tmu
7e9401590e
The pre-commit hook is file-scoped (LEFTHOOK_FILES), so it can't naturally run the test suite. Pre-push is the right tier for it: - Runs after all commits are made but before the push leaves the machine, catching regressions that span multiple commits - ~3.5s including the tsc step (negligible vs the typical push round-trip to CI) - Offline and deterministic, same philosophy as pre-commit lefthook.yml: new pre-push section, sequential (parallel: false since there's only one command, but the explicit value documents the intent that this hook runs commands in order rather than racing). project-specs.md: updated the CHECK TIERS table to add the pre-push column with in it. Updated the rule-of-thumb list to include the pre-push tier. Updated the 'why' notes to explain why lives in pre-push rather than pre-commit (LEFTHOOK_FILES doesn't apply to the test runner).
tiny-pattern-ts
Pattern matching for TypeScript/ESM environments (F#-style, not regex).
Development
- Build:
npm run build - Test:
npm run test,npm run test:ci - Checks:
npm run check,npm run fix - Format/Fix:
npm run fix:oxfmt,npm run fix:oxlint
Tooling
- TypeScript 7 — type checker and build (
tsc). - node --test +
--experimental-strip-types— test runner (Node 22.6+, flag dropped on Node 24). - c8 — code coverage for
test:ci. - oxlint — Rust-based linter. Type-aware rules are enabled via
options.typeAware: truein.oxlintrc.json(powered byoxlint-tsgolint). - oxlint-tsgolint — type-aware linting via typescript-go (declarative via
.oxlintrc.json, no CLI flag). Catches unsafe type assertions, unnecessary type parameters, and other type-system issues that regular oxlint can't see. Source-leveloxlint-disabledirectives are used to silence known false positives (e.g.,expectTypeOf()in test files). - oxfmt — Rust-based formatter (Prettier-compatible). Formats JS/TS, JSON/JSONC, YAML, Markdown, MDX, and more; built-in
package.jsonkey sorting replacessort-package-json. - cspell — spell checking.
- knip — finds unused dependencies, exports, and files. Scoped via
--include dependencies,exports,filesto skip the noisytypescategory (which produces false positives for libraries whose exported types are part of the public API). - publint — validates
package.jsonfor ESM publishing correctness. Runs on publish only (in CI), not as part ofnpm run check. - @arethetypeswrong/cli (
attw) — validates.d.tsdeclarations against multiple module-resolution scenarios. Runs on publish only with--profile esm-only(the package is intentionally ESM-only). - lefthook — git pre-commit hooks.
Requirements
- Node.js >= 26 (engines field; pinned via
.node-version).
VSCode integration
- Recommended extensions: see
.vscode/extensions.json(oxc, cspell). - TypeScript 7 is used via the
typescriptteam.native-previewextension. - oxc extension provides oxlint squiggles and oxfmt format-on-save.
Workflows
- Version updates via
npm version. - Publishing via GitHub Actions on tagged commits (see
.github/workflows/ci.yml); thepublishjob runspublish:publintandpublish:attwbeforenpm publish.
Script prefix convention
Script names follow a prefix convention that signals when they run:
check:*— read-only verification. Aggregated bynpm run check. Used in pre-commit hooks and CI's build job.fix:*— mutating counterpart ofcheck:*. Run individually (nonpm run fixaggregator by design — fixes should be intentional, not batched).test:*— test scripts.npm run testruns the full suite;test:unit/test:ciare scope-specific variants.publish:*— runs only at publish time, in the CIpublishjob (immediately beforenpm publish). There is no localnpm run publishscript — publishing is CI-only by policy.
Contribution guidelines
- Commit signing (GPG).
- Set up commit message template:
npm run use:git-commit-message. - See
commit-message-template. - Type-only tests use
expect-type'sexpectTypeOf(...)insidenode --testcases.