[24167] | 1 | #!/bin/sh |
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| 2 | # Copyright © 2005-2007 Roger Leigh <rleigh@debian.org> |
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| 3 | # |
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| 4 | # schroot is free software: you can redistribute it and/or modify it |
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| 5 | # under the terms of the GNU General Public License as published by |
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| 6 | # the Free Software Foundation, either version 3 of the License, or |
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| 7 | # (at your option) any later version. |
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| 8 | # |
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| 9 | # schroot is distributed in the hope that it will be useful, but |
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| 10 | # WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 11 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 12 | # General Public License for more details. |
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| 13 | # |
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| 14 | # You should have received a copy of the GNU General Public License |
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| 15 | # along with this program. If not, see |
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| 16 | # <http://www.gnu.org/licenses/>. |
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| 17 | # |
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| 18 | ##################################################################### |
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| 19 | |
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| 20 | set -e |
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| 21 | |
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| 22 | if [ -f "$CHROOT_SCRIPT_CONFIG" ]; then |
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| 23 | . "$CHROOT_SCRIPT_CONFIG" |
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| 24 | elif [ "$2" = "ok" ]; then |
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| 25 | echo "script-config file '$CHROOT_SCRIPT_CONFIG' does not exist" |
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| 26 | exit 1 |
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| 27 | fi |
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| 28 | |
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| 29 | if [ "$AUTH_VERBOSITY" = "verbose" ]; then |
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| 30 | VERBOSE="--verbose" |
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| 31 | fi |
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| 32 | |
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| 33 | # Copy a file if the source and destination differ |
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| 34 | # $1: source file |
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| 35 | # $2: destination file |
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| 36 | copy_file() |
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| 37 | { |
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[24314] | 38 | if [ -e "$1" ]; then |
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[24167] | 39 | |
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[24314] | 40 | COPY="true" |
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| 41 | |
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| 42 | if [ -e "$2" ]; then |
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| 43 | |
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[24167] | 44 | # Device and inode |
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| 45 | da=$(/usr/bin/stat --format="%d %i" "$1") |
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| 46 | db=$(/usr/bin/stat --format="%d %i" "$2") |
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| 47 | |
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[24314] | 48 | if [ "$da" = "$db" ]; then |
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| 49 | COPY="false" |
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| 50 | elif [ -L "$2" ]; then |
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| 51 | # Copy if destination is a symlink |
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| 52 | : |
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| 53 | elif [ -f "$1" ] && [ -f "$2" ]; then |
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| 54 | # Content |
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| 55 | ca=$(/usr/bin/md5sum "$1" | sed -e 's/\(^[0-9a-f][0-9a-f]*\).*$/\1/') |
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| 56 | cb=$(/usr/bin/md5sum "$2" | sed -e 's/\(^[0-9a-f][0-9a-f]*\).*$/\1/') |
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| 57 | # Copy only if file contents differ |
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| 58 | if [ "$ca" = "$cb" ]; then |
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| 59 | COPY="false" |
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[24167] | 60 | fi |
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| 61 | fi |
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[24314] | 62 | fi |
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[24167] | 63 | |
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[24314] | 64 | # Copy only if files are different |
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| 65 | if [ "$COPY" = "true" ]; then |
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| 66 | if [ -f "$1" ]; then |
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| 67 | cp --preserve=all $VERBOSE "$1" "$2" |
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| 68 | else |
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| 69 | # Copy non-regular file directly |
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| 70 | cp -a $VERBOSE "$1" "$2" |
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| 71 | fi |
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[24167] | 72 | fi |
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| 73 | |
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| 74 | else |
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| 75 | echo "Not copying nonexistent file: $file" |
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[24314] | 76 | exit 1 |
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[24167] | 77 | fi |
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| 78 | } |
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| 79 | |
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| 80 | if [ $1 = "setup-start" ] || [ $1 = "setup-recover" ]; then |
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| 81 | |
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| 82 | if [ -n "$COPYFILES" ]; then |
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| 83 | if [ -f "$COPYFILES" ]; then |
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| 84 | while read file; do |
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| 85 | if echo "$file" | grep -q '^/'; then |
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| 86 | copy_file "$file" "${CHROOT_PATH}$file" |
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| 87 | else |
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| 88 | echo "Not copying file with relative path: $file" |
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| 89 | fi |
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| 90 | done < "$COPYFILES" |
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| 91 | else |
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| 92 | echo "copyfiles file '$COPYFILES' does not exist" |
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| 93 | exit 1 |
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| 94 | fi |
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| 95 | fi |
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| 96 | |
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| 97 | fi |
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| 98 | |
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