scrub/e2scrub_all.in

   1 #!/bin/bash
   2
   3 #  Copyright (C) 2018 Oracle.  All Rights Reserved.
   4 #
   5 #  Author: Darrick J. Wong <darrick.wong@oracle.com>
   6 #
   7 #  This program is free software; you can redistribute it and/or
   8 #  modify it under the terms of the GNU General Public License
   9 #  as published by the Free Software Foundation; either version 2
  10 #  of the License, or (at your option) any later version.
  11 #
  12 #  This program is distributed in the hope that it would be useful,
  13 #  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 #  GNU General Public License for more details.
  16 #
  17 #  You should have received a copy of the GNU General Public License
  18 #  along with this program; if not, write the Free Software Foundation,
  19 #  Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301, USA.
  20
  21 scrub_all=0
  22 conffile="@root_sysconfdir@/e2scrub.conf"
  23
  24 test -f "${conffile}" && . "${conffile}"
  25
  26 scrub_args=""
  27
  28 print_help() {
  29         echo "Usage: $0 [OPTIONS]"
  30         echo " -A: Scrub all ext[234] filesystems even if not mounted."
  31         echo " -r: Remove e2scrub snapshots."
  32         echo " -V: Print version information and exit."
  33 }
  34
  35 print_version() {
  36         echo "e2scrub_all @E2FSPROGS_VERSION@ (@E2FSPROGS_DATE@)"
  37 }
  38
  39 while getopts "ArV" opt; do
  40         case "${opt}" in
  41         "A") scrub_all=1;;
  42         "r") scrub_args="${scrub_args} -r";;
  43         "V") print_version; exit 0;;
  44         *) print_help; exit 2;;
  45         esac
  46 done
  47 shift "$((OPTIND - 1))"
  48
  49 # Find scrub targets, make sure we only do this once.
  50 ls_scrub_targets() {
  51         lsblk -o NAME,FSTYPE,MOUNTPOINT -p -P -n | while read vars; do
  52                 eval "${vars}"
  53
  54                 # Skip non-ext[234]
  55                 case "${FSTYPE}" in
  56                 ext[234])       ;;
  57                 *)              continue;;
  58                 esac
  59
  60                 # Skip unmounted filesystems unless -A
  61                 if [ "${scrub_all}" -eq 0 ] && [ -z "${MOUNTPOINT}" ]; then
  62                         continue;
  63                 fi
  64
  65                 # Skip non-lvm devices and lvm snapshots
  66                 lvm_vars="$(lvs --nameprefixes -o vg_name,lv_name,lv_role --noheadings "${NAME}" 2> /dev/null)"
  67                 test $? -ne 0 && continue
  68                 eval "${lvm_vars}"
  69                 echo "${LVM2_LV_ROLE}" | grep -q "snapshot" && continue
  70
  71                 if [ -n "${MOUNTPOINT}" ]; then
  72                         echo "${MOUNTPOINT}"
  73                 else
  74                         echo "${NAME}"
  75                 fi
  76         done | sort | uniq
  77 }
  78
  79 # Scrub any mounted fs on lvm by creating a snapshot and fscking that.
  80 stdin="$(realpath /dev/stdin)"
  81 ls_scrub_targets | while read tgt; do
  82         ${DBG} "@root_sbindir@/e2scrub" ${scrub_args} "${tgt}" < "${stdin}"
  83 done
  84
  85 exit 0