Add CI runner (#5)

Reviewed-on: elland/haddock2#5
Co-authored-by: Igor Ranieri <igor@elland.me>
Co-committed-by: Igor Ranieri <igor@elland.me>

.forgejo/workflows/test.yaml

@@ -0,0 +1,99 @@
+name: Haskell CI
+on:
+  pull_request:
+    branches:
+      - dev
+      - main
+  push:
+    branches:
+      - main
+
+jobs:
+  build:
+    runs-on: docker
+    container:
+      image: elland/haddock2:latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+      - name: Check versions
+        run: |
+          ghc --version
+          cabal --version
+          node --version
+      - name: Cache Cabal packages
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cabal/packages
+            ~/.cabal/store
+            dist-newstyle
+          key: ${{ runner.os }}-haskell-9.10-cabal-${{ hashFiles('**/*.cabal', '**/cabal.project') }}
+          restore-keys: |
+            ${{ runner.os }}-haskell-9.10-cabal-
+      - name: Update Cabal package index
+        run: cabal update
+      - name: Configure project
+        run: cabal configure --enable-tests --enable-benchmarks
+      - name: Build dependencies
+        run: cabal build --only-dependencies --enable-tests --enable-benchmarks
+      - name: Build project
+        run: cabal build --enable-tests --enable-benchmarks
+      - name: Run documentation build
+        run: cabal haddock
+
+  test:
+    runs-on: docker
+    container:
+      image: elland/haddock2:latest
+    needs: build
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+      - name: Cache Cabal packages
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cabal/packages
+            ~/.cabal/store
+            dist-newstyle
+          key: ${{ runner.os }}-haskell-9.10-cabal-${{ hashFiles('**/*.cabal', '**/cabal.project') }}
+          restore-keys: |
+            ${{ runner.os }}-haskell-9.10-cabal-
+      - name: Update Cabal package index
+        run: cabal update
+      - name: Configure project
+        run: cabal configure --enable-tests --enable-benchmarks
+      - name: Build dependencies
+        run: cabal build --only-dependencies --enable-tests --enable-benchmarks
+      - name: Build project
+        run: cabal build --enable-tests --enable-benchmarks
+      - name: Run tests
+        run: cabal test --test-show-details=direct
+
+  fourmolu:
+    runs-on: docker
+    container:
+      image: elland/haddock2:latest
+    needs: build
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+      - name: Run fourmolu
+        run: |
+          find src test app -name "*.hs" -exec fourmolu --check-idempotence {} \; 2>/dev/null || true
+          find src test app -name "*.hs" -exec fourmolu --mode check {} \;
+
+  hlint:
+    runs-on: docker
+    container:
+      image: elland/haddock2:latest
+    needs: build
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+      - name: Run hlint
+        run: |
+          if [ -d src ]; then hlint src/; fi
+          if [ -d test ]; then hlint test/; fi  
+          if [ -d app ]; then hlint app/; fi

Dockerfile

@@ -0,0 +1,36 @@
+FROM haskell:9.10.2-bullseye AS builder
+
+RUN apt-get update && apt-get install -y curl git && rm -rf /var/lib/apt/lists/*
+
+RUN curl -fsSL https://deb.nodesource.com/setup_22.x | bash - && \
+    apt-get install -y nodejs && \
+    rm -rf /var/lib/apt/lists/*
+
+RUN cabal update && \
+    cabal install --install-method=copy --installdir=/usr/local/bin \
+    fourmolu hlint cabal-gild
+
+WORKDIR /workspace
+
+FROM haskell:9.10.2-bullseye
+
+RUN apt-get update && apt-get install -y \
+    libgmp10 \
+    curl \
+    && rm -rf /var/lib/apt/lists/*
+
+RUN curl -fsSL https://deb.nodesource.com/setup_22.x | bash - && \
+    apt-get install -y nodejs && \
+    rm -rf /var/lib/apt/lists/*
+
+RUN cabal update
+
+COPY --from=builder /usr/local/bin/cabal /usr/local/bin/
+COPY --from=builder /usr/local/bin/fourmolu /usr/local/bin/
+COPY --from=builder /usr/local/bin/hlint /usr/local/bin/
+COPY --from=builder /usr/local/bin/cabal-gild /usr/local/bin/
+
+WORKDIR /workspace
+
+CMD [ "bash" ]
+

