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/sse2
  26         /usr/lib
  27         /lib
  28 )
  29
  30 main() {
  31         local dry_run="false"
  32
  33         while [ $# -gt 0 ]; do
  34                 case "${1}" in
  35                         --dry-run)
  36                                 dry_run="true"
  37                                 ;;
  38
  39                         *)
  40                                 echo "${0}: Invalid argument: ${1}" >&2
  41                                 return 2
  42                                 ;;
  43                 esac
  44                 shift
  45         done
  46
  47         # Update the runtime linker cache (this may fix any broken symlinks)
  48         ldconfig
  49
  50         local path
  51         for path in ${PATHS[@]}; do
  52                 echo "Searching in ${path}..."
  53
  54                 # Find all files called libsomething.so.N
  55                 local lib
  56                 for lib in $(find "${path}" -maxdepth 1 -type l -name "lib*.so.*" | sort); do
  57                         # Read the name of the linked library
  58                         local link="$(readlink -m "${lib}")"
  59
  60                         # We have two versioning schemas that we need to distinguish...
  61                         local files=()
  62                         case "${link}" in
  63                                 # Libraries called libsomething-N.so
  64                                 */lib*-*.so)
  65                                         files+=( ${link%-*}-* )
  66                                         ;;
  67
  68                                 # Libraries called libsomething.so.N.*
  69                                 *)
  70                                         files+=( ${lib}* )
  71                                         ;;
  72                         esac
  73
  74                         # Remove all files that have the same base name than
  75                         # the library we are looking at, apart from the symlink
  76                         # and the linked file itself.
  77                         local file
  78                         for file in ${files[@]}; do
  79                                 case "${file}" in
  80                                         # Ignore these files
  81                                         ${lib}|${link})
  82                                                 ;;
  83
  84                                         *)
  85                                                 echo "Removing ${file}..."
  86
  87                                                 # Actually remove the file (maybe)
  88                                                 if [ "${dry_run}" = "false" ]; then
  89                                                         unlink "${file}"
  90                                                 fi
  91                                                 ;;
  92                                 esac
  93                         done
  94                 done
  95         done
  96 }
  97
  98 main "$@" || exit $?