2024-02-24 08:01:41 -08:00
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#!/bin/bash
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mirror_rootfs () {
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2024-02-26 12:30:19 -08:00
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local boot; local dest; local rootfs; local opts
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2024-02-24 08:01:41 -08:00
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[[ ! $(command -v rsync) ]] && { echo rsync must be installed to use this function; return 5; }
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2024-02-26 12:30:19 -08:00
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opts=" --dry-run"
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[[ $1 == "--run" ]] && opts="" && shift
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[[ $1 == "-v" ]] && opts+=" -v" && shift
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[[ $1 == "-o" ]] && opts+=" $2" && shift
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2024-02-24 08:01:41 -08:00
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dest=$(realpath -s $1)
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2024-02-26 12:30:19 -08:00
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rootfs=$2
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2024-02-24 08:01:41 -08:00
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[ ! -d "$dest" ] && echo destination $dest is not a directory && return 3
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[ ! -d "$rootfs/etc" ] && echo not root filesystem at $rootfs && return 3
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2024-02-26 12:30:19 -08:00
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echo making mirror of root filesystem at ${rootfs:-/} to $dest/rootfs
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#TODO if destination is btrfs then make snapshot otherwise make directory
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sudo btrfs subvol create $dest/rootfs >/dev/null
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if sudo rsync -axHAWXS $opts --info=progress2 --numeric-ids --delete --delete-excluded --force --exclude-from="$(rootfs_excludes)" ${rootfs:-/} $dest/rootfs ; then
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echo root parition mirror was made to $dest/rootfs
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boot=$rootfs/boot
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[[ ! $(mountpoint $boot) ]] && boot=$rootfs/boot/efi
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[[ ! $(mountpoint $boot) ]] && echo neither $rootfs/boot nor $boot are mountpoints, no boot parition to mirror && return 2
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echo making mirror of boot $boot partition to $dest$boot
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sudo btrfs subvol create $dest$boot >/dev/null
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if sudo rsync -aHAWXS $opts --info=progress2 --numeric-ids --force --delete $boot/ $dest$boot; then
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echo boot partion is mirrored
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2024-02-24 08:01:41 -08:00
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else
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2024-02-26 12:30:19 -08:00
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echo unable to sync a copy of $boot, aborted backup
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2024-02-24 08:01:41 -08:00
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fi
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else
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echo unable to sync a copy of root file system, backkup failed
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fi
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}
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2024-02-26 12:30:19 -08:00
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rclone () {
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local boot; local dest; local src; local opts
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[[ ! $(command -v rsync) ]] && { echo rsync must be installed to use this function; return 5; }
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opts=" --dry-run"
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[[ $1 == "--run" ]] && opts="" && shift
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[[ $1 == "-v" ]] && opts+=" -v" && shift
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[[ $1 == "-o" ]] && opts+=" $2" && shift
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src=$(realpath $1)
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dest=$(realpath $2)
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mkdir -p $dest >/dev/null
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echo making clone/mirror of $src to $dest
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if [ "$(ls -A $dest)" ]; then
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echo WARNING: $dest is not empty but will be erased!, be sure before using --run
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# TODO RUN CONFIRM
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# if [[ $opt == *"--run"* ]]; then
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fi
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# if sudo rsync -axHAWXS $opts --info=progress2 --numeric-ids --delete --delete-excluded --force $src/ $dest/ ; then
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cmd="sudo rsync -axHAWXS $opts --info=progress2 --numeric-ids --delete --force $src/ $dest/"
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echo "$cmd"
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if $cmd ; then
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echo mirror/clone was successful
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else
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echo unable to make the clone
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fi
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}
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2024-02-24 08:01:41 -08:00
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rootfs_excludes () {
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local list; local delete
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[[ $1 == "-l" ]] && list=true && shift
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[[ $1 == "-r" ]] && delete=true && shift
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[[ "$1" == "-"* ]] && >&2 echo bad option, aborting && return 1
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rfse=${1:-/tmp/rootfs_excludes.lst}
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2024-02-26 12:30:19 -08:00
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touch $rfse
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2024-02-24 08:01:41 -08:00
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[[ $delete ]] && rm $rfse
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cat <<EOF > $rfse
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.[Tt]rash*
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tmp/
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cache/
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log/
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log[s]/
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lost+found
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EOF
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if [[ $list ]];then
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cat $rfse; rm -f $rfse
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else
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echo $rfse
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fi
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}
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mountpoints () {
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cat /proc/mounts | cut -d ' ' -f2 | sort
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}
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