Refactor feed generating and file revisioning

tasks/generate_feed.js

@@ -0,0 +1,29 @@
+
+const { XMLBuilder, XMLValidator } = require('fast-xml-parser')
+const xmlFormat = require('xml-formatter')
+const { write } = require('../helpers')
+const feed = require('../generated/feed.json')
+
+const json2xmlOpts = {
+  attributeNamePrefix: '',
+  attributesGroupName: '__attr',
+  ignoreAttributes: false,
+  cdataPropName: '__cdata',
+  indentBy: '  '
+}
+const builder = new XMLBuilder(json2xmlOpts)
+
+// Load and adapt feed
+const outputXML = builder.build(feed)
+const validation = XMLValidator.validate(outputXML)
+if (validation) {
+  write(
+    'dist/feed.xml',
+    xmlFormat(outputXML, {
+      indentation: json2xmlOpts.indentBy,
+      collapseContent: true
+    })
+  )
+} else {
+  console.error(validation.err)
+}