Duffer Derek

{"version":3,"sources":["../../src/build/route-bundle-stats.ts"],"sourcesContent":["import path from 'path'\nimport { promises as fs, statSync } from 'fs'\nimport {\n  APP_PATHS_MANIFEST,\n  CLIENT_REFERENCE_MANIFEST,\n  SERVER_DIRECTORY,\n} from '../shared/lib/constants'\nimport type { BuildManifest } from '../server/get-page-files'\nimport { filterAndSortList } from './utils'\n\nconst ROUTE_BUNDLE_STATS_FILE = 'route-bundle-stats.json'\n\ntype RouteBundleStat = {\n  route: string\n  firstLoadUncompressedJsBytes: number\n  firstLoadChunkPaths: string[]\n}\n\nfunction sumFileSizes(\n  distDir: string,\n  files: string[],\n  cache: Map<string, number>\n): number {\n  let total = 0\n  for (const relPath of files) {\n    const cached = cache.get(relPath)\n    if (cached !== undefined) {\n      total += cached\n      continue\n    }\n    try {\n      const size = statSync(path.join(distDir, relPath)).size\n      cache.set(relPath, size)\n      total += size\n    } catch {\n      // ignore missing files\n    }\n  }\n  return total\n}\n\nfunction toProjectRelativePaths(\n  dir: string,\n  distDir: string,\n  relPaths: string[]\n): string[] {\n  return relPaths.map((f) => path.relative(dir, path.join(distDir, f)))\n}\n\nfunction buildRouteToAppPathsMap(\n  appPathsManifest: Record<string, string>\n): Map<string, string[]> {\n  const { normalizeAppPath } =\n    require('../shared/lib/router/utils/app-paths') as typeof import('../shared/lib/router/utils/app-paths')\n  // Keys in appPathsManifest are app paths like /blog/[slug]/page;\n  // values are server bundle file paths. Normalize the key to get the route.\n  const routeToAppPaths = new Map<string, string[]>()\n  for (const appPath of Object.keys(appPathsManifest)) {\n    const route = normalizeAppPath(appPath)\n    const existing = routeToAppPaths.get(route)\n    if (existing) {\n      existing.push(appPath)\n    } else {\n      routeToAppPaths.set(route, [appPath])\n    }\n  }\n  return routeToAppPaths\n}\n\n// Reads the manfiest file and gets the entry JS files. The manifest file is\n// a JavaScript file that sets a global variable (__RSC_MANIFEST). We require()\n// it with a save/restore of the global\nfunction readEntryJSFiles(\n  distDir: string,\n  pagePath: string,\n  appRoute: string\n): Record<string, string[]> | undefined {\n  const manifestFile = path.join(\n    distDir,\n    SERVER_DIRECTORY,\n    'app',\n    `${pagePath}_${CLIENT_REFERENCE_MANIFEST}.js`\n  )\n  try {\n    const g = global as Record<string, unknown>\n    const prev = g.__RSC_MANIFEST\n    g.__RSC_MANIFEST = undefined\n    require(manifestFile)\n    const rscManifest = g.__RSC_MANIFEST as\n      | Record<string, { entryJSFiles?: Record<string, string[]> }>\n      | undefined\n    g.__RSC_MANIFEST = prev\n\n    // The key in __RSC_MANIFEST is the app path (e.g. /blog/[slug]/page)\n    const manifestEntry = rscManifest?.