chore: add TypeScript build step (#675)

* feat: setup typescript

* feat: emit into "dist" directory

* feat: make tests green again

* feat: rename first test to use typescript

* feat: add prepack instructions

* feat: migrate first src file

* feat: please formatter

* feat: please prettier

* feat: build before linting

* feat: use WIP eslint config, ignore fixtures

* feat: don't need to build before linting w/ new eslint

* Revert "feat: don't need to build before linting w/ new eslint"

This reverts commit 949f862.

* feat: make dist/bin.js executable

* chore: exec dist file

* feat: correct order for stubbing

* feat: upgrade target to es6

* feat: remove @ava/typescript and run tests against dist folder

* chore: make prettier happy

* feat: support linting README.md

* chore: use npm prerelease of @netlify/eslint-config-node

as recommended in #675 (comment)

* feat: make prepush hook run tsc, too

* feat: don't forget to run "build" in CI

* chore: update eslint-config to release

* chore: extend linting and formatting to TS files

* refactor: convert export type

* chore: dont emit sourcemaps

* chore: omit tsbuildinfo from dist files

* chore: remove tsbuildinfo from .gitignore, only ship .js and .d.ts

Co-authored-by: Netlify Team Account 1 <netlify-team-account-1@users.noreply.github.com>
Co-authored-by: Eduardo Bouças <mail@eduardoboucas.com>

.gitignore

@@ -15,3 +15,4 @@ node_modules
 benchmarks/fixtures/*/package*.json
 benchmarks/output
 .delta-t.json
+/dist

benchmarks/run.sh

@@ -1,4 +1,5 @@
 #!/usr/bin/env bash
 npm ci --prefix benchmarks/fixtures
+npm run build
 node benchmarks/zisi.js > .delta.largeDepsZisi
 node benchmarks/esbuild.js > .delta.largeDepsEsbuild