wip

flake.nix

@@ -0,0 +1,164 @@
+{
+  description = "Java FFM bindings for libghostty-vt";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+    ghostty = {
+      url = "github:ghostty-org/ghostty";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+  };
+
+  outputs = { self, nixpkgs, ghostty }:
+    let
+      systems = [
+        "x86_64-linux"
+        "aarch64-linux"
+        "x86_64-darwin"
+        "aarch64-darwin"
+      ];
+
+      forAllSystems = nixpkgs.lib.genAttrs systems;
+    in
+    {
+      packages = forAllSystems (system:
+        let
+          pkgs = import nixpkgs { inherit system; };
+          jdk =
+            if pkgs ? jdk25_headless then pkgs.jdk25_headless
+            else if pkgs ? jdk25 then pkgs.jdk25
+            else if pkgs ? jdk24_headless then pkgs.jdk24_headless
+            else if pkgs ? jdk24 then pkgs.jdk24
+            else pkgs.jdk;
+
+          version = "0.1.0-SNAPSHOT";
+          groupPath = "dev/jlibghostty";
+          artifactId = "jlibghostty";
+          ghosttyVt = ghostty.packages.${system}.libghostty-vt;
+
+          platformName =
+            if system == "x86_64-linux" then "linux-x86_64"
+            else if system == "aarch64-linux" then "linux-aarch64"
+            else if system == "x86_64-darwin" then "macos-x86_64"
+            else if system == "aarch64-darwin" then "macos-aarch64"
+            else throw "unsupported system: ${system}";
+
+          bundledLibraryName =
+            if pkgs.stdenv.hostPlatform.isDarwin then "libghostty-vt.dylib"
+            else "libghostty-vt.so";
+
+          sharedLibraryPattern =
+            if pkgs.stdenv.hostPlatform.isDarwin then "libghostty-vt*.dylib"
+            else "libghostty-vt.so*";
+
+          package = pkgs.stdenvNoCC.mkDerivation {
+            pname = artifactId;
+            inherit version;
+            src = ./.;
+
+            nativeBuildInputs = [ jdk ];
+
+            dontConfigure = true;
+
+            buildPhase = ''
+              runHook preBuild
+
+              mkdir -p build/classes build/test-classes build/resources/${groupPath}/native/${platformName}
+
+              ghostty_lib="$(find ${ghosttyVt} -type f -name '${sharedLibraryPattern}' -print -quit)"
+              if [ -z "$ghostty_lib" ]; then
+                echo "Could not find ${sharedLibraryPattern} in ${ghosttyVt}" >&2
+                find ${ghosttyVt} -maxdepth 4 -type f >&2
+                exit 1
+              fi
+
+              bundled_lib="build/resources/${groupPath}/native/${platformName}/${bundledLibraryName}"
+              cp "$ghostty_lib" "$bundled_lib"
+
+              find src/main/java -name '*.java' | sort > build/sources.txt
+              javac --release 22 -d build/classes @build/sources.txt
+
+              jar --create \
+                --file build/${artifactId}-${version}.jar \
+                -C build/classes . \
+                -C build/resources .
+
+              jar --create \
+                --file build/${artifactId}-${version}-sources.jar \
+                -C src/main/java .
+
+              find src/test/java -name '*.java' | sort > build/test-sources.txt
+              if [ -s build/test-sources.txt ]; then
+                javac --release 22 -cp build/classes -d build/test-classes @build/test-sources.txt
+                java \
+                  --enable-native-access=ALL-UNNAMED \
+                  -Djlibghostty.library.path="$bundled_lib" \
+                  -cp build/classes:build/test-classes \
+                  dev.jlibghostty.GhosttySmokeTest
+              fi
+
+              runHook postBuild
+            '';
+
+            installPhase = ''
+              runHook preInstall
+
+              mkdir -p "$out/share/java" "$out/maven/${groupPath}/${artifactId}/${version}"
+
+              cp build/${artifactId}-${version}.jar "$out/share/java/"
+              cp build/${artifactId}-${version}.jar "$out/maven/${groupPath}/${artifactId}/${version}/"
+              cp build/${artifactId}-${version}-sources.jar "$out/maven/${groupPath}/${artifactId}/${version}/"
+
+              cat > "$out/maven/${groupPath}/${artifactId}/${version}/${artifactId}-${version}.pom" <<'POM'
+              <project xmlns="http://maven.apache.org/POM/4.0.0"
+                       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+                       xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+                <modelVersion>4.0.0</modelVersion>
+                <groupId>dev.jlibghostty</groupId>
+                <artifactId>jlibghostty</artifactId>
+                <version>0.1.0-SNAPSHOT</version>
+                <name>jlibghostty</name>
+                <description>Java FFM bindings for libghostty-vt</description>
+              </project>
+POM
+
+              runHook postInstall
+            '';
+
+            meta = {
+              description = "Java FFM bindings for libghostty-vt";
+              platforms = systems;
+            };
+          };
+        in
+        {
+          default = package;
+          jlibghostty = package;
+          mavenRepository = package;
+        });
+
+      devShells = forAllSystems (system:
+        let
+          pkgs = import nixpkgs { inherit system; };
+          jdk =
+            if pkgs ? jdk25_headless then pkgs.jdk25_headless
+            else if pkgs ? jdk25 then pkgs.jdk25
+            else if pkgs ? jdk24_headless then pkgs.jdk24_headless
+            else if pkgs ? jdk24 then pkgs.jdk24
+            else pkgs.jdk;
+          ghosttyVt = ghostty.packages.${system}.libghostty-vt;
+        in
+        {
+          default = pkgs.mkShell {
+            packages =
+              [ jdk pkgs.gradle ]
+              ++ pkgs.lib.optional (pkgs ? jextract) pkgs.jextract;
+
+            JLIBGHOSTTY_LIBRARY =
+              if pkgs.stdenv.hostPlatform.isDarwin
+              then "${ghosttyVt}/lib/libghostty-vt.dylib"
+              else "${ghosttyVt}/lib/libghostty-vt.so";
+          };
+        });
+    };
+}