perf(frontend): split heavyweight vendors into manual chunks (#823)

* perf(frontend): split heavyweight vendors into manual chunks Vite's default chunking grouped monaco-editor, the xterm addons, recharts, @xyflow/react + @dagrejs/dagre, and motion into shared chunks with the Sencho app code. Any small change in the app would bust the cache for the heavyweight vendor code, costing repeat visitors a fresh download. Add explicit manualChunks for monaco, xterm, charts, flow, and motion. Each vendor is large enough to justify its own HTTP/2 stream, and grouping them by library keeps their cache key stable across feature releases. Also wire rollup-plugin-visualizer behind ANALYZE=true so `ANALYZE=true npm run build` emits dist/stats.html for ad-hoc bundle inspection without affecting CI or production builds. Bump build.chunkSizeWarningLimit from the default 500 KB to 1500 KB since the monaco chunk is intentionally large; this preserves the warning's signal value for genuine future regressions. * fix(frontend): use manualChunks function form for vite 8 typing Vite 8's OutputOptions overload narrows manualChunks to the ManualChunksFunction shape, so the object form rejected the chunk keys with TS2769. Convert to the equivalent function form using node_modules path matching; same chunk groupings as before. Also pin rollup-plugin-visualizer to ^6.0.0; 7.x raised the engine floor to Node 22 and CI runs Node 20, so npm emitted EBADENGINE warnings. Version 6 supports Node 18+ and exposes the same visualizer({ filename, gzipSize, brotliSize }) API.
2026-08-05 16:37:46 +00:00 · 2026-04-28 03:00:08 -04:00
parent eb1d627096
commit f5dd8af7db
3 changed files with 302 additions and 2 deletions
@@ -68,6 +68,7 @@
        "eslint-plugin-react-refresh": "^0.5.2",
        "globals": "^17.5.0",
        "jsdom": "^29.1.0",
+        "rollup-plugin-visualizer": "^6.0.0",
        "tailwindcss": "^4.2.2",
        "typescript": "^6.0.3",
        "typescript-eslint": "^8.59.0",
@@ -4281,6 +4282,21 @@
      "integrity": "sha512-JhZUT7JFcQy/EzW605k/ktHtncoo9vnyW/2GspNYwFlN1C/WmjuV/xtS04e9SOkL2sTdw0VAZ2UGCcQ9lR6p6w==",
      "license": "MIT"
    },
+    "node_modules/cliui": {
+      "version": "8.0.1",
+      "resolved": "https://registry.npmjs.org/cliui/-/cliui-8.0.1.tgz",
+      "integrity": "sha512-BSeNnyus75C4//NQ9gQt1/csTXyo/8Sb+afLAkzAptFuMsod9HFokGNudZpi/oQV73hnVK+sR+5PVRMd+Dr7YQ==",
+      "dev": true,
+      "license": "ISC",
+      "dependencies": {
+        "string-width": "^4.2.0",
+        "strip-ansi": "^6.0.1",
+        "wrap-ansi": "^7.0.0"
+      },
+      "engines": {
+        "node": ">=12"
+      }
+    },
    "node_modules/clsx": {
      "version": "2.1.1",
      "resolved": "https://registry.npmjs.org/clsx/-/clsx-2.1.1.tgz",
@@ -4306,6 +4322,26 @@
        "react-dom": "^18 || ^19 || ^19.0.0-rc"
      }
    },
+    "node_modules/color-convert": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-2.0.1.tgz",
+      "integrity": "sha512-RRECPsj7iu/xb5oKYcsFHSppFNnsj/52OVTRKb4zP5onXwVF3zVmmToNcOfGC+CRDpfK/U584fMg38ZHCaElKQ==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "color-name": "~1.1.4"
+      },
+      "engines": {
+        "node": ">=7.0.0"
+      }
+    },
+    "node_modules/color-name": {
+      "version": "1.1.4",
+      "resolved": "https://registry.npmjs.org/color-name/-/color-name-1.1.4.tgz",
