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iptvnator/tools/performance/project.json
4grayandClaude Fable 5.1 d3b6e548cc ci(performance): fail when the web app's initial bytes grow (#1694)
Third step of the performance-journeys ratchet, stacked on #1693 (which is stacked on #1692; merge in order, GitHub retargets each to `master`).

- New `Initial bytes ratchet` job in `.github/workflows/ci.yml` (ubuntu-latest): install, `pnpm nx build web --skip-nx-cache` (production configuration, the one users download), then `pnpm run perf:initial-bytes:check`. The job fails when `renderer.initialBytes` exceeds `tools/performance/journey-baselines.json`.
- `dist/performance/` is uploaded as the `performance-journey-summary` artifact on every run, so a failing or tightenable run carries its evidence.
- After review: the job first runs the new `tools/performance/check-baseline-direction.mjs`, which compares `journey-baselines.json` with the revision the change is measured against (the target branch of a pull request, `github.event.before` for a `master` push, `master` for a manual dispatch) and fails on any raised enforced limit (`value × toleranceRatio`), any widened or newly added tolerance, or any removed entry, so a PR cannot grow the payload and raise the baseline to match (lowered limits and new entries pass; a target branch without the file has nothing to weaken). Node tests cover it.
- Docs: the performance-journeys contract and the validation map name the job, and the contract now states that this runner is the canonical measurer (take baseline values from its output, not from a local build).

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
2026-09-26 13:44:01 +02:00

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{
"$schema": "../../node_modules/nx/schemas/project-schema.json",
"name": "performance-tools",
"projectType": "library",
"sourceRoot": "tools/performance",
"tags": ["scope:tools", "domain:performance", "type:tool"],
"targets": {
"test": {
"executor": "nx:run-commands",
"cache": true,
"inputs": [
"{projectRoot}/*.mjs",
"{projectRoot}/*.json",
{ "externalDependencies": ["parse5"] }
],
"options": {
"command": "node --test tools/performance/measure-initial-bytes.test.mjs tools/performance/check-journey-ratchet.test.mjs tools/performance/check-baseline-direction.test.mjs",
"cwd": "{workspaceRoot}"
}
},
"lint": {
"inputs": [
"default",
"{workspaceRoot}/eslint.config.mjs",
"{workspaceRoot}/tools/eslint-rules/**/*",
"{workspaceRoot}/tools/eslint/**/*"
],
"command": "eslint \"tools/performance/*.mjs\""
}
}
}