Mercurial > hgrepos > FreeBSD > ports > sysutils > local-bsdtools

annotate sbin/fzfs @ 286:258a1dfd52eb

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Separate manual page documentation and "normal" HTML documentation. No "orphaned" source files should be there now. Also the HTML theme for the is changed from "alabaster" to "agogo".
author Franz Glasner <fzglas.hg@dom66.de>
date Sun, 18 Sep 2022 10:25:55 +0200
parents 1fc3b04b39fa
children 6be930eb7490
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1 #!/bin/sh
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2 # -*- indent-tabs-mode: nil; -*-
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3 #:
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4 #: A ZFS management helper tool.
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5 #:
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6 #: :Author: Franz Glasner
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7 #: :Copyright: (c) 2022 Franz Glasner.
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8 #: All rights reserved.
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9 #: :License: BSD 3-Clause "New" or "Revised" License.
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10 #: See LICENSE for details.
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11 #: If you cannot find LICENSE see
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12 #: <https://opensource.org/licenses/BSD-3-Clause>
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13 #: :ID: @(#)@@PKGORIGIN@@ $HGid$
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14 #:
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15
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16 set -eu
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17
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18 VERSION="@@VERSION@@"
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19
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20 USAGE='
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21 USAGE: fzfs [ OPTIONS ] COMMAND [ COMMAND OPTIONS ] [ ARG ... ]
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22
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23 OPTIONS:
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24
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25 -V Print the program name and version number to stdout and exit
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26
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27 -h Print this help message to stdout and exit
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28
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29 COMMANDS:
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30
283
1fc3b04b39fa Build and package manual pages for fzfs, fzfs-mount and fzfs-umount.
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31 mount [-O] [-N] [-P] [-u] [-n] DATASET [MOUNTPOINT]
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32
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33 umount DATASET
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34
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35 unmount
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36
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37 '
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38
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39 #
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40 #: Implementation of the "mount" command.
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41 #:
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42 #: Mount a dataset and recursively all its children datasets.
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43 #:
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44 command_mount() {
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45 local _dsname _mountpoint
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46 local _opt_dry_run _opt_mount_outside _opt_mount_natural
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47 local _opt_mount_children_only
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48
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49 local _name _mp _canmount _mounted _rootds_mountpoint _relative_mp _real_mp
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50
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51 _opt_dry_run=""
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52 _opt_mount_outside=""
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53 _opt_mount_natural=""
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54 _opt_mount_children_only=""
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55 while getopts "ONPnu" _opt ; do
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56 case ${_opt} in
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57 O)
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58 _opt_mount_outside="yes"
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59 ;;
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60 N)
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61 _opt_mount_natural="yes"
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62 ;;
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63 P)
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64 _opt_mount_children_only="yes"
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65 ;;
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66 n|u)
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67 _opt_dry_run="yes"
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68 ;;
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69 \?|:)
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70 return 2;
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71 ;;
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72 esac
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73 done
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74 shift $((OPTIND-1))
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75 OPTIND=1
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76
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77 _dsname="${1-}"
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78 _mountpoint="${2-}"
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79
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80 if [ -z "${_dsname}" ]; then
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81 echo "ERROR: no dataset given" >&2
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82 return 2
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83 fi
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84
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85 _rootds_mountpoint="$(zfs list -H -o mountpoint -t filesystem "${_dsname}")" || \
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86 { echo "ERROR: root dataset does not exist" >&2; return 1; }
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87
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88 if [ -z "${_mountpoint}" ]; then
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89 if [ "${_opt_mount_natural}" = "yes" ]; then
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90 _mountpoint="${_rootds_mountpoint}"
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91 else
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92 echo "ERROR: no mountpoint given" >&2
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93 return 2
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94 fi
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95 else
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96 if [ "${_opt_mount_natural}" = "yes" ]; then
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97 echo "ERROR: Cannot have a custom mountpoint when \"-O\" is given" >&2
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98 return 2
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99 fi
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100 fi
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101
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102 # Eventually remove a trailing slash
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103 _mountpoint="${_mountpoint%/}"
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104 if [ -z "${_mountpoint}" ]; then
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105 echo "ERROR: would mount over the root filesystem" >&2
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106 return 1
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107 fi
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108
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109 zfs list -H -o name,mountpoint,canmount,mounted -s mountpoint -t filesystem -r "${_dsname}" \
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110 | {
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111 while IFS=$'\t' read -r _name _mp _canmount _mounted ; do
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112 # Skip filesystems that are already mounted
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113 [ "${_mounted}" = "yes" ] && continue
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114 # Skip filesystems that must not be mounted
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115 [ "${_canmount}" = "off" ] && continue
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116 #
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diff changeset
117 # Mount only the children and skip the given parent dataset
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diff changeset
118 # if required
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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diff changeset
119 #
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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diff changeset
120 [ \( "${_opt_mount_children_only}" = "yes" \) -a \( "${_name}" = "${_dsname}" \) ] && continue
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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parents:
diff changeset
121 case "${_mp}" in
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diff changeset
122 "none"|"legacy")
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diff changeset
123 # Do nothing for filesystem with unset or legacy mountpoints
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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diff changeset
124 ;;
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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diff changeset
125 "${_rootds_mountpoint}"|"${_rootds_mountpoint}/"*)
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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diff changeset
126 #
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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diff changeset
127 # Handle only mountpoints that have a mountpoint below
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128 # the parent datasets mountpoint
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129 #
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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diff changeset
130
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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diff changeset
131 # Determine the mountpoint relative to the parent mountpoint
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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132 _relative_mp="${_mp#${_rootds_mountpoint}}"
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133 # Eventually remove a trailing slash
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diff changeset
134 _relative_mp="${_relative_mp%/}"
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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diff changeset
135 # The real effective full mountpoint
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diff changeset
136 _real_mp="${_mountpoint}${_relative_mp}"
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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diff changeset
137
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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diff changeset
138 #
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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diff changeset
139 # Consistency and sanity check: computed real mountpoint must
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140 # be equal to the configured mountpoint when no custom mountpoint
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diff changeset
141 # is given.
