Add script to generate npm publish script

scripts/generate-publish-script.js

@@ -0,0 +1,38 @@
+#!/usr/bin/env node
+
+const path = require("path");
+const fs = require("fs-extra");
+const should = require("should");
+
+function generateScript() {
+    return new Promise((resolve, reject) => {
+        const packages = [
+            "node-red-util",
+            "node-red-runtime",
+            "node-red-registry",
+            "node-red-nodes",
+            "node-red-editor-client",
+            "node-red-editor-api",
+            "node-red"
+        ];
+        const rootPackage = require(path.join(__dirname,"..","package.json"));
+        const version = rootPackage.version;
+
+        const tagArg = /-/.test(version) ? "--tag next" : ""
+
+        const lines = [];
+
+        packages.forEach(name => {
+            lines.push(`npm publish ${name}-${version}.tgz ${tagArg}\n`);
+        })
+        resolve(lines.join(""))
+    });
+}
+
+if (require.main === module) {
+    generateScript().then(output => {
+        console.log(output);
+    });
+} else {
+    module.exports = generateScript;
+}