refactor version patching extension

lib/antora/extensions/version-fix.js

@@ -1,39 +1,22 @@
-// https://gitlab.com/antora/antora/-/issues/132#note_712132072
 'use strict'
 
-
-module.exports.register = function({ config }) {
-    this.on('contentAggregated', ({ contentAggregate }) => {
-        contentAggregate.forEach(aggregate => {
-            if (aggregate.name === "" && aggregate.displayVersion === 5.6) {
-                aggregate.name = "ROOT";
-                aggregate.version = "5.6.0-RC1"
-                aggregate.startPage = "ROOT:index.adoc"
-                aggregate.displayVersion = `${aggregate.version}`
-                aggregate.prerelease = true
-            }
-            else if (aggregate.version === "5.6.1" &&
-                    aggregate.prerelease == "-SNAPSHOT") {
-                aggregate.version = "5.6.1"
-                aggregate.displayVersion = `${aggregate.version}`
-                aggregate.prerelease = true
-            }
-            else if (aggregate.prerelease && aggregate.prerelease != true) {
-                aggregate.version += aggregate.prerelease
-                aggregate.prerelease = true
-            }
-        })
+module.exports.register = function () {
+  this.once('contentAggregated', ({ contentAggregate }) => {
+    contentAggregate.forEach((componentVersionBucket) => {
+      if (componentVersionBucket.prerelease === 'true') componentVersionBucket.prerelease = true
+      if (!componentVersionBucket.name && componentVersionBucket.displayVersion === '5.6') {
+        componentVersionBucket.name = 'ROOT'
+        componentVersionBucket.version = '5.6.0-RC1'
+        delete componentVersionBucket.displayVersion
+        componentVersionBucket.prerelease = true
+      }
+      else if (componentVersionBucket.version === '5.6.1') {
+        delete componentVersionBucket.prerelease
+      }
+      else if (typeof componentVersionBucket.prerelease === 'string' && componentVersionBucket.prerelease !== '-SNAPSHOT') {
+        componentVersionBucket.version += componentVersionBucket.prerelease
+        componentVersionBucket.prerelease = true
+      }
     })
-}
-
-function out(args) {
-    console.log(JSON.stringify(args, no_data, 2));
-}
-
-
-function no_data(key, value) {
-    if (key == "data" || key == "files") {
-        return value ? "__data__" : value;
-    }
-    return value;
+  })
 }