zfs/scripts/zfs-helpers.sh

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#!/bin/bash
#
# This script is designed to facilitate in-tree development and testing
# by installing symlinks on your system which refer to in-tree helper
# utilities. These helper utilities must be installed to in order to
# exercise all ZFS functionality. By using symbolic links and keeping
# the scripts in-tree during development they can be easily modified
# and those changes tracked.
#
# Use the following configuration option to override the installation
# paths for these scripts. The correct path is automatically set for
# most distributions but you can optionally set it for your environment.
#
# --with-mounthelperdir=DIR install mount.zfs in dir [/sbin]
# --with-udevdir=DIR install udev helpers [default=check]
# --with-udevruledir=DIR install udev rules [default=UDEVDIR/rules.d]
# --sysconfdir=DIR install zfs configuration files [PREFIX/etc]
#
basedir="$(dirname $0)"
SCRIPT_COMMON=common.sh
if [ -f "${basedir}/${SCRIPT_COMMON}" ]; then
. "${basedir}/${SCRIPT_COMMON}"
else
echo "Missing helper script ${SCRIPT_COMMON}" && exit 1
fi
PROG=zfs-helpers.sh
DRYRUN=
INSTALL=
REMOVE=
VERBOSE=
usage() {
cat << EOF
USAGE:
$0 [dhirv]
DESCRIPTION:
Install/remove the ZFS helper utilities.
OPTIONS:
-d Dry run
-h Show this message
-i Install the helper utilities
-r Remove the helper utilities
-v Verbose
$0 -iv
$0 -r
EOF
}
while getopts 'hdirv' OPTION; do
case $OPTION in
h)
usage
exit 1
;;
d)
DRYRUN=1
;;
i)
INSTALL=1
;;
r)
REMOVE=1
;;
v)
VERBOSE=1
;;
?)
usage
exit
;;
esac
done
if [ "${INSTALL}" -a "${REMOVE}" ]; then
usage
die "Specify -i or -r but not both"
fi
if [ ! "${INSTALL}" -a ! "${REMOVE}" ]; then
usage
die "Either -i or -r must be specified"
fi
if [ $(id -u) != 0 ]; then
die "Must run as root"
fi
if [ "$VERBOSE" ]; then
echo "--- Configuration ---"
echo "udevdir: $udevdir"
echo "udevruledir: $udevruledir"
echo "mounthelperdir: $mounthelperdir"
echo "sysconfdir: $sysconfdir"
echo "DRYRUN: $DRYRUN"
echo
fi
install() {
local src=$1
local dst=$2
if [ -h $dst ]; then
echo "Symlink exists: $dst"
elif [ -e $dst ]; then
echo "File exists: $dst"
elif [ ! -e $src ]; then
echo "Source missing: $src"
else
msg "ln -s $src $dst"
if [ ! "$DRYRUN" ]; then
mkdir -p $(dirname $dst) &>/dev/null
ln -s $src $dst
fi
fi
}
remove() {
local dst=$1
if [ -h $dst ]; then
msg "rm $dst"
rm $dst
rmdir $(dirname $dst) &>/dev/null
fi
}
if [ ${INSTALL} ]; then
install $CMDDIR/mount_zfs/mount.zfs $mounthelperdir/mount.zfs
install $CMDDIR/fsck_zfs/fsck.zfs $mounthelperdir/fsck.zfs
install $CMDDIR/zvol_id/zvol_id $udevdir/zvol_id
install $CMDDIR/vdev_id/vdev_id $udevdir/vdev_id
install $UDEVRULEDIR/60-zvol.rules $udevruledir/60-zvol.rules
install $UDEVRULEDIR/69-vdev.rules $udevruledir/69-vdev.rules
install $UDEVRULEDIR/90-zfs.rules $udevruledir/90-zfs.rules
install $CMDDIR/zpool/zpool.d $sysconfdir/zfs/zpool.d
else
remove $mounthelperdir/mount.zfs
remove $mounthelperdir/fsck.zfs
remove $udevdir/zvol_id
remove $udevdir/vdev_id
remove $udevruledir/60-zvol.rules
remove $udevruledir/69-vdev.rules
remove $udevruledir/90-zfs.rules
remove $sysconfdir/zfs/zpool.d
fi
exit 0