ci: add native image build and release workflow

.github/scripts/pre-release.sh

@@ -0,0 +1,16 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+releases=$1
+debug=${2:-}
+
+[[ -n "$debug" ]] && tree
+
+mkdir -p "$releases"
+artifacts=(bf-x86_64-apple-darwin bf-x86_64-linux)
+
+for artifact in "${artifacts[@]}"; do
+  chmod +x "$artifact/bf"
+  tar cvfz "$releases/$artifact.tar.gz" "$artifact/bf"
+done

.github/test.sh → .github/scripts/test.sh

@@ -12,9 +12,9 @@ if [ ! -f "$file" ]; then
 fi
 
 if [ -n "$input" ]; then
-  output=$(echo -n "$input" | scala-cli run . -q -- "$(cat "$file")")
+  output=$(echo -n "$input" | scala-cli run . -q -- "$(< "$file")")
 else
-  output=$(scala-cli run . -q -- "$(cat "$file")")
+  output=$(scala-cli run . -q -- "$(< "$file")")
 fi
 
 if [ "$output" = "$expected" ]; then

.github/workflows/ci.yml

@@ -61,5 +61,70 @@ jobs:
             fi
 
             echo "Running examples/$name.b $input"
-            .github/test.sh "$name" "$expected" "$input"
+            .github/scripts/test.sh "$name" "$expected" "$input"
           done
+
+  build-native:
+    strategy:
+      matrix:
+        os: [ macos-latest, ubuntu-latest ]
+        include:
+          - name: MacOS
+            os: macos-latest
+            artifact: bf-x86_64-apple-darwin
+          - name: Ubuntu
+            os: ubuntu-latest
+            artifact: bf-x86_64-linux
+
+    name: Graal Build
+    runs-on: ${{ matrix.os }}
+    needs: [ test, example ]
+
+    steps:
+      - uses: actions/checkout@v4
+      - uses: coursier/cache-action@v6
+      - uses: VirtusLab/scala-cli-setup@main
+        with:
+          power: true
+
+      - name: Build
+        run: |
+          scala-cli --power package . -o ./out/bf --native-image \
+            --graalvm-java-version 21 \
+            --graalvm-version 21  \
+            --graalvm-args "--verbose" \
+            --graalvm-args "--no-fallback" \
+            --graalvm-args "--native-image-info" \
+            --graalvm-args "-H:+ReportExceptionStackTraces" \
+            --graalvm-args "-H:-UseServiceLoaderFeature"
+
+      - name: Upload artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: ${{ matrix.artifact }}
+          path: ./out/bf
+          if-no-files-found: error
+          retention-days: 1
+
+  release:
+    name: Release
+    runs-on: ubuntu-latest
+    needs: [ test, example, build-native ]
+    if: "startsWith(github.ref, 'refs/tags/')"
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Download artifacts
+        uses: actions/download-artifact@v4
+
+      - name: Prepare release
+        run: .github/scripts/pre-release.sh releases
+
+      - name: Release
+        uses: softprops/action-gh-release@v2
+        with:
+          generate_release_notes: true
+          fail_on_unmatched_files: true
+          files: releases/*
+          token: ${{ secrets.GITHUB_TOKEN }}

README.md

@@ -18,7 +18,7 @@ scala-cli test .
 
 You can find example programs in the `examples/` directory and run them using:
 ```bash
-scala-cli run . -- "$(cat path-to-example)"
+scala-cli run . -- "$(< path-to-example)"
 ```
 All examples are sourced from [wikipedia.org](https://en.wikipedia.org/wiki/Brainfuck#Examples) and [brainfuck.org](https://brainfuck.org/).
 

project.scala

@@ -1,6 +1,7 @@
 //> using scala "3.3.5"
-//> using jvm 17
+//> using jvm 21
 
+//> using options -deprecation -feature -explain
 //> using options -Wunused:imports,implicits,privates -Werror
 //> using option -Ykind-projector