd if=${file} of=${datadir}/file-`basename ${file}`-${size}-${count} bs=${size} count=${count} > /dev/null 2>&1
done
done
done
for size1 in ${frags[*]}; do
for file1 in ${fill[*]}; do
for size2 in ${blocks[*]}; do
for ((count=1;${count}<=${iter};count++)); do
for file2 in ${fill[*]}; do
cat ${datadir}/file-`basename ${file2}`-${size2}-${count} ${datadir}/frag-`basename ${file1}`-${size1} > ${datadir}/combined-`basename ${file2}`-${size2}-${count}-`basename ${file1}`-${size1}
done
done
done
done
done
fi
# Run unmounted tests
for comp in ${ucomp[*]}; do
echo "Building squashfs image using ${comp} compression."
if [ "${comp}" == gzip ]; then
mksquashfs ${datadir} ${testdir}/sq.img || (echo "mksquashfs failed for ${comp} compression."; continue)
else
mksquashfs ${datadir} ${testdir}/sq.img -comp ${comp} || (echo "mksquashfs failed for ${comp} compression."; continue)
fi
echo "Testing unmounted extract using ${comp} compression."
unsquashfs -d ${testdir}/sq ${testdir}/sq.img || echo "unsquashfs failed for ${comp} compression."
diff -r -q ${testdir}/sq ${datadir} || (echo "Extract test failed for ${comp} compression."; exit)
rm -rf ${testdir}/sq
if [ ${UID} == 0 ]; then
for kern in ${mcomp[*]}; do
if [ ${kern} == ${comp} ]; then
echo "Testing mounted image using ${comp} compression."
mount -r -o loop -t squashfs ${testdir}/sq.img ${mp} || echo "Mount failed.";
diff -r -q ${mp} ${datadir} || echo "Mounted test failed for ${comp} compression."
umount ${mp}
break
fi
done
fi
rm -f ${testdir}/sq ${testdir}/sq.img
done