Makefile

@@ -1,9 +1,44 @@
 .PHONY: help
-help: ## Show this help.
+help: ## Show this help
 	@grep -E '^[a-zA-Z_-]+:.*?## .*$$' $(MAKEFILE_LIST) | sort | awk 'BEGIN {FS = ":.*?## "}; {printf "\033[36m%-30s\033[0m %s\n", $$1, $$2}'
 
-.PHONY: format
+.PHONY: build
-format:
+build: ## Build the project
+	cabal build
+
+.PHONY: test
+test: ## Run tests
+	cabal test --test-show-details=direct
+
+.PHONY: clean
+clean: ## Clean build artifacts
+	cabal clean
+
+.PHONY: fourmolu
+fourmolu: ## Format Haskell code
 	find . -type f -name "*.hs" ! -path "./dist-newstyle/*" -exec fourmolu -i {} +
+
+.PHONY: fourmolu-check
+fourmolu-check: ## Check if code is formatted
+	find . -type f -name "*.hs" ! -path "./dist-newstyle/*" -exec fourmolu --mode check {} \;
+
+.PHONY: lint
+lint: ## Run hlint
+	hlint src test app
+
+.PHONY: cabal-gild
+cabal-gild: ## Format cabal file
 	cabal-gild --io=haddock2.cabal
 
+.PHONY: format
+format: fourmolu cabal-gild ## Run all formatters
+
+.PHONY: check
+check: fourmolu-check lint ## Run all checks (CI-style)
+
+.PHONY: ci
+ci: build test check ## Run full CI pipeline locally
+
+.PHONY: docs
+docs: ## Generate documentation
+	cabal haddock --haddock-hyperlink-source

src/Lexer.hs

@@ -69,7 +69,7 @@ located :: Parser a -> Parser (SourcePos, a)
 located p = (,) <$> getPosition <*> p
 
 tokenise :: [Parser a] -> Parser [(SourcePos, a)]
-tokenise = sequence . map located
+tokenise = mapM located
 
 lexer :: String -> Either ParseError [LocatedToken]
 lexer = Parsec.runParser lexText initialParserState "input" . Text.pack
@@ -146,7 +146,7 @@ delimitedNoTrailing openP closeP openTok = asList <$> delimitedAsTuple (openTok
   asList (a, tok, _) = [a, tok]
 
 delimitedSymmetric :: Parser a -> Token -> Token -> Parser [LocatedToken]
-delimitedSymmetric s t1 t2 = delimited s s t1 t2
+delimitedSymmetric s = delimited s s
 
 eol :: Parser ()
 eol = void "\n" <|> void "\r\n" <|> Parsec.eof

src/Parser/Util.hs

@@ -13,7 +13,9 @@ import Text.Parsec.Pos (updatePosChar)
 Return everything consumed except for the end pattern itself.
 -}
 takeUntil :: Text -> Parser Text
-takeUntil end_ = Text.dropEnd (Text.length end_) <$> requireEnd (scan p (False, end)) >>= gotSome
+takeUntil end_ =
+  requireEnd (scan p (False, end))
+    >>= gotSome . Text.dropEnd (Text.length end_)
  where
   end = Text.unpack end_
 

src/Types.hs

@@ -9,6 +9,8 @@ module Types (
 )
 where
 
+import Data.Foldable (fold)
+
 newtype Document = Document
   { meta :: Meta
   }
@@ -28,6 +30,7 @@ data Since = Since
 
