ESLint Plugin Start (e2e)

Runs end-to-end linting tests against @tanstack/eslint-plugin-start.

Prereqs

• pnpm install at repo root
• hyperfine installed (used for perf benchmarking)

Tests

• Unit-style e2e via Vitest: pnpm -C e2e/eslint-plugin-start test:e2e
• Lint all fixtures: pnpm -C e2e/eslint-plugin-start test:lint

Perf benchmark (hyperfine)

Generates synthetic fixtures (gitignored) and measures lint time.

Modes

• small: no noise files, just a route + component chain. Measures the cost of the "real" rule work.
• huge: thousands of irrelevant files + a route + component chain. Measures gating overhead across a large codebase.

Bench commands

• pnpm -C e2e/eslint-plugin-start perf:bench:small
• pnpm -C e2e/eslint-plugin-start perf:bench:huge

Optional env vars (huge mode):

• PERF_NOISE_FILES=5000 (default)
• PERF_CHAIN_DEPTH=50 (default)

Notes:

• perf:lint only targets src/perf/generated/** so results aren’t dominated by other fixtures.
• Use a fresh terminal and close editors/watchers for stable numbers.
• If you want to compare versions, run the same command after each change and keep env vars constant.
• Optional profiling (writes a *.cpuprofile file):
  • node --cpu-prof --cpu-prof-name=cpu.cpuprofile ./node_modules/eslint/bin/eslint.js "src/perf/generated/**/*.{ts,tsx}"