[[ $EUID == 0 ]] || exec sudo -E "$BASH_SOURCE" "$@"
errcatch() {
- set -E; shopt -s extdebug
- _err-trap() {
- err=$?
- exec >&2
- set +x
- echo "${BASH_SOURCE[1]}:${BASH_LINENO[0]}:in \`$BASH_COMMAND' returned $err"
- bash-trace 2
- echo "$0: exiting with code $err"
- exit $err
- }
- trap _err-trap ERR
- set -o pipefail
+ set -E; shopt -s extdebug
+ _err-trap() {
+ err=$?
+ exec >&2
+ set +x
+ echo "${BASH_SOURCE[1]}:${BASH_LINENO[0]}:in \`$BASH_COMMAND' returned $err"
+ bash-trace 2
+ echo "$0: exiting with code $err"
+ exit $err
+ }
+ trap _err-trap ERR
+ set -o pipefail
}
bash-trace() {
- local -i argc_index=0 frame i start=${1:-1} max_indent=8 indent
- local source
- local extdebug=false
- if [[ $(shopt -p extdebug) == *-s* ]]; then
- extdebug=true
- fi
+ local -i argc_index=0 frame i start=${1:-1} max_indent=8 indent
+ local source
+ local extdebug=false
+ if [[ $(shopt -p extdebug) == *-s* ]]; then
+ extdebug=true
+ fi
- for ((frame=0; frame < ${#FUNCNAME[@]}-1; frame++)); do
- argc=${BASH_ARGC[frame]}
- argc_index+=$argc
- ((frame < start)) && continue
- if (( ${#BASH_SOURCE[@]} > 1 )); then
- source="${BASH_SOURCE[frame+1]}:${BASH_LINENO[frame]}:"
- fi
- indent=$((frame-start+1))
- indent=$((indent < max_indent ? indent : max_indent))
- printf "%${indent}s↳%sin \`%s" '' "$source" "${FUNCNAME[frame]}"
- if $extdebug; then
- for ((i=argc_index-1; i >= argc_index-argc; i--)); do
- printf " %s" "${BASH_ARGV[i]}"
- done
- fi
- echo \'
- done
+ for ((frame=0; frame < ${#FUNCNAME[@]}-1; frame++)); do
+ argc=${BASH_ARGC[frame]}
+ argc_index+=$argc
+ ((frame < start)) && continue
+ if (( ${#BASH_SOURCE[@]} > 1 )); then
+ source="${BASH_SOURCE[frame+1]}:${BASH_LINENO[frame]}:"
+ fi
+ indent=$((frame-start+1))
+ indent=$((indent < max_indent ? indent : max_indent))
+ printf "%${indent}s↳%sin \`%s" '' "$source" "${FUNCNAME[frame]}"
+ if $extdebug; then
+ for ((i=argc_index-1; i >= argc_index-argc; i--)); do
+ printf " %s" "${BASH_ARGV[i]}"
+ done
+ fi
+ echo \'
+ done
}
errcatch
tu() {
- while read -r line; do
- file="$1"
- grep -xFq "$line" "$file" || tee -a "$file"<<<"$line"
- done
+ while read -r line; do
+ file="$1"
+ grep -xFq "$line" "$file" || tee -a "$file"<<<"$line"
+ done
}
e() { printf "%s\n" "$*"; "$@"; }
mnt() {
- dir=$1
- if ! mountpoint $dir &>/dev/null; then
- mkdir -p $dir
- e mount $dir
- fi
+ dir=$1
+ if ! mountpoint $dir &>/dev/null; then
+ mkdir -p $dir
+ e mount $dir
+ fi
}
fstab() {
- while read -r start mpoint end; do
- l="$start $mpoint $end"
- # kill off any lines that duplicate the mount point.
- sed --follow-symlinks -ri "\%$l%b;\%^\s*\S+\s+$mpoint\s%d" /etc/fstab
- tu /etc/fstab <<<"$l"
- done
+ while read -r start mpoint end; do
+ l="$start $mpoint $end"
+ # kill off any lines that duplicate the mount point.
+ sed --follow-symlinks -ri "\%$l%b;\%^\s*\S+\s+$mpoint\s%d" /etc/fstab
+ tu /etc/fstab <<<"$l"
+ done
}
kill-dir() {
- for sig; do
- echo kill-dir $sig
- found_pids=false
- if pids=$(timeout 4 lsof -t $dir); then
- found_pids=true
- timeout 4 lsof -w $dir
- kill -$sig $pids
- fi
- # fuser will find open sockets that lsof won't, for example from gpg-agent.
- # note: -v shows kernel processes, which then doesn't return true when we want
- if timeout 4 fuser -m $dir &>/dev/null; then
- found_pids=true
- fuser -$sig -mvk $dir
- fi
- sleep .5
- if ! $found_pids; then
- return 0
- fi
- done
- return 1
+ for sig; do
+ echo kill-dir $sig
+ found_pids=false
+ if pids=$(timeout 4 lsof -t $dir); then
+ found_pids=true
+ timeout 4 lsof -w $dir
+ kill -$sig $pids
+ fi
+ # fuser will find open sockets that lsof won't, for example from gpg-agent.
