mirror of
https://github.com/misskey-dev/misskey.git
synced 2026-07-25 22:34:49 +02:00
528 lines
19 KiB
TypeScript
528 lines
19 KiB
TypeScript
/*
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* SPDX-FileCopyrightText: syuilo and misskey-project
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* SPDX-License-Identifier: AGPL-3.0-only
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*/
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import { promises as fs } from 'node:fs';
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import path from 'node:path';
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import * as util from './utility.mts';
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const locale = 'ja-JP';
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type Manifest = Record<string, { file?: string; src?: string; name?: string; isEntry?: boolean; imports?: string[] }>;
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const stableNamedChunks = new Set(['vue', 'i18n']);
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type FileEntry = {
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comparisonKey: string | null;
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displayName: string;
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file: string;
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manifestKeys: string[];
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size: number;
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};
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type CollectedReport = {
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manifest: Manifest;
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chunks: FileEntry[];
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comparableChunks: Record<string, FileEntry>;
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chunksByManifestKey: Record<string, FileEntry>;
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startupFiles: string[];
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};
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function entryDisplayName(entry: FileEntry) {
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if (!entry) return '';
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return entry.displayName || entry.file;
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}
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function findEntryKey(manifest: Manifest) {
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const entries = Object.entries(manifest);
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return entries.find(([key, chunk]) => key === 'src/_boot_.ts' || chunk.src === 'src/_boot_.ts')?.[0]
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?? entries.find(([, chunk]) => chunk.name === 'entry' && chunk.isEntry)?.[0]
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?? entries.find(([, chunk]) => chunk.isEntry)?.[0]
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?? null;
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}
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function stableChunkKey(chunk: Manifest[string]) {
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if (chunk.src != null) return `src:${util.normalizePath(chunk.src)}`;
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if (chunk.name != null && stableNamedChunks.has(chunk.name)) return `named:${chunk.name}`;
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return null;
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}
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function collectStartupManifestKeys(manifest: Manifest) {
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const entryKey = findEntryKey(manifest);
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const keys = new Set<string>();
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if (entryKey == null) throw new Error('Unable to find frontend startup entry in Vite manifest.');
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function visit(key: string, importedBy?: string) {
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if (keys.has(key)) return;
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const chunk = manifest[key];
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const importContext = importedBy == null ? '' : ` imported by "${importedBy}"`;
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if (chunk == null) throw new Error(`Startup manifest key "${key}"${importContext} is missing.`);
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if (chunk.file == null || chunk.file.length === 0) throw new Error(`Startup manifest key "${key}"${importContext} has no output file.`);
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if (!chunk.file.endsWith('.js')) throw new Error(`Startup manifest key "${key}"${importContext} resolves to non-JavaScript output "${chunk.file}".`);
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keys.add(key);
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for (const importKey of chunk.imports ?? []) visit(importKey, key);
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}
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visit(entryKey);
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return keys;
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}
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async function resolveBuiltFile(outDir: string, file: string) {
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if (file.startsWith('scripts/')) {
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const localizedFile = file.slice('scripts/'.length);
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const localizedPath = path.join(outDir, locale, localizedFile);
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if (await util.fileExists(localizedPath)) {
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return {
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absolutePath: localizedPath,
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relativePath: `${locale}/${localizedFile}`,
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};
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}
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throw new Error(`Expected ${locale} localized chunk for ${file}, but ${localizedPath} was not found.`);
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}
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return {
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absolutePath: path.join(outDir, file),
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relativePath: file,
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};
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}
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async function collectReport(repoDir: string): Promise<CollectedReport> {
