ci: add wasm check

.github/workflows/rust.yml

@@ -9,18 +9,24 @@ jobs:
       - uses: actions/checkout@v4
         with:
           lfs: true
+
       - name: Install rust toolchain
         uses: dtolnay/rust-toolchain@stable
+
       - name: Install nextest
         uses: taiki-e/install-action@nextest
+
       - name: Load rust cache
         uses: astriaorg/[email protected]
+
       - name: Run cargo check, failing on warnings
         run: cargo check --release --all-targets
         env:
           # The `-D warnings` option causes an error on warnings;
           # we must duplicate the rustflags from `.cargo/config.toml`.
           RUSTFLAGS: "-D warnings --cfg tokio_unstable"
+      - name: Check wasm compatibility
+        run: ./deployments/scripts/check-wasm-compat.sh
 
       # If a dependency was modified, Cargo.lock may flap if not committed.
       - name: Check for diffs
@@ -35,6 +41,7 @@ jobs:
           else
               echo "OK: no uncommitted changes detected"
           fi
+
       - name: Run tests with nextest
         run: cargo nextest run --release --features migration
         env:

deployments/scripts/check-wasm-compat.sh

@@ -0,0 +1,41 @@
+#!/usr/bin/env bash
+
+set -e
+
+packages=(
+  "penumbra-asset"
+  "penumbra-tct"
+  "penumbra-community-pool"
+  "penumbra-compact-block"
+  "penumbra-dex"
+  "penumbra-distributions"
+  "penumbra-fee"
+  "penumbra-funding"
+  "penumbra-governance"
+  "penumbra-ibc"
+  "penumbra-sct"
+  "penumbra-shielded-pool"
+  "penumbra-stake"
+  "penumbra-keys"
+  "penumbra-transaction"
+  "penumbra-txhash"
+  # Note: we can't include those ones because they rely on `getrandom`
+  # but there's a `js` feature...
+  # "penumbra-num"
+  # "penumbra-proto"
+  # "decaf377-fmd"
+  # "decaf377-frost"
+  # "decaf377-ka"
+  # "penumbra-proof-params"
+)
+
+for package in "${packages[@]}"; do
+  echo "Building package: $package"
+  cargo check --release --target wasm32-unknown-unknown --package "$package" --no-default-features
+  if [ $? -ne 0 ]; then
+    echo "Compile error encountered while building package $package"
+    exit 1
+  fi
+  echo "Package $package built successfully"
+  echo "------------------------"
+done