From 78ab16a59d607551a04496ba6ddbc46fe1f140c5 Mon Sep 17 00:00:00 2001
From: brunota20 <brunot.anjos@gmail.com>
Date: Wed, 17 Jun 2026 09:21:21 -0300
Subject: [PATCH] ci: build all production module .wasm targets via matrix
 (COW-1066)

Previously `build-module` only compiled `-p example`, leaving the 5
production modules (twap-monitor, ethflow-watcher, price-alert,
balance-tracker, stop-loss) without CI coverage on the wasm side.
A wasm-build regression (broken cowprotocol feature flag, alloy
version drift, no_std assumption broken) would ship to upstream
review without CI catching it.

This converts the job to a `matrix.module` strategy listing all 6
modules (example kept for parity) and adds a tiny "report wasm
size" step so reviewers can spot size regressions in the Actions
log. `fail-fast: false` so one broken module does not mask others.

Verified locally:

- example          builds clean
- twap-monitor     builds clean
- ethflow-watcher  builds clean
- price-alert      builds clean
- balance-tracker  builds clean
- stop-loss        builds clean

Linear: COW-1066.
---
 .github/workflows/ci.yml | 22 ++++++++++++++++++++--
 1 file changed, 20 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 99de175..3bbd544 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -56,8 +56,18 @@ jobs:
       - run: cargo test --workspace --all-features --no-fail-fast
 
   build-module:
-    name: build example module
+    name: build ${{ matrix.module }} (wasm32-wasip2)
     runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        module:
+          - example
+          - twap-monitor
+          - ethflow-watcher
+          - price-alert
+          - balance-tracker
+          - stop-loss
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - uses: dtolnay/rust-toolchain@3c5f7ea28cd621ae0bf5283f0e981fb97b8a7af9 # master 2026-03-27
@@ -65,4 +75,12 @@ jobs:
           toolchain: nightly
           targets: wasm32-wasip2
       - uses: Swatinem/rust-cache@c19371144df3bb44fab255c43d04cbc2ab54d1c4 # v2.9.1
-      - run: cargo build -p example --target wasm32-wasip2 --release
+      - run: cargo build -p ${{ matrix.module }} --target wasm32-wasip2 --release
+      - name: report wasm size
+        run: |
+          artifact_name=$(echo "${{ matrix.module }}" | tr '-' '_')
+          wasm_path="target/wasm32-wasip2/release/${artifact_name}.wasm"
+          if [ -f "$wasm_path" ]; then
+            size=$(wc -c < "$wasm_path")
+            echo "${{ matrix.module }} .wasm size: ${size} bytes"
+          fi