chore(gatsby): Convert page-data-stats reducer to TypeScript (#24082)

packages/gatsby/src/redux/reducers/index.js

@@ -12,6 +12,7 @@ import { webpackCompilationHashReducer } from "./webpack-compilation-hash"
 import { reducer as logReducer } from "gatsby-cli/lib/reporter/redux/reducer"
 import { lastAction } from "./last-action"
 import { jobsV2Reducer } from "./jobsv2"
+import { pageDataStatsReducer } from "./page-data-stats"
 import { componentsReducer } from "./components"
 import { componentDataDependenciesReducer } from "./component-data-dependencies"
 import { babelrcReducer } from "./babelrc"
@@ -44,6 +45,6 @@ module.exports = {
   themes: themesReducer,
   logs: logReducer,
   inferenceMetadata: require(`./inference-metadata`),
-  pageDataStats: require(`./page-data-stats`),
+  pageDataStats: pageDataStatsReducer,
   pageData: pageDataReducer,
 }

packages/gatsby/src/redux/reducers/page-data-stats.ts

@@ -0,0 +1,14 @@
+import { IGatsbyState, ActionsUnion } from "./../types"
+
+export const pageDataStatsReducer = (
+  state: IGatsbyState["pageDataStats"] = new Map(),
+  action: ActionsUnion
+): IGatsbyState["pageDataStats"] => {
+  switch (action.type) {
+    case `ADD_PAGE_DATA_STATS`:
+      state.set(action.payload.filePath, action.payload.size)
+      return state
+    default:
+      return state
+  }
+}

packages/gatsby/src/redux/types.ts

@@ -275,6 +275,7 @@ export type ActionsUnion =
   | ICreateJobV2Action
   | IEndJobV2Action
   | IRemoveStaleJobV2Action
+  | IAddPageDataStatsAction
   | IRemoveTemplateComponentAction
   | ISetBabelPluginAction
   | ISetBabelPresetAction
@@ -587,3 +588,11 @@ export interface IDeleteNodesAction {
   type: `DELETE_NODES`
   payload: Identifier[]
 }
+
+export interface IAddPageDataStatsAction {
+  type: `ADD_PAGE_DATA_STATS`
+  payload: {
+    filePath: SystemPath
+    size: number
+  }
+}