feat: cover JS example under CI (#272)

* chore(lang/js): make jco tutorial easier to run

Signed-off-by: Victor Adossi <vadossi@cosmonic.com>

* feat(ci): add js lang to CI

Signed-off-by: Victor Adossi <vadossi@cosmonic.com>

* chore: add package-lock.json to generated

Signed-off-by: Victor Adossi <vadossi@cosmonic.com>

---------

Signed-off-by: Victor Adossi <vadossi@cosmonic.com>

Author: vados-cosmonic

.gitattributes

@@ -7,5 +7,8 @@
 # Genrated code from cargo-component
 component-model/examples/tutorial/*/src/bindings.rs linguist-generated
 
+# Generated code from JS tutorial
+component-model/examples/tutorial/jco/package-lock.json linguist-generated
+
 Cargo-component.lock linguist-language=toml
 

.github/workflows/js.yml

@@ -0,0 +1,55 @@
+name: javascript
+
+on:
+  merge_group:
+  push:
+    branches:
+      - main
+
+  pull_request:
+    branches:
+      - main
+
+defaults:
+  run:
+    shell: bash
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node-version:
+          - 18.x
+          - 20.x
+          - latest
+        projects:
+          - folder: component-model/examples/tutorial/jco
+            script-target: all
+    steps:
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+
+      - uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
+        with:
+          node-version: ${{ matrix.node-version }}
+
+      - name: Cache npm install
+        uses: actions/cache@5a3ec84eff668545956fd18022155c47e93e2684 # v4.2.3
+        with:
+          key: node-modules-${{ matrix.node-version }}-${{ runner.os }}-${{ runner.arch }}-${{ hashFiles('${{ matrix.projects.folder }}/package-lock.json') }}
+          path: |
+            ${{ matrix.projects.folder }}
+
+      - name: Install NodeJS dependencies
+        working-directory: ${{ matrix.projects.folder }}
+        run: |
+          npm install
+
+      - name: Run NodeJS script target
+        working-directory: ${{ matrix.projects.folder }}
+        run: |
+          npm run ${{ matrix.projects.script-target }}

.gitignore

@@ -6,3 +6,4 @@
 # Build artifacts from examples
 **/jco/bindings
 **/examples/**/*.wasm
+/component-model/examples/tutorial/jco/node_modules/

component-model/examples/tutorial/calculator/src/bindings.rs

@@ -1,4 +1,4 @@
 // See the README for details on *generation* of the required import
-import { calculate } from "./bindings/composed.js";
+import { calculate } from "./bindings/calculator.composed.js";
 
 console.log("Answer (to life) = " + calculate.evalExpression("add", 21, 21));