+      "integrity": "sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA==",
+      "dev": true,
+      "license": "MIT"
+    },
    "node_modules/convert-source-map": {
      "version": "2.0.0",
      "resolved": "https://registry.npmjs.org/convert-source-map/-/convert-source-map-2.0.0.tgz",
@@ -4620,6 +4656,16 @@
      "dev": true,
      "license": "MIT"
    },
+    "node_modules/define-lazy-prop": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/define-lazy-prop/-/define-lazy-prop-2.0.0.tgz",
+      "integrity": "sha512-Ds09qNh8yw3khSjiJjiUInaGX9xlqZDY7JVryGxdxV7NPeuqQfplOpQ66yJFZut3jLa5zOwkXw1g9EI2uKh4Og==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=8"
+      }
+    },
    "node_modules/dequal": {
      "version": "2.0.3",
      "resolved": "https://registry.npmjs.org/dequal/-/dequal-2.0.3.tgz",
@@ -4669,6 +4715,13 @@
      "dev": true,
      "license": "ISC"
    },
+    "node_modules/emoji-regex": {
+      "version": "8.0.0",
+      "resolved": "https://registry.npmjs.org/emoji-regex/-/emoji-regex-8.0.0.tgz",
+      "integrity": "sha512-MSjYzcWNOA0ewAHpz0MxpYFvwg6yjy1NG3xteoqz644VCo/RPgnr1/GGt+ic3iJTzQ8Eu3TdM14SawnVUmGE6A==",
+      "dev": true,
+      "license": "MIT"
+    },
    "node_modules/enhanced-resolve": {
      "version": "5.21.0",
      "resolved": "https://registry.npmjs.org/enhanced-resolve/-/enhanced-resolve-5.21.0.tgz",
@@ -5095,6 +5148,16 @@
        "node": ">=6.9.0"
      }
    },
+    "node_modules/get-caller-file": {
+      "version": "2.0.5",
+      "resolved": "https://registry.npmjs.org/get-caller-file/-/get-caller-file-2.0.5.tgz",
+      "integrity": "sha512-DyFP3BM/3YHTQOCUL/w0OZHR0lpKeGrxotcHWcqNEdnltqFwXVfhEBQ94eIo34AfQpo0rGki4cyIiftY06h2Fg==",
+      "dev": true,
+      "license": "ISC",
+      "engines": {
+        "node": "6.* || 8.* || >= 10.*"
+      }
+    },
    "node_modules/get-nonce": {
      "version": "1.0.1",
      "resolved": "https://registry.npmjs.org/get-nonce/-/get-nonce-1.0.1.tgz",
@@ -5216,6 +5279,22 @@
        "node": ">=12"
      }
    },
+    "node_modules/is-docker": {
+      "version": "2.2.1",
+      "resolved": "https://registry.npmjs.org/is-docker/-/is-docker-2.2.1.tgz",
+      "integrity": "sha512-F+i2BKsFrH66iaUFc0woD8sLy8getkwTwtOBjvs56Cx4CgJDeKQeqfz8wAYiSb8JOprWhHH5p77PbmYCvvUuXQ==",
+      "dev": true,
+      "license": "MIT",
+      "bin": {
+        "is-docker": "cli.js"
+      },
+      "engines": {
+        "node": ">=8"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
    "node_modules/is-extglob": {
      "version": "2.1.1",
      "resolved": "https://registry.npmjs.org/is-extglob/-/is-extglob-2.1.1.tgz",
@@ -5226,6 +5305,16 @@
        "node": ">=0.10.0"
      }
    },
+    "node_modules/is-fullwidth-code-point": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-3.0.0.tgz",
+      "integrity": "sha512-zymm5+u+sCsSWyD9qNaejV3DFvhCKclKdizYaJUuHA83RLjb7nSuGnddCHGv0hk+KY7BMAlsWeK4Ueg6EV6XQg==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=8"
+      }
+    },
    "node_modules/is-glob": {
      "version": "4.0.3",
      "resolved": "https://registry.npmjs.org/is-glob/-/is-glob-4.0.3.tgz",
@@ -5246,6 +5335,19 @@
      "dev": true,
      "license": "MIT"
    },
+    "node_modules/is-wsl": {
+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/is-wsl/-/is-wsl-2.2.0.tgz",
