oolite-update.src

#
# Oolite Updater Script
# Dylan Smith, 2005-09-10
#
# Konstantinos Sykas
# 2009-09-22: rsync to alternative server
# 2009-10-13: x86_64 support
# 2010-04-23: 1) Improved x86_64 detection
#             2) Improved exit-message when no new Oolite version is available
# 2011-03-22: Removed TOPLEVEL environment variable. A small fix in the default.*.apspec file
#             made TOPLEVEL obsolete. OOLITE_ROOT is more than enough.
# 2011-03-26: Updated to support the new self-extractable package
# 2011-04-03: Updated to facilitate rsync repository setup for oolite-update script
# 2013-08-27: Updated new network name of terrastorage to terrastorage.dyndns.info
# 2013-11-13: Updated version comparison to use "build date" as per new version format (i.e. maj.min.rev.gitrev-builddate-githash)
# 2014-05-01: Updated new network name of terrastorage to terrastorage.no-ip.info
# 


RSYNC_SERVER_PRIMARY="terrastorage.no-ip.info"
RSYNC_SERVER_SECONDARY="rsync.alioth.net"
RSYNC_ERR=0
if [ `id -u` -eq 0 ] 
then
  USER_IS_ROOT=1
fi
OOLITE_ROOT=$(cd $(dirname $0); cd ..; pwd -P)
HOST_ARCH=`uname -m | sed -e s/amd64/x86_64/`
if [ "$HOST_ARCH" = "x86_64" ]; then
    OOLITE_RSYNC_FOLDER="oolite${TRUNK}-linux-64"
    STATUS_ARCH="_AMD64"
else
    OOLITE_RSYNC_FOLDER="oolite${TRUNK}-linux"
fi

# Check if rsync client is available
which rsync 2>/dev/null >/dev/null
if [ $? != 0 ]
then
   echo "No rsync, no Oolite${TRUNK} update!"
   echo "---------------------------"
   echo "Sorry, you don't seem to have rsync installed."
   echo "To install it, depending on your distro, run one of the following:"
   echo "Debian-style distros: apt-get install rsync"
   echo "Redhattish distros: up2date -i rsync"
   echo "Other RPM distros: yum install rsync"
   echo "Gentoo users should know what to do already"
   echo
   echo "Then run oolite${TRUNK}-update again."
   echo
   exit 1
fi

if [ $SELF_PACKAGER ]
then
  # Refuse automated update of a relocated installation
  if [ "${OOLITE_ROOT}" != "$HOME/${INSTALL_ROOT_USERHOME}/${OOLITE_ROOT_NAME}" ] &&  [ "${OOLITE_ROOT}" != "${INSTALL_ROOT_SYSTEMWIDE}/${OOLITE_ROOT_NAME}" ]
  then
    echo "Error: Oolite${TRUNK} installation has been relocated from its original path."
    exit 1
  fi

  # Check if we have the right privileges to proceed with update
  if [ "${OOLITE_ROOT}" = "${INSTALL_ROOT_SYSTEMWIDE}/${OOLITE_ROOT_NAME}" ] && [ ! ${USER_IS_ROOT} ]
  then
    echo "Error: Oolite${TRUNK} was installed by root, so you must be root to update it."
    exit 1
  fi
else   # Remove the "else" section if autopackager will be dismissed
  if [ "${OOLITE_ROOT}" = "/usr/lib/Oolite${TRUNK}" ]  && [ ! ${USER_IS_ROOT} ]
  then
    echo "Error: Oolite${TRUNK} was installed by root, so you must be root to update it."
    exit 1
  fi
fi


# Start update

cd ${OOLITE_ROOT}
CURRENTVER=`cat release.txt`
BUILDDATE=`echo ${CURRENTVER} | cut -d '-' -f 2`

# Backup release.txt
cp -p ${OOLITE_ROOT}/release.txt ${OOLITE_ROOT}/release.txt.backup

# Try rsync from primary server
echo Trying rsync://${RSYNC_SERVER_PRIMARY}/$OOLITE_RSYNC_FOLDER...
rsync -rlvz --progress rsync://${RSYNC_SERVER_PRIMARY}/$OOLITE_RSYNC_FOLDER/* . 2> /dev/null
RSYNC_ERR=$?
if [ ${RSYNC_ERR} != 0 ];
then
   # Try rsync from secondary server
   echo [${RSYNC_SERVER_PRIMARY} died and returned ${RSYNC_ERR}]
   echo
   echo Trying rsync://${RSYNC_SERVER_SECONDARY}/$OOLITE_RSYNC_FOLDER...
   rsync -rlvz --progress rsync://${RSYNC_SERVER_SECONDARY}/$OOLITE_RSYNC_FOLDER/* . 2> /dev/null
   RSYNC_ERR=$?
fi
if [ ${RSYNC_ERR} != 0 ]; then
   echo [${RSYNC_SERVER_SECONDARY} died and returned ${RSYNC_ERR}]
   echo
   echo "If the problem was caused by network or other transient issues, "
   echo "try running oolite${TRUNK}-update again."
   echo "Alternatively you may download the full package from "
   if [ ${TRUNK} ] 
   then
     echo "http://${RSYNC_SERVER_PRIMARY}/oolite/status${STATUS_ARCH}.html"
   else
     echo "http://www.oolite.org/download.shtml"
   fi
   echo

   # Restore release.txt and exit
   mv release.txt.backup release.txt
   exit 1
fi

# rsync was successful; release.txt.backup can be removed
rm -f release.txt.backup

# Inform the user about what happened during update
NEW_CURRENTVER=`cat release.txt`
NEW_BUILDDATE=`echo ${NEW_CURRENTVER} | cut -d '-' -f 2`
if [ ${NEW_BUILDDATE} -gt ${BUILDDATE} ]
then
   echo "Oolite${TRUNK} has been upgraded from ${CURRENTVER} to ${NEW_CURRENTVER}"
   exit 0
else
   if [ ${NEW_BUILDDATE} -lt ${BUILDDATE} ]   # TODO - Do not downgrade
   then
      echo "Oolite${TRUNK} has been downgraded from ${CURRENTVER} to ${NEW_CURRENTVER}"
      exit 0
   else
      echo "Your Oolite${TRUNK} installation is already up to date."
      echo "Any missing or altered Oolite${TRUNK} installation files have been restored."
      exit 0
   fi
fi