-v|--verbose Be more verbose
-Note, at source location, intentionally not executable, run and read
-install-my-scripts.
+Note: In git this is not not executable because it's meant to be installed
+using ./install-my-scripts
Note: Uses util-linux getopt option parsing: spaces between args and
options, short options can be combined, options before args.
exit $1
}
+all_vols=(q a o i ar qr)
+
tu() {
while read -r line; do
}
# duplicated in check-subvol
+# Reassign $1 var from /dev/dm- to corresponding /dev/mapper/
mapper-dev() {
local mapdev
local -n devref=$1
mnt /mnt/boot2
fi
+do_o=true
root_dev=$(awk '$2 == "/" {print $1}' /etc/mtab)
mapper-dev root_dev
+o_dev=$(awk '$2 == "/mnt/o" {print $1}' /etc/mtab)
+mapper-dev o_dev
+
+if [[ $o_dev == "$root_dev" ]]; then
+ do_o=false
+fi
# root2_dev=$(awk '$2 == "/mnt/root2" {print $1}' /etc/mtab)
# mapper-dev root2_dev
crypt_dev=$root_dev
else # if we are in a recovery boot, find the next best crypt device
mopts=,noauto
+ do_o=false
for dev in $(dmsetup ls --target crypt | awk '{print $1}'); do
dev=/dev/mapper/$dev
if awk '{print $1}' /etc/mtab | grep -Fx $dev &>/dev/null; then
EOF
fi
-f=(/mnt/root/btrbk/o.*); f=${f[0]}
+f=(/mnt/root/btrbk/qr.*); f=${f[0]}
if [[ -e $f ]]; then
fstab <<EOF
-$crypt_dev /o btrfs noatime,subvol=o$mopts 0 0
-/o/m /m none bind$mopts 0 0
+$crypt_dev /qr btrfs noatime,subvol=qr$mopts 0 0
EOF
fi
-if [[ $HOSTNAME == frodo ]]; then
+f=(/mnt/root/btrbk/ar.*); f=${f[0]}
+if [[ -e $f ]]; then
fstab <<EOF
-$crypt_dev /i btrfs noatime,subvol=i$mopts 0 0
+$crypt_dev /ar btrfs noatime,subvol=ar,uid=1000,gid=1000$mopts 0 0
EOF
fi
+f=(/mnt/o/btrbk/o.*); f=${f[0]}
+if [[ -e $f ]]; then
+ fstab <<EOF
+$o_dev /o btrfs noatime,subvol=o$mopts 0 0
+/o/m /m none bind$mopts 0 0
+EOF
+else
+ do_o=false
+fi
+
##### end setup fstab for subvols we care about ######
done
### end get pids that this program depends on so we dont kill them
-for vol in q a o i; do
+for vol in ${all_vols[@]}; do
d=/$vol
if ! awk '{print $2}' /etc/fstab | grep -xF $d &>/dev/null; then
continue
continue
fi
- if [[ $vol == q ]]; then
- # allow to fail, user might not be logged in
- x sudo -u $(id -nu 1000) XDG_RUNTIME_DIR=/run/user/1000 systemctl --user stop arbtt ||:
- fi
+ ## not using arbtt at the moment
+ # if [[ $vol == q ]]; then
+ # ## allow to fail, user might not be logged in
+ # x sudo -u $(id -nu 1000) XDG_RUNTIME_DIR=/run/user/1000 systemctl --user stop arbtt ||:
+ # fi
umount_ret=true
unmounted=()
for dir in $(echo $d ${binds[*]}\ |tac -s\ ); do
m btrfs property set -ts $leaf ro true
### begin check if leaf is different, delete it if not ###
- if [[ -e /a/opt/btrfs-snapshots-diff/btrfs-snapshots-diff.py ]]; then
- source /a/bin/distro-functions/src/package-manager-abstractions
- #pi python-jmespath # dependency of btrfs-snapshots-diff
- # todo: need python3 port of btrfs-snapshots-diff, py2 no exist on nabia
- parentid=$(btrfs sub show $leaf | awk '$1 == "Parent" && $2 == "UUID:" {print $3}')
- bsubs=(/mnt/root/btrbk/$vol.*)
- bsub=
- # go in reverse order as its more likely to be at the end
- for ((i=${#bsubs[@]}-1; i>=0; i--)); do
- if [[ $parentid == $(btrfs sub show ${bsubs[i]} | awk '$1 == "UUID:" {print $2}') ]]; then
- bsub=${bsubs[i]}
- break
- fi
- done
- if [[ $bsub ]]; then
- tmp=$(mktemp)
- # in testing, same subvol is 136 bytes. allow some overhead. 32 happens sometimes under systemd.