+      "integrity": "sha512-fKzAra0rGJUUBwGBgNkHZuToZcn+TtXHpeCgmkMJMMYx1sQDYaCSyjJBSCa2nH1DGm7s3n1oBnohoVTBaN7Lww==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "is-docker": "^2.0.0"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
    "node_modules/isexe": {
      "version": "2.0.0",
      "resolved": "https://registry.npmjs.org/isexe/-/isexe-2.0.0.tgz",
@@ -5855,6 +5957,24 @@
      ],
      "license": "MIT"
    },
+    "node_modules/open": {
+      "version": "8.4.2",
+      "resolved": "https://registry.npmjs.org/open/-/open-8.4.2.tgz",
+      "integrity": "sha512-7x81NCL719oNbsq/3mh+hVrAWmFuEYUqrq/Iw3kUzH8ReypT9QQ0BLoJS7/G9k6N81XjW4qHWtjWwe/9eLy1EQ==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "define-lazy-prop": "^2.0.0",
+        "is-docker": "^2.1.1",
+        "is-wsl": "^2.2.0"
+      },
+      "engines": {
+        "node": ">=12"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
    "node_modules/optionator": {
      "version": "0.9.4",
      "resolved": "https://registry.npmjs.org/optionator/-/optionator-0.9.4.tgz",
@@ -6401,6 +6521,16 @@
        "redux": "^5.0.0"
      }
    },
+    "node_modules/require-directory": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/require-directory/-/require-directory-2.1.1.tgz",
+      "integrity": "sha512-fGxEI7+wsG9xrvdjsrlmL22OMTTiHRwAMroiEeMgq8gzoLC/PQr7RsRDSTLUg/bZAZtF+TVIkHc6/4RIKrui+Q==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
    "node_modules/require-from-string": {
      "version": "2.0.2",
      "resolved": "https://registry.npmjs.org/require-from-string/-/require-from-string-2.0.2.tgz",
@@ -6458,6 +6588,37 @@
      "dev": true,
      "license": "MIT"
    },
+    "node_modules/rollup-plugin-visualizer": {
+      "version": "6.0.11",
+      "resolved": "https://registry.npmjs.org/rollup-plugin-visualizer/-/rollup-plugin-visualizer-6.0.11.tgz",
+      "integrity": "sha512-TBwVHVY7buHjIKVLqr9scTVFwqZqMXINcCphPwIWKPDCOBIa+jCQfafvbjRJDZgXdq/A996Dy6yGJ/+/NtAXDQ==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "open": "^8.0.0",
+        "picomatch": "^4.0.2",
+        "source-map": "^0.7.4",
+        "yargs": "^17.5.1"
+      },
+      "bin": {
+        "rollup-plugin-visualizer": "dist/bin/cli.js"
+      },
+      "engines": {
+        "node": ">=18"
+      },
+      "peerDependencies": {
+        "rolldown": "1.x || ^1.0.0-beta",
+        "rollup": "2.x || 3.x || 4.x"
+      },
+      "peerDependenciesMeta": {
+        "rolldown": {
+          "optional": true
+        },
+        "rollup": {
+          "optional": true
+        }
+      }
+    },
    "node_modules/saxes": {
      "version": "6.0.0",
      "resolved": "https://registry.npmjs.org/saxes/-/saxes-6.0.0.tgz",
@@ -6517,6 +6678,16 @@
      "dev": true,
      "license": "ISC"
    },
+    "node_modules/source-map": {
+      "version": "0.7.6",
+      "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.7.6.tgz",
+      "integrity": "sha512-i5uvt8C3ikiWeNZSVZNWcfZPItFQOsYTUAOkcUPGd8DqDy1uOUikjt5dG+uRlwyvR108Fb9DOd4GvXfT0N2/uQ==",
+      "dev": true,
+      "license": "BSD-3-Clause",
+      "engines": {
+        "node": ">= 12"
+      }
+    },
    "node_modules/source-map-js": {
      "version": "1.2.1",
      "resolved": "https://registry.npmjs.org/source-map-js/-/source-map-js-1.2.1.tgz",
@@ -6547,6 +6718,34 @@
      "dev": true,
