chore: strip repository to provide a minimal reproduction of bun code splitting bug
Removes all server-side code, tests, CI pipelines, Docker config, extra CSS, and sidebar logic. Modifies `App.tsx` to just eagerly load and render `<Excalidraw />`. Modifies `package.json` to only contain a basic build command to reproduce the bug where Bun injects a dynamic chunk rather than the entrypoint chunk.
This commit is contained in:
ruinivist
+2
-505
@@ -1,512 +1,9 @@
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import "../node_modules/@excalidraw/excalidraw/dist/prod/index.css";
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import { Excalidraw } from "@excalidraw/excalidraw";
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import type {
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AppState,
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BinaryFiles,
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ExcalidrawInitialDataState,
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} from "@excalidraw/excalidraw/types";
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import { useCallback, useEffect, useMemo, useRef, useState } from "react";
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import { DEFAULT_TITLE, type DrawingMeta, type ScenePayload } from "./shared";
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type DrawingResponse = DrawingMeta & ScenePayload;
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const EXCALIDRAW_THEME_TOKEN_MAP = [
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["--island-bg-color", "--app-island-bg"],
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["--sidebar-bg-color", "--app-sidebar-bg"],
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["--sidebar-border-color", "--app-sidebar-border"],
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["--sidebar-shadow", "--app-sidebar-shadow"],
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["--color-surface-lowest", "--app-surface-lowest"],
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["--color-surface-low", "--app-surface-low"],
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["--color-surface-primary-container", "--app-selected-bg"],
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["--color-on-surface", "--app-text-color"],
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["--color-on-primary-container", "--app-selected-text-color"],
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["--color-disabled", "--app-disabled-color"],
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["--input-bg-color", "--app-input-bg"],
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["--input-border-color", "--app-input-border"],
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["--input-label-color", "--app-input-color"],
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["--default-border-color", "--app-button-border"],
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["--button-hover-bg", "--app-button-hover-bg"],
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["--button-active-bg", "--app-button-active-bg"],
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["--button-active-border", "--app-button-active-border"],
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["--overlay-bg-color", "--app-overlay-bg"],
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] as const;
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function pathToId(pathname = window.location.pathname): string | null {
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const match = pathname.match(/^\/d\/([^/]+)$/);
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return match?.[1] ?? null;
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}
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function sortDrawings(drawings: DrawingMeta[]): DrawingMeta[] {
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return [...drawings].sort((a, b) => b.updatedAt.localeCompare(a.updatedAt));
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}
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function replaceMeta(drawings: DrawingMeta[], drawing: DrawingMeta): DrawingMeta[] {
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const filtered = drawings.filter((item) => item.id !== drawing.id);
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return sortDrawings([drawing, ...filtered]);
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}
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function sceneToInitialData(scene: ScenePayload): ExcalidrawInitialDataState {
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return scene as ExcalidrawInitialDataState;
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}
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function sceneFromEditor(
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elements: readonly unknown[],
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appState: AppState,
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files: BinaryFiles,
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): ScenePayload {
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return {
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elements: [...elements],
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appState: appState as unknown as Record<string, unknown>,
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files: files as unknown as Record<string, unknown>,
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};
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}
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async function requestJson<T>(url: string, init?: RequestInit): Promise<T> {
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const response = await fetch(url, {
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...init,
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headers: {
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...(init?.body ? { "content-type": "application/json" } : {}),
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...init?.headers,
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},
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});
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const body = (await response.json()) as T & { error?: string };
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if (!response.ok) {
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throw new Error(body.error ?? `Request failed: ${response.status}`);
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}
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return body;
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}
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function DrawerIcon() {
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return (
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<svg viewBox="0 0 24 24" aria-hidden="true">
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<rect x="3.5" y="5" width="17" height="14" rx="2.5" fill="none" stroke="currentColor" strokeWidth="1.8" />
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<path d="M9 5v14" fill="none" stroke="currentColor" strokeWidth="1.8" strokeLinecap="round" />
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<path d="M5.75 9h1.5M5.75 12h1.5M5.75 15h1.5" fill="none" stroke="currentColor" strokeWidth="1.8" strokeLinecap="round" />
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</svg>
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);
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}
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export function App() {
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const [drawings, setDrawings] = useState<DrawingMeta[]>([]);
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const [activeId, setActiveId] = useState<string | null>(pathToId());
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const [activeTitle, setActiveTitle] = useState(DEFAULT_TITLE);
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const [scene, setScene] = useState<ScenePayload | null>(null);
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const [loading, setLoading] = useState(true);