- # $ errno 32
- # EPIPE 32 Broken pipe
- btrfs send --no-data -p $bsub $leaf | head -c 1000 > $tmp || [[ $? == 141 || ${PIPESTATUS[0]} == 32 ]]
- if (( $(stat -c%s $tmp) < 1000)); then
- # example output for an empty diff:
- # Found a valid Btrfs stream header, version 1
- # o.leaf.2019-05-15T14:00:50-0400;snapshot: uuid=ba045ea30737dd449003f1ee40ec12d0, ctrasid=109533, clone_uuid=3c7e3544e486834aa71d89e5b8f30056, clone_ctransid=109533
- lines=$(/a/opt/btrfs-snapshots-diff/btrfs-snapshots-diff.py -s -f $tmp | \
- grep -vxF "Found a valid Btrfs stream header, version 1" | \
- grep -cv "^[^;]*;snapshot: ") ||:
- if [[ $lines == 0 ]]; then
- # rotate in case we find a bug, weve got 2 old ones
- tmpleaf=($vol.tmpleaf2.*)
- if (( ${#tmpleaf[@]} )); then
- x btrfs sub del ${tmpleaf[@]}
- fi
- tmpleaf=($vol.tmpleaf1.*)
- if (( ${#tmpleaf[@]} )); then
- x mv ${tmpleaf[0]} $vol.tmpleaf2.${tmpleaf[0]#$vol.tmpleaf1.}
- fi
- echo suspected identical: $bsub $leaf
- x mv $leaf $vol.tmpleaf1.${leaf#$vol.leaf.}
- fi
- fi
+ parentid=$(btrfs sub show $leaf | awk '$1 == "Parent" && $2 == "UUID:" {print $3}')
+ bsubs=(btrbk/$vol.*)
+ bsub= # base subvolume
+ # go in reverse order as its more likely to be at the end
+ for ((i=${#bsubs[@]}-1; i>=0; i--)); do
+ if [[ $parentid == $(btrfs sub show ${bsubs[i]} | awk '$1 == "UUID:" {print $2}') ]]; then
+ bsub=${bsubs[i]}
+ break
+ fi
+ done
+ if [[ $bsub ]]; then
+ tmp=$(mktemp)
+ # in testing, same subvol is 136 bytes. allow some overhead. 32 happens sometimes under systemd.
+ # $ errno 32
+ # EPIPE 32 Broken pipe
+ lines=$(btrfs send --no-data -p $bsub $leaf | btrfs receive --dump | head -n 100 | wc -l || [[ $? == 141 || ${PIPESTATUS[0]} == 32 ]])
+ if [[ $lines == 0 ]]; then
+ # example output of no differences:
+ # snapshot ./qrtest uuid=c41ff6b7-0527-f34d-95ac-190eecf54ff5 transid=2239 parent_uuid=64949e1b-4a3e-3945-9a8e-cd7b7c15d7d6 parent_transid=2239
+ echo suspected identical: $bsub $leaf
+ x btrfs sub del $leaf
fi
fi
### end check if leaf is different, delete it if not ###
## begin expire leaf vols ##
leaf_vols=($vol.leaf.*)
count=${#leaf_vols[@]}
- leaf_limit_time=$(( $(date +%s) - 60*60*24*60 )) # 60 days
- leaf_new_limit_time=$(( $(date +%s) - 60*60*24 )) # 1 day
+ leaf_limit_time=$(( EPOCHSECONDS - 60*60*24*60 )) # 60 days
+ leaf_new_limit_time=$(( EPOCHSECONDS - 60*60*24 )) # 1 day
# this goes backwards from oldest. leaf_new_limit_time is just in case
# the order gets screwed up or something.
for leaf in ${leaf_vols[@]}; do
for dir in $d ${binds[@]}; do
m mnt $dir
done
- if [[ $vol == q ]]; then
- # maybe this will fail if X is not running
- x sudo -u $(id -nu 1000) XDG_RUNTIME_DIR=/run/user/1000 systemctl --user start arbtt ||:
- fi
+
+ ## arbtt disabled for now
+ # if [[ $vol == q ]]; then
+ # # maybe this will fail if X is not running
+ # x sudo -u $(id -nu 1000) XDG_RUNTIME_DIR=/run/user/1000 systemctl --user start arbtt ||:
+ # fi
+
stale_dir=/nocow/btrfs-stale
rm -f $stale_dir/$d
done
-for dir in /mnt/r7/amy/{root,boot}_ubuntubionic /mnt/{root2/root,boot2/boot}_ubuntubionic; do
+for dir in /mnt/r7/amy/{root/root,boot/boot}_ubuntubionic /mnt/{root2/root,boot2/boot}_ubuntubionic; do
vol=${dir##*/}
root_dir=${dir%/*}
if [[ ! -d $root_dir ]]; then
iankelling.org / git / distro-setup / blobdiff