pipe/README.md
trvon adf898be19
feat(verify): default --baseline to <path>/.pipe-baseline.json
`pipe verify .` failed with "verify needs --baseline" even in a repo
whose baseline sits where the README's CI recipe writes it. nuwayze's
scripts/testing/pipe_state_flow_gate.sh commits exactly that file,
.pipe-baseline.json at the repo root, so every verify there had to
repeat the path.

Without --baseline, verify now reads <path>/.pipe-baseline.json when it
exists and says so on stderr ("pipe: no --baseline given; using ..."),
so a run never silently picks a file nobody named. With neither, the
error names both remedies: pass --baseline, or write the conventional
file with `pipe check <path> --write-baseline <path>/.pipe-baseline.json`
before the fix. pipe had no baseline-name constant; defaultBaselineName
is now the one place it is spelled.

Tests (test/verify_default_baseline_test.dart): an explicit --baseline
wins and announces nothing; the conventional file is used and
announced; with neither the error carries both remedies; and end to
end, `pipe verify <copy>` against a baseline written at the copy's
root reads it (--expect-resolved fails on the 28 still-present
findings). README and docs/usage.md show the shorter form.

On nuwayze-w3, `pipe verify /Users/.../nuwayze-w3` with no flag reads
its .pipe-baseline.json (65 accepted findings). 225 tests pass.
2026-09-25 20:11:34 -06:00

3.7 KiB

pipe

Static state-flow analysis for Dart and Flutter apps. pipe maps how state moves through an app's state management and reports the breakages that make it behave worse than the code suggests: a spinner that never stops, an error the user never sees, a tap that does nothing.

It is built to guide agents and reviewers on large codebases, not to score style. Every finding carries file:line evidence, a confidence, a severity and a remediation, and every report states how much of the project it covered.

Coverage

State management Support
BLoC / Cubit (on<Event>, emit, sealed, abstract, enum or freezed unions) yes
Single state class with a bool loading-style flag (copyWith) yes
Riverpod (FutureProvider, StreamProvider, NotifierProvider, .family, ...) yes
provider + ChangeNotifier yes, with limits
C++ enum class state (experimental, via libclang) see design
Firestore query inventory (pipe queries, no rules) see queries
Navigation, layout, theming no

Quick start

dart pub get
tool/build_release.sh                 # prints the binary's path under build/
# below, `pipe` is that binary on your PATH (or `dart run bin/pipe.dart`)

pipe index <path>                     # can the project be analysed?
pipe check <path>                     # ranked findings
pipe suggest <path>                   # what to fix first, per file
pipe guide <path> --format agent      # a brief to paste into an agent prompt
pipe queries <path>                   # every Firestore query, as typed records

In CI, accept today's findings once and fail only on new ones:

pipe check . --write-baseline .pipe-baseline.json
pipe check . --baseline .pipe-baseline.json --fail-on warning
pipe verify . --expect-resolved       # after a fix; reads .pipe-baseline.json

Rules

Rule Meaning
emitted-not-rendered A state is emitted but no UI code matches it, so the user never sees it.
rendered-not-emitted A UI branch no emitted state can reach: dead UI.
loading-not-reset An in-progress state whose failure path never resolves, so the spinner sticks.
loading-flag-not-reset The same, for a bool loading flag left set after an error.
event-without-handler A dispatched event with no on<Event>, so the interaction does nothing.
dead-handler An on<Event> that nothing dispatches or constructs.
riverpod-async-gap An async provider read in the UI whose error or loading state is never handled.
notifier-never-notifies A ChangeNotifier method changes observable state without notifying.
notifier-inert-consumer A consumed notifier that never notifies, so its consumers never rebuild.
provider-read-in-build A Listenable read without subscribing inside build, so it can render stale.
notifier-field-unread A public member of a consumed notifier that nothing reads.
provider-created-in-build A provider constructed in build, so its state is recreated on rebuild.

Measured precision, recall and the limits of each rule are in docs/rules.md.

Documentation

  • Usage: commands, flags, SDK discovery, CI ratcheting, verification, fix order, agent briefs.
  • Rules: what each rule claims, the evidence behind it, and how precision and recall are measured.
  • Firestore queries: the query inventory, its schema and adapter config.
  • Design: why pipe exists, how it is built, the state-model seam, and the experimental C++ front end.
  • Development: building, performance, tests and hooks.