ci: Auto cargo publish / npm publish

Author: encounter

Diff for: .github/workflows/build.yaml

@@ -72,7 +72,7 @@ jobs:
     name: Test
     strategy:
       matrix:
-        platform: [ubuntu-latest, windows-latest, macos-latest]
+        platform: [ ubuntu-latest, windows-latest, macos-latest ]
       fail-fast: false
     runs-on: ${{ matrix.platform }}
     steps:
@@ -249,22 +249,30 @@ jobs:
           components: rust-src
       - name: Cache Rust workspace
         uses: Swatinem/rust-cache@v2
+      - name: Setup Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: lts/*
       - name: Install dependencies
-        run: npm -C objdiff-wasm install
+        run: npm -C objdiff-wasm ci
       - name: Build
         run: npm -C objdiff-wasm run build
+      - name: Upload artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: wasm
+          path: objdiff-wasm/dist/
+          if-no-files-found: error
 
-  release:
-    name: Release
+  check-version:
+    name: Check package versions
     if: startsWith(github.ref, 'refs/tags/')
     runs-on: ubuntu-latest
-    needs: [build-cli, build-gui]
-    permissions:
-      contents: write
+    needs: [ build-cli, build-gui ]
     steps:
       - name: Checkout
         uses: actions/checkout@v4
-      - name: Check git tag against Cargo version
+      - name: Check git tag against package versions
         shell: bash
         run: |
           set -eou pipefail
@@ -276,9 +284,24 @@ jobs:
             echo "::error::Git tag doesn't match the Cargo version! ($tag != $version)"
             exit 1
           fi
+          version="v$(jq -r .version objdiff-wasm/package.json)"
+          if [ "$tag" != "$version" ]; then
+            echo "::error::Git tag doesn't match the npm version! ($tag != $version)"
+            exit 1
+          fi
+
+  release-github:
+    name: Release (GitHub)
+    if: startsWith(github.ref, 'refs/tags/')
+    runs-on: ubuntu-latest
+    needs: [ check-version ]
+    permissions:
+      contents: write
+    steps:
       - name: Download artifacts
         uses: actions/download-artifact@v4
         with:
+          pattern: objdiff-*
           path: artifacts
       - name: Rename artifacts
         working-directory: artifacts
@@ -308,3 +331,53 @@ jobs:
           files: out/*
           draft: true
           generate_release_notes: true
+
+  release-cargo:
+    name: Release (Cargo)
+    if: startsWith(github.ref, 'refs/tags/')
+    runs-on: ubuntu-latest
+    needs: [ check-version ]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Setup Rust toolchain
+        uses: dtolnay/rust-toolchain@stable
+      - name: Publish
+        env:
+          CARGO_REGISTRY_TOKEN: ${{ secrets.CARGO_REGISTRY_TOKEN }}
+        run: cargo publish -p objdiff-core --dry-run
+
+  release-npm:
+    name: Release (npm)
+    if: startsWith(github.ref, 'refs/tags/')
+    runs-on: ubuntu-latest
+    needs: [ check-version ]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Setup Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: lts/*
+          registry-url: 'https://registry.npmjs.org'
+      - name: Download artifacts
+        uses: actions/download-artifact@v4
+        with:
+          name: wasm
+          path: objdiff-wasm/dist
+      - name: Publish
+        working-directory: objdiff-wasm
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
+        run: |
+          set -euo pipefail
+          version=$(jq -r '.version' package.json)
+          tag="latest"
+          # Check for prerelease by looking for a dash
+          case "$version" in
+            *-*)
+              tag=$(echo "$version" | sed -e 's/^[^-]*-//' -e 's/\..*$//')
+              ;;
+          esac
+          echo "Publishing version $version with tag '$tag'..."
+          npm publish --provenance --access public --tag "$tag" --dry-run