chore(tools): set up CI to run tests on every push

Author: jvanbruegge

.github/workflows/ci.yml

@@ -0,0 +1,34 @@
+name: Build
+on:
+  push:
+    paths-ignore:
+      - '**.md'
+  pull_request:
+    paths-ignore:
+      - '**.md'
+
+jobs:
+  build:
+    name: build
+    runs-on: ubuntu-20.04
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v2
+
+      - name: Install pnpm
+        run: sudo npm install -g pnpm
+
+      - name: Cache dependencies
+        uses: actions/cache@v1
+        with:
+          path: ~/.pnpm-store
+          key: pnpm-store-${{ hashFiles('pnpm-lock.yaml') }}
+
+      - name: Install dependencies
+        run: pnpm install
+
+      - name: Build package
+        run: pnpm run build
+
+      - name: Run tests
+        run: pnpm test

README.md

@@ -1,5 +1,7 @@
 # Commithelper
 
+[![Build](https://github.com/jvanbruegge/commithelper/actions/workflows/ci.yml/badge.svg)](https://github.com/jvanbruegge/commithelper/actions/workflows/ci.yml)
+
 A tool to create and lint commit messages. It has two modes `prompt` and `check`. The former asks you questions to create a well-formed commit message, while the latter lints a given commit message.
 
 ![A screenshot of a terminal showing the tool](./console.png)