1 files changed, 48 insertions, 0 deletions
diff --git a/build/vnu-jar.js b/build/vnu-jar.js
new file mode 100644
index 0000000..6885015
--- /dev/null
+++ b/build/vnu-jar.js
@@ -0,0 +1,48 @@
+#!/usr/bin/env node
+
+/*!
+ * Script to run vnu-jar if Java is available.
+ * Copyright 2017-2022 The Bootstrap Authors
+ * Copyright 2017-2022 Twitter, Inc.
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
+ */
+
+'use strict'
+
+const { execFile, spawn } = require('child_process')
+const vnu = require('vnu-jar')
+
+execFile('java', ['-version'], (error, stdout, stderr) => {
+  if (error) {
+    console.error('Skipping vnu-jar test; Java is missing.')
+    return
+  }
+
+  const is32bitJava = !/64-Bit/.test(stderr)
+
+  // vnu-jar accepts multiple ignores joined with a `|`.
+  // Also note that the ignores are string regular expressions.
+  const ignores = [
+  ].join('|')
+
+  const args = [
+    '-jar',
+    `"${vnu}"`,
+    '--asciiquotes',
+    '--skip-non-html',
+    '--Werror',
+    `--filterpattern "${ignores}"`,
+    '_site/'
+  ]
+
+  // For the 32-bit Java we need to pass `-Xss512k`
+  if (is32bitJava) {
+    args.splice(0, 0, '-Xss512k')
+  }
+
+  return spawn('java', args, {
+    shell: true,
+    stdio: 'inherit'
+  })
+    .on('exit', process.exit)
+})