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const outDir = path.join(repoDir, 'built/_frontend_vite_');
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const manifestPath = path.join(outDir, 'manifest.json');
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const manifest = JSON.parse(await fs.readFile(manifestPath, 'utf8')) as Manifest;
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const chunksByFile = new Map<string, FileEntry>();
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const comparableChunks = new Map<string, FileEntry>();
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const chunksByManifestKey = new Map<string, FileEntry>();
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for (const [manifestKey, chunk] of Object.entries(manifest)) {
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if (!chunk.file?.endsWith('.js')) continue;
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const builtFile = await resolveBuiltFile(outDir, chunk.file);
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const comparisonKey = stableChunkKey(chunk);
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let entry = chunksByFile.get(builtFile.relativePath);
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if (entry == null) {
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entry = {
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comparisonKey,
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displayName: chunk.src ?? chunk.name ?? manifestKey,
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file: builtFile.relativePath,
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manifestKeys: [manifestKey],
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size: await util.fileSize(builtFile.absolutePath),
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};
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chunksByFile.set(entry.file, entry);
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} else if (entry.comparisonKey !== comparisonKey) {
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throw new Error(`Conflicting identities for ${entry.file}`);
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} else {
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entry.manifestKeys.push(manifestKey);
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}
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chunksByManifestKey.set(manifestKey, entry);
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if (comparisonKey != null) {
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const existing = comparableChunks.get(comparisonKey);
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if (existing != null && existing.file !== entry.file) {
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throw new Error(`Duplicate stable chunk key "${comparisonKey}": ${existing.file}, ${entry.file}`);
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}
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comparableChunks.set(comparisonKey, entry);
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}
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}
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const localeDir = path.join(outDir, locale);
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if (await util.fileExists(localeDir)) {
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for await (const fullPath of util.traverseDirectory(localeDir)) {
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if (!fullPath.endsWith('.js')) continue;
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const relativePath = util.normalizePath(path.relative(outDir, fullPath));
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if (chunksByFile.has(relativePath)) continue;
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chunksByFile.set(relativePath, {
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comparisonKey: null,
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displayName: relativePath,
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file: relativePath,
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manifestKeys: [],
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size: await util.fileSize(fullPath),
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});
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}
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}
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const startupFiles = new Set<string>();
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for (const manifestKey of collectStartupManifestKeys(manifest)) {
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const entry = chunksByManifestKey.get(manifestKey);
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if (entry != null) startupFiles.add(entry.file);
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}
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return {
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manifest,
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chunks: [...chunksByFile.values()],
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comparableChunks: Object.fromEntries(comparableChunks),
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chunksByManifestKey: Object.fromEntries(chunksByManifestKey),
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startupFiles: [...startupFiles],
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};
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}
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type VisualizerReport = {
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nodeParts?: Record<string, {
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renderedLength: number;
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gzipLength: number;
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brotliLength: number;
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}>;
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nodeMetas?: Record<string, {
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id: string;
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isEntry?: boolean;
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isExternal?: boolean;
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importedBy?: string[];
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imported?: { id: string; dynamic?: boolean }[];
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moduleParts?: Record<string, string>;
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renderedLength: number;
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gzipLength: number;
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brotliLength: number;
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}>;
