move to mjs

build/check-versions.mjs

@@ -0,0 +1,35 @@
+import semver from 'semver'
+import chalk from 'chalk'
+
+import packageConfig from '../package.json' with { type: 'json' }
+
+var versionRequirements = [
+  {
+    name: 'node',
+    currentVersion: semver.clean(process.version),
+    versionRequirement: packageConfig.engines.node
+  }
+]
+
+export default function () {
+  const warnings = []
+  for (let i = 0; i < versionRequirements.length; i++) {
+    const mod = versionRequirements[i]
+    if (!semver.satisfies(mod.currentVersion, mod.versionRequirement)) {
+      warnings.push(mod.name + ': ' +
+        chalk.red(mod.currentVersion) + ' should be ' +
+        chalk.green(mod.versionRequirement)
+      )
+    }
+  }
+
+  if (warnings.length) {
+    console.warn(chalk.yellow('\nTo use this template, you must update following to modules:\n'))
+    for (let i = 0; i < warnings.length; i++) {
+      const warning = warnings[i]
+      console.warn('  ' + warning)
+    }
+    console.warn()
+    process.exit(1)
+  }
+}