 -- Could have a better type?
 type Version = [Int]
+
 type Package = String
 
 data DocMarkup mod id
@@ -51,78 +54,78 @@ data DocMarkup mod id
   | -- | Bold __bold text__
     DocBold (DocMarkup mod id)
   | {- | Unordered lists
-      * this
+     * this
-      or
+     or
-      - this
+     - this
     -}
     DocUnorderedList [DocMarkup mod id]
   | {- | Ordered lists
-      1. this
+     1. this
-      or
+     or
-      (1) this
+     (1) this
     -}
     DocOrderedList [(Int, DocMarkup mod id)]
   | {- | Definition lists
-      [term] a term
+     [term] a term
-      [another term] another definition
+     [another term] another definition
     -}
     DocDefinitionList [(DocMarkup mod id, DocMarkup mod id)]
   | {- | Code blocks
-      @
+     @
-      a code block in here
+     a code block in here
-      with multiple lines
+     with multiple lines
-      @
+     @
 
-      Or with bird tracks:
+     Or with bird tracks:
-      > some code
+     > some code
-      > goes here
+     > goes here
     -}
     DocCodeBlock (DocMarkup mod id)
   | {- | Hyperlinks
-      __marked__:
+     __marked__:
-      <http://example.com>
+     <http://example.com>
-      <http://example.com label text>
+     <http://example.com label text>
-      __Auto-detected URLs__:
+     __Auto-detected URLs__:
-      http://example.com
+     http://example.com
-      https://example.com
+     https://example.com
-      ftp://example.com
+     ftp://example.com
-      __Markdown style__
+     __Markdown style__
-      [link text](http://example.com)
+     [link text](http://example.com)
-      [link text]("Module.Name")
+     [link text]("Module.Name")
     -}
     DocHyperlink (Hyperlink (DocMarkup mod id))
   | {- | Pictures
-        <<image.png>>
+       <<image.png>>
-        <<image.png title text>>
+       <<image.png title text>>
 
-        __Markdown Images__
+       __Markdown Images__
 
-        ![alt text](image.png)
+       ![alt text](image.png)
     -}
     DocPicture Picture
   | {- | Inline math expressions
-      \(mathematical expression\)
+     \(mathematical expression\)
     -}
     DocMathInline String
   | {- | Math multiline display
-      \[
+     \[
-      mathematical expression
+     mathematical expression
-      in multiple lines
+     in multiple lines
-      \]
+     \]
     -}
     DocMathDisplay String
   | {- | Anchors, no spaces allowed
-      #anchor-name#
+     #anchor-name#
     -}
     DocAnchor String
   | {- | Property descriptions
-      prop> property description
+     prop> property description
     -}
     DocProperty String
   | {- | Examples
-      >>> expression
+     >>> expression
-      result line 1
+     result line 1
-      result line 2
+     result line 2
     -}
     DocExamples [Example]
   | -- | Header
@@ -136,7 +139,7 @@ instance Semigroup (DocMarkup mod id) where
 
 instance Monoid (DocMarkup mod id) where
   mempty = DocEmpty
-  mconcat = foldr (<>) mempty
+  mconcat = fold
 
 data ModuleLink id = ModuleLink
   { name :: String

test/Spec.hs

@@ -1,16 +1,15 @@
 {-# LANGUAGE OverloadedStrings #-}
 {-# OPTIONS_GHC -Wno-orphans #-}
 
-import Test.Hspec
+import Data.String (IsString (..))
-
+import Data.Text (Text)
+import GHC.Stack
 import Identifier (Identifier)
 import Lexer
 import Parser
 import Types
 
-import Data.String (IsString (..))
+import Test.Hspec
-import Data.Text (Text)
-import GHC.Stack
 import Text.Parsec.Pos
 
 main :: IO ()
@@ -34,9 +33,9 @@ main = hspec $ do
 
   describe "Parser" do
     it "Bold" do
-      "__bold__" `shouldParseTo` (DocBold (DocString "bold"))
+      "__bold__" `shouldParseTo` DocBold (DocString "bold")
     it "Emphasis" do
-      "/emphasis/" `shouldParseTo` (DocEmphasis (DocString "emphasis"))
+      "/emphasis/" `shouldParseTo` DocEmphasis (DocString "emphasis")
 
 ------------
 -- Tests
@@ -57,6 +56,7 @@ modules = do
     `shouldLexTo` [ (1, 2, Module "OtherModule.Name")
                   , (1, 18, Anchor "myAnchor")
                   ]
+
 link :: Expectation
 link =
   "[link to](http://some.website)"