WIP: Experimental version of using GraalVM to statically compile the XMLValidator to native binaries for macOS, Linux and Windows

.github/workflows/build-with-graalvm.yml

@@ -0,0 +1,42 @@
+name: GraalVM Native Image builds
+on: [push, pull_request]
+jobs:
+  build:
+    name: XMLValidator on ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [macos-latest, windows-latest, ubuntu-latest]
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: graalvm/setup-graalvm@v1
+        with:
+          java-version: '21'
+          distribution: 'graalvm'
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          native-image-job-reports: 'true'
+
+      - name: Build and run XMLValidator.java
+        run: |
+          cd support
+          javac XMLValidator.java
+          native-image -march=compatibility XMLValidator -o dist/XMLValidator-${{ matrix.os }}
+          stat dist/XMLValidator
+
+      - name: Commit and push binaries
+        run: |
+          git config --global user.name "github-actions[bot]"
+          git config --global user.email "41898282+github-actions[bot]@users.noreply.github.com"
+          git remote set-url origin https://x-access-token:${{ secrets.GITHUB_TOKEN }}@github.com/${{ github.repository }}
+          git pull
+          git add .
+          git commit -m "build: update binaries for ${{ matrix.os }}"
+          git push
+
+      - name: Upload binaries
+        uses: actions/upload-artifact@v2
+        with:
+          name: XMLValidator-${{ matrix.os }}
+          path: support/dist/XMLValidator*
+          if-no-files-found: error

.vscode/settings.json

@@ -0,0 +1,3 @@
+{
+  "editor.formatOnSave": false
+}

lib/validator.js

@@ -1,17 +1,27 @@
 const fs = require('fs');
-const os = require('os');
+
+// const os = require('os');
 const path = require('path');
 
 const which = require('which');
 
 const spawn = require('child_process').spawn;
 
-const CLASSPATH_SEPARATOR = os.platform() === 'win32' ? ';' : ':';
+// const CLASSPATH_SEPARATOR = os.platform() === 'win32' ? ';' : ':';
 
 const BASE_DIR = path.resolve(__dirname + '/../');
 
 const VALIDATOR = path.resolve(__dirname + '/../support/XMLValidator');
 
+const NATIVE_VALIDATOR_OS = process.platform === 'win32' ? 'windows' : process.platform === 'darwin' ? 'macos' : process.platform === 'linux' ? 'ubuntu' : undefined;
+
+if (!NATIVE_VALIDATOR_OS) {
+  throw new Error(`unsupported platform ${process.platform}`);
+}
+
+const NATIVE_VALIDATOR = `XMLValidator-${NATIVE_VALIDATOR_OS}-latest${NATIVE_VALIDATOR_OS === 'windows' ? '.exe' : ''}`;
+
+
 async function withJava(executable, debug) {
 
   if (debug) {
@@ -133,14 +143,21 @@ Validator.prototype.validateXML = async function(xml, schema) {
 
     return new Promise((resolve, reject) => {
 
-      const validator = spawn(java, [
-        '-Dfile.encoding=UTF-8',
-        '-classpath',
-        [ BASE_DIR, cwd ].join(CLASSPATH_SEPARATOR),
-        'support.XMLValidator',
-        input.file ? '-file=' + input.file : '-stdin',
-        '-schema=' + schema
-      ], { cwd: cwd });
+      // const validator = spawn(java, [
+      //   '-Dfile.encoding=UTF-8',
+      //   '-classpath',
+      //   [ BASE_DIR, cwd ].join(CLASSPATH_SEPARATOR),
+      //   'support.XMLValidator',
+      //   input.file ? '-file=' + input.file : '-stdin',
+      //   '-schema=' + schema
+      // ], { cwd: cwd });
+
+
+      const validator = spawn(
+        path.join(BASE_DIR, 'support', 'dist', NATIVE_VALIDATOR),
+        [ input.file ? '-file=' + input.file : '-stdin', '-schema=' + schema ],
+        { cwd: cwd }
+      );
 
       let result,
           code,

support/XMLValidator.java

@@ -1,4 +1,4 @@
-package support;
+// package support;
 
 import java.io.File;
 import java.io.FileInputStream;