#!/bin/bash
# Filename:      ${GRML_FAI_CONFIG}/hooks/instsoft.GRMLBASE
# Purpose:       Grml specific software installation in the chroot, executed after updatebase
# Authors:       grml-team (grml.org), (c) Michael Prokop <mika@grml.org>
# Bug-Reports:   see http://grml.org/bugs/
# License:       This file is licensed under the GPL v2 or any later version.
################################################################################

FILE_RC=false
if ifclass FILE_RC ; then
  FILE_RC=true
fi

set -u
set -e

# if hooks/updatebase.GRMLBASE fails for whatever reason
# and can't skip instsoft.GRMLBASE we have to make sure
# we exit here as well
if [ -n "$BUILD_ONLY" ] ; then
   "Exiting hooks/instsoft.GRMLBASE as BUILD_ONLY environment is set."
   exit 0
fi

if [ "$FAI_ACTION" = "softupdate" ] ; then
   echo "Action $FAI_ACTION of FAI (hooks/instsoft.GRMLBASE) via grml-live running"

   # /etc/resolv.conf is usually a symlink, pointing out of the chroot.
   # Make it a file with known contents.
   rm -f "${target}"/etc/resolv.conf
   cat /etc/resolv.conf >> "$target"/etc/resolv.conf

   if [ -r $target/etc/policy-rc.d.conf ] ; then
      sed -i "s/EXITSTATUS=.*/EXITSTATUS='101'/" $target/etc/policy-rc.d.conf
   fi

   # we definitely don't want to fail running fai sofupdate just
   # because of some well known bugs:
   [ -d $target/etc/apt/apt.conf.d ] || mkdir $target/etc/apt/apt.conf.d
   cat > $target/etc/apt/apt.conf.d/10apt-listbugs << EOF
// Check all packages whether they has critical bugs before they are installed.
// If you don't like it, comment it out.
//DPkg::Pre-Install-Pkgs {"/usr/sbin/apt-listbugs apt || exit 10"};
//DPkg::Tools::Options::/usr/sbin/apt-listbugs "";
//DPkg::Tools::Options::/usr/sbin/apt-listbugs::Version "2";
EOF

   # work around /etc/kernel/postinst.d/zz-update-grub failing
   # inside openvz environment, see #597084
   if ! $ROOTCMD dpkg-divert --list | grep -q '/usr/sbin/update-grub' ; then
     echo "Diverting update-grub executable"
     $ROOTCMD dpkg-divert --rename --add /usr/sbin/update-grub
     $ROOTCMD ln -s /bin/true /usr/sbin/update-grub
   fi

   # work around a bug which causes openvz to freeze when grub-probe is invoked
   if ! $ROOTCMD dpkg-divert --list | grep -q '/usr/sbin/grub-probe' ; then
     echo "Diverting grub-probe executable"
     $ROOTCMD dpkg-divert --rename --add /usr/sbin/grub-probe
     $ROOTCMD ln -s /bin/true /usr/sbin/grub-probe
   fi

   # Update package lists (so they exist at all), so we can install
   # software; if /var/lib/dpkg/available is empty, it was was probably
   # cleaned by GRMLBASE/98-clean-chroot, so we need to rebuild it
   # anyway
   $ROOTCMD /usr/lib/dpkg/methods/apt/update /var/lib/dpkg/ apt apt

  if $FILE_RC ; then
    echo "Installing file-rc as FILE_RC class is enabled."
    # newer aptitude versions won't remove essential packages using
    # 'aptitude -f -y install file-rc' anymore, therefore force it:
    $ROOTCMD aptitude -o Aptitude::ProblemResolver::Keep-All-Tier=60000 -f -y install file-rc systemd-sysv-
  fi

   if ! $ROOTCMD test -x /usr/bin/aptitude ; then
      $ROOTCMD apt-get -y install aptitude
   fi

   # make sure we can upgrade automatically,
   # even with unsigned repos, but only if user wants it
   if [ "${FAI_ALLOW_UNSIGNED:-}" = "1" ] ; then
     APTGET_OPTS="${APTGET_OPTS:-} --allow-unauthenticated"
     APTITUDE_OPTS="${APTITUDE_OPTS:-} --allow-untrusted"
   fi

