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

annotate sbin/fzfs @ 283:1fc3b04b39fa

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Build and package manual pages for fzfs, fzfs-mount and fzfs-umount. Also put some stub info into the manual page for local-bsdtools.
author Franz Glasner <fzglas.hg@dom66.de>
date Sun, 18 Sep 2022 01:31:47 +0200
parents 3c24b07240f2
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