npm run serve-pages (#251)

Co-authored-by: Ralf Handl <[email protected]>

_site/.gitignore

@@ -0,0 +1,2 @@
+*
+!.gitignore

lib/README.md

@@ -64,3 +64,15 @@ anywhere in this repository.
 If you use [Visual Studio Code](https://code.visualstudio.com/), you can [run this script directly from the explorer](https://code.visualstudio.com/docs/getstarted/tips-and-tricks#_run-npm-scripts-as-tasks-from-the-explorer).
 
 You should also install the recommended extension for [XML Language Support by Red Hat](https://marketplace.visualstudio.com/items?itemName=redhat.vscode-xml). It will validate the XML files against the official [OData CDSL XML schemas](https://github.com/oasis-tcs/odata-csdl-schemas/tree/main/schemas).
+
+`npm run pages` builds pages that can be deployed to github.io. To test these pages locally,
+run `npm run serve-pages`.
+
+Node.js packages with a dependency on `odata-vocabularies` can inherit the page building functionality
+by including the following in their `package.json`:
+```
+"scripts": {
+  "pages": "node -e \"require('odata-vocabularies/pages')\" \"<package name>\"",
+  "serve-pages": "node -e \"require('odata-vocabularies/serve-pages')\""
+}
+```

lib/serve-pages.js

@@ -0,0 +1,11 @@
+const express = require("express");
+
+var app = express()
+  .get("/", function (req, res) {
+    res.redirect("/odata-vocabularies/");
+  })
+  .use("/odata-vocabularies", express.static("_site"));
+
+app.listen(8080, function () {
+  console.log("Server running on http://localhost:8080");
+});