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const [error, setError] = useState<string | null>(null);
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const [isSidebarOpen, setIsSidebarOpen] = useState(false);
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const currentIdRef = useRef<string | null>(activeId);
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const currentTitleRef = useRef(activeTitle);
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const latestSceneRef = useRef<ScenePayload | null>(null);
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const ignoreChangeRef = useRef(false);
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const appShellRef = useRef<HTMLDivElement | null>(null);
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const timeoutRef = useRef<number | null>(null);
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const inFlightSaveRef = useRef<Promise<void> | null>(null);
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const loadVersionRef = useRef(0);
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const themeSyncFrameRef = useRef<number | null>(null);
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const activeDrawing = useMemo(
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() => drawings.find((drawing) => drawing.id === activeId) ?? null,
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[activeId, drawings],
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);
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const refreshList = useCallback(async () => {
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const list = await requestJson<DrawingMeta[]>("/api/drawings", { method: "GET" });
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setDrawings(sortDrawings(list));
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return list;
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}, []);
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const saveScene = useCallback(async () => {
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const drawingId = currentIdRef.current;
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const nextScene = latestSceneRef.current;
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if (!drawingId || !nextScene) {
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return;
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}
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setError(null);
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const promise = requestJson<{ ok: true; drawing: DrawingMeta }>(`/api/drawings/${drawingId}`, {
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method: "PUT",
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body: JSON.stringify(nextScene),
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})
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.then((body) => {
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setDrawings((current) => replaceMeta(current, body.drawing));
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})
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.catch((saveError: unknown) => {
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setError(saveError instanceof Error ? saveError.message : "Save failed");
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throw saveError;
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})
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.finally(() => {
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inFlightSaveRef.current = null;
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});
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inFlightSaveRef.current = promise;
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await promise;
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}, []);
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const flushPendingSave = useCallback(async () => {
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if (timeoutRef.current !== null) {
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clearTimeout(timeoutRef.current);
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timeoutRef.current = null;
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await saveScene();
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return;
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}
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if (inFlightSaveRef.current) {
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await inFlightSaveRef.current;
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}
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}, [saveScene]);
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const scheduleSave = useCallback(() => {
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if (timeoutRef.current !== null) {
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clearTimeout(timeoutRef.current);
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}
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timeoutRef.current = window.setTimeout(() => {
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timeoutRef.current = null;
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void saveScene();
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}, 1500);
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}, [saveScene]);
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const loadDrawing = useCallback(
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async (drawingId: string) => {
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const version = ++loadVersionRef.current;
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setLoading(true);
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setError(null);
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try {
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const [list, drawing] = await Promise.all([
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requestJson<DrawingMeta[]>("/api/drawings", { method: "GET" }),
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requestJson<DrawingResponse>(`/api/drawings/${drawingId}`, { method: "GET" }),
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]);
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if (version !== loadVersionRef.current) {
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return;
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}
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const nextScene = {
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elements: drawing.elements,
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appState: drawing.appState,
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files: drawing.files,
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};
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ignoreChangeRef.current = true;
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currentIdRef.current = drawing.id;
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currentTitleRef.current = drawing.title;
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latestSceneRef.current = nextScene;
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setDrawings(sortDrawings(list));
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setActiveId(drawing.id);
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setActiveTitle(drawing.title);
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setScene(nextScene);
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} catch (loadError) {
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const list = await refreshList();
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if (list.length === 0) {
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const created = await requestJson<DrawingResponse>("/api/drawings", { method: "POST" });
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window.history.replaceState(null, "", `/d/${created.id}`);
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await loadDrawing(created.id);
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return;
