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 #   --sysconfdir=DIR           install zfs configuration files [PREFIX/etc]
  18 #
  19
  20 basedir="$(dirname $0)"
  21
  22 SCRIPT_COMMON=common.sh
  23 if [ -f "${basedir}/${SCRIPT_COMMON}" ]; then
  24 . "${basedir}/${SCRIPT_COMMON}"
  25 else
  26 echo "Missing helper script ${SCRIPT_COMMON}" && exit 1
  27 fi
  28
  29 PROG=zfs-helpers.sh
  30 DRYRUN=
  31 INSTALL=
  32 REMOVE=
  33 VERBOSE=
  34
  35 usage() {
  36 cat << EOF
  37 USAGE:
  38 $0 [dhirv]
  39
  40 DESCRIPTION:
  41         Install/remove the ZFS helper utilities.
  42
  43 OPTIONS:
  44         -d      Dry run
  45         -h      Show this message
  46         -i      Install the helper utilities
  47         -r      Remove the helper utilities
  48         -v      Verbose
  49
  50 $0 -iv
  51 $0 -r
  52
  53 EOF
  54 }
  55
  56 while getopts 'hdirv' OPTION; do
  57         case $OPTION in
  58         h)
  59                 usage
  60                 exit 1
  61                 ;;
  62         d)
  63                 DRYRUN=1
  64                 ;;
  65         i)
  66                 INSTALL=1
  67                 ;;
  68         r)
  69                 REMOVE=1
  70                 ;;
  71         v)
  72                 VERBOSE=1
  73                 ;;
  74         ?)
  75                 usage
  76                 exit
  77                 ;;
  78         esac
  79 done
  80
  81 if [ "${INSTALL}" -a "${REMOVE}" ]; then
  82         usage
  83         die "Specify -i or -r but not both"
  84 fi
  85
  86 if [ ! "${INSTALL}" -a ! "${REMOVE}" ]; then
  87         usage
  88         die "Either -i or -r must be specified"
  89 fi
  90
  91 if [ $(id -u) != 0 ]; then
  92         die "Must run as root"
  93 fi
  94
  95 if [ "$VERBOSE" ]; then
  96         echo "--- Configuration ---"
  97         echo "udevdir:          $udevdir"
  98         echo "udevruledir:      $udevruledir"
  99         echo "mounthelperdir:   $mounthelperdir"
 100         echo "sysconfdir:       $sysconfdir"
 101         echo "DRYRUN:           $DRYRUN"
 102         echo
 103 fi
 104
 105 install() {
 106         local src=$1
 107         local dst=$2
 108
 109         if [ -h $dst ]; then
 110                 echo "Symlink exists: $dst"
 111         elif [ -e $dst ]; then
 112                 echo "File exists: $dst"
 113         elif [ ! -e $src ]; then
 114                 echo "Source missing: $src"
 115         else
 116                 msg "ln -s $src $dst"
 117
 118                 if [ ! "$DRYRUN" ]; then
 119                         mkdir -p $(dirname $dst) &>/dev/null
 120                         ln -s $src $dst
 121                 fi
 122         fi
 123 }
 124
 125 remove() {
 126         local dst=$1
 127
 128         if [ -h $dst ]; then
 129                 msg "rm $dst"
 130                 rm $dst
 131                 rmdir $(dirname $dst) &>/dev/null
 132         fi
 133 }
 134
 135 if [ ${INSTALL} ]; then
 136         install $CMDDIR/mount_zfs/mount.zfs $mounthelperdir/mount.zfs
 137         install $CMDDIR/fsck_zfs/fsck.zfs $mounthelperdir/fsck.zfs
 138         install $CMDDIR/zvol_id/zvol_id $udevdir/zvol_id
 139         install $CMDDIR/vdev_id/vdev_id $udevdir/vdev_id
 140         install $UDEVRULEDIR/60-zvol.rules $udevruledir/60-zvol.rules
 141         install $UDEVRULEDIR/69-vdev.rules $udevruledir/69-vdev.rules
 142         install $UDEVRULEDIR/90-zfs.rules $udevruledir/90-zfs.rules
 143         install $CMDDIR/zpool/zpool.d $sysconfdir/zfs/zpool.d
 144 else
 145         remove $mounthelperdir/mount.zfs
 146         remove $mounthelperdir/fsck.zfs
 147         remove $udevdir/zvol_id
 148         remove $udevdir/vdev_id
 149         remove $udevruledir/60-zvol.rules
 150         remove $udevruledir/69-vdev.rules
 151         remove $udevruledir/90-zfs.rules
 152         remove $sysconfdir/zfs/zpool.d
 153 fi
 154
 155 exit 0