feat(experimental): partial rebuilds (#716)

quartz/plugins/emitters/folderPage.tsx

@@ -19,6 +19,7 @@ import { defaultListPageLayout, sharedPageComponents } from "../../../quartz.lay
 import { FolderContent } from "../../components"
 import { write } from "./helpers"
 import { i18n } from "../../i18n"
+import DepGraph from "../../depgraph"
 
 export const FolderPage: QuartzEmitterPlugin<Partial<FullPageLayout>> = (userOpts) => {
   const opts: FullPageLayout = {
@@ -37,6 +38,13 @@ export const FolderPage: QuartzEmitterPlugin<Partial<FullPageLayout>> = (userOpt
     getQuartzComponents() {
       return [Head, Header, Body, ...header, ...beforeBody, pageBody, ...left, ...right, Footer]
     },
+    async getDependencyGraph(ctx, content, _resources) {
+      // Example graph:
+      // nested/file.md --> nested/file.html
+      //          \-------> nested/index.html
+      // TODO implement
+      return new DepGraph<FilePath>()
+    },
     async emit(ctx, content, resources): Promise<FilePath[]> {
       const fps: FilePath[] = []
       const allFiles = content.map((c) => c[1].data)