scripts/zfs-helpers.sh

   1 #!/bin/bash
   2 #
   3 # This script is designed to facilitate in-tree development and testing
   4 # by installing symlinks on your system which refer to in-tree helper
   5 # utilities.  These helper utilities must be installed to in order to
   6 # exercise all ZFS functionality.  By using symbolic links and keeping
   7 # the scripts in-tree during development they can be easily modified
   8 # and those changes tracked.
   9 #
  10 # Use the following configuration option to override the installation
  11 # paths for these scripts.  The correct path is automatically set for
  12 # most distributions but you can optionally set it for your environment.
  13 #
  14 #   --with-mounthelperdir=DIR  install mount.zfs in dir [/sbin]
  15 #   --with-udevdir=DIR         install udev helpers [default=check]
  16 #   --with-udevruledir=DIR     install udev rules [default=UDEVDIR/rules.d]
  17 #
  18
  19 basedir="$(dirname $0)"
  20
  21 SCRIPT_COMMON=common.sh
  22 if [ -f "${basedir}/${SCRIPT_COMMON}" ]; then
  23 . "${basedir}/${SCRIPT_COMMON}"
  24 else
  25 echo "Missing helper script ${SCRIPT_COMMON}" && exit 1
  26 fi
  27
  28 PROG=zfs-helpers.sh
  29 DRYRUN=
  30 INSTALL=
  31 REMOVE=
  32 VERBOSE=
  33
  34 usage() {
  35 cat << EOF
  36 USAGE:
  37 $0 [dhirv]
  38
  39 DESCRIPTION:
  40         Install/remove the ZFS helper utilities.
  41
  42 OPTIONS:
  43         -d      Dry run
  44         -h      Show this message
  45         -i      Install the helper utilities
  46         -r      Remove the helper utilities
  47         -v      Verbose
  48
  49 $0 -iv
  50 $0 -r
  51
  52 EOF
  53 }
  54
  55 while getopts 'hdirv' OPTION; do
  56         case $OPTION in
  57         h)
  58                 usage
  59                 exit 1
  60                 ;;
  61         d)
  62                 DRYRUN=1
  63                 ;;
  64         i)
  65                 INSTALL=1
  66                 ;;
  67         r)
  68                 REMOVE=1
  69                 ;;
  70         v)
  71                 VERBOSE=1
  72                 ;;
  73         ?)
  74                 usage
  75                 exit
  76                 ;;
  77         esac
  78 done
  79
  80 if [ "${INSTALL}" -a "${REMOVE}" ]; then
  81         usage
  82         die "Specify -i or -r but not both"
  83 fi
  84
  85 if [ ! "${INSTALL}" -a ! "${REMOVE}" ]; then
  86         usage
  87         die "Either -i or -r must be specified"
  88 fi
  89
  90 if [ $(id -u) != 0 ]; then
  91         die "Must run as root"
  92 fi
  93
  94 if [ "$VERBOSE" ]; then
  95         echo "--- Configuration ---"
  96         echo "udevdir:          $udevdir"
  97         echo "udevruledir:      $udevruledir"
  98         echo "mounthelperdir:   $mounthelperdir"
  99         echo "DRYRUN:           $DRYRUN"
 100         echo
 101 fi
 102
 103 install() {
 104         local src=$1
 105         local dst=$2
 106
 107         if [ -h $dst ]; then
 108                 echo "Symlink exists: $dst"
 109         elif [ -e $dst ]; then
 110                 echo "File exists: $dst"
 111         elif [ ! -e $src ]; then
 112                 echo "Source missing: $src"
 113         else
 114                 msg "ln -s $src $dst"
 115
 116                 if [ ! "$DRYRUN" ]; then
 117                         ln -s $src $dst
 118                 fi
 119         fi
 120 }
 121
 122 remove() {
 123         local dst=$1
 124
 125         if [ -h $dst ]; then
 126                 msg "rm $dst"
 127                 rm $dst
 128         fi
 129 }
 130
 131 if [ ${INSTALL} ]; then
 132         install $CMDDIR/mount_zfs/mount.zfs $mounthelperdir/mount.zfs
 133         install $CMDDIR/fsck_zfs/fsck.zfs $mounthelperdir/fsck.zfs
 134         install $CMDDIR/zvol_id/zvol_id $udevdir/zvol_id
 135         install $CMDDIR/vdev_id/vdev_id $udevdir/vdev_id
 136         install $UDEVRULEDIR/60-zvol.rules $udevruledir/60-zvol.rules
 137         install $UDEVRULEDIR/69-vdev.rules $udevruledir/69-vdev.rules
 138         install $UDEVRULEDIR/90-zfs.rules $udevruledir/90-zfs.rules
 139 else
 140         remove $mounthelperdir/mount.zfs
 141         remove $mounthelperdir/fsck.zfs
 142         remove $udevdir/zvol_id
 143         remove $udevdir/vdev_id
 144         remove $udevruledir/60-zvol.rules
 145         remove $udevruledir/69-vdev.rules
 146         remove $udevruledir/90-zfs.rules
 147 fi
 148
 149 exit 0