Initial commit

.github/workflows/ci.yaml

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+name: CI
+
+on:
+  pull_request:
+  push:
+    branches: [main]
+
+jobs:
+  build:
+    strategy:
+      matrix:
+        os: [ubuntu-22.04, macos-12]
+    runs-on: ${{ matrix.os }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Setup Stack
+        uses: haskell-actions/setup@v2
+        with:
+          enable-stack: true
+          stack-no-global: true
+
+      - name: Cache Stack build files
+        uses: actions/cache@v3
+        with:
+          path: |
+            ~/.stack
+            .stack-work
+          key: >-
+            ${{ runner.os }}-stack-${{
+            hashFiles('stack.yaml.lock', 'package.yaml') }}
+          restore-keys: |
+            ${{runner.os}}-stack
+
+      - name: Test
+        run: stack test --ghc-options="-O2"
+
+      - name: Copy binary to ~/.local/bin so it can be uploaded
+        run: stack install
+
+      - name: Upload ${{ runner.os }} Release
+        uses: actions/upload-artifact@v3
+        with:
+          path: ~/.local/bin/haskell-template
+          name: haskell-template_${{ runner.os }}_${{ runner.arch }}

.gitignore

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+/.stack-work
+/*.cabal

app/Main.hs

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+module Main where
+
+import Protolude (IO, putStrLn, ($))
+import Lib (sayHello)
+
+main :: IO ()
+main = do
+  putStrLn $ sayHello "World!"

changelog.md

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+# Haskell Template
+
+- 2023-11-27 - 0.0.0.0
+  - Initial release

fourmolu.yaml

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+indentation: 2
+function-arrows: leading
+comma-style: leading
+import-export-style: diff-friendly
+indent-wheres: true
+record-brace-space: false
+newlines-between-decls: 2
+haddock-style: multi-line-compact
+let-style: auto
+in-style: left-align
+respectful: true
+unicode: never

makefile

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+.PHONY: test
+test:
+	stack test
+
+.PHONY: build
+build:
+	stack build
+
+.PHONY: install
+install:
+	stack install

package.yaml

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+name: haskell-template
+version: 0.0.0.0
+synopsis: A opinionated template for Haskell projects
+description: Please check out the README for more information.
+homepage: https://github.com/Airsequel/haskell-template#readme
+license: AGPL-3.0-or-later
+author: Adrian Sieber
+maintainer: [email protected]
+copyright: Adrian Sieber
+category: Web
+
+extra-source-files:
+  - readme.md
+
+dependencies:
+  - base
+  - protolude
+
+default-extensions:
+  - NoImplicitPrelude
+  - OverloadedRecordDot
+  - OverloadedStrings
+
+ghc-options:
+  - -Wall
+  - -Wcompat
+  - -Wincomplete-record-updates
+  - -Wincomplete-uni-patterns
+  - -Wredundant-constraints
+  - -fno-warn-orphans
+
+library:
+  language: GHC2021
+  source-dirs: source
+
+executables:
+  haskell-template:
+    language: GHC2021
+    source-dirs: app
+    main: Main.hs
+    dependencies:
+      - haskell-template
+
+tests:
+  haskell-template-test:
+    language: GHC2021
+    source-dirs: tests
+    main: Spec.hs
+    dependencies:
+      - haskell-template
+      - hspec

readme.md

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+# Haskell Template
+
+Opinionated template for new Haskell projects.
+
+
+## Used Technologies
+
+- [Stack](https://docs.haskellstack.org/en/stable/README/)
+- [Fourmolu](https://fourmolu.github.io)
+- [Haskell Language Server ](https://github.com/haskell/haskell-language-server)
+- [Protolude](https://github.com/protolude/protolude)
+
+
+## Usage
+
+1. Clone this repository
+1. Rename the folder to your project name
+1. Replace all occurences of `haskell-template` with your project name
+1. Run `stack test` to build the project and run the tests
+1. Run `stack run` to run the project
+1. Run `stack install` to install the project (make it available in your PATH)

source/Lib.hs

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+module Lib where
+
+import Protolude (Text, (<>))
+
+sayHello :: Text -> Text
+sayHello name =
+  "Hello " <> name <> "!"

stack.yaml

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+resolver: lts-21.15
+packages:
+  - "."
+
+extra-deps: []

stack.yaml.lock

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+# This file was autogenerated by Stack.
+# You should not edit this file by hand.
+# For more information, please see the documentation at:
+#   https://docs.haskellstack.org/en/stable/lock_files
+
+packages: []
+snapshots:
+- completed:
+    sha256: 350737ef1c4c748f4c7ff56b6e74f2f6d15039a2f148662a8ec1aded016b80d0
+    size: 640033
+    url: https://raw.githubusercontent.com/commercialhaskell/stackage-snapshots/master/lts/21/15.yaml
+  original: lts-21.15

tests/Spec.hs

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+import Protolude (IO, ($))
+import Test.Hspec (hspec, shouldBe, describe, it)
+
+import Lib (sayHello)
+
+main :: IO ()
+main = hspec $ do
+  describe "Haskell Template" $ do
+    it "prints 'Hello World!'" $ do
+      sayHello "World" `shouldBe` "Hello World!"