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options?: Record<string, unknown>;
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};
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function collectVisualizerReport(data: VisualizerReport) {
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const nodeParts = data.nodeParts ?? {};
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const nodeMetas = Object.values(data.nodeMetas ?? {});
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const moduleRows = [];
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const bundleMap = new Map();
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for (const meta of nodeMetas) {
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const row = {
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id: meta.id,
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bundles: 0,
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renderedLength: 0,
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gzipLength: 0,
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brotliLength: 0,
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importedByCount: meta.importedBy?.length ?? 0,
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importedCount: meta.imported?.length ?? 0,
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};
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for (const [bundleId, partUid] of Object.entries(meta.moduleParts ?? {})) {
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const part = nodeParts[partUid];
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if (part == null) continue;
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row.bundles += 1;
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row.renderedLength += part.renderedLength;
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row.gzipLength += part.gzipLength;
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row.brotliLength += part.brotliLength;
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const bundle = bundleMap.get(bundleId) ?? {
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id: bundleId,
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modules: 0,
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renderedLength: 0,
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gzipLength: 0,
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brotliLength: 0,
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};
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bundle.modules += 1;
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bundle.renderedLength += part.renderedLength;
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bundle.gzipLength += part.gzipLength;
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bundle.brotliLength += part.brotliLength;
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bundleMap.set(bundleId, bundle);
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}
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if (row.bundles > 0) {
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moduleRows.push(row);
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}
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}
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let staticImports = 0;
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let dynamicImports = 0;
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for (const meta of nodeMetas) {
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for (const imported of meta.imported ?? []) {
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if (imported.dynamic) {
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dynamicImports += 1;
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} else {
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staticImports += 1;
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}
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}
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}
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const bundleRows = [...bundleMap.values()].sort((a, b) => b.renderedLength - a.renderedLength);
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const hotModules = [...moduleRows].sort((a, b) => b.renderedLength - a.renderedLength);
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const totalRendered = moduleRows.reduce((sum, row) => sum + row.renderedLength, 0);
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const totalGzip = moduleRows.reduce((sum, row) => sum + row.gzipLength, 0);
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const totalBrotli = moduleRows.reduce((sum, row) => sum + row.brotliLength, 0);
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return {
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options: data.options ?? {},
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summary: {
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bundles: bundleRows.length,
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modules: moduleRows.length,
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entries: nodeMetas.filter((meta) => meta.isEntry).length,
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externals: nodeMetas.filter((meta) => meta.isExternal).length,
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staticImports,
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dynamicImports,
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},
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metrics: {
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renderedLength: totalRendered,
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gzipLength: totalGzip,
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brotliLength: totalBrotli,
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},
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hotModules,
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};
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}
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function renderVisualizerSummaryTable(before: ReturnType<typeof collectVisualizerReport>, after: ReturnType<typeof collectVisualizerReport>) {
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const summary = [
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'bundles',
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'modules',
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'entries',
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//'externals',
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'staticImports',
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'dynamicImports',
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] as const;
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const metrics = [
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'renderedLength',
