source: pkg/main/gdm/trunk/debian/gdm.postinst @ 3082

#!/bin/sh

set -e

. /usr/share/debconf/confmodule

THIS_PACKAGE=gdm
DEFAULT_DISPLAY_MANAGER_FILE=/etc/X11/default-display-manager

# creating gdm group if he isn't already there
if ! getent group gdm >/dev/null; then
        addgroup --system gdm
fi

# creating gdm user if he isn't already there
if ! getent passwd gdm >/dev/null; then
        adduser --system --ingroup gdm --home /var/lib/gdm gdm
        usermod -c "Gnome Display Manager" gdm
        usermod -d "/var/lib/gdm"          gdm
        usermod -g "gdm"                   gdm
        usermod -s "/bin/false"            gdm
fi

if [ -d /var/lib/gdm ]; then
  chown -R gdm:gdm /var/lib/gdm
  chmod 0750 /var/lib/gdm
fi

# debconf is not a registry, so we only fiddle with the default file if it
# does not exist
if [ ! -e $DEFAULT_DISPLAY_MANAGER_FILE ]; then
  if db_get shared/default-x-display-manager; then
    # workaround debconf passthru bug (#379198)
    if [ -z "$RET" ]; then
      $RET="$THIS_PACKAGE"
    fi
    if [ "$THIS_PACKAGE" != "$RET" ]; then
      echo "Please be sure to run \"dpkg --configure $RET\"."
    fi
    if db_get "$RET"/daemon_name; then
      echo "$RET" > $DEFAULT_DISPLAY_MANAGER_FILE
    fi
  fi
fi
# debconf hangs if gdm gets started below without this
db_stop || true

# update-rc.d levels
S=30
K=01

if [ "$1" = "configure" ] && dpkg --compare-versions "$2" lt "2.16.1-1"; then
    # since 2.16.1-1, gdm isn't started from S99 anymore
    if [ -e /etc/rc2.d/S99gdm ]; then
        update-rc.d -f gdm remove >/dev/null
        update-rc.d gdm defaults $S $K
    fi
elif [ "$1" = "configure" ] && dpkg --compare-versions "$2" le "2.16.4-1.1"; then
    # since after 2.16.4-1.1, gdm isn't started from S21 anymore
    if [ -e /etc/rc2.d/S21gdm ]; then
        update-rc.d -f gdm remove >/dev/null
        update-rc.d gdm defaults $S $K
    fi
fi

if [ "$1" = "configure" ] && [ -n "$2" ] && dpkg --compare-versions "$2" lt "2.20"; then
    # D'uh, that's an ugly hack, but upstream changed the syntax
    # of the quoting
    if grep -q '\\"' /etc/gdm/gdm.conf; then
        echo "WARNING: fixing quotes in /etc/gdm/gdm.conf"
        cp -p /etc/gdm/gdm.conf /etc/gdm/gdm.conf.dpkg-old
        sed -i 's/\\"/"/g' /etc/gdm/gdm.conf
    fi
fi

if [ -x /etc/init.d/gdm ]; then
  update-rc.d gdm defaults $S $K >/dev/null 2>&1
  invoke-rc.d gdm reload || true
fi

#DEBHELPER#

exit 0