}
-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 $err
- }
- trap _err-trap ERR
- set -o pipefail
-}
-bash-trace() {
- local -i argc_index=0 frame i start=${1:-1} max_indent=8 indent
+err-bash-trace() {
+ local -i argc_index=0 frame i start=${1:-0} 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
if (( ${#BASH_SOURCE[@]} > 1 )); then
source="${BASH_SOURCE[frame+1]}:${BASH_LINENO[frame]}:"
fi
- indent=$((frame-start+1))
+ indent=$((frame-start + 1))
indent=$((indent < max_indent ? indent : max_indent))
printf "%${indent}s↳%sin \`%s" '' "$source" "${FUNCNAME[frame]}"
if $extdebug; then
fi
echo \'
done
+ return 0
}
-errcatch
+err-catch() {
+ set -E; shopt -s extdebug
+ _err-trap() {
+ err=$?
+ exec >&2
+ set +x
+ echo "${BASH_SOURCE[1]}:${BASH_LINENO[0]}: \`$BASH_COMMAND' returned $err"
+ err-bash-trace 2
+ set -e # err trap does not work within an error trap
+ "${_errcatch_cleanup[@]:-:}" # note :-: is to be compatible with set -u
+ echo "$0: exiting with code $err"
+ exit $err
+ }
+ trap _err-trap ERR
+ set -o pipefail
+}
+err-catch
tu() {
while read -r line; do
fi
done
+ # if we unmounted some but not all, restore them and move on
if ! $umount_ret; then
for dir in ${unmounted[@]}; do
mnt $dir
continue
fi
+ #### begin dealing with leaf vols ####
# todo: decipher /mnt/root, like we do in check-subvol-stale
cd /mnt/root
if [[ -e $vol ]]; then
### begin check if leaf is different, delete it if not ###
if [[ -e /a/opt/btrfs-snapshots-diff/btrfs-snapshots-diff.py ]]; then
+ source /a/bin/distro-functions/src/package-manager-abstractions
+ pi python-jmespath # dependency
parentid=$(btrfs sub show $leaf | awk '$1 == "Parent" && $2 == "UUID:" {print $3}')
bsubs=(/mnt/root/btrbk/$vol.*)
bsub=
if [[ $bsub ]]; then
tmp=$(mktemp)
# in testing, same subvol is 136 bytes. allow some overhead
- btrfs send --no-data -p $bsub $leaf | head -c 1000 > $tmp
+ btrfs send --no-data -p $bsub $leaf | head -c 1000 > $tmp || [[ $? == 141 ]]
if (( $(stat -c%s $tmp) < 1000)); then
# example output for an empty diff:
# Found a valid Btrfs stream header, version 1
done
## end expire leaf vols ##
fi
+ #### end dealing with leaf vols ####
+
# 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.
done
stale_dir=/nocow/btrfs-stale
rm -f $stale_dir/$d
+
done
### disabled