mirror of
https://github.com/markusressel/zfs-inplace-rebalancing
synced 2026-02-05 05:24:07 +00:00
96 lines
2.7 KiB
Bash
Executable File
96 lines
2.7 KiB
Bash
Executable File
#!/usr/bin/env bash
|
|
|
|
# exit script on error
|
|
set -e
|
|
# exit on undeclared variable
|
|
set -u
|
|
|
|
# index used for progress
|
|
current_index=0
|
|
|
|
## Color Constants
|
|
|
|
# Reset
|
|
Color_Off='\033[0m' # Text Reset
|
|
|
|
# Regular Colors
|
|
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
|
|
|
|
# print a given text entirely in a given color
|
|
function color_echo () {
|
|
color=$1
|
|
text=$2
|
|
echo -e "${color}${text}${Color_Off}"
|
|
}
|
|
|
|
# rebalance a specific file
|
|
function rebalance () {
|
|
file_path=$1
|
|
|
|
current_index="$((current_index + 1))"
|
|
progress_percent=$(echo "scale=2; ${current_index}*100/${file_count}" | bc)
|
|
color_echo "$Green" "Progress -- Files: ${current_index}/${file_count} (${progress_percent}%)"
|
|
|
|
tmp_extension=".balance"
|
|
|
|
echo "Copying '${file_path}' to '${file_path}${tmp_extension}'..."
|
|
if [[ "${OSTYPE,,}" == "linux-gnu"* ]]; then
|
|
# Linux
|
|
|
|
# -a -- keep attributes
|
|
# -d -- keep symlinks (dont copy target)
|
|
# -x -- stay on one system
|
|
# -p -- preserve ACLs too
|
|
cp -adxp "${file_path}" "${file_path}${tmp_extension}"
|
|
elif [[ "${OSTYPE,,}" == "darwin"* ]]; then
|
|
# Mac OSX
|
|
|
|
# (should be the same as bsd, but untested!)
|
|
|
|
# -a -- keep attributes
|
|
# -d -- keep symlinks (dont copy target)
|
|
# -x -- stay on one system
|
|
# -p -- preserve ACLs too
|
|
cp -adxp "${file_path}" "${file_path}${tmp_extension}"
|
|
elif [[ "${OSTYPE,,}" == "freebsd"* ]]; then
|
|
# FreeBSD
|
|
|
|
# -a -- Archive mode. Same as -RpP.
|
|
# -x -- File system mount points are not traversed.
|
|
# -p -- Cause cp to preserve the following attributes of each source file
|
|
# in the copy: modification time, access time, file flags, file mode,
|
|
# ACL, user ID, and group ID, as allowed by permissions.
|
|
cp -axp "${file_path}" "${file_path}${tmp_extension}"
|
|
else
|
|
echo "Unsupported OS type: $OSTYPE"
|
|
exit 1
|
|
fi
|
|
|
|
echo "Removing original '${file_path}'..."
|
|
rm "${file_path}"
|
|
|
|
echo "Renaming temporary copy to original '${file_path}'..."
|
|
mv "${file_path}${tmp_extension}" "${file_path}"
|
|
}
|
|
|
|
root_path=$1
|
|
|
|
# count files
|
|
file_count=$(find "$root_path" -type f | wc -l)
|
|
echo "Files to rebalance: $file_count"
|
|
|
|
# recursively scan through files and execute "rebalance" procedure
|
|
find "$root_path" -type f -print0 | while IFS= read -r -d '' file; do rebalance "$file"; done
|
|
echo ""
|
|
echo ""
|
|
color_echo "$Green" "Done!"
|