distrib/MacOS/installer-scripts/Uninstaller

   1 #!/bin/sh
   2
   3 # Uninstaller script for GHC.framework
   4 # (currently only for system volume installations)
   5
   6 INSTALL_DEST=/Library/Frameworks
   7 INSTALL_BASE=/
   8 if [ ${INSTALL_BASE} = / ]; then
   9   INSTALL_BIN=/usr/bin
  10 else
  11   INSTALL_BIN=${INSTALL_BASE}/bin
  12 fi
  13
  14 if [ ! -x ${INSTALL_DEST}/GHC.framework ]; then
  15   echo "${INSTALL_DEST}/GHC.framework does not exit"
  16   exit 1
  17 fi
  18
  19 if [ ${USER} != root ]; then
  20   echo "GHC.framework installer must be run with admin privileges"
  21   echo "Prefix command by 'sudo'"
  22   exit 1
  23 fi
  24
  25 VERSIONS=(`ls ${INSTALL_DEST}/GHC.framework/Versions`)
  26 NO_VERSIONS=${#VERSIONS[@]}
  27
  28 if [ ${VERSIONS[${NO_VERSIONS}-1]} != Current ]; then
  29   echo "Fatal error: last version should be Current"
  30   echo "Found versions: ${VERSIONS[@]}"
  31   exit 1
  32 fi
  33 CURRENT_PHYS=`cd /Library/Frameworks/GHC.framework/Versions/Current; pwd -P`
  34 CURRENT=`basename ${CURRENT_PHYS}`
  35
  36 if [ ${NO_VERSIONS} -ne 2 ]; then
  37   echo "Multiple versions of GHC.framework are currently installed."
  38   echo "This uninstaller removes GHC.framework entirely and should only"
  39   echo "be used if there is exactly one version."
  40   echo
  41   echo "To remove individual old versions, simply delete the directory"
  42   echo "${INSTALL_DEST}/GHC.framework/Versions/VERSION_TO_REMOVE"
  43   echo
  44   echo "Found versions: ${VERSIONS[@]}(= ${CURRENT})"
  45   exit 1
  46 fi
  47
  48 echo "Removing symbolic links into GHC.framework"
  49 for thisfile in `ls ${INSTALL_BIN}`; do
  50   if ls -l ${INSTALL_BIN}/${thisfile} | grep -q GHC.framework/Versions; then
  51     rm -f ${INSTALL_BIN}/${thisfile}
  52   fi
  53 done
  54
  55 echo "Removing ${INSTALL_DEST}/GHC.framework"
  56 rm -rf ${INSTALL_DEST}/GHC.framework
  57
  58 echo "Removing package recipt"
  59 rm -f /Library/Receipts/boms/org.haskell.glasgowHaskellCompiler.ghc.pkg.bom
  60
  61 echo "${INSTALL_DEST}/GHC.framework has been purged!"