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'gzipLength',
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'brotliLength',
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] as const;
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return [
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`<table>`,
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`<thead>`,
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`<tr>`,
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`<th rowspan="2"></th>`,
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`<th rowspan="2">Bundles</th>`,
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`<th rowspan="2">Modules</th>`,
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`<th rowspan="2">Entries</th>`,
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`<th colspan="2">Imports</th>`,
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`<th colspan="3">Size</th>`,
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`</tr>`,
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`<tr>`,
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`<th>Static</th>`,
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`<th>Dynamic</th>`,
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`<th>Rendered</th>`,
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`<th>Gzip</th>`,
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`<th>Brotli</th>`,
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`</tr>`,
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`</thead>`,
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`<tbody>`,
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`<tr>`,
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`<th><b>Before</b></th>`,
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...summary.map((key) => `<td>${util.formatNumber(before.summary[key])}</td>`),
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...metrics.map((key) => `<td>${util.formatBytes(before.metrics[key])}</td>`),
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`</tr>`,
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`<tr>`,
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`<th><b>After</b></th>`,
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...summary.map((key) => `<td>${util.formatNumber(after.summary[key])}</td>`),
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...metrics.map((key) => `<td>${util.formatBytes(after.metrics[key])}</td>`),
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`</tr>`,
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`<tr><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr>`,
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`<tr>`,
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`<th><b>Δ</b></th>`,
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...summary.map((key) => `<td>${util.calcAndFormatDeltaNumber(before.summary[key], after.summary[key], 0)}</td>`),
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...metrics.map((key) => `<td>${util.calcAndFormatDeltaBytes(before.metrics[key], after.metrics[key], 1000)}</td>`),
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`</tr>`,
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`<tr>`,
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`<th><b>Δ (%)</b></th>`,
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...summary.map((key) => `<td>${util.calcAndFormatDeltaPercent(before.summary[key], after.summary[key], 0.1)}</td>`),
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...metrics.map((key) => `<td>${util.calcAndFormatDeltaPercent(before.metrics[key], after.metrics[key], 0.1)}</td>`),
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`</tr>`,
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`</tbody>`,
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`</table>`,
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];
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}
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function getChunkComparisonRows(keys: string[], before: Record<string, FileEntry>, after: Record<string, FileEntry>) {
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return keys.map(key => {
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const beforeEntry = before[key];
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const afterEntry = after[key];
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const beforeSize = beforeEntry?.size ?? 0;
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const afterSize = afterEntry?.size ?? 0;
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return {
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key,
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name: entryDisplayName(beforeEntry ?? afterEntry),
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beforeFile: beforeEntry?.file,
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afterFile: afterEntry?.file,
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beforeSize,
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afterSize,
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changeType: beforeEntry == null ? 'added' : afterEntry == null ? 'removed' : beforeSize !== afterSize ? 'updated' : 'unchanged',
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sortSize: Math.max(beforeSize, afterSize),
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};
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});
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}
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type ChunkComparisonRow = ReturnType<typeof getChunkComparisonRows>[number];
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type ChunkAggregate = {
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beforeSize: number;
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afterSize: number;
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beforeCount: number;
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afterCount: number;
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};
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const smallDeltaThreshold = 5;
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function sumChunkSizes(chunks: FileEntry[]) {
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return chunks.reduce((sum, chunk) => sum + chunk.size, 0);
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}
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function generatedAggregate(before: FileEntry[], after: FileEntry[]): ChunkAggregate {
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const beforeGenerated = before.filter(chunk => chunk.comparisonKey == null);
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const afterGenerated = after.filter(chunk => chunk.comparisonKey == null);
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return {