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}
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const fallback = list[0];
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if (fallback && fallback.id !== drawingId) {
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window.history.replaceState(null, "", `/d/${fallback.id}`);
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await loadDrawing(fallback.id);
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return;
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}
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setError(loadError instanceof Error ? loadError.message : "Failed to load drawing");
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} finally {
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if (version === loadVersionRef.current) {
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setLoading(false);
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}
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}
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},
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[refreshList],
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);
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const navigateToDrawing = useCallback(
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async (drawingId: string, options?: { replace?: boolean; flush?: boolean }) => {
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const replace = options?.replace ?? false;
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const flush = options?.flush ?? true;
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if (drawingId === currentIdRef.current && latestSceneRef.current) {
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if (replace) {
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window.history.replaceState(null, "", `/d/${drawingId}`);
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}
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return;
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}
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if (flush) {
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await flushPendingSave();
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}
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if (replace) {
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window.history.replaceState(null, "", `/d/${drawingId}`);
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} else {
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window.history.pushState(null, "", `/d/${drawingId}`);
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}
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await loadDrawing(drawingId);
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},
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[flushPendingSave, loadDrawing],
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);
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const createDrawing = useCallback(async () => {
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await flushPendingSave();
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const created = await requestJson<DrawingResponse>("/api/drawings", { method: "POST" });
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await navigateToDrawing(created.id, { flush: false });
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}, [flushPendingSave, navigateToDrawing]);
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const deleteDrawing = useCallback(
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async (drawingId: string) => {
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if (!window.confirm("Delete this drawing?")) {
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return;
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}
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if (drawingId === currentIdRef.current) {
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await flushPendingSave();
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}
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const response = await requestJson<{ ok: true; nextId: string | null }>(`/api/drawings/${drawingId}`, {
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method: "DELETE",
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});
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if (drawingId === currentIdRef.current && response.nextId) {
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await navigateToDrawing(response.nextId, { replace: true, flush: false });
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} else {
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await refreshList();
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}
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},
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[flushPendingSave, navigateToDrawing, refreshList],
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);
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const handleTitleSubmit = useCallback(async () => {
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const drawingId = currentIdRef.current;
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if (!drawingId) {
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return;
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}
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try {
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const body = await requestJson<{ ok: true; drawing: DrawingMeta }>(`/api/drawings/${drawingId}`, {
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method: "PUT",
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body: JSON.stringify({ title: currentTitleRef.current }),
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});
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currentTitleRef.current = body.drawing.title;
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setActiveTitle(body.drawing.title);
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setDrawings((current) => replaceMeta(current, body.drawing));
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} catch (renameError) {
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setError(renameError instanceof Error ? renameError.message : "Rename failed");
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}
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}, []);
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const syncThemeTokens = useCallback(() => {
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const appShell = appShellRef.current;
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const excalidrawRoot = appShell?.querySelector<HTMLElement>(".excalidraw");
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if (!appShell || !excalidrawRoot) {
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return;
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}
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const computedStyles = window.getComputedStyle(excalidrawRoot);
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for (const [sourceToken, targetToken] of EXCALIDRAW_THEME_TOKEN_MAP) {
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const value = computedStyles.getPropertyValue(sourceToken).trim();
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if (value) {
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appShell.style.setProperty(targetToken, value);
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}
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}
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}, []);
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const scheduleThemeTokenSync = useCallback(() => {
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if (themeSyncFrameRef.current !== null) {
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window.cancelAnimationFrame(themeSyncFrameRef.current);
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}
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themeSyncFrameRef.current = window.requestAnimationFrame(() => {
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themeSyncFrameRef.current = null;
