Migrate to GitHub actions

.github/workflows/README.md

@@ -0,0 +1,22 @@
+# CI Workflows
+
+## Overview
+
+- [Build](build.yml)
+  - Build and test Haskell code
+- [Draft](draft.yml)
+  - Create a GH draft release with a static binary
+- [Release](release.yml)
+  - Upload the package and docs to Hackage (release candidate)
+
+## Events
+
+```mermaid
+graph LR;
+    event[GH Event]-->|on push|Build;
+    event-->|tag created|Draft;
+    Draft-->|create draft release|End;
+    event-->|release published|Release;
+    Release-->|upload artifacts to Hackage - release candidate|End;
+    Build-->End;
+```

.github/workflows/draft.yml

@@ -0,0 +1,21 @@
+name: Release package to Github
+
+on:
+  push:
+    tags:
+      - 'v*'
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+
+      - name: Create release
+        uses: softprops/action-gh-release@v1
+        with:
+          body_path: CHANGELOG.md
+          draft: true
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/release.yml

@@ -0,0 +1,25 @@
+# The present workflow was made based on the following references:
+# - https://github.com/tfausak/strive/blob/main/.github/workflows/ci.yaml
+# - https://hackage.haskell.org/upload
+---
+name: Release
+
+on:
+  release:
+    types:
+      - published
+
+concurrency:
+  group: release-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  cabal-upload:
+    uses: stackbuilders/reusable-workflows/.github/workflows/cabal-upload.yml@main
+    with:
+      ghc_version: "8.10"
+      cabal_version: "3.6"
+      ignore_uploaded_package: true
+    secrets:
+      HACKAGE_USERNAME: ${{ secrets.HACKAGE_USERNAME }}
+      HACKAGE_PASSWORD: ${{ secrets.HACKAGE_PASSWORD }}

atomic-write.cabal

@@ -102,7 +102,7 @@ test-suite atomic-write-test
                      , text
                      , bytestring >= 0.10.4
                      , hspec
-  
+
   build-tools: hspec-discover >= 2.0 && < 3.0
 
   default-language:    Haskell2010