feat: allow custom weval bin

.github/workflows/main.yml

@@ -45,6 +45,13 @@ jobs:
             macos-latest
         ]
         node: [18.x, 20.x, latest]
+        include:
+          - os: windows-latest
+            weval-bin-path: .weval-bin/weval.exe
+          - os: ubuntu-latest
+            weval-bin-path: .weval-bin/weval
+          - os: macos-latest
+            weval-bin-path: .weval-bin/weval
         exclude:
           - os: macos-latest
             node: 20.x
@@ -61,19 +68,61 @@ jobs:
     - uses: actions/setup-node@v3
       with:
         node-version: ${{ matrix.node }}
+
+    # Determine weval version
+    - name: Determine weval version
+      id: weval-meta
+      shell: bash
+      run: |
+        export WEVAL_LATEST_URL=`curl -Ls -o /dev/null -w %{url_effective} https://github.com/bytecodealliance/weval/releases/latest`
+        export WEVAL_VERSION=${WEVAL_LATEST_URL#https://github.com/bytecodealliance/weval/releases/tag/}
+        echo -e "version=$WEVAL_VERSION" >> $GITHUB_OUTPUT
+
+    # Use cached weval bin if present
+    - name: Cache weval bin
+      id: cache-weval-bin
+      uses: actions/cache@v4
+      with:
+        path: .weval-bin
+        key: weval-bin-${{ steps.weval-meta.outputs.version }}-${{ matrix.os }}
+
+    # (no cached weval bin) download weval release
+    - if: ${{ steps.cache-weval-bin.outputs.cache-hit != 'true' && matrix.os == 'ubuntu-latest' }}
+      run: |
+        curl -LO https://github.com/bytecodealliance/weval/releases/download/${{ steps.weval-meta.outputs.version }}/weval-${{ steps.weval-meta.outputs.version }}-x86_64-linux.tar.xz
+        tar -xvJf weval-${{ steps.weval-meta.outputs.version }}-x86_64-linux.tar.xz
+        mv weval-${{ steps.weval-meta.outputs.version }}-x86_64-linux/weval .weval-bin
+    - if: ${{ steps.cache-weval-bin.outputs.cache-hit != 'true' && matrix.os == 'windows-latest' }}
+      run: |
+        curl -LO https://github.com/bytecodealliance/weval/releases/download/${{ steps.weval-meta.outputs.version }}/weval-${{ steps.weval-meta.outputs.version }}-x86_64-windows.zip
+        unzip weval-${{ steps.weval-meta.outputs.version }}-x86_64-windows.zip
+        mv weval-${{ steps.weval-meta.outputs.version }}-x86_64-windows .weval-bin
+    - if: ${{ steps.cache-weval-bin.outputs.cache-hit != 'true' && matrix.os == 'macos-latest' }}
+      run: |
+        curl -LO https://github.com/bytecodealliance/weval/releases/download/${{ steps.weval-meta.outputs.version }}/weval-${{ steps.weval-meta.outputs.version }}-aarch64-macos.tar.xz
+        tar -xvJf weval-${{ steps.weval-meta.outputs.version }}-aarch64-macos.tar.xz
+        mkdir .weval-bin
+        mv weval-${{ steps.weval-meta.outputs.version }}-aarch64-macos/weval .weval-bin/
+
+    # Perform NPM install
     - name: Install NPM packages
       run: npm ci
+
     - name: Download Build
       uses: actions/download-artifact@v4
       with:
         name: jco-build
         path: obj
+
     - name: Test LTS Node.js
       run: npm run test:lts
       if: matrix.node == '18.x' || matrix.node == '20.x'
+
     - name: Test Latest Node.js
-      run: npm run test
       if: matrix.node == 'latest'
+      env:
+        WEVAL_BIN_PATH: ${{ matrix.weval-bin-path }}
+      run: npm run test
 
   build-wasi-tests:
     name: WASI Test Generation

src/cmd/componentize.js

@@ -10,6 +10,7 @@ export async function componentize (jsSource, opts) {
   const source = await readFile(jsSource, 'utf8');
   const { component } = await componentizeFn(source, {
     enableAot: opts.aot,
+    wevalBin: opts.wevalBin,
     sourceName: basename(jsSource),
     witPath: resolve(opts.wit),
     worldName: opts.worldName,

src/jco.js

@@ -34,6 +34,7 @@ program.command('componentize')
   .requiredOption('-w, --wit <path>', 'WIT path to build with')
   .option('-n, --world-name <name>', 'WIT world to build')
   .option('--aot', 'Enable Weval AOT compilation of JS')
+  .option('--weval-bin <path>', 'Specify a custom weval binary to use')
   .addOption(new Option('-d, --disable <feature...>', 'disable WASI features').choices(['clocks', 'http', 'random', 'stdio', 'all']))
   // .addOption(new Option('-e, --enable <feature...>', 'enable WASI features').choices(['http']))
   .option('--preview2-adapter <adapter>', 'provide a custom preview2 adapter path')

test/cli.js

@@ -1,5 +1,5 @@
 import { resolve } from "node:path";
-import { execArgv } from "node:process";
+import { execArgv, env } from "node:process";
 import { deepStrictEqual, ok, strictEqual } from "node:assert";
 import {
   mkdir,
@@ -504,7 +504,7 @@ export async function cliTest(_fixtures) {
     });
 
     test("Componentize", async () => {
-      const { stdout, stderr } = await exec(
+      const args = [
         jcoPath,
         "componentize",
         "test/fixtures/componentize/source.js",
@@ -515,7 +515,12 @@ export async function cliTest(_fixtures) {
         "test/fixtures/componentize/source.wit",
         "-o",
         outFile
-      );
+      ];
+      if (env.WEVAL_BIN_PATH) {
+        args.push("--weval-bin", env.WEVAL_BIN_PATH);
+      }
+
+      const { stdout, stderr } = await exec(...args);
       strictEqual(stderr, "");
       {
         const { stderr } = await exec(