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beforeSize: sumChunkSizes(beforeGenerated),
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afterSize: sumChunkSizes(afterGenerated),
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beforeCount: beforeGenerated.length,
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afterCount: afterGenerated.length,
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};
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}
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function hasSmallDelta(row: ChunkComparisonRow) {
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return Math.abs(row.afterSize - row.beforeSize) <= smallDeltaThreshold;
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}
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function comparisonRowsAggregate(rows: ChunkComparisonRow[]): ChunkAggregate {
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return {
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beforeSize: rows.reduce((sum, row) => sum + row.beforeSize, 0),
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afterSize: rows.reduce((sum, row) => sum + row.afterSize, 0),
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beforeCount: rows.filter(row => row.beforeFile != null).length,
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afterCount: rows.filter(row => row.afterFile != null).length,
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};
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}
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function comparableMap(chunks: FileEntry[]) {
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const entries: [string, FileEntry][] = [];
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for (const chunk of chunks) {
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if (chunk.comparisonKey != null) entries.push([chunk.comparisonKey, chunk]);
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}
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return Object.fromEntries(entries);
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}
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function summarizeChunkChanges(rows: ReturnType<typeof getChunkComparisonRows>) {
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return {
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updated: rows.filter((row) => row.changeType === 'updated').length,
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added: rows.filter((row) => row.changeType === 'added').length,
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removed: rows.filter((row) => row.changeType === 'removed').length,
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};
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}
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function formatChunkChangeSummary(label: string, summary: ReturnType<typeof summarizeChunkChanges>) {
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return `${label} (${summary.updated} updated, ${summary.added} added, ${summary.removed} removed)`;
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}
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function compareChunkComparisonRows(a: ChunkComparisonRow, b: ChunkComparisonRow) {
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return Math.abs(b.afterSize - b.beforeSize) - Math.abs(a.afterSize - a.beforeSize)
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|| (b.afterSize - b.beforeSize) - (a.afterSize - a.beforeSize)
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|| b.sortSize - a.sortSize
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|| a.name.localeCompare(b.name);
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}
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function chunkFileDisplay(row: ChunkComparisonRow) {
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if (row.beforeFile == null) return row.afterFile ?? '';
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if (row.afterFile == null || row.beforeFile === row.afterFile) return row.beforeFile;
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return `${row.beforeFile} → ${row.afterFile}`;
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}
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function chunkMarkdownTable(
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rows: ReturnType<typeof getChunkComparisonRows>,
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total?: { beforeSize: number; afterSize: number },
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generated?: ChunkAggregate,
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other?: ChunkAggregate,
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) {
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const hasGenerated = generated != null && (generated.beforeCount > 0 || generated.afterCount > 0);
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const hasOther = other != null && (other.beforeCount > 0 || other.afterCount > 0);
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if (rows.length === 0 && total == null && !hasGenerated && !hasOther) return '_No data_';
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const lines = [
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'| Chunk | Before | After | Δ | Δ (%) |',
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'| --- | ---: | ---: | ---: | ---: |',
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];
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if (total != null) {
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lines.push(`| (total) | ${util.formatBytes(total.beforeSize)} | ${util.formatBytes(total.afterSize)} | ${util.calcAndFormatDeltaBytes(total.beforeSize, total.afterSize, 1000)} | ${util.calcAndFormatDeltaPercent(total.beforeSize, total.afterSize, 0.1).replaceAll('\\%', '\\\\%')} |`);
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lines.push('| | | | | |');
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}
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for (const row of rows) {
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const chunkFile = chunkFileDisplay(row);
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if (row.changeType === 'added') {
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lines.push(`| <details><summary>\`${util.escapeMdTableCell(row.name)}\`</summary> \`${util.escapeMdTableCell(chunkFile)}\` </details> | ${util.formatBytes(row.beforeSize)} | ${util.formatBytes(row.afterSize)} | ${util.calcAndFormatDeltaBytes(row.beforeSize, row.afterSize, 1000)} | $\\color{orange}{\\text{( + )}}$ |`);
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} else if (row.changeType === 'removed') {
