137 lines
4.1 KiB
Bash
Executable file
137 lines
4.1 KiB
Bash
Executable file
#!/bin/sh
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#
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# Remove old incremtal inc of all jails
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# Usage: rm
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#
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# shellcheck source=./includes
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LIBDIR="$(dirname $0)" && . "${LIBDIR}/includes"
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kill_or_clean_lockfile() {
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lock_file=${1:-}
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if [ -f "${lock_file}" ]; then
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# Get Process ID from the lock file
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pid=$(cat "${lock_file}")
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if [ -n "${pid}" ]; then
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if kill -0 ${pid} 2> /dev/null; then
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# Kill the children
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pkill -9 --parent "${pid}"
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# Kill the parent
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kill -9 "${pid}"
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warning "Process ${pid} has been killed. Only one ${0} can run in parallel, the latest wins."
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else
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warning "Process not found at PID \`${pid}'. Ignoring lock file \`${lock_file}'."
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fi
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else
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error "Empty lockfile \`${lock_file}'. It should contain a PID."
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fi
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# Remove the lock file
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rm -f ${lock_file}
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fi
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}
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incs_to_delete() {
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jail_name=${1:?}
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incs_policy_file=${2:?}
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incs_policy_keep_file=$(new_tmp_file "${jail_name}.incs_policy_keep")
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incs_list_file=$(new_tmp_file "${jail_name}.incs_list")
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# loop for each line in jail configuration
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for incs_policy_line in $(grep "^\+" ${incs_policy_file}); do
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# inc date in ISO format
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incs_policy_date=$(relative_date ${incs_policy_line})
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echo ${incs_policy_date} >> "${incs_policy_keep_file}"
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done
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for inc_name in $(incs_list "${jail_name}"); do
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echo "${inc_name}" >> ${incs_list_file}
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done
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# shellcheck disable=SC2046
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incs_to_delete=$(grep -v -f "${incs_policy_keep_file}" "${incs_list_file}")
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rm -f "${incs_policy_keep_file}" "${incs_list_file}"
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echo ${incs_to_delete}
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}
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delete_inc_btrfs() {
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jail_name=$1
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inc_name=$2
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inc_path=$(inc_path "${jail_name}" "${inc_name}")
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if dry_run; then
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echo "[dry-run] delete btrfs subvolume ${inc_path}"
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else
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/bin/btrfs subvolume delete "${inc_path}" | debug
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fi
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}
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delete_inc_ext4() {
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jail_name=$1
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inc_name=$2
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inc_path=$(inc_path "${jail_name}" "${inc_name}")
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if dry_run; then
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echo "[dry-run] delete ${inc_path} with rsync from empty directory"
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else
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empty=$(new_tmp_dir "empty")
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rsync --archive --delete "${empty}/" "${inc_path}/"
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rmdir "${inc_path}/"
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rmdir "${empty}"
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fi
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}
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lock_file="${LOCKDIR}/rm-global.lock"
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# shellcheck disable=SC2064
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trap "rm -f ${lock_file}; cleanup_tmp;" 0
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kill_or_clean_lockfile "${lock_file}"
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new_lock_file "${lock_file}"
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jails_list=$(jails_list)
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jails_total=$(echo $jails_list | wc -w)
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jails_count=0
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for jail_name in ${jails_list}; do
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jails_count=$((jails_count+1))
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incs_policy_file=$(current_jail_incs_policy_file ${jail_name})
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# If no incs policy is found, we don't remove incs
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if [ -n "${incs_policy_file}" ]; then
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# shellcheck disable=SC2046
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incs_to_delete=$(incs_to_delete "${jail_name}" "${incs_policy_file}")
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incs_total=$(echo ${incs_to_delete} | wc -w)
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incs_count=0
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if [ -n "${incs_to_delete}" ]; then
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debug "${jail_name}: incs to be deleted : $(echo "${incs_to_delete}" | tr '\n', ',' | sed 's/,$//')."
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for inc_name in ${incs_to_delete}; do
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incs_count=$((incs_count+1))
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info "rm progress: jail ${jails_count} out of ${jails_total} - inc ${incs_count} out of ${incs_total}"
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start=$(current_time)
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inc_path=$(inc_path "${jail_name}" "${inc_name}")
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if is_btrfs "${inc_path}"; then
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delete_inc_btrfs "${jail_name}" "${inc_name}"
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else
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delete_inc_ext4 "${jail_name}" "${inc_name}"
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fi
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end=$(current_time)
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notice "${jail_name}: inc \`${inc_name}' has been deleted [${start}/${end}]"
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done
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else
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notice "${jail_name}: no inc to be deleted."
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fi
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else
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notice "${jail_name}: skipping jail because incs policy is missing."
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fi
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done
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# Remove the lock file and cleanup tmp files
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rm -f "${lock_file}"
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cleanup_tmp
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