github/workflows: Add GitHub Actions

Author: woodruffw

.github/workflows/ci.yml

@@ -0,0 +1,33 @@
+name: CI
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+  schedule:
+    # run CI every day even if no PRs/merges occur
+    - cron: '0 12 * * *'
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Format
+        run: cargo fmt && git diff --exit-code
+      - name: Lint
+        run: |
+          rustup update
+          rustup component add clippy
+          cargo clippy -- -D warnings
+  test:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Build
+      run: cargo build
+
+    - name: Test
+      run: cargo test

.github/workflows/release.yml

@@ -0,0 +1,28 @@
+on:
+  push:
+    tags:
+      - 'v*'
+
+name: release
+
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: create release
+        id: create_release
+        uses: actions/create-release@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          tag_name: ${{ github.ref }}
+          release_name: Release ${{ github.ref }}
+          draft: false
+          prerelease: ${{ contains(github.ref, 'pre') || contains(github.ref, 'rc') }}
+
+      - name: publish to crates.io
+        run: |
+          echo ${{ secrets.CRATES_IO_TOKEN }} | cargo login
+          cargo publish