zfs-inplace-rebalancing-sqlite/zfs-inplace-rebalancing.sh
2020-07-28 16:23:07 +02:00

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#!/usr/bin/env bash
# exit script on error
set -e
# exit on undeclared variable
set -u
function rebalance () {
file_path=$1
tmp_extension=".balance"
echo "${file_path}"
echo "Copying '${file_path}' to '${file_path}${tmp_extension}'..."
# -a -- keep attributes
# -d -- keep symlinks (dont copy target)
# -x -- stay on one system
# -p -- preserve ACLs too
cp -adxp "${file_path}" "${file_path}${tmp_extension}"
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=$1
# recursively scan through files and execute "rebalance" procedure
find "$root_path" -type f -print0 | while IFS= read -r -d '' file; do rebalance "$file"; done
echo ""
echo ""
echo "Done!"