temp: backup freshness check

.gitea/workflows/backup-check.yml

@@ -0,0 +1,22 @@
+name: backup-check
+on:
+  workflow_dispatch:
+jobs:
+  check:
+    runs-on: nixos
+    steps:
+      - name: inspect restic repo freshness
+        run: |
+          set +e
+          /run/current-system/sw/bin/docker run --rm -v /mnt/backups:/b:ro ubuntu:24.04 bash -c '
+            echo "== now"; date
+            for p in /b/perlis-appdata /b/perlis-conf; do
+              echo "-- $p"
+              stat -c "  mtime=%y" "$p" 2>&1
+              echo -n "  snapshots: "; ls -1 "$p/snapshots" 2>/dev/null | wc -l
+              echo -n "  newest snapshot file: "; ls -1t "$p/snapshots" 2>/dev/null | head -1
+              stat -c "  newest mtime=%y" "$p/snapshots/$(ls -1t "$p/snapshots" 2>/dev/null | head -1)" 2>&1
+              du -sh "$p" 2>/dev/null
+            done
+            echo "== df"; df -h /b
+          '