filesystem-cleanup: Automatically remove old libraries

This script runs through /usr/lib and /lib and tries to find
all libraries which are no longer being used and more and
deletes them.

This will help us to free space on root partitions that
are limited to 2GB.

However, the script does not cover 100% of the cases, so that
some files still need to be deleted manually (e.g. boost with
their weird versioning schema).

This script should be executed after a Core Update has been
installed.

Fixes: #12270
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
Reviewed-by: Peter Müller <peter.mueller@ipfire.org>
Signed-off-by: Arne Fitzenreiter <arne_f@ipfire.org>

diff --git a/config/rootfiles/common/aarch64/stage2 b/config/rootfiles/common/aarch64/stage2
index 366ab2bb0da6ec262aff356727b6871b254bdbc6..2d9a70f81dc75a0e2cd3c09c37bdb19c5018f4b1 100644 (file)
--- a/config/rootfiles/common/aarch64/stage2
+++ b/config/rootfiles/common/aarch64/stage2
@@ -92,6 +92,7 @@ usr/local/bin/backupiso
 usr/local/bin/connscheduler
 usr/local/bin/consort.sh
 usr/local/bin/convert-ovpn
+usr/local/bin/filesystem-cleanup
 usr/local/bin/hddshutdown
 usr/local/bin/ipsec-interfaces
 usr/local/bin/makegraphs

diff --git a/config/rootfiles/common/stage2 b/config/rootfiles/common/stage2
index d9068415bac480f890c9e15641a9d6d71ba2e822..b0680914efca37a7b2ab084065bbb742a5c14074 100644 (file)
--- a/config/rootfiles/common/stage2
+++ b/config/rootfiles/common/stage2
@@ -91,6 +91,7 @@ usr/local/bin/backupiso
 usr/local/bin/connscheduler
 usr/local/bin/consort.sh
 usr/local/bin/convert-ovpn
+usr/local/bin/filesystem-cleanup
 usr/local/bin/hddshutdown
 usr/local/bin/ipsec-interfaces
 usr/local/bin/makegraphs

diff --git a/config/rootfiles/common/x86_64/stage2 b/config/rootfiles/common/x86_64/stage2
index d90e3d70a68a690b22b6c0785db0c866f7213cf0..9d3334e69c3122e8c8fd8d29f1152dd6c5a79e08 100644 (file)
--- a/config/rootfiles/common/x86_64/stage2
+++ b/config/rootfiles/common/x86_64/stage2
@@ -93,6 +93,7 @@ usr/local/bin/backupiso
 usr/local/bin/connscheduler
 usr/local/bin/consort.sh
 usr/local/bin/convert-ovpn
+usr/local/bin/filesystem-cleanup
 usr/local/bin/hddshutdown
 usr/local/bin/ipsec-interfaces
 usr/local/bin/makegraphs

diff --git a/src/scripts/filesystem-cleanup b/src/scripts/filesystem-cleanup
new file mode 100644 (file)
index 0000000..d4cdfe8
--- /dev/null
+++ b/src/scripts/filesystem-cleanup
@@ -0,0 +1,76 @@
+#!/bin/bash
+############################################################################
+#                                                                          #
+# This file is part of the IPFire Firewall.                                #
+#                                                                          #
+# IPFire is free software; you can redistribute it and/or modify           #
+# it under the terms of the GNU General Public License as published by     #
+# the Free Software Foundation; either version 2 of the License, or        #
+# (at your option) any later version.                                      #
+#                                                                          #
+# IPFire is distributed in the hope that it will be useful,                #
+# but WITHOUT ANY WARRANTY; without even the implied warranty of           #
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the            #
+# GNU General Public License for more details.                             #
+#                                                                          #
+# You should have received a copy of the GNU General Public License        #
+# along with IPFire; if not, write to the Free Software                    #
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA #
+#                                                                          #
+# Copyright (C) 2020 IPFire Team <info@ipfire.org>.                        #
+#                                                                          #
+############################################################################
+
+PATHS=(
+       /usr/lib
+       /lib
+)
+
+main() {
+       # Update the runtime linker cache (this may fix any broken symlinks)
+       ldconfig
+
+       local path
+       for path in ${PATHS[@]}; do
+               echo "Searching in ${path}..."
+
+               # Find all files called libsomething.so.N
+               local lib
+               for lib in $(find "${path}" -maxdepth 1 -type l -name "lib*.so.*" | sort); do
+                       # Read the name of the linked library
+                       local link="$(readlink -m "${lib}")"
+
+                       # We have two versioning schemas that we need to distinguish...
+                       local files=()
+                       case "${link}" in
+                               # Libraries called libsomething-N.so
+                               */lib*-*.so)
+                                       files+=( ${link%-*}-* )
+                                       ;;
+
+                               # Libraries called libsomething.so.N.*
+                               *)
+                                       files+=( ${lib}* )
+                                       ;;
+                       esac
+
+                       # Remove all files that have the same base name than
+                       # the library we are looking at, apart from the symlink
+                       # and the linked file itself.
+                       local file
+                       for file in ${files[@]}; do
+                               case "${file}" in
+                                       # Ignore these files
+                                       ${lib}|${link})
+                                               ;;
+
+                                       *)
+                                               unlink "${file}"
+                                               ;;
+                               esac
+                       done
+               done
+       done
+}
+
+main "$@" || exit $?