      "license": "MIT"
    },
+    "node_modules/string-width": {
+      "version": "4.2.3",
+      "resolved": "https://registry.npmjs.org/string-width/-/string-width-4.2.3.tgz",
+      "integrity": "sha512-wKyQRQpjJ0sIp62ErSZdGsjMJWsap5oRNihHhu6G7JVO/9jIB6UyevL+tXuOqrng8j/cxKTWyWUwvSTriiZz/g==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "emoji-regex": "^8.0.0",
+        "is-fullwidth-code-point": "^3.0.0",
+        "strip-ansi": "^6.0.1"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
+    "node_modules/strip-ansi": {
+      "version": "6.0.1",
+      "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-6.0.1.tgz",
+      "integrity": "sha512-Y38VPSHcqkFrCpFnQ9vuSXmquuv5oXOKpGeT6aGrr3o3Gc9AlVa6JBfUSOCnbxGGZF+/0ooI7KrPuUSztUdU5A==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "ansi-regex": "^5.0.1"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
    "node_modules/strip-indent": {
      "version": "3.0.0",
      "resolved": "https://registry.npmjs.org/strip-indent/-/strip-indent-3.0.0.tgz",
@@ -7164,6 +7363,40 @@
        "node": ">=0.10.0"
      }
    },
+    "node_modules/wrap-ansi": {
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-7.0.0.tgz",
+      "integrity": "sha512-YVGIj2kamLSTxw6NsZjoBxfSwsn0ycdesmc4p+Q21c5zPuZ1pl+NfxVdxPtdHvmNVOQ6XSYG4AUtyt/Fi7D16Q==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "ansi-styles": "^4.0.0",
+        "string-width": "^4.1.0",
+        "strip-ansi": "^6.0.0"
+      },
+      "engines": {
+        "node": ">=10"
+      },
+      "funding": {
+        "url": "https://github.com/chalk/wrap-ansi?sponsor=1"
+      }
+    },
+    "node_modules/wrap-ansi/node_modules/ansi-styles": {
+      "version": "4.3.0",
+      "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-4.3.0.tgz",
+      "integrity": "sha512-zbB9rCJAT1rbjiVDb2hqKFHNYLxgtk8NURxZ3IZwD3F6NtxbXZQCnnSi1Lkx+IDohdPlFp222wVALIheZJQSEg==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "color-convert": "^2.0.1"
+      },
+      "engines": {
+        "node": ">=8"
+      },
+      "funding": {
+        "url": "https://github.com/chalk/ansi-styles?sponsor=1"
+      }
+    },
    "node_modules/xml-name-validator": {
      "version": "5.0.0",
      "resolved": "https://registry.npmjs.org/xml-name-validator/-/xml-name-validator-5.0.0.tgz",
@@ -7181,6 +7414,16 @@
      "dev": true,
      "license": "MIT"
    },
+    "node_modules/y18n": {
+      "version": "5.0.8",
+      "resolved": "https://registry.npmjs.org/y18n/-/y18n-5.0.8.tgz",
+      "integrity": "sha512-0pfFzegeDWJHJIAmTLRP2DwHjdF5s7jo9tuztdQxAhINCdvS+3nGINqPd00AphqJR/0LhANUS6/+7SCb98YOfA==",
+      "dev": true,
+      "license": "ISC",
+      "engines": {
+        "node": ">=10"
+      }
+    },
    "node_modules/yallist": {
      "version": "3.1.1",
      "resolved": "https://registry.npmjs.org/yallist/-/yallist-3.1.1.tgz",
@@ -7203,6 +7446,35 @@
        "url": "https://github.com/sponsors/eemeli"
      }
    },
+    "node_modules/yargs": {
+      "version": "17.7.2",
+      "resolved": "https://registry.npmjs.org/yargs/-/yargs-17.7.2.tgz",
+      "integrity": "sha512-7dSzzRQ++CKnNI/krKnYRV7JKKPUXMEh61soaHKg9mrWEhzFWhFnxPxGl+69cD1Ou63C13NUPCnmIcrvqCuM6w==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "cliui": "^8.0.1",
+        "escalade": "^3.1.1",
+        "get-caller-file": "^2.0.5",
