fix: filter out new keys from legacy JSON generator

src/generators/legacy-json-all/index.mjs

@@ -3,6 +3,8 @@
 import { writeFile } from 'node:fs/promises';
 import { join } from 'node:path';
 
+import { legacyToJSON } from '../../utils/generators.mjs';
+
 /**
  * This generator consolidates data from the `legacy-json` generator into a single
  * JSON file (`all.json`).
@@ -83,10 +85,7 @@ export default {
     }
 
     if (output) {
-      await writeFile(
-        join(output, 'all.json'),
-        JSON.stringify(generatedValue, null, 2)
-      );
+      await writeFile(join(output, 'all.json'), legacyToJSON(generatedValue));
     }
 
     return generatedValue;

src/generators/legacy-json/index.mjs

@@ -4,7 +4,7 @@ import { writeFile } from 'node:fs/promises';
 import { join } from 'node:path';
 
 import { createSectionBuilder } from './utils/buildSection.mjs';
-import { groupNodesByModule } from '../../utils/generators.mjs';
+import { groupNodesByModule, legacyToJSON } from '../../utils/generators.mjs';
 
 const buildSection = createSectionBuilder();
 
@@ -78,7 +78,7 @@ export default {
         for (const section of chunkResult) {
           const out = join(output, `${section.api}.json`);
 
-          await writeFile(out, JSON.stringify(section, null, 2));
+          await writeFile(out, legacyToJSON(section));
         }
       }
 

src/utils/generators.mjs

@@ -109,3 +109,63 @@ export const sortChanges = (changes, key = 'version') => {
  */
 export const leftHandAssign = (target, source) =>
   Object.keys(source).forEach(k => k in target || (target[k] = source[k]));
+
+/**
+ * Transforms an object to JSON output consistent with the JSON version.
+ * @param {Object} section - The source object
+ * @param section.api
+ * @param section.type
+ * @param section.source
+ * @param section.introduced_in
+ * @param section.meta
+ * @param section.stability
+ * @param section.stabilityText
+ * @param section.classes
+ * @param section.methods
+ * @param section.properties
+ * @param section.miscs
+ * @param section.modules
+ * @param section.globals
+ * @returns {string} - The JSON output
+ */
+export const legacyToJSON = ({
+  api,
+  type,
+  source,
+  introduced_in,
+  meta,
+  stability,
+  stabilityText,
+  classes,
+  methods,
+  properties,
+  miscs,
+  modules,
+  globals,
+}) =>
+  JSON.stringify(
+    {
+      type,
+      source,
+      introduced_in,
+      ...(api === 'report'
+        ? {
+            stability,
+            stabilityText,
+            meta,
+          }
+        : {
+            meta,
+            stability,
+            stabilityText,
+          }),
+      classes,
+      methods,
+      properties,
+      miscs,
+      ...(api === 'index' ? undefined : { modules }),
+      globals,
+    },
+    null,
+    2
+  );