Add AOT compilation

.github/workflows/aot-publish.yml

@@ -0,0 +1,37 @@
+name: Ahead-of-time compile & publish
+on:
+  push:
+    branches: [ "main" ]
+    tags: ["v*"]
+
+jobs:
+  aot-compile:
+    name: AOT compile on ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [macos-14, windows-2022, ubuntu-24.04, ubuntu-24.04-arm]
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: graalvm/setup-graalvm@v1
+        with:
+          java-version: '23'
+          distribution: 'graalvm'
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          native-image-job-reports: 'true'
+
+      - name: Setup SBT
+        uses: sbt/setup-sbt@v1
+
+      - name: Build native image
+        run: sbt GraalVMNativeImage/packageBin
+
+      - name: Upload binary
+        uses: actions/upload-artifact@v4
+        with:
+          name: jelly-cli-${{ matrix.os }}
+          path: target/graalvm-native-image/jelly-cli
+
+# TODO: we just build and upload the artifact.
+# We should also publish it to GitHub releases.

.github/workflows/aot-test.yml

@@ -0,0 +1,29 @@
+name: Ahead-of-time compilation test
+on:
+  pull_request:
+    branches: [ "main" ]
+
+jobs:
+  build:
+    name: AOT test on ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [macos-14, windows-2022, ubuntu-24.04]
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: graalvm/setup-graalvm@v1
+        with:
+          java-version: '23'
+          distribution: 'graalvm'
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          native-image-job-reports: 'true'
+
+      - name: Setup SBT
+        uses: sbt/setup-sbt@v1
+
+      - name: Build native image
+        env:
+          DEV_BUILD: true
+        run: sbt GraalVMNativeImage/packageBin

build.sbt

@@ -8,10 +8,16 @@ resolvers +=
 lazy val jenaV = "5.3.0"
 lazy val jellyV = "2.8.0+14-4181e89a-SNAPSHOT"
 
+def isDevBuild: Boolean =
+  sys.env.get("DEV_BUILD").exists(s => s != "0" && s != "false")
+
 lazy val root = (project in file("."))
-  .enablePlugins(BuildInfoPlugin)
+  .enablePlugins(
+    BuildInfoPlugin,
+    GraalVMNativeImagePlugin,
+  )
   .settings(
-    name := "cli",
+    name := "jelly-cli",
     libraryDependencies ++= Seq(
       "org.apache.jena" % "jena-core" % jenaV,
       "org.apache.jena" % "jena-arq" % jenaV,
@@ -25,4 +31,9 @@ lazy val root = (project in file("."))
       libraryDependencies,
     ),
     buildInfoPackage := "eu.neverblink.jelly.cli",
+
+    // GraalVM settings
+    Compile / mainClass := Some("eu.neverblink.jelly.cli.App"),
+    // Do a fast build if it's a dev build
+    graalVMNativeImageOptions := (if (isDevBuild) Seq("-Ob") else Seq())
   )

project/plugins.sbt

@@ -1,3 +1,3 @@
 addSbtPlugin("com.eed3si9n" % "sbt-buildinfo" % "0.13.1")
 addSbtPlugin("com.github.sbt" % "sbt-ci-release" % "1.9.3")
-addSbtPlugin("com.eed3si9n" % "sbt-assembly" % "2.3.1")
+addSbtPlugin("com.github.sbt" % "sbt-native-packager" % "1.11.1")

src/main/scala/eu/neverblink/jelly/cli/command/Version.scala

@@ -17,10 +17,9 @@ object Version extends JellyCommand[VersionOptions]:
     val jellyV = BuildInfo.libraryDependencies
       .find(_.startsWith("eu.ostrzyciel.jelly:jelly-jena:")).get.split(":")(2)
     printLine(
-      f"""jelly-cli  ${BuildInfo.version}
+      f"""jelly-cli   ${BuildInfo.version}
          |----------------------------------------------
          |Jelly-JVM   $jellyV
          |Apache Jena $jenaV
          |JVM         ${System.getProperty("java.vm.name")} ${System.getProperty("java.vm.version")}
-         |
          |""".stripMargin)