updatedb refuses to run at all on a config that defines a variable twice
("variable `PRUNEPATHS' was already defined"), so any rewrite that misses
an existing line and appends a second one takes the locate index down
rather than fixing it. Two shapes updatedb accepts got missed: a trailing
comment after the value, and a setting indented by whitespace.
Read the existing paths out of the quoted value and write the whole
setting back canonically instead of splicing into a line of unknown
shape. Quotes are not optional to updatedb ("value in quotes expected
after `='"), so a bare value is already a broken config: rewriting it
quoted repairs the file as a side effect.
The tests now hand every rewritten file to the real parser through
`updatedb --config-file`, which is what caught this.
Read the Snapper config as root when the running user cannot read it.
snapper create-config leaves the config root-only, and a config the user
cannot read was passing for one that wants its timeline snapshots kept.
Report the snapshots the drain could not delete. omarchy-migrate writes
the completion marker whether or not the batches succeeded, so there is
no later run to pick up the remainder, whatever the comment claimed.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
57 lines
2.1 KiB
Bash
57 lines
2.1 KiB
Bash
echo "Remove Snapper timeline snapshots leaked by earlier defaults"
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SNAPPER_CONFIG_PATH="${OMARCHY_SNAPPER_CONFIG_PATH:-/etc/snapper/configs/root}"
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as_root() {
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if (( EUID == 0 )); then
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"$@"
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else
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sudo "$@"
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fi
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}
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command -v snapper >/dev/null || exit 0
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[[ -f $SNAPPER_CONFIG_PATH ]] || exit 0
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# Only clean up when timeline snapshotting is off, as Omarchy configures it.
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# Anyone who deliberately turned it back on keeps their snapshots. Snapper's
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# own create-config leaves the file readable by root alone, and a config this
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# user cannot read must not pass for one that wants its snapshots kept.
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if [[ -r $SNAPPER_CONFIG_PATH ]]; then
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grep -qFx 'TIMELINE_CREATE="no"' "$SNAPPER_CONFIG_PATH" || exit 0
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else
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as_root grep -qFx 'TIMELINE_CREATE="no"' "$SNAPPER_CONFIG_PATH" || exit 0
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fi
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# Earlier installs ran hourly timeline snapshots. Later configs stopped
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# creating them but never deleted the existing ones, and number cleanup
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# skips snapshots marked Cleanup=timeline, so they pile up forever:
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# hundreds of snapshots pinning 100+ GB of extents on long-running machines.
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leaked=$(as_root snapper -c root --csvout list --columns number,cleanup 2>/dev/null | awk -F, '$2 == "timeline" { print $1 }' || true)
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[[ -n $leaked ]] || exit 0
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echo "Deleting $(wc -w <<<"$leaked") leaked timeline snapshots (disk space is reclaimed in the background)"
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# Delete in small batches; one big delete can die on a DBus timeout partway.
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# A failed batch must not take the rest of the migration run down with it, so
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# the drain is best effort. omarchy-migrate records the migration either way,
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# so say what is left rather than counting on a rerun that will not come.
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failed=0
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batch=()
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for number in $leaked; do
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batch+=("$number")
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if (( ${#batch[@]} == 20 )); then
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as_root snapper -c root delete "${batch[@]}" || failed=$((failed + ${#batch[@]}))
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batch=()
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fi
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done
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if (( ${#batch[@]} > 0 )); then
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as_root snapper -c root delete "${batch[@]}" || failed=$((failed + ${#batch[@]}))
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fi
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if (( failed > 0 )); then
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echo "$failed snapshots could not be deleted. Finish with: sudo snapper -c root delete <number>"
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fi
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