eugeneo17 commented on code in PR #43303:
URL: https://github.com/apache/superset/pull/43303#discussion_r3872658672


##########
superset-frontend/scripts/gen-qc-registry.mjs:
##########
@@ -0,0 +1,216 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+// Deterministic, re-runnable codegen: maps every plugin `buildQuery` module 
to the
+// viz_type key(s) it is registered under, and emits registry.generated.ts 
consumed
+// by entry.ts. Join: buildQuery module  <- (index.ts that imports it) -> 
plugin class
+// name -> MainPreset `.configure({ key: VizType.X })` -> VizType enum string.
+// A single builder legitimately maps to several keys (e.g. echarts_timeseries 
+ _line/_bar/...).
+import { readFileSync, writeFileSync, readdirSync, statSync, existsSync } from 
'node:fs';
+import path from 'node:path';
+import { fileURLToPath } from 'node:url';
+
+const FE = path.resolve(path.dirname(fileURLToPath(import.meta.url)), '..');
+const PLUGINS = path.join(FE, 'plugins');
+const OUT = path.join(FE, 'src', 'backend-querycontext', 
'registry.generated.ts');
+
+// --- 1. VizType enum: EnumName -> 'string_value' ---
+const vizTypeSrc = readFileSync(
+  path.join(FE, 'packages/superset-ui-core/src/chart/types/VizType.ts'),
+  'utf8',
+);
+const VIZ_ENUM = {};
+for (const m of vizTypeSrc.matchAll(/(\w+)\s*=\s*['"]([\w-]+)['"]/g)) 
VIZ_ENUM[m[1]] = m[2];
+
+// --- 2. MainPreset: ClassName -> viz string ---
+const mainPreset = readFileSync(
+  path.join(FE, 'src/visualizations/presets/MainPreset.js'),

Review Comment:
   Good catch, this is a real bug. The path is stale: the generator should read 
`MainPreset.ts`, not `.js`, so regeneration currently exits with ENOENT and the 
registry never updates. I will point it at the `.ts` source (the` import/new 
X().configure({ key: VizType.X }`) regexes work unchanged on the TS file) and 
add a smoke check to CI that runs the generator and fails if 
`registry.generated.ts` is out of date, so this cannot silently drift again.



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