+ # note: -v shows kernel processes, which then doesn't return true when we want
+ if timeout 4 fuser -m $dir &>/dev/null; then
+ found_pids=true
+ fuser -$sig -mvk $dir
+ fi
+ sleep .5
+ if ! $found_pids; then
+ return 0
+ fi
+ done
+ return 1
}
force=false
if [[ $1 == -f ]]; then
- force=true
+ force=true
fi
ret=0
# to home directories
f=(/mnt/root/btrbk/q.*)
if [[ -e $f ]]; then
- fstab <<EOF
+ fstab <<EOF
$first_root_crypt /q btrfs noatime,subvol=q,gid=1000 0 0
/q/p /p none bind 0 0
EOF
f=(/mnt/root/btrbk/o.*)
if [[ -e $f ]]; then
- fstab <<EOF
+ fstab <<EOF
$first_root_crypt /o btrfs noatime,subvol=o 0 0
/o/m /m none bind 0 0
EOF
fi
if [[ $HOSTNAME == frodo ]]; then
- fstab <<EOF
+ fstab <<EOF
$first_root_crypt /i btrfs noatime,subvol=i 0 0
EOF
fi
##### end setup fstab for subvols we care about ######
for vol in q a o i; do
- d=/$vol
- if ! awk '{print $2}' /etc/fstab | grep -xF $d &>/dev/null; then
- continue
- fi
+ d=/$vol
+ if ! awk '{print $2}' /etc/fstab | grep -xF $d &>/dev/null; then
+ continue
+ fi
- ##### begin building up list of bind mounts ######
- binds=() # list of bind mounts
- roots=($d) # list of bind mounts, plus the original mount
- while true; do
- new_roots=()
- for r in ${roots[@]}; do
- # eg. when r=/q/p, for lines like
- # /q/p /p none bind 0 0
- # output /p
- new_roots+=($(sed -rn "s#^$r/\S+\s+(\S+)\s+none\s+bind\s.*#\1#p" /etc/fstab))
- done
- (( ${#new_roots} )) || break
- binds+=(${new_roots[@]})
- roots=( ${new_roots[@]} )
+ ##### begin building up list of bind mounts ######
+ binds=() # list of bind mounts
+ roots=($d) # list of bind mounts, plus the original mount
+ while true; do
+ new_roots=()
+ for r in ${roots[@]}; do
+ # eg. when r=/q/p, for lines like
+ # /q/p /p none bind 0 0
+ # output /p
+ new_roots+=($(sed -rn "s#^$r/\S+\s+(\S+)\s+none\s+bind\s.*#\1#p" /etc/fstab))
done
- ##### end building up list of bind mounts ######
-
+ (( ${#new_roots} )) || break
+ binds+=(${new_roots[@]})
+ roots=( ${new_roots[@]} )
+ done
+ ##### end building up list of bind mounts ######
- # if latest is already mounted, make sure binds are mounted and move on
- if e check-subvol-stale $d; then
- mnt $d
- for b in ${binds[@]}; do
- mnt $b
- done
- continue
- fi
- fresh_snap=$(</nocow/btrfs-stale/$vol)
- if [[ ! $fresh_snap ]]; then
- echo "$0: error. empty fresh_snap var"
- ret=1
- continue
- fi
+ # if latest is already mounted, make sure binds are mounted and move on
+ if e check-subvol-stale $d; then
+ mnt $d
+ for b in ${binds[@]}; do
+ mnt $b
+ done
+ continue
+ fi
- umount_ret=true
- unmounted=()
- for dir in $(echo $d ${binds[*]}\ |tac -s\ ); do
- if mountpoint $dir; then
- if e umount -R $dir; then
- unmounted+=($dir)
- else
- if ! kill-dir TERM TERM TERM INT INT HUP HUP; then
- if $force; then kill-dir KILL; fi
- fi
+ fresh_snap=$(</nocow/btrfs-stale/$vol)
+ if [[ ! $fresh_snap ]]; then
+ echo "$0: error. empty fresh_snap var"
+ ret=1
+ continue
+ fi
- if e umount -R $dir; then
- unmounted+=($dir)
- else
- echo "$0: failed to umount $dir"
- umount_ret=false
- ret=1
- continue
- fi
- fi
+ umount_ret=true
+ unmounted=()
+ for dir in $(echo $d ${binds[*]}\ |tac -s\ ); do
+ if mountpoint $dir; then
+ if e umount -R $dir; then
+ unmounted+=($dir)
+ else
+ if ! kill-dir TERM TERM TERM INT INT HUP HUP; then
+ if $force; then kill-dir KILL; fi
fi
- done
- if ! $umount_ret; then
- for dir in ${unmounted[@]}; do
- mnt $dir
- done
- continue
+ if e umount -R $dir; then
+ unmounted+=($dir)
+ else
+ echo "$0: failed to umount $dir"
+ umount_ret=false
+ ret=1
+ continue
+ fi
+ fi
fi
+ done
- # todo: decipher /mnt/root, like we do in check-subvol-stale
- cd /mnt/root
- if [[ -e $vol ]]; then
- e mv $vol $vol.leaf.$(date +%Y-%m-%dT%H:%M:%S-%z)
- fi
- # Note, we make a few assumptions in this script, like
- # $d was not a different subvol id than $vol, and
- # things otherwise didn't get mounted very strangely.