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142 #
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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diff changeset
143 if [ "${_opt_mount_natural}" = "yes" ]; then
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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144 if [ "${_real_mp}" != "${_mp}" ]; then
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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145 echo "ERROR: mountpoint mismatch" >&2
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146 return 1
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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diff changeset
147 fi
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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diff changeset
148 fi
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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149
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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diff changeset
150 if [ "${_opt_dry_run}" = "yes" ]; then
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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151 echo "Would mount ${_name} on ${_real_mp}"
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152 else
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153 mkdir -p "${_real_mp}" 1> /dev/null 2> /dev/null || \
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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154 { echo "ERROR: cannot create mountpoint ${_real_mp}" >&2; return 1; }
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diff changeset
155 echo "Mounting ${_name} on ${_real_mp}"
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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156 mount -t zfs "${_name}" "${_real_mp}" || return 1
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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157 fi
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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158 ;;
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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diff changeset
159 *)
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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diff changeset
160 if [ "${_opt_mount_outside}" = "yes" ]; then
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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diff changeset
161 if [ "${_opt_dry_run}" = "yes" ]; then
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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162 echo "Would mount ${_name} on configured ZFS dataset mountpoint ${_mp}"
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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163 else
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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164 echo "Mounting ${_name} on configured ZFS dataset mountpoint ${_mp}"
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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165 zfs mount "${_name}" || return 1
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166 fi
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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167 else
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168 echo "Skipping ${_name} because its configured ZFS mountpoint is not relative to given root dataset" 2>&1
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169 fi
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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170 ;;
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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171 esac
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172 done
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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173
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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174 return 0
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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parents:
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175 }
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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parents:
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176 }
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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parents:
diff changeset
177
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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parents:
diff changeset
178
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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parents:
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179 #:
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180 #: Implement the "umount" command.
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181 #:
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182 #: Umount a datasets and recursively all its children datasets.
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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183 #:
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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diff changeset
184 command_umount() {
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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diff changeset
185 local _dsname
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diff changeset
186
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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diff changeset
187 local _name _mp _rest _rootds_mountpoint
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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parents:
diff changeset
188
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
189 _dsname="${1-}"
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
190 [ -z "${_dsname}" ] && { echo "ERROR: no dataset given" 1>&2; return 2; }
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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diff changeset
191
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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parents:
diff changeset
192 # Just determine whether the given dataset name exists
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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parents:
diff changeset
193 _rootds_mountpoint="$(zfs list -H -o mountpoint -t filesystem "${_dsname}")" || { echo "ERROR: dataset not found" 1>&2; return 1; }
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
194
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
195 mount -t zfs -p \
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
196 | grep -E "^${_dsname}(/|\s)" \
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
197 | sort -n -r \
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
198 | {
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
199 while IFS=' '$'\t' read -r _name _mp _rest ; do
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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parents:
diff changeset
200 echo "Umounting ${_name} on ${_mp}"
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
201 umount "${_mp}" || return 1
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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parents:
diff changeset
202 done
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
203 }
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
204 return 0
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
205 }
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
206
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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parents:
diff changeset
207 #
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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parents:
diff changeset
208 # Global option handling
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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parents:
diff changeset
209 #
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
210 while getopts "Vh" _opt ; do
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
211 case ${_opt} in
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
212 V)
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
213 printf 'ftjail v%s (rv:%s)\n' "${VERSION}" '@@HGREVISION@@'
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
214 exit 0
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
215 ;;
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
216 h)
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
217 echo "${USAGE}"
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
218 exit 0
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
219 ;;
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
220 \?)
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
221 exit 2;
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
222 ;;
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
223 *)
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
224 echo "ERROR: option handling failed" 1>&2
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
225 exit 2
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
226 ;;
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
227 esac
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
228 done
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
229 #
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
230 # Reset the Shell's option handling system to prepare for handling
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
231 # command-local options.
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
232 #
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
233 shift $((OPTIND-1))
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
Franz Glasner <fzglas.hg@dom66.de>
parents:
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234 OPTIND=1
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235
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236 test $# -gt 0 || { echo "ERROR: no command given" 1>&2; exit 2; }
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237
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238 command="$1"
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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239 shift
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240
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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241 case "${command}" in
3c24b07240f2 Move the implementation of "mount" and "umount" into the new tool fzfs.
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242 mount)
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243 command_mount "$@"
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244 ;;
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245 umount|unmount)
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246 command_umount "$@"
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247 ;;
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248 *)
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249 echo "ERROR: unknown command \`${command}'" 1>&2
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250 exit 2
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251 ;;
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252 esac