[pagePath] ?? rscManifest?.[appRoute]\n    return manifestEntry?.entryJSFiles\n  } catch {\n    return undefined\n  }\n}\n\nfunction collectPagesRouterStats(\n  pages: ReadonlyArray<string>,\n  buildManifest: BuildManifest,\n  distDir: string,\n  dir: string,\n  cache: Map<string, number>\n): RouteBundleStat[] {\n  const rows: RouteBundleStat[] = []\n  const sharedFiles = buildManifest.pages['/_app'] ?? []\n  for (const page of filterAndSortList(pages, 'pages', false)) {\n    if (page === '/_app' || page === '/_document' || page === '/_error')\n      // Don't report on layouts directly\n      continue\n\n    const allFiles = (buildManifest.pages[page] ?? []).filter((f) =>\n      f.endsWith('.js')\n    )\n    const sharedJs = sharedFiles.filter((f) => f.endsWith('.js'))\n    const chunks = [...new Set([...allFiles, ...sharedJs])]\n    const firstLoadUncompressedJsBytes = sumFileSizes(distDir, chunks, cache)\n    rows.push({\n      route: page,\n      firstLoadUncompressedJsBytes,\n      firstLoadChunkPaths: toProjectRelativePaths(dir, distDir, chunks),\n    })\n  }\n  return rows\n}\n\nasync function collectAppRouterStats(\n  appRoutes: ReadonlyArray<string>,\n  buildManifest: BuildManifest,\n  distDir: string,\n  dir: string,\n  cache: Map<string, number>\n): Promise<RouteBundleStat[]> {\n  let appPathsManifest: Record<string, string> = {}\n  try {\n    const manifestPath = path.join(\n      distDir,\n      SERVER_DIRECTORY,\n      APP_PATHS_MANIFEST\n    )\n    appPathsManifest = JSON.parse(await fs.readFile(manifestPath, 'utf8'))\n  } catch {\n    // App paths manifest not available; skip app router sizes\n    return []\n  }\n\n  const routeToAppPaths = buildRouteToAppPathsMap(appPathsManifest)\n  const sharedFiles = buildManifest.rootMainFiles ?? []\n  const rows: RouteBundleStat[] = []\n\n  for (const appRoute of filterAndSortList(appRoutes, 'app', false)) {\n    const appPaths = routeToAppPaths.get(appRoute) ?? []\n    // Find the /page entry (most specific, has the most chunks)\n    const pagePath = appPaths.find((p) => p.endsWith('/page'))\n    if (!pagePath) continue\n\n    const entryJSFiles = readEntryJSFiles(distDir, pagePath, appRoute)\n    if (!entryJSFiles) continue\n\n    // Union JS files across all segments (page, layout, etc.) so that\n    // layout code's contribution is included in the First Load JS total.\n    const allFiles = [\n      ...new Set(\n        Object.values(entryJSFiles)\n          .flat()\n          .filter((f) => f.endsWith('.js'))\n      ),\n    ]\n    const sharedJs = sharedFiles.filter((f) => f.endsWith('.js'))\n    const chunks = [...new Set([...allFiles, ...sharedJs])]\n    const firstLoadUncompressedJsBytes = sumFileSizes(distDir, chunks, cache)\n    rows.push({\n      route: appRoute,\n      firstLoadUncompressedJsBytes,\n      firstLoadChunkPaths: toProjectRelativePaths(dir, distDir, chunks),\n    })\n  }\n  return rows\n}\n\nexport async function writeRouteBundleStats(\n  lists: {\n    pages: ReadonlyArray<string>\n    app: ReadonlyArray<string> | undefined\n  },\n  buildManifest: BuildManifest,\n  distDir: string,\n  dir: string\n): Promise<void> {\n  const cache = new Map<string, number>()\n\n  const rows = [\n    ...