The machines this targets are the ones with an updatedb already grinding
through every snapshot, and `systemctl start` on an active unit is a
no-op. updatedb reads /etc/updatedb.conf once at startup, so a run that
began before the rewrite keeps burning CPU on the old config until it
finishes. Restart the service instead: it's Type=oneshot and plocate
builds into a temp db, so nothing is lost by replacing the run.
Quotes are optional in updatedb.conf, so parse the existing paths out of
whatever quoting the file uses and write the setting back in one
canonical form. `PRUNEPATHS=/tmp` previously fell through to the append
branch and got a second PRUNEPATHS line, which drops /tmp from the
pruned set. Comparing whole paths rather than substrings also keeps a
config that already prunes something like /var/lib/machines/.snapshots
from being mistaken for one that prunes /.snapshots.
Prefer $OMARCHY_PATH over the packaged copy when locating the config
script, per docs/migrations.md, so the migration test exercises the
checked-out script rather than whatever release is installed. Skip when
neither exists: omarchy-migrate runs under set -e, so a missing script
would take down every migration queued behind it.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
The stock Arch updatedb.conf interacts badly with Omarchy's Btrfs
layout in both directions:
- Snapper snapshots under /.snapshots are nested subvolumes reached by
plain directory traversal, so updatedb indexes the entire system once
per snapshot. On machines that accumulated snapshots this means
multi-hour updatedb runs at full CPU, gigabytes of RAM, and a
multi-gigabyte plocate.db (observed: 18 GB db, 7.5 h runs at 96% CPU
with 592 snapshots; 43 MB and ~1 min after the fix).
- PRUNE_BIND_MOUNTS="yes" treats Btrfs subvolume mounts like /home as
bind mounts, so locate finds nothing in home directories at all.
Configure updatedb.conf at install time and migrate existing installs,
then rebuild the index in the background. Both settings are matched
tolerantly and appended when absent, so a hand-edited updatedb.conf is
fixed rather than silently skipped.
