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         local dry_run="false"
  31
  32         while [ $# -gt 0 ]; do
  33                 case "${1}" in
  34                         --dry-run)
  35                                 dry_run="true"
  36                                 ;;
  37
  38                         *)
  39                                 echo "${0}: Invalid argument: ${1}" >&2
  40                                 return 2
  41                                 ;;
  42                 esac
  43                 shift
  44         done
  45
  46         # Update the runtime linker cache (this may fix any broken symlinks)
  47         ldconfig
  48
  49         local path
  50         for path in ${PATHS[@]}; do
  51                 echo "Searching in ${path}..."
  52
  53                 # Find all files called libsomething.so.N
  54                 local lib
  55                 for lib in $(find "${path}" -maxdepth 1 -type l -name "lib*.so.*" | sort); do
  56                         # Ignore some libraries
  57                         case "${lib}" in
  58                                 */libboost*)
  59                                         continue
  60                                         ;;
  61                         esac
  62
  63                         # Read the name of the linked library
  64                         local link="$(readlink -m "${lib}")"
  65
  66                         # We have two versioning schemas that we need to distinguish...
  67                         local files=()
  68                         case "${link}" in
  69                                 # Libraries called libsomething-N.so
  70                                 */lib*-*.so)
  71                                         files+=( ${link%-*}-* )
  72                                         ;;
  73
  74                                 # Libraries called libsomething.so.N.*
  75                                 *)
  76                                         files+=( ${lib}* )
  77                                         ;;
  78                         esac
  79
  80                         # Remove all files that have the same base name than
  81                         # the library we are looking at, apart from the symlink
  82                         # and the linked file itself.
  83                         local file
  84                         for file in ${files[@]}; do
  85                                 case "${file}" in
  86                                         # Ignore these files
  87                                         ${lib}|${link})
  88                                                 ;;
  89
  90                                         *)
  91                                                 echo "Removing ${file}..."
  92
  93                                                 # Actually remove the file (maybe)
  94                                                 if [ "${dry_run}" = "false" ]; then
  95                                                         unlink "${file}"
  96                                                 fi
  97                                                 ;;
  98                                 esac
  99                         done
 100                 done
 101         done
 102 }
 103
 104 main "$@" || exit $?