(lists.pages.length > 0\n      ? collectPagesRouterStats(lists.pages, buildManifest, distDir, dir, cache)\n      : []),\n    ...(lists.app && lists.app.length > 0\n      ? await collectAppRouterStats(\n          lists.app,\n          buildManifest,\n          distDir,\n          dir,\n          cache\n        )\n      : []),\n  ]\n\n  rows.sort(\n    (a, b) => b.firstLoadUncompressedJsBytes - a.firstLoadUncompressedJsBytes\n  )\n\n  const diagnosticsDir = path.join(distDir, 'diagnostics')\n  await fs.mkdir(diagnosticsDir, { recursive: true })\n  await fs.writeFile(\n    path.join(diagnosticsDir, ROUTE_BUNDLE_STATS_FILE),\n    JSON.stringify(rows, null, 2)\n  )\n}\n"],"names":["writeRouteBundleStats","ROUTE_BUNDLE_STATS_FILE","sumFileSizes","distDir","files","cache","total","relPath","cached","get","undefined","size","statSync","path","join","set","toProjectRelativePaths","dir","relPaths","map","f","relative","buildRouteToAppPathsMap","appPathsManifest","normalizeAppPath","require","routeToAppPaths","Map","appPath","Object","keys","route","existing","push","readEntryJSFiles","pagePath","appRoute","manifestFile","SERVER_DIRECTORY","CLIENT_REFERENCE_MANIFEST","g","global","prev","__RSC_MANIFEST","rscManifest","manifestEntry","entryJSFiles","collectPagesRouterStats","pages","buildManifest","rows","sharedFiles","page","filterAndSortList","allFiles","filter","endsWith","sharedJs","chunks","Set","firstLoadUncompressedJsBytes","firstLoadChunkPaths","collectAppRouterStats","appRoutes","manifestPath","APP_PATHS_MANIFEST","JSON","parse","fs","readFile","rootMainFiles","appPaths","find","p","values","flat","lists","length","app","sort","a","b","diagnosticsDir","mkdir","recursive","writeFile","stringify"],"mappings":";;;;+BAwLsBA;;;eAAAA;;;6DAxLL;oBACwB;2BAKlC;uBAE2B;;;;;;AAElC,MAAMC,0BAA0B;AAQhC,SAASC,aACPC,OAAe,EACfC,KAAe,EACfC,KAA0B;IAE1B,IAAIC,QAAQ;IACZ,KAAK,MAAMC,WAAWH,MAAO;QAC3B,MAAMI,SAASH,MAAMI,GAAG,CAACF;QACzB,IAAIC,WAAWE,WAAW;YACxBJ,SAASE;YACT;QACF;QACA,IAAI;YACF,MAAMG,OAAOC,IAAAA,YAAQ,EAACC,aAAI,CAACC,IAAI,CAACX,SAASI,UAAUI,IAAI;YACvDN,MAAMU,GAAG,CAACR,SAASI;YACnBL,SAASK;QACX,EAAE,OAAM;QACN,uBAAuB;QACzB;IACF;IACA,OAAOL;AACT;AAEA,SAASU,uBACPC,GAAW,EACXd,OAAe,EACfe,QAAkB;IAElB,OAAOA,SAASC,GAAG,CAAC,CAACC,IAAMP,aAAI,CAACQ,QAAQ,CAACJ,KAAKJ,aAAI,CAACC,IAAI,CAACX,SAASiB;AACnE;AAEA,SAASE,wBACPC,gBAAwC;IAExC,MAAM,EAAEC,gBAAgB,EAAE,GACxBC,QAAQ;IACV,iEAAiE;IACjE,2EAA2E;IAC3E,MAAMC,kBAAkB,IAAIC;IAC5B,KAAK,MAAMC,WAAWC,OAAOC,IAAI,CAACP,kBAAmB;QACnD,MAAMQ,QAAQP,iBAAiBI;QAC/B,MAAMI,WAAWN,gBAAgBjB,GAAG,CAACsB;QACrC,IAAIC,UAAU;YACZA,SAASC,IAAI,CAACL;QAChB,OAAO;YACLF,gBAAgBX,GAAG,CAACgB,OAAO;gBAACH;aAAQ;QACtC;IACF;IACA,OAAOF;AACT;AAEA,4EAA4E;AAC5E,+EAA+E;AAC/E,uCAAuC;AACvC,SAASQ,iBACP/B,OAAe,EACfgC,QAAgB,EAChBC,QAAgB;IAEhB,MAAMC,eAAexB,aAAI,CAACC,IAAI,CAC5BX,SACAmC,2BAAgB,EAChB,OACA,GAAGH,SAAS,CAAC,EAAEI,oCAAyB,CAAC,GAAG,CAAC;IAE/C,IAAI;QACF,MAAMC,IAAIC;QACV,MAAMC,OAAOF,EAAEG,cAAc;QAC7BH,EAAEG,cAAc,GAAGjC;QACnBe,QAAQY;QACR,MAAMO,cAAcJ,EAAEG,cAAc;QAGpCH,EAAEG,cAAc,GAAGD;QAEnB,qEAAqE;QACrE,MAAMG,gBAAgBD,CAAAA,+BAAAA,WAAa,CAACT,SAAS,MAAIS,+BAAAA,WAAa,CAACR,SAAS;QACxE,OAAOS,iCAAAA,cAAeC,YAAY;IACpC,EAAE,OAAM;QACN,OAAOpC;IACT;AACF;AAEA,SAASqC,wBACPC,KAA4B,EAC5BC,aAA4B,EAC5B9C,OAAe,EACfc,GAAW,EACXZ,KAA0B;IAE1B,MAAM6C,OAA0B,EAAE;IAClC,MAAMC,cAAcF,cAAcD,KAAK,CAAC,QAAQ,IAAI,EAAE;IACtD,KAAK,MAAMI,QAAQC,IAAAA,wBAAiB,EAACL,OAAO,SAAS,OAAQ;QAC3D,IAAII,SAAS,WAAWA,SAAS,gBAAgBA,SAAS,WAExD;QAEF,MAAME,WAAW,AAACL,CAAAA,cAAcD,KAAK,CAACI,KAAK,IAAI,EAAE,AAAD,EAAGG,MAAM,CAAC,CAACnC,IACzDA,EAAEoC,QAAQ,CAAC;QAEb,MAAMC,WAAWN,YAAYI,MAAM,CAAC,CAACnC,IAAMA,EAAEoC,QAAQ,CAAC;QACtD,MAAME,SAAS;eAAI,IAAIC,IAAI;mBAAIL;mBAAaG;aAAS;SAAE;QACvD,MAAMG,+BAA+B1D,aAAaC,SAASuD,QAAQrD;QACnE6C,KAAKjB,IAAI,CAAC;YACRF,OAAOqB;YACPQ;YACAC,qBAAqB7C,uBAAuBC,KAAKd,SAASuD;QAC5D;IACF;IACA,OAAOR;AACT;AAEA,eAAeY,sBACbC,SAAgC,EAChCd,aAA4B,EAC5B9C,OAAe,EACfc,GAAW,EACXZ,KAA0B;IAE1B,IAAIkB,mBAA2C,CAAC;IAChD,IAAI;QACF,MAAMyC,eAAenD,aAAI,CAACC,IAAI,CAC5BX,SACAmC,2BAAgB,EAChB2B,6BAAkB;QAEpB1C,mBAAmB2C,KAAKC,KAAK,CAAC,MAAMC,YAAE,CAACC,QAAQ,CAACL,cAAc;IAChE,EAAE,OAAM;QACN,0DAA0D;QAC1D,OAAO,EAAE;IACX;IAEA,MAAMtC,kBAAkBJ,wBAAwBC;IAChD,MAAM4B,cAAcF,cAAcqB,aAAa,IAAI,EAAE;IACrD,MAAMpB,OAA0B,EAAE;IAElC,KAAK,MAAMd,YAAYiB,IAAAA,wBAAiB,EAACU,WAAW,OAAO,OAAQ;QACjE,MAAMQ,WAAW7C,gBAAgBjB,GAAG,CAAC2B,aAAa,EAAE;QACpD,4DAA4D;QAC5D,MAAMD,WAAWoC,SAASC,IAAI,CAAC,CAACC,IAAMA,EAAEjB,QAAQ,CAAC;QACjD,IAAI,CAACrB,UAAU;QAEf,MAAMW,eAAeZ,iBAAiB/B,SAASgC,UAAUC;QACzD,IAAI,CAACU,cAAc;QAEnB,kEAAkE;QAClE,qEAAqE;QACrE,MAAMQ,WAAW;eACZ,IAAIK,IACL9B,OAAO6C,MAAM,CAAC5B,cACX6B,IAAI,GACJpB,MAAM,CAAC,CAACnC,IAAMA,EAAEoC,QAAQ,CAAC;SAE/B;QACD,MAAMC,WAAWN,YAAYI,MAAM,CAAC,CAACnC,IAAMA,EAAEoC,QAAQ,CAAC;QACtD,MAAME,SAAS;eAAI,IAAIC,IAAI;mBAAIL;mBAAaG;aAAS;SAAE;QACvD,MAAMG,+BAA+B1D,aAAaC,SAASuD,QAAQrD;QACnE6C,KAAKjB,IAAI,CAAC;YACRF,OAAOK;YACPwB;YACAC,qBAAqB7C,uBAAuBC,KAAKd,SAASuD;QAC5D;IACF;IACA,OAAOR;AACT;AAEO,eAAelD,sBACpB4E,KAGC,EACD3B,aAA4B,EAC5B9C,OAAe,EACfc,GAAW;IAEX,MAAMZ,QAAQ,IAAIsB;IAElB,MAAMuB,OAAO;WACP0B,MAAM5B,KAAK,CAAC6B,MAAM,GAAG,IACrB9B,wBAAwB6B,MAAM5B,KAAK,EAAEC,eAAe9C,SAASc,KAAKZ,SAClE,EAAE;WACFuE,MAAME,GAAG,IAAIF,MAAME,GAAG,CAACD,MAAM,GAAG,IAChC,MAAMf,sBACJc,MAAME,GAAG,EACT7B,eACA9C,SACAc,KACAZ,SAEF,EAAE;KACP;IAED6C,KAAK6B,IAAI,CACP,CAACC,GAAGC,IAAMA,EAAErB,4BAA4B,GAAGoB,EAAEpB,4BAA4B;IAG3E,MAAMsB,iBAAiBrE,aAAI,CAACC,IAAI,CAACX,SAAS;IAC1C,MAAMiE,YAAE,CAACe,KAAK,CAACD,gBAAgB;QAAEE,WAAW;IAAK;IACjD,MAAMhB,YAAE,CAACiB,SAAS,CAChBxE,aAAI,CAACC,IAAI,CAACoE,gBAAgBjF,0BAC1BiE,KAAKoB,SAAS,CAACpC,MAAM,MAAM;AAE/B","ignoreList":[0]}