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syncThemeTokens();
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});
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}, [syncThemeTokens]);
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useEffect(() => {
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const currentPathId = pathToId();
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if (currentPathId) {
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void loadDrawing(currentPathId);
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} else {
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window.location.replace("/");
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}
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const onPopState = () => {
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const nextId = pathToId();
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if (nextId) {
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void navigateToDrawing(nextId, { replace: true, flush: true });
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}
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};
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window.addEventListener("popstate", onPopState);
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return () => {
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window.removeEventListener("popstate", onPopState);
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};
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}, [loadDrawing, navigateToDrawing]);
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useEffect(() => {
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return () => {
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if (timeoutRef.current !== null) {
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clearTimeout(timeoutRef.current);
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}
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if (themeSyncFrameRef.current !== null) {
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window.cancelAnimationFrame(themeSyncFrameRef.current);
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}
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};
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}, []);
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useEffect(() => {
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if (!scene || loading) {
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return;
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}
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scheduleThemeTokenSync();
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}, [activeId, loading, scene, scheduleThemeTokenSync]);
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useEffect(() => {
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if (!isSidebarOpen) {
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return;
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}
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const onKeyDown = (event: KeyboardEvent) => {
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if (event.key === "Escape") {
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setIsSidebarOpen(false);
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}
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};
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window.addEventListener("keydown", onKeyDown);
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return () => {
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window.removeEventListener("keydown", onKeyDown);
|
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};
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}, [isSidebarOpen]);
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const openSidebar = useCallback(() => {
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setIsSidebarOpen(true);
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}, []);
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const closeSidebar = useCallback(() => {
|
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setIsSidebarOpen(false);
|
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}, []);
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|
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const handleSelectDrawing = useCallback(
|
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async (drawingId: string) => {
|
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setIsSidebarOpen(false);
|
||||
await navigateToDrawing(drawingId);
|
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},
|
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[navigateToDrawing],
|
||||
);
|
||||
|
||||
const handleCreateDrawing = useCallback(async () => {
|
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setIsSidebarOpen(false);
|
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await createDrawing();
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}, [createDrawing]);
|
||||
|
||||
return (
|
||||
<div className="app-shell" ref={appShellRef}>
|
||||
<main className="editor-shell">
|
||||
<div className="app-actions">
|
||||
<button
|
||||
type="button"
|
||||
className="secondary-button app-actions-toggle"
|
||||
onClick={openSidebar}
|
||||
aria-label="Open drawings"
|
||||
>
|
||||
<DrawerIcon />
|
||||
<span className="sr-only">Open drawings</span>
|
||||
</button>
|
||||
</div>
|
||||
|
||||
{loading || !scene ? (
|
||||
<div className="editor-loading">{error ?? "Loading..."}</div>
|
||||
) : (
|
||||
<div className="editor-frame">
|
||||
<Excalidraw
|
||||
key={activeDrawing?.id ?? activeId}
|
||||
initialData={sceneToInitialData(scene)}
|
||||
onChange={(elements, appState, files) => {
|
||||
const nextScene = sceneFromEditor(elements, appState, files);
|
||||
latestSceneRef.current = nextScene;
|
||||
scheduleThemeTokenSync();
|
||||
|
||||
if (ignoreChangeRef.current) {
|
||||
ignoreChangeRef.current = false;
|
||||
return;
|
||||
}
|
||||
|
||||
scheduleSave();
|
||||
}}
|
||||
/>
|
||||
</div>
|
||||
)}
|
||||
</main>
|
||||
<div
|
||||
className={isSidebarOpen ? "sidebar-backdrop sidebar-backdrop-open" : "sidebar-backdrop"}
|
||||
onClick={closeSidebar}
|
||||
aria-hidden={!isSidebarOpen}
|
||||
/>
|
||||
<aside className={isSidebarOpen ? "sidebar sidebar-open" : "sidebar"} aria-hidden={!isSidebarOpen}>
|
||||
<div className="sidebar-header">
|
||||
<h1>excali-box</h1>
|
||||
<div className="sidebar-actions">
|
||||
<button type="button" className="primary-button" onClick={() => void handleCreateDrawing()}>
|
||||
New
|
||||
</button>
|
||||
<button type="button" className="icon-button" onClick={closeSidebar} aria-label="Close drawings">
|
||||
×
|
||||
</button>
|
||||
</div>
|
||||
</div>
|
||||
<div className="drawing-list">
|
||||
{drawings.map((drawing) => (
|
||||
<div
|
||||
key={drawing.id}
|
||||
className={drawing.id === activeId ? "drawing-item drawing-item-active" : "drawing-item"}
|
||||
>
|
||||
{drawing.id === activeId ? (
|
||||
<div className="drawing-link">
|
||||
<input
|
||||
className="title-input"
|
||||
value={activeTitle}
|
||||
onChange={(event) => {
|
||||
currentTitleRef.current = event.target.value;
|
||||
setActiveTitle(event.target.value);
|
||||
}}
|
||||
onBlur={() => void handleTitleSubmit()}
|
||||
onKeyDown={(event) => {
|
||||
if (event.key === "Enter") {
|
||||
event.currentTarget.blur();
|
||||
}
|
||||
}}
|
||||
/>
|
||||
</div>
|
||||
) : (
|
||||
<button
|
||||
type="button"
|
||||
className="drawing-link"
|
||||
onClick={() => void handleSelectDrawing(drawing.id)}
|
||||
>
|
||||
<span className="drawing-title">{drawing.title}</span>
|
||||
</button>
|
||||
)}
|
||||
<button
|
||||
type="button"
|
||||
className="icon-button"
|
||||
onClick={() => void deleteDrawing(drawing.id)}
|
||||
aria-label={`Delete ${drawing.title}`}
|
||||
>
|
||||
×
|
||||
</button>
|
||||
</div>
|
||||
))}
|
||||
</div>
|
||||
</aside>
|
||||
<div style={{ height: "100vh" }}>
|
||||
<Excalidraw />
|
||||
</div>
|
||||
);
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user