Use prebuilt binaries artifact in compose CI

.github/workflows/lint.yml

@@ -228,6 +228,31 @@ jobs:
       - name: Prepare workspace tmpdir
         run: mkdir -p "$TMPDIR"
 
+      - name: Restore cached nomos binaries
+        id: restore-nomos-bins
+        uses: actions/cache@v4
+        with:
+          path: ${{ github.workspace }}/.tmp/nomos-binaries.tar.gz
+          key: ${{ runner.os }}-nomos-binaries-${{ env.NOMOS_NODE_REV }}-${{ env.NOMOS_BUNDLE_VERSION }}
+
+      - name: Download nomos binaries artifact (fallback)
+        if: steps.restore-nomos-bins.outputs.cache-hit != 'true'
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          ARTIFACT_NAME: nomos-binaries-${{ runner.os }}-${{ env.NOMOS_NODE_REV }}-${{ env.NOMOS_BUNDLE_VERSION }}
+        run: |
+          set -euo pipefail
+          mkdir -p "${TMPDIR}"
+          artifact_id=$(gh api -X GET "repos/${GITHUB_REPOSITORY}/actions/artifacts" --paginate -F per_page=100 \
+            --jq '.artifacts[] | select(.name=="'"${ARTIFACT_NAME}"'") | .id' | head -n1)
+          if [ -z "$artifact_id" ]; then
+            echo "Nomos binaries artifact ${ARTIFACT_NAME} not found. Run build-binaries workflow." >&2
+            exit 1
+          fi
+          gh api -X GET "repos/${GITHUB_REPOSITORY}/actions/artifacts/${artifact_id}/zip" > "${TMPDIR}/nomos-binaries.zip"
+          unzip -o "${TMPDIR}/nomos-binaries.zip" -d "${TMPDIR}"
+          mv "${TMPDIR}/nomos-binaries.tar.gz" "${GITHUB_WORKSPACE}/.tmp/nomos-binaries.tar.gz"
+
       - name: Set compose target dir
         run: echo "CARGO_TARGET_DIR=${RUNNER_TEMP}/target-compose" >> "$GITHUB_ENV"
 
@@ -276,6 +301,7 @@ jobs:
           RUST_LOG: "info"
           NOMOS_LOG_LEVEL: "info"
           NOMOS_LOG_DIR: "${{ github.workspace }}/.tmp/compose-logs"
+          NOMOS_BINARIES_TAR: "${{ github.workspace }}/.tmp/nomos-binaries.tar.gz"
         run: |
           mkdir -p "$TMPDIR"
           scripts/run-demo.sh compose 60

scripts/run-demo.sh

@@ -23,6 +23,7 @@ RUN_SECS="${2:-60}"
 VERSION="${VERSION:-v0.3.1}"
 IMAGE="${NOMOS_TESTNET_IMAGE:-nomos-testnet:local}"
 NOMOS_NODE_REV="${NOMOS_NODE_REV:-d2dd5a5084e1daef4032562c77d41de5e4d495f8}"
+RESTORED_BINARIES=0
 
 case "$MODE" in
   compose) BIN="compose_runner" ;;
@@ -31,6 +32,41 @@ case "$MODE" in
   *) echo "Unknown mode '$MODE' (use compose|local)" >&2; exit 1 ;;
 esac
 
+restore_binaries_from_tar() {
+  local tar_path="${NOMOS_BINARIES_TAR:-${ROOT_DIR}/.tmp/nomos-binaries.tar.gz}"
+  local extract_dir="${ROOT_DIR}/.tmp/nomos-binaries"
+  if [ ! -f "$tar_path" ]; then
+    return 1
+  fi
+  echo "==> Restoring binaries from ${tar_path}"
+  rm -rf "${extract_dir}"
+  mkdir -p "${extract_dir}"
+  tar -xzf "$tar_path" -C "${extract_dir}"
+  local src="${extract_dir}/artifacts"
+  local bin_dst="${ROOT_DIR}/testing-framework/assets/stack/bin"
+  local circuits_src="${src}/circuits"
+  local circuits_dst="${ROOT_DIR}/testing-framework/assets/stack/kzgrs_test_params"
+  if [ -f "${src}/nomos-node" ] && [ -f "${src}/nomos-executor" ] && [ -f "${src}/nomos-cli" ]; then
+    mkdir -p "${bin_dst}"
+    cp "${src}/nomos-node" "${bin_dst}/"
+    cp "${src}/nomos-executor" "${bin_dst}/"
+    cp "${src}/nomos-cli" "${bin_dst}/"
+  else
+    echo "Binaries missing in ${tar_path}; fallback to build-from-source path" >&2
+    return 1
+  fi
+  if [ -d "${circuits_src}" ] && [ -f "${circuits_src}/kzgrs_test_params" ]; then
+    rm -rf "${circuits_dst}"
+    mkdir -p "${circuits_dst}"
+    rsync -a --delete "${circuits_src}/" "${circuits_dst}/"
+  else
+    echo "Circuits missing in ${tar_path}; fallback to download/build path" >&2
+    return 1
+  fi
+  RESTORED_BINARIES=1
+  export RESTORED_BINARIES
+}
+
 ensure_host_binaries() {
   # Build nomos-node/nomos-executor for the host if not already present.
   HOST_SRC="${ROOT_DIR}/.tmp/nomos-node-host-src"
@@ -75,9 +111,15 @@ ensure_host_binaries() {
   export NOMOS_NODE_BIN NOMOS_EXECUTOR_BIN
 }
 
+restore_binaries_from_tar || true
+
 echo "==> Preparing circuits (version ${VERSION})"
 SETUP_OUT="/tmp/nomos-setup-output.$$"
-"${ROOT_DIR}/scripts/setup-circuits-stack.sh" "${VERSION}" </dev/null | tee "$SETUP_OUT"
+if [ "${RESTORED_BINARIES}" -ne 1 ]; then
+  "${ROOT_DIR}/scripts/setup-circuits-stack.sh" "${VERSION}" </dev/null | tee "$SETUP_OUT"
+else
+  echo "Skipping circuits setup; using restored bundle"
+fi
 
 # Prefer the host bundle if it exists; otherwise fall back to Linux bundle.
 if [ -d "${ROOT_DIR}/.tmp/nomos-circuits-host" ]; then