#!/bin/bash # Copyright © 2016-2017 Simon McVittie # Copyright © 2017-2019 Collabora Ltd. # # SPDX-License-Identifier: MIT # # Permission is hereby granted, free of charge, to any person obtaining # a copy of this software and associated documentation files (the # "Software"), to deal in the Software without restriction, including # without limitation the rights to use, copy, modify, merge, publish, # distribute, sublicense, and/or sell copies of the Software, and to # permit persons to whom the Software is furnished to do so, subject to # the following conditions: # # The above copyright notice and this permission notice shall be included # in all copies or substantial portions of the Software. # # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, # EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF # MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. # IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY # CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, # TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE # SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. set -e set -u set -o pipefail me="$(basename "$0")" if [ "$#" != 1 ] || [ "$1" = '--help' ] || [ "x$(id -u)" != x0 ] || ! [ -d "$1" ]; then echo "$me: Usage:" >&2 echo " $me SYSROOT" >&2 echo "" >&2 echo "Run this script as root." >&2 exit 2 fi sysroot="$1" cd "$sysroot" in_chroot () { chroot "$sysroot" "$@" } # shellcheck disable=SC2016 in_chroot find / -xdev '(' \ -lname '/etc/alternatives/*' -o \ -lname '/etc/locale.alias' \ ')' -exec sh -euc ' while [ $# -gt 0 ]; do old="$(readlink "$1")" if target="$(readlink -f "$1")"; then rel_target="$target" # /usr/bin/more rel_link="$1" # /usr/bin/pager target_top="${rel_target#/}" # usr/bin/more target_top="${target_top%%/*}" # usr link_top="${rel_link#/}" # usr/bin/pager link_top="${link_top%%/*}" # usr if [ "$target_top" = "$link_top" ]; then # While the part up to the first / is equal, remove it while [ "${rel_target%%/*}" = "${rel_link%%/*}" ]; do rel_target="${rel_target#*/}" rel_link="${rel_link#*/}" done # If the link has directories, add enough ../ to escape while [ "${rel_link#*/}" != "${rel_link}" ]; do rel_link="${rel_link#*/}" rel_target="../${rel_target}" done fi echo "Making $1 a symlink to $rel_target (was $old -> ... -> $target)" ln -fns "$rel_target" "$1" fi shift done ' \ 'sh' \ '{}' '+' # In the above, 'sh' before '{}' is argv[0] # vim:set sw=4 sts=4 et: