librelad 864059ab83 paths: recover the roots from the baked unit when nothing exported them
The three roots reach running code three ways — the CLI wrapper exports them,
the task-processor unit carries them as Environment=, and anything those start
inherits them. An @reboot crontab entry is started by none of the three: it runs
a script by absolute path, so paths.sh fell through to

    : "${LP_CONTAINERS_DIR:=/libreportal-containers}"

That entry is crontab_boot_app_reconcile.sh, which brings every installed app up
at boot. On a relocated install it therefore reconciled against the DEFAULT
root, and that does not fail — docker creates the bind-mount directories it does
not find, so every app comes back empty while the real data sits untouched on
the other disk. Nothing logs an error; the only symptom is opening an app and
finding it blank (storage-locations §10.1 calls this the top data-integrity
risk).

Verified on a case-2 install (apps on /mnt/lptest2): a bare environment resolved
containers_dir to /libreportal-containers/ where the real root was
/mnt/lptest2/libreportal-containers.

Recover them from the systemd unit, which is the authoritative baked record —
init.sh already reads it back the same way, libreportal-relocate rewrites it,
and it is root-owned, so this is not the manager reading a config it can edit.
An explicit environment still wins; with no unit the defaults are unchanged.

scripts/dev/lp-paths-roots-test pins all four cases; verified it fails when the
recovery is removed.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-08-28 06:31:02 +01:00
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