ci: add GitHub Actions matrix

Basically same as agilgur5/react-signature-canvas@514dec0, but I hadn't added Travis CI yet here due to the reasons mentioned there
Fixes #1

- this is basically a mix of the Actions I helped set-up in rpt2's repo and the TSDX templates:
  - https:/ezolenko/rollup-plugin-typescript2/blob/03cfb048adcf39de56bd4566dc9a7300534a3cc1/.github/workflows/nodejs.yml
  - https:/jaredpalmer/tsdx/blob/2d7981b00b2bf7363a3eeff44ff5ff698ba58c8c/templates/basic/.github/workflows/main.yml
  - plus upgrades to all the Actions, for instance, newer `setup-node` now has caching built-in
  - and plus Codecov GH Action

.github/workflows/ci.yml

@@ -0,0 +1,34 @@
+name: CI
+on: [push]
+jobs:
+ ci:
+ name: CI - Node ${{ matrix.node-version }}, ${{ matrix.os }}
+
+ runs-on: ${{ matrix.os }}
+ strategy:
+ matrix:
+ node-version: [14.x, 16.x, 18.x] # LTS Node: https://nodejs.org/en/about/releases/
+ os: [ubuntu-latest, windows-latest, macOS-latest]
+
+ steps:
+ - name: Checkout repo
+ uses: actions/checkout@v3
+ - name: Setup Node.js ${{ matrix.node-version }}
+ uses: actions/setup-node@v3
+ with:
+ node-version: ${{ matrix.node-version }}
+ cache: 'npm'
+ - name: Install
+ run: npm ci
+
+ - name: Typecheck
+ run: npm run tsc
+ - name: Lint
+ run: npm run lint
+ - name: Build
+ run: npm run build
+
+ - name: Test w/ coverage report
+ run: npm run test:coverage
+ - name: Upload coverage report to Codecov
+ uses: codecov/codecov-action@v2