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added checksum test to ensure file attributes, permissions and content match

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Markus Ressel 2020-07-30 15:30:11 +02:00
parent b895381634
commit c85713ab47
1 changed files with 57 additions and 19 deletions
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76
zfs-inplace-rebalancing.sh
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@ -18,10 +18,7 @@ Black='\033[0;30m' # Black
Red='\033[0;31m' # Red
Green='\033[0;32m' # Green
Yellow='\033[0;33m' # Yellow
Blue='\033[0;34m' # Blue
Purple='\033[0;35m' # Purple
Cyan='\033[0;36m' # Cyan
White='\033[0;37m' # White
## Functions
@ -38,11 +35,12 @@ function rebalance () {
current_index="$((current_index + 1))"
progress_percent=$(echo "scale=2; ${current_index}*100/${file_count}" | bc)
color_echo "$Green" "Progress -- Files: ${current_index}/${file_count} (${progress_percent}%)"
color_echo "$Cyan" "Progress -- Files: ${current_index}/${file_count} (${progress_percent}%)"
tmp_extension=".balance"
tmp_file_path="${file_path}${tmp_extension}"
echo "Copying '${file_path}' to '${file_path}${tmp_extension}'..."
echo "Copying '${file_path}' to '${tmp_file_path}'..."
if [[ "${OSTYPE,,}" == "linux-gnu"* ]]; then
# Linux
@ -50,18 +48,9 @@ function rebalance () {
# -d -- keep symlinks (dont copy target)
# -x -- stay on one system
# -p -- preserve ACLs too
cp -adxp "${file_path}" "${file_path}${tmp_extension}"
elif [[ "${OSTYPE,,}" == "darwin"* ]]; then
# Mac OSX
# (should be the same as bsd, but untested!)
# -a -- keep attributes
# -d -- keep symlinks (dont copy target)
# -x -- stay on one system
# -p -- preserve ACLs too
cp -adxp "${file_path}" "${file_path}${tmp_extension}"
elif [[ "${OSTYPE,,}" == "freebsd"* ]]; then
cp -adxp "${file_path}" "${tmp_file_path}"
elif [[ "${OSTYPE,,}" == "darwin"* ]] || [[ "${OSTYPE,,}" == "freebsd"* ]]; then
# Mac OS
# FreeBSD
# -a -- Archive mode. Same as -RpP.
@ -69,17 +58,66 @@ function rebalance () {
# -p -- Cause cp to preserve the following attributes of each source file
# in the copy: modification time, access time, file flags, file mode,
# ACL, user ID, and group ID, as allowed by permissions.
cp -axp "${file_path}" "${file_path}${tmp_extension}"
cp -axp "${file_path}" "${tmp_file_path}"
else
echo "Unsupported OS type: $OSTYPE"
exit 1
fi
# compare copy against original to make sure nothing went wrong
echo "Comparing copy against original..."
if [[ "${OSTYPE,,}" == "linux-gnu"* ]]; then
# Linux
# file attributes
original_md5=$(lsattr "${file_path}" | awk '{print $1}' | md5sum -b | awk '{print $1}')
# file permissions, owner, group
original_md5="${original_md5} $(ls -lha "${file_path}" | awk '{print $1 " " $3 " " $4}' | md5sum -b | awk '{print $1}')"
# file content
original_md5="${original_md5} $(md5sum -b "${file_path}" | awk '{print $1}')"
# file attributes
copy_md5=$(lsattr "${tmp_file_path}" | awk '{print $1}' | md5sum -b | awk '{print $1}')
# file permissions, owner, group
copy_md5="${copy_md5} $(ls -lha "${tmp_file_path}" | awk '{print $1 " " $3 " " $4}' | md5sum -b | awk '{print $1}')"
# file content
copy_md5="${copy_md5} $(md5sum -b "${tmp_file_path}" | awk '{print $1}')"
elif [[ "${OSTYPE,,}" == "darwin"* ]] || [[ "${OSTYPE,,}" == "freebsd"* ]]; then
# Mac OS
# FreeBSD
# file attributes
original_md5=$(lsattr "${file_path}" | awk '{print $1}' | md5 -q)
# file permissions, owner, group
original_md5="${original_md5} $(ls -lha "${file_path}" | awk '{print $1 " " $3 " " $4}' | md5 -q)"
# file content
original_md5="${original_md5} $(md5 -q "${file_path}")"
# file attributes
copy_md5=$(lsattr "${tmp_file_path}" | awk '{print $1}' | md5 -q)
# file permissions, owner, group
copy_md5="${copy_md5} $(ls -lha "${tmp_file_path}" | awk '{print $1 " " $3 " " $4}' | md5 -q)"
# file content
copy_md5="${copy_md5} $(md5 -q "${tmp_file_path}")"
else
echo "Unsupported OS type: $OSTYPE"
exit 1
fi
if [[ "${original_md5,,}" == "${copy_md5,,}"* ]]; then
color_echo "${Green}" "MD5 OK"
else
color_echo "${Red}" "MD5 FAILED: ${original_md5} != ${copy_md5}"
exit 1
fi
echo "Removing original '${file_path}'..."
rm "${file_path}"
echo "Renaming temporary copy to original '${file_path}'..."
mv "${file_path}${tmp_extension}" "${file_path}"
mv "${tmp_file_path}" "${file_path}"
}
root_path=$1