Per-snapshot size + file-count come from the embedded summary block
restic added to 'snapshots --json' in 0.17 (the source comment in
internal/restic/snapshots.go incorrectly said 0.16+). Hosts running
0.16.x leave those columns blank.
- Fix the snapshots.go doc comment: '0.16+' -> '0.17+'.
- hostDetailPage carries a LegacyRestic bool computed from the host's
reported ResticVersion via Env.AtLeastVersion(0, 17). Empty version
also counts as legacy (conservative default).
- Template attaches title='Needs restic 0.17+ on the agent host. This
host runs <ver>.' + cursor:help on the SIZE / FILES headers when
the flag is true. Hosts already on 0.17+ get no tooltip and no
extra styling.
A host upgrading restic to 0.17+ gets the columns populated on the
next backup automatically — no further code change needed.
Agent calls restic snapshots --json after each successful backup
(60s timeout, separate from the backup ctx) and ships the projection
over the existing snapshots.report WS envelope. Failure here is
logged but doesn't fail the job — the next successful backup catches
the projection up.
Server-side ReplaceHostSnapshots is delete-then-insert plus a
hosts.snapshot_count update in one transaction so the dashboard's
per-host count stays consistent with the projection. New read
endpoint GET /api/hosts/{id}/snapshots returns the cached list with
a refreshed_at marker so the UI can show staleness when an agent
has been offline.
Schema: dropped the unused snapshots.repo_id FK (repos as a
first-class entity is P2 work), added short_id and refreshed_at
columns, switched the time index to DESC for the most-recent-first
list query. api.Snapshot gains short_id; size_bytes/file_count come
from the embedded summary block on restic 0.16+ and stay zero on
older clients.
Tests cover round-trip, authoritative replacement after forget+prune
shrinkage, and empty-after-wipe.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
steve