chore: consistent project setup

- Update devDeps
- Run lint after tests, not before
- Push to github before publishing, not after
- Use GitHub Actions for CI instead of appveyor/travis
- Remove outdated CoC, PR template, etc.

PR-URL: #11
Credit: @claudiahdz
Close: #11
Reviewed-by: @isaacs

.github/settings.yml

@@ -0,0 +1,2 @@
+---
+_extends: 'open-source-project-boilerplate'

.github/workflows/ci.yml

@@ -0,0 +1,94 @@
+---
+################################################################################
+# Template - Node CI
+#
+# Description:
+#   This contains the basic information to: install dependencies, run tests,
+#   get coverage, and run linting on a nodejs project. This template will run
+#   over the MxN matrix of all operating systems, and all current LTS versions
+#   of NodeJS.
+#
+# Dependencies:
+#   This template assumes that your project is using the `tap` module for
+#   testing. If you're not using this module, then the step that runs your
+#   coverage will need to be adjusted.
+#
+################################################################################
+name: Node CI
+
+on: [push, pull_request]
+
+jobs:
+  build:
+    strategy:
+      fail-fast: false
+      matrix:
+        node-version: [10.x, 12.x, 13.x]
+        os: [ubuntu-latest, windows-latest, macOS-latest]
+
+    runs-on: ${{ matrix.os }}
+
+    steps:
+      # Checkout the repository
+      - uses: actions/checkout@v2
+        # Installs the specific version of Node.js
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v1
+        with:
+          node-version: ${{ matrix.node-version }}
+
+      ################################################################################
+      # Install Dependencies
+      #
+      #   ASSUMPTIONS:
+      #     - The project has a package-lock.json file
+      #
+      #   Simply run the tests for the project.
+      ################################################################################
+      - name: Install dependencies
+        run: npm ci
+
+      ################################################################################
+      # Run Testing
+      #
+      #   ASSUMPTIONS:
+      #     - The project has `tap` as a devDependency
+      #     - There is a script called "test" in the package.json
+      #
+      #   Simply run the tests for the project.
+      ################################################################################
+      - name: Run tests
+        run: npm test
+
+      ################################################################################
+      # Run coverage check
+      #
+      #   ASSUMPTIONS:
+      #     - The project has `tap` as a devDependency
+      #     - There is a script called "coverage" in the package.json
+      #
+      #   Coverage should only be posted once, we are choosing the latest LTS of
+      #   node, and ubuntu as the matrix point to post coverage from. We limit
+      #   to the 'push' event so that coverage ins't posted twice from the
+      #   pull-request event, and push event (line 3).
+      ################################################################################
+      - name: Run coverage report
+        if: github.event_name == 'push' && matrix.node-version == '12.x' && matrix.os == 'ubuntu-latest'
+        run: npm run coverage
+        env:
+          # The environment variable name is leveraged by `tap`
+          COVERALLS_REPO_TOKEN: ${{ secrets.COVERALLS_REPO_TOKEN }}
+
+      ################################################################################
+      # Run linting
+      #
+      #   ASSUMPTIONS:
+      #     - There is a script called "lint" in the package.json
+      #
+      #   We run linting AFTER we run testing and coverage checks, because if a step
+      #   fails in an GitHub Action, all other steps are not run. We don't want to
+      #   fail to run tests or coverage because of linting. It should be the lowest
+      #   priority of all the steps.
+      ################################################################################
+      - name: Run linter
+        run: npm run lint

.gitignore

@@ -1,3 +1,3 @@
 /node_modules
 /.nyc_output
-/test/cache
+/coverage