install native zfs on linux

install_zfs.sh

#!/usr/bin/env bash
set -e

# ---- may change frequently - start

version="0.6.0-rc8"

spl_tar_sha1=a3bba691e5b3b680f4cbeac70f7ea29367e6f337
zfs_tar_sha1=90597083069e17cc066fa435974bcdcabebad44d

# ---- may change frequently - end


spl_version_name="spl-$version"
zfs_version_name="zfs-$version"

spl_dir="$spl_version_name"
zfs_dir="$zfs_version_name"

usage() {
  echo "Usage: $0 build|install|check|uninstall [--dev] [--dracut]" >&2
  exit 1
}

has() {
  which $1 >/dev/null 2>&1
}

qgrep() {
  grep "${@}" >/dev/null 2>&1
}

download_file() {
  if has curl
  then
    curl -sL "${1}/${2}" | tee "${2}" | sha1sum | qgrep "${3}"
  elif has wget
  then
    wget -qO- "${1}/${2}" | tee "${2}" | sha1sum | qgrep "${3}" 
  else
    echo "Cannot download $1/$2, wget and curl missing." >&2
    exit 1
  fi
  tar xf "${2}"
}

download() {
  echo Downloading spl
  download_file http://github.com/downloads/zfsonlinux/spl $spl_version_name.tar.gz $spl_tar_sha1
  
  echo Downloading zfs
  download_file http://github.com/downloads/zfsonlinux/zfs $zfs_version_name.tar.gz $zfs_tar_sha1
}

build_dep_rpm() {
  sudo yum groupinstall -y "Development Tools" >"$log_file" 2>&1
  sudo yum install -y zlib-devel libuuid-devel libblkid-devel libselinux-devel parted lsscsi mdadm bc >>"$log_file" 2>&1
}

build_dep_deb() {
  sudo DEBIAN_FRONTEND=noninteractive apt-get install -y build-essential gawk alien fakeroot linux-headers-$(uname -r) zlib1g-dev uuid-dev libblkid-dev libselinux-dev parted lsscsi mdadm bc >>"$log_file" 2>&1
}

build_pkg() {
  pushd $1 >/dev/null
  echo Configuring $1
  ./configure >>"$log_file" 2>&1
  echo Building $1
  make $2 >>"$log_file" 2>&1
  popd >/dev/null
}

install_rpms() {
  echo Installing rpms ${@}
  sudo rpm -Uvh "${@}" >>"$log_file" 2>&1
}

uninstall_rpms() {
  echo Uninstalling rpms ${@}
  sudo rpm -e "${@}" >>"$log_file" 2>&1
}

install_debs() {
  echo Installing debs ${@}
  sudo DEBIAN_FRONTEND=noninteractive dpkg -i ${@} >>"$log_file" 2>&1
}

uninstall_debs() {
  echo Uninstalling debs ${@}
  sudo DEBIAN_FRONTEND=noninteractive dpkg -P ${@} >>"$log_file" 2>&1
}

build() {

  if has yum
  then
    build_dep_rpm
    build_pkg $spl_dir rpm
    cp $spl_dir/*.rpm "`dirname $log_file`"
    install_rpms $spl_dir/spl-modules-devel_*.rpm
    build_pkg $zfs_dir rpm
    cp $zfs_dir/*.rpm "`dirname $log_file`"
    uninstall_rpms spl-modules-devel
   
  elif has dpkg
  then
    build_dep_deb
    build_pkg $spl_dir deb
    cp $spl_dir/*.deb "`dirname $log_file`"
    install_debs $spl_dir/spl-modules-devel_*.deb
    build_pkg $zfs_dir deb
    cp $zfs_dir/*.deb "`dirname $log_file`"
    uninstall_debs spl-modules-devel

  else
    echo "I dont know how to build zfs on this platform." >&2
    exit 1
  fi 

  popd >/dev/null
}

zfs_installed() {
  has zpool
}

install() {
  if zfs_installed
  then
    echo "error: zfs already installed" >&2
    exit 1
  fi

  if has yum
  then
    install_rpms $zfs_dir/zfs_*.rpm $zfs_dir/zfs-modules_*.rpm $spl_dir/spl-modules_*.rpm $spl_dir/spl_*.rpm
    [ -n "$dracut" ] && install_rpms $zfs_dir/zfs-dracut_*.rpm

  elif has dpkg
  then
    install_debs $zfs_dir/zfs_*.deb $zfs_dir/zfs-modules_*.deb $spl_dir/spl-modules_*.deb $spl_dir/spl_*.deb
    [ -n "$dracut" ] && install_debs $zfs_dir/zfs-dracut_*.deb
  fi
}

uninstall_dev_pkgs() {
  if has yum
  then
    uninstall_rpms zfs-test zfs-devel zfs-modules-devel spl-devel 

  elif has dpkg
  then
    uninstall_debs zfs-test zfs-devel zfs-modules-devel spl-devel
  fi
}

check() {
  if has yum
  then
    install_rpms $spl_dir/*devel*.rpm $zfs_dir/*devel*.rpm $zfs_dir/zfs-test*.rpm
  elif has dpkg
  then
    install_debs $spl_dir/*devel*.deb $zfs_dir/*devel*.deb $zfs_dir/zfs-test*.rpm
  fi

  sudo /sbin/modprobe splat
  sudo /usr/sbin/splat -a
  sudo /sbin/rmmod splat

  [ -z "$dev" ] && uninstall_dev_pkgs
}

uninstall() {
  if ! zfs_installed
  then
    echo "zfs is not installed" >&2
    exit 1
  fi

  if ! zpool list 2>&1 | qgrep 'no pools available'
  then
    echo "cannot uninstall zfs when a pool is online." >&2
    exit 1
  fi

  /sbin/lsmod | qgrep zfs || sudo /sbin/rmmod zfs
  /sbin/lsmod | qgrep spl || sudo /sbin/rmmod spl

  uninstall_dev_pkgs

  if has yum
  then
    uninstall_rpms zfs zfs-modules spl-modules spl

  elif has dpkg
  then
    uninstall_debs zfs zfs-modules spl-modules spl
  fi
}

exit_handler() {
  cd
  \rm -rf /tmp/zfs-build-root*
  \rm -rf /tmp/spl-build-root*
  \rm -rf /tmp/zfsbuild.$$
  uninstall_dev_pkgs
  exit $1
}

while [ ${#} -gt 0 ]
do
  case "$1" in
  uninstall) uninstall || exit 1 ; exit 0 ;;
  download|build|install|check) command="$1" ;;
  --dev) dev=1 ;;
  --dracut) dracut=1 ;;
  *) usage ;;
  esac
  shift
done

test -z "$command" && usage

log_file="`pwd`/install_zfs.log"

test -e "$log_file" && rm -f "$log_file"

trap 'exit_handler $1 >/dev/null 2>&1' EXIT ERR QUIT TERM

mkdir /tmp/zfsbuild.$$
pushd /tmp/zfsbuild.$$ >/dev/null

download
build   ; [ x"$command" = x'build'   ] && exit 0 
install ; [ x"$command" = x'install' ] && exit 0 
check