ci: build and upload artifacts

.github/workflows/artifacts.yml

@@ -0,0 +1,35 @@
+name: Artifacts
+
+on:
+  push:
+    branches:
+      - master
+      - main
+  pull_request:
+    branches:
+      - master
+      - main
+  workflow_dispatch:
+
+env:
+  RUST_BACKTRACE: 1
+  CARGO_TERM_COLOR: always
+
+jobs:
+  artifacts:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout sources
+        uses: actions/checkout@v3
+
+      - name: Install cargo make
+        uses: davidB/rust-cargo-make@v1
+
+      - name: Compile contracts to wasm
+        run: cargo make rust-optimizer
+
+      - name: Upload artifacts
+        uses: actions/upload-artifact@v3
+        with:
+          name: artifacts
+          path: artifacts/

Makefile.toml

@@ -1,5 +1,24 @@
 [env]
 CARGO_MAKE_EXTEND_WORKSPACE_MAKEFILE = true
+# If you bump this version, verify RUST_VERSION correctness
+RUST_OPTIMIZER_VERSION = "0.13.0"
+# Use rust version from rust-optimizer Dockerfile (see https://github.com/CosmWasm/rust-optimizer/blob/main/Dockerfile#L1)
+# to be sure that we compile / test against the same version
+RUST_VERSION = "1.69.0"
+
+[tasks.rust-optimizer]
+cwd = "${CARGO_MAKE_WORKSPACE_WORKING_DIRECTORY}"
+script = """
+if [[ $(arch) == "arm64" ]]; then
+  image="cosmwasm/workspace-optimizer-arm64:${RUST_OPTIMIZER_VERSION}"
+else
+  image="cosmwasm/workspace-optimizer:${RUST_OPTIMIZER_VERSION}"
+fi
+docker run --rm -v "$(pwd)":/code \
+  --mount type=volume,source="$(basename "$(pwd)")_cache",target=/code/target \
+  --mount type=volume,source=registry_cache,target=/usr/local/cargo/registry \
+  ${image}
+"""
 
 [tasks.format]
 toolchain = "nightly"