+        "require-directory": "^2.1.1",
+        "string-width": "^4.2.3",
+        "y18n": "^5.0.5",
+        "yargs-parser": "^21.1.1"
+      },
+      "engines": {
+        "node": ">=12"
+      }
+    },
+    "node_modules/yargs-parser": {
+      "version": "21.1.1",
+      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-21.1.1.tgz",
+      "integrity": "sha512-tVpsJW7DdjecAiFpbIB1e3qxIQsE6NoPc5/eTdrbbIC4h0LVsWhnoa3g+m2HclBIujHzsxZ4VJVA+GUuc2/LBw==",
+      "dev": true,
+      "license": "ISC",
+      "engines": {
+        "node": ">=12"
+      }
+    },
    "node_modules/yocto-queue": {
      "version": "0.1.0",
      "resolved": "https://registry.npmjs.org/yocto-queue/-/yocto-queue-0.1.0.tgz",
@@ -75,6 +75,7 @@
    "eslint-plugin-react-refresh": "^0.5.2",
    "globals": "^17.5.0",
    "jsdom": "^29.1.0",
+    "rollup-plugin-visualizer": "^6.0.0",
    "tailwindcss": "^4.2.2",
    "typescript": "^6.0.3",
    "typescript-eslint": "^8.59.0",
@@ -1,6 +1,7 @@
-import { defineConfig } from 'vite'
+import { defineConfig, type PluginOption } from 'vite'
 import tailwindcss from '@tailwindcss/vite'
 import react from '@vitejs/plugin-react'
+import { visualizer } from 'rollup-plugin-visualizer'
 import path from 'path'
 import { readFileSync } from 'fs'

@@ -8,7 +9,13 @@ const rootPkg = JSON.parse(readFileSync(path.resolve(__dirname, '../package.json

 // https://vite.dev/config/
 export default defineConfig({
-  plugins: [react(), tailwindcss()],
+  plugins: [
+    react(),
+    tailwindcss(),
+    // ANALYZE=true npm run build emits dist/stats.html for ad-hoc bundle
+    // inspection. Off by default so CI / production builds skip the work.
+    process.env.ANALYZE === 'true' && (visualizer({ filename: 'dist/stats.html', gzipSize: true, brotliSize: true }) as PluginOption),
+  ].filter(Boolean) as PluginOption[],
  define: {
    __APP_VERSION__: JSON.stringify(rootPkg.version),
  },
@@ -23,6 +30,26 @@ export default defineConfig({
    // our CSP (script-src 'self' blocks all inline scripts). All modern browsers
    // support <link rel="modulepreload"> natively, so the polyfill is unnecessary.
    modulePreload: { polyfill: false },
+    // The monaco chunk is intentionally large (~3 MB minified). Bumping the
+    // warning ceiling so the always-firing 500 KB limit does not drown out a
+    // genuine future regression.
+    chunkSizeWarningLimit: 1500,
+    rollupOptions: {
+      output: {
+        // Group heavyweight vendor libraries into stable chunks so a small
+        // app-code change does not bust their cache key. Each chunk is
+        // independently large enough to justify its own HTTP/2 stream.
+        // Function form (rather than the object form) because Vite 8's
+        // OutputOptions overload narrows manualChunks to the function shape.
+        manualChunks(id) {
+          if (id.includes('node_modules/monaco-editor') || id.includes('node_modules/@monaco-editor/react')) return 'monaco';
+          if (id.includes('node_modules/@xterm/')) return 'xterm';
+          if (id.includes('node_modules/recharts')) return 'charts';
+          if (id.includes('node_modules/@xyflow/react') || id.includes('node_modules/@dagrejs/dagre')) return 'flow';
+          if (id.includes('node_modules/motion/')) return 'motion';
+        },
+      },
+    },
  },
  server: {
    proxy: {