src/scripts/filesystem-cleanup

   1 #!/bin/bash
   2 ############################################################################
   3 #                                                                          #
   4 # This file is part of the IPFire Firewall.                                #
   5 #                                                                          #
   6 # IPFire is free software; you can redistribute it and/or modify           #
   7 # it under the terms of the GNU General Public License as published by     #
   8 # the Free Software Foundation; either version 2 of the License, or        #
   9 # (at your option) any later version.                                      #
  10 #                                                                          #
  11 # IPFire is distributed in the hope that it will be useful,                #
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of           #
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the            #
  14 # GNU General Public License for more details.                             #
  15 #                                                                          #
  16 # You should have received a copy of the GNU General Public License        #
  17 # along with IPFire; if not, write to the Free Software                    #
  18 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA #
  19 #                                                                          #
  20 # Copyright (C) 2020 IPFire Team <info@ipfire.org>.                        #
  21 #                                                                          #
  22 ############################################################################
  23
  24 PATHS=(
  25         /usr/lib
  26         /lib
  27 )
  28
  29 main() {
  30         # Update the runtime linker cache (this may fix any broken symlinks)
  31         ldconfig
  32
  33         local path
  34         for path in ${PATHS[@]}; do
  35                 echo "Searching in ${path}..."
  36
  37                 # Find all files called libsomething.so.N
  38                 local lib
  39                 for lib in $(find "${path}" -maxdepth 1 -type l -name "lib*.so.*" | sort); do
  40                         # Read the name of the linked library
  41                         local link="$(readlink -m "${lib}")"
  42
  43                         # We have two versioning schemas that we need to distinguish...
  44                         local files=()
  45                         case "${link}" in
  46                                 # Libraries called libsomething-N.so
  47                                 */lib*-*.so)
  48                                         files+=( ${link%-*}-* )
  49                                         ;;
  50
  51                                 # Libraries called libsomething.so.N.*
  52                                 *)
  53                                         files+=( ${lib}* )
  54                                         ;;
  55                         esac
  56
  57                         # Remove all files that have the same base name than
  58                         # the library we are looking at, apart from the symlink
  59                         # and the linked file itself.
  60                         local file
  61                         for file in ${files[@]}; do
  62                                 case "${file}" in
  63                                         # Ignore these files
  64                                         ${lib}|${link})
  65                                                 ;;
  66
  67                                         *)
  68                                                 unlink "${file}"
  69                                                 ;;
  70                                 esac
  71                         done
  72                 done
  73         done
  74 }
  75
  76 main "$@" || exit $?