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lines.push(`| <details><summary>\`${util.escapeMdTableCell(row.name)}\`</summary> \`${util.escapeMdTableCell(chunkFile)}\` </details> | ${util.formatBytes(row.beforeSize)} | ${util.formatBytes(row.afterSize)} | ${util.calcAndFormatDeltaBytes(row.beforeSize, row.afterSize, 1000)} | $\\color{green}{\\text{( - )}}$ |`);
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} else {
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lines.push(`| <details><summary>\`${util.escapeMdTableCell(row.name)}\`</summary> \`${util.escapeMdTableCell(chunkFile)}\` </details> | ${util.formatBytes(row.beforeSize)} | ${util.formatBytes(row.afterSize)} | ${util.calcAndFormatDeltaBytes(row.beforeSize, row.afterSize, 1000)} | ${util.calcAndFormatDeltaPercent(row.beforeSize, row.afterSize, 0.1).replaceAll('\\%', '\\\\%')} |`);
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}
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}
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if (hasGenerated) {
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lines.push(`| (other generated chunks) | ${util.formatBytes(generated.beforeSize)} | ${util.formatBytes(generated.afterSize)} | ${util.calcAndFormatDeltaBytes(generated.beforeSize, generated.afterSize, 1000)} | ${util.calcAndFormatDeltaPercent(generated.beforeSize, generated.afterSize, 0.1).replaceAll('\\%', '\\\\%')} |`);
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}
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if (hasOther) {
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lines.push(`| (other) | ${util.formatBytes(other.beforeSize)} | ${util.formatBytes(other.afterSize)} | ${util.calcAndFormatDeltaBytes(other.beforeSize, other.afterSize, 1000)} | ${util.calcAndFormatDeltaPercent(other.beforeSize, other.afterSize, 0.1).replaceAll('\\%', '\\\\%')} |`);
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}
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return lines.join('\n');
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}
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function renderFrontendChunkReport(before: Awaited<ReturnType<typeof collectReport>>, after: Awaited<ReturnType<typeof collectReport>>) {
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const beforeComparable = before.comparableChunks;
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const afterComparable = after.comparableChunks;
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const allChunkKeys = [...new Set([...Object.keys(beforeComparable), ...Object.keys(afterComparable)])];
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const allComparisonRows = getChunkComparisonRows(allChunkKeys, beforeComparable, afterComparable);
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|
|
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const changedRows = allComparisonRows.filter((row) => row.changeType !== 'unchanged');
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const diffSummary = summarizeChunkChanges(changedRows);
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const diffTotal = {
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beforeSize: sumChunkSizes(before.chunks),
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afterSize: sumChunkSizes(after.chunks),
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};
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const diffGenerated = generatedAggregate(before.chunks, after.chunks);
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const diffOther = comparisonRowsAggregate(changedRows.filter(hasSmallDelta));
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const diffRows = changedRows.filter(row => !hasSmallDelta(row)).sort(compareChunkComparisonRows).slice(0, 30); // TODO: 実際に30を超えて切り捨てられたrowがあった場合はその旨をmarkdown内に表示するようにする
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|
|
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const beforeStartupFiles = new Set(before.startupFiles);
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const afterStartupFiles = new Set(after.startupFiles);
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const beforeStartupChunks = before.chunks.filter(chunk => beforeStartupFiles.has(chunk.file));
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const afterStartupChunks = after.chunks.filter(chunk => afterStartupFiles.has(chunk.file));
|
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const beforeStartupComparable = comparableMap(beforeStartupChunks);
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|
const afterStartupComparable = comparableMap(afterStartupChunks);
|
|
const startupKeys = [...new Set([...Object.keys(beforeStartupComparable), ...Object.keys(afterStartupComparable)])];
|
|
const startupComparisonRows = getChunkComparisonRows(startupKeys, beforeStartupComparable, afterStartupComparable);
|
|
const startupSummary = summarizeChunkChanges(startupComparisonRows);
|
|
const startupOther = comparisonRowsAggregate(startupComparisonRows.filter(hasSmallDelta));
|
|
const startupRows = startupComparisonRows.filter(row => !hasSmallDelta(row)).sort(compareChunkComparisonRows);
|
|
const startupTotal = {
|
|
beforeSize: sumChunkSizes(beforeStartupChunks),
|
|
afterSize: sumChunkSizes(afterStartupChunks),
|
|
};
|
|
const startupGenerated = generatedAggregate(beforeStartupChunks, afterStartupChunks);
|
|
|
|
return [
|
|
'<details>',
|
|
`<summary>${formatChunkChangeSummary('Chunk size diff', diffSummary)}</summary>`,
|
|
'',
|
|
chunkMarkdownTable(diffRows, diffTotal, diffGenerated, diffOther),
|
|
'',
|
|
'</details>',
|
|
'',
|
|
'<details>',
|
|
`<summary>${formatChunkChangeSummary('Startup chunk size', startupSummary)}</summary>`,
|
|
'',
|
|
chunkMarkdownTable(startupRows, startupTotal, startupGenerated, startupOther),
|
|
'',
|
|
`_Startup chunks are the Vite entry for \`src/_boot_.ts\` and its static imports._`,
|
|
'',
|
|
'</details>',
|
|
'',
|
|
].join('\n');
|
|
}
|
|
|
|
const args = process.argv.slice(2);
|
|
const [beforeDir, afterDir, beforeStatsFile, afterStatsFile, outFile] = args;
|
|
const before = await collectReport(beforeDir);
|
|
const after = await collectReport(afterDir);
|
|
const beforeStats = JSON.parse(await fs.readFile(beforeStatsFile, 'utf8')) as VisualizerReport;
|
|
const afterStats = JSON.parse(await fs.readFile(afterStatsFile, 'utf8')) as VisualizerReport;
|
|
const beforeVisualizerReport = collectVisualizerReport(beforeStats);
|
|
const afterVisualizerReport = collectVisualizerReport(afterStats);
|
|
const visualizerArtifactLink = `[Open treemap HTML](${process.env.FRONTEND_BUNDLE_REPORT_ARTIFACT_URL})`;
|
|
|
|
const body = [
|
|
`## 📦 Frontend Bundle Report`,
|
|
'',
|
|
renderFrontendChunkReport(before, after),
|
|
'',
|
|
'## Bundle Stats',
|
|
'',
|
|
renderVisualizerSummaryTable(beforeVisualizerReport, afterVisualizerReport),
|
|
'',
|
|
visualizerArtifactLink,
|
|
].join('\n');
|
|
|
|
await fs.writeFile(outFile, body);
|