   # make sure we don't fail when configuration files changed
   APTGET_OPTS="${APTGET_OPTS:-} -o DPkg::Options::=--force-confdef -o DPkg::Options::=--force-confmiss -o DPkg::Options::=--force-confnew"
   APTITUDE_OPTS="${APTITUDE_OPTS:-} -o DPkg::Options::=--force-confdef -o DPkg::Options::=--force-confmiss -o DPkg::Options::=--force-confnew"

   if $ROOTCMD test -x /usr/bin/aptitude ; then
      if $ROOTCMD aptitude --help | grep -q safe-upgrade ; then
         APT_LISTCHANGES_FRONTEND=none APT_LISTBUGS_FRONTEND=none $ROOTCMD aptitude -y $APTITUDE_OPTS safe-upgrade
      else
         APT_LISTCHANGES_FRONTEND=none APT_LISTBUGS_FRONTEND=none $ROOTCMD aptitude -y $APTITUDE_OPTS upgrade
      fi
   else
      APT_LISTCHANGES_FRONTEND=none APT_LISTBUGS_FRONTEND=none $ROOTCMD apt-get -y $APTGET_OPTS --force-yes upgrade
   fi

   exit # make sure we don't continue behind the following "fi"
fi

# no softupdate but fresh installation
echo "Action $FAI_ACTION of FAI (hooks/instsoft.GRMLBASE) via grml-live running"

# work around /etc/kernel/postinst.d/zz-update-grub failing
# inside openvz environment, see #597084
if ! $ROOTCMD dpkg-divert --list | grep -q '/usr/sbin/update-grub' ; then
  echo "Diverting update-grub executable"
  $ROOTCMD dpkg-divert --rename --add /usr/sbin/update-grub
  $ROOTCMD ln -s /bin/true /usr/sbin/update-grub
fi

# work around a bug which causes openvz to freeze when grub-probe is invoked
if ! $ROOTCMD dpkg-divert --list | grep -q '/usr/sbin/grub-probe' ; then
  echo "Diverting grub-probe executable"
  $ROOTCMD dpkg-divert --rename --add /usr/sbin/grub-probe
  $ROOTCMD ln -s /bin/true /usr/sbin/grub-probe
fi

# make sure we have file-rc available before package_config/GRML* is being executed {{{
# the apt-get update might return an error if there's for example
# a hashsum mismatch on Debian mirror sources, we might want to continue
# but should warn the user
if ! $ROOTCMD apt-get update ; then
   echo "Warning: there was an error executing apt-get update, continuing anyway."
   echo "Warning: there was an error executing apt-get update, continuing anyway." >&2
fi

if $FILE_RC ; then
  echo "Installing file-rc as FILE_RC class is enabled."
  # newer aptitude versions won't remove essential packages using
  # 'aptitude -f -y install file-rc' anymore, therefore force it via:
  $ROOTCMD aptitude -o Aptitude::ProblemResolver::Keep-All-Tier=60000 -f -y install file-rc systemd-sysv-
fi
# }}}

# we definitely don't want to fail running fai dirinstall just
# because of some well known bugs:
[ -d $target/etc/apt/apt.conf.d ] || mkdir $target/etc/apt/apt.conf.d
cat > $target/etc/apt/apt.conf.d/10apt-listbugs << EOF
// Check all packages whether they has critical bugs before they are installed.
// If you don't like it, comment it out.
//DPkg::Pre-Install-Pkgs {"/usr/sbin/apt-listbugs apt || exit 10"};
//DPkg::Tools::Options::/usr/sbin/apt-listbugs "";
//DPkg::Tools::Options::/usr/sbin/apt-listbugs::Version "2";
EOF

# make sure /dev/MAKEDEV is available:
if [ -x "$target"/sbin/MAKEDEV ] && ! [ -r "$target"/dev/MAKEDEV ] ; then
   ln -s /sbin/MAKEDEV "$target"/dev/MAKEDEV
fi

# we don't need the invoke-rc.d.d diversion (we have grml-policyrcd :)):
if [ -L "$target"/usr/sbin/invoke-rc.d ] ; then
   rm -f "$target"/usr/sbin/invoke-rc.d
   $ROOTCMD dpkg-divert --package fai --rename --remove /usr/sbin/invoke-rc.d
fi

## END OF FILE #################################################################
# vim:ft=sh expandtab ai tw=80 tabstop=4 shiftwidth=2