librelad 3014965b66 feat(update): FOOTPRINT_VERSION drift detection — flag when a root re-install is needed
A manager-run 'update apply' refreshes code/apps/WebUI but CANNOT rewrite the
root-owned footprint (helpers/wrapper/uninstall/unit/sudoers) — that immutability
is the de-sudo boundary. Previously a release that changed those would silently
leave them stale. Make it explicit:

- init.sh: footprint_version=1 constant, baked at install into
  /usr/local/lib/libreportal/.footprint_version (root:root 0644) by initRootHelpers.
  Bump it whenever a root component changes.
- make_release.sh: publishes footprint_version in latest.json.
- fetch.sh: lpInstalledFootprintVersion (marker) + lpReleaseLatestFootprint (manifest).
- check_update.sh: 'update apply' REFUSES when the release's footprint_version
  exceeds the installed one, directing to a root re-install (which fetches +
  re-bakes everything atomically). No half-applied updates.
- webui_system_update.sh: badge sets footprint_update_needed + clears can_update so
  the WebUI won't offer a one-click apply for a footprint-bumping release.
- docs/DEVELOPMENT.md: the bump rule + the footprint exception explained.

Verified: manifest carries footprint_version; drift decision correct both ways
(no marker/older -> needs re-install; equal -> no drift).

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Signed-off-by: librelad <librelad@digitalangels.vip>
2026-05-25 19:07:16 +01:00
..