librelad c6d92bbc58 perf(backup): drop sudo overhead from sourceBackupLocations (Phase 6)
The location_loader's find ran through runFileOp (sudo -u libreportal),
which forks a sudo shell purely for the find call. configs/backup/
locations/ is already manager-owned (not in the dockerinstall-owned
containers tree), so the sudo step adds ~50 ms of process-creation
overhead for zero security benefit.

Plain `find` now, with a tiny [[ ! -r || ! -x ]] guard that falls
back to runFileOp if someone relocates the dir to a non-traversable
location. Same observable behaviour, ~50 ms saved per CLI invocation.

This is the simpler half of Phase 6 — the libreportal_configs scan
itself was already plain-find (only ~11 ms total for 22 files). The
remaining costly scan is app_configs against /libreportal-containers/,
which legitimately needs sudo because dockerinstall owns that tree.
Precompiling its content is possible but adds invalidation complexity
(updateConfigOption writes happen at runtime) — deferred for now;
better return on simpler interventions.

Signed-off-by: librelad <librelad@digitalangels.vip>
2026-05-26 21:39:22 +01:00
..