- e btrfs sub snapshot $fresh_snap $vol
- for dir in $d ${binds[@]}; do
- e mnt $dir
+ if ! $umount_ret; then
+ for dir in ${unmounted[@]}; do
+ mnt $dir
done
- stale_dir=/nocow/btrfs-stale
- rm -f $stale_dir/$d
+ continue
+ fi
+
+ # todo: decipher /mnt/root, like we do in check-subvol-stale
+ cd /mnt/root
+ if [[ -e $vol ]]; then
+ e mv $vol $vol.leaf.$(date +%Y-%m-%dT%H:%M:%S%z)
+ leaf_vols=($vol.leaf.*)
+ for leaf in ${leaf_vols[@]}; do
+ leaf_secs=$(date -d ${leaf#$vol.leaf.} +%s)
+ if (( $(date +%s) - 60*60*24*60 > leaf_secs )); then # 60 days
+ e btrfs sub del $leaf
+ fi
+ done
+ fi
+ # Note, we make a few assumptions in this script, like
+ # $d was not a different subvol id than $vol, and
+ # things otherwise didn't get mounted very strangely.
+ e btrfs sub snapshot $fresh_snap $vol
+ for dir in $d ${binds[@]}; do
+ e mnt $dir
+ done
+ stale_dir=/nocow/btrfs-stale
+ rm -f $stale_dir/$d
done
### disabled
if [[ $HOSTNAME == kdxxxxxxxxx ]]; then
- # partitioned it with fai partitioner outside of fai,
- # because it\'s worth it to have 1% space reserved for boot and
- # swap partitions in case I ever want to boot off those drives.
- # as root:
- # . /a/bin/fai/fai-wrapper
- # eval-fai-classfile /a/bin/fai/fai/config/class/51-multi-boot
- # fai-setclass ROTATIONAL
- # export LUKS_DIR=/q/root/luks/
- # # because the partition nums existed already
- # fai-setclass REPARTITION
- # /a/bin/fai/fai/config/hooks/partition.DEFAULT
+ # partitioned it with fai partitioner outside of fai,
+ # because it\'s worth it to have 1% space reserved for boot and
+ # swap partitions in case I ever want to boot off those drives.
+ # as root:
+ # . /a/bin/fai/fai-wrapper
+ # eval-fai-classfile /a/bin/fai/fai/config/class/51-multi-boot
+ # fai-setclass ROTATIONAL
+ # export LUKS_DIR=/q/root/luks/
+ # # because the partition nums existed already
+ # fai-setclass REPARTITION
+ # /a/bin/fai/fai/config/hooks/partition.DEFAULT
- devs=(
- ata-TOSHIBA_MD04ACA500_84REK6NTFS9A-part1
- ata-TOSHIBA_MD04ACA500_84R2K773FS9A-part1
- ata-TOSHIBA_MD04ACA500_8471K430FS9A-part1
- ata-TOSHIBA_MD04ACA500_8481K493FS9A-part1
- )
- first=true
- for dev in ${devs[@]}; do
- if $first; then
- first=false
- tu /etc/fstab <<EOF
+ devs=(
+ ata-TOSHIBA_MD04ACA500_84REK6NTFS9A-part1
+ ata-TOSHIBA_MD04ACA500_84R2K773FS9A-part1
+ ata-TOSHIBA_MD04ACA500_8471K430FS9A-part1
+ ata-TOSHIBA_MD04ACA500_8481K493FS9A-part1
+ )
+ first=true
+ for dev in ${devs[@]}; do
+ if $first; then
+ first=false
+ tu /etc/fstab <<EOF
/dev/mapper/crypt_dev_$dev /i btrfs noatime,subvol=i,noauto 0 0
/dev/mapper/crypt_dev_$dev /mnt/iroot btrfs noatime,subvolid=0,noauto 0 0
EOF
- fi
- tu /etc/crypttab <<EOF
+ fi
+ tu /etc/crypttab <<EOF
crypt_dev_$dev /dev/disk/by-id/$dev /q/root/luks/host-kd discard,luks
EOF
- if [[ ! -e /dev/mapper/crypt_dev_$dev ]]; then
- cryptdisks_start crypt_dev_$dev
- fi
- done
- # note, could do an else here and have some kind of mount for /i
- # on other hosts.
+ if [[ ! -e /dev/mapper/crypt_dev_$dev ]]; then
+ cryptdisks_start crypt_dev_$dev
+ fi
+ done
+ # note, could do an else here and have some kind of mount for /i
+ # on other hosts.
fi
exit $ret
iankelling.org / git / distro-setup / commitdiff