Add attic verification

Reviewed-on: #1

.gitea/workflows/dev.yml

@@ -67,6 +67,20 @@ jobs:
           attic login radiantwave https://attic.radiantwavetech.com "$ATTIC_TOKEN"
           attic push radiantwave:radiantwave-dev ./result-pkg
 
+      # attic push can exit 0 while storing a truncated NAR (dropped
+      # connection, disk full on the attic host), which kiosks then fail to
+      # fetch. Re-fetch the whole closure into a throwaway store to verify
+      # every NAR; if the upload is incomplete, `nix copy` errors and the
+      # manifest below is never published.
+      - name: Verify Attic upload
+        run: |
+          nix copy \
+            --from "https://attic.radiantwavetech.com/radiantwave-dev" \
+            --to "$PWD/.attic-verify-store" \
+            --no-check-sigs \
+            "$(readlink -f ./result-pkg)"
+          rm -rf "$PWD/.attic-verify-store"
+
       # Publish the manifest kiosks poll for live app updates. `storePath`
       # must match exactly the closure pushed to the dev Attic cache above
       # (readlink resolves the result-pkg out-link symlink to its real

.gitea/workflows/main.yml

@@ -2,7 +2,7 @@ name: build-main
 
 on:
   # Manual only. Dispatch against main: build, run the offline test suite,
-  # publish to the release Attic cache.
+  # publish to the release Attic cache and live-update manifest.
   workflow_dispatch:
 
 jobs:
@@ -74,3 +74,31 @@ jobs:
         run: |
           attic login radiantwave https://attic.radiantwavetech.com "$ATTIC_TOKEN"
           attic push radiantwave:radiantwave ./result-pkg
+
+      # attic push can exit 0 while storing a truncated NAR (dropped
+      # connection, disk full on the attic host), which kiosks then fail to
+      # fetch. Re-fetch the whole closure into a throwaway store to verify
+      # every NAR; if the upload is incomplete, `nix copy` errors and the
+      # manifest below is never published.
+      - name: Verify Attic upload
+        run: |
+          nix copy \
+            --from "https://attic.radiantwavetech.com/radiantwave" \
+            --to "$PWD/.attic-verify-store" \
+            --no-check-sigs \
+            "$(readlink -f ./result-pkg)"
+          rm -rf "$PWD/.attic-verify-store"
+
+      # Publish the manifest production kiosks poll for live app updates.
+      # `storePath` must match exactly the closure pushed to the release Attic
+      # cache above (readlink resolves the result-pkg out-link symlink to its
+      # real /nix/store path), so a kiosk can `nix copy --from` it without ever
+      # building from source. Upload mirrors the ISO scp pattern to the
+      # fileserver via the build-server's `radiantwave-infra` SSH alias.
+      - name: Publish manifest
+        run: |
+          STOREPATH=$(readlink -f ./result-pkg)
+          printf '{"version":"%s","storePath":"%s"}\n' "${{ env.APP_VERSION }}" "$STOREPATH" > manifest.json
+          cat manifest.json
+          scp manifest.json \
+            radiantwave-infra:/mnt/infrastructure_data/files/radiantwave/manifest.json