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46 lines
1.4 KiB
46 lines
1.4 KiB
#!/bin/bash
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TMP=/tmp/changes$$
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EXCLUDE="^\$|/\$|[.]wh[.][.]wh[.]orph/|^[.]wh[.][.]wh[.]plnk/|^[.]wh[.][.]wh[.]aufs|^var/cache/|^var/backups/|^var/tmp/|^var/log/|^var/lib/apt/|^var/lib/dhcp/|^var/lib/systemd/|^sbin/fsck[.]aufs|^etc/resolv[.]conf|^root/[.]Xauthority|^root/[.]xsession-errors|^root/[.]fehbg|^root/[.]fluxbox/lastwallpaper|^root/[.]fluxbox/menu_resolution|^etc/mtab|^etc/fstab|^boot/|^dev/|^mnt/|^proc/|^run/|^sys/|^tmp/"
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CHANGES=/run/initramfs/memory/changes
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if [ "$1" = "" ]; then
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echo ""
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echo "savechanges - save all changed files in a compressed filesystem bundle"
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echo " - excluding some predefined files such as /etc/mtab,"
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echo " temp & log files, empty directories, apt cache, and such"
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echo ""
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echo "Usage:"
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echo " $0 [ target_file.sb ] [ changes_directory ]"
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echo ""
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echo "If changes_directory is not specified, /run/initramfs/memory/changes is used."
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echo ""
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exit 1
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fi
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if [ ! "$2" = "" ]; then
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CHANGES="$2"
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fi
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# exclude the save_file itself of course
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EXCLUDE="$EXCLUDE|^""$(readlink -f "$1" | cut -b 2- | sed -r "s/[.]/[.]/")""\$"
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CWD=$(pwd)
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cd $CHANGES || exit
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mkdir -p $TMP
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mount -t tmpfs tmpfs $TMP
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find \( -type d -printf "%p/\n" , -not -type d -print \) \
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| sed -r "s/^[.]\\///" | egrep -v "$EXCLUDE" \
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| while read FILE; do
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cp --parents -afr "$FILE" "$TMP"
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done
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cd $CWD
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mksquashfs $TMP "$1" -comp xz -b 1024K -always-use-fragments -noappend
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umount $TMP
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rmdir $TMP
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