From 9700dd72aabb49b3329c56d1db5b563d56beba86 Mon Sep 17 00:00:00 2001
From: Ingolf Wagner <contact@ingolf-wagner.de>
Date: Fri, 28 Jun 2024 11:30:37 +0200
Subject: [PATCH] add pkl

---
 flake.nix                           |   7 +-
 homes/palo/packages/development.nix |   3 +
 pkgs/pkl/default.nix                | 114 ++++++++++++++++++++++++++++
 3 files changed, 123 insertions(+), 1 deletion(-)
 create mode 100644 pkgs/pkl/default.nix

diff --git a/flake.nix b/flake.nix
index 7be992b..2b95cee 100644
--- a/flake.nix
+++ b/flake.nix
@@ -166,6 +166,7 @@
               kmonad = kmonad.packages.${system}.kmonad;
               tasksh = taskshell.packages.${system}.tasksh;
               overviewer = overviewer.packages.${system}.overviewer;
+              pkl = self.packages.${system}.pkl;
             })
             (import ./pkgs)
           ];
@@ -324,13 +325,17 @@
     flake-parts.lib.mkFlake { inherit inputs; } ({ self, pkgs, ... }: {
       # We define our own systems below. you can still use this to add system specific outputs to your flake.
       # See: https://flake.parts/getting-started
-      systems = [ ];
+      systems = [ "x86_64-linux" ];
 
       # import clan-core modules
       imports = [
         clan-core.flakeModules.default
       ];
 
+      perSystem = {
+        packages.pkl = pkgs.callPackage ./pkgs/pkl { };
+      };
+
       # Define your clan
       clan = {
         # Clan wide settings.
diff --git a/homes/palo/packages/development.nix b/homes/palo/packages/development.nix
index e3978ff..f9c50f8 100644
--- a/homes/palo/packages/development.nix
+++ b/homes/palo/packages/development.nix
@@ -37,6 +37,9 @@ with lib;
           };
         }))
 
+        # Pkl
+        # ---
+        # pkl (not working yet)
 
         # terminal code to image/movie renderer
         vhs
diff --git a/pkgs/pkl/default.nix b/pkgs/pkl/default.nix
new file mode 100644
index 0000000..a189e6a
--- /dev/null
+++ b/pkgs/pkl/default.nix
@@ -0,0 +1,114 @@
+{ stdenv
+, jdk17
+, gradle_7
+, lib
+, fetchFromGitHub
+, jre
+, perl
+, git
+, util-linux
+}:
+
+let
+  pname = "pkl";
+  version = "0.25.1";
+  src = fetchFromGitHub {
+    owner = "apple";
+    repo = "pkl";
+    rev = "0.25.1";
+    sha256 = "sha256-/I1dxGXYVUClEQXXtSqEyopClNTqseeWpAiyeaPrIGo=";
+  };
+
+  # fake build to pre-download deps into fixed-output derivation
+  deps = stdenv.mkDerivation {
+    pname = "${pname}-deps";
+    inherit src version;
+
+    nativeBuildInputs = [
+      git
+      gradle_7
+      jdk17
+      perl
+    ];
+
+    # Here we download dependencies for both the server and the client so
+    # we only have to specify one hash for 'deps'. Deps can be garbage
+    # collected after the build, so this is not really an issue.
+    buildPhase = ''
+      export GRADLE_USER_HOME=$(mktemp -d)
+      # https://github.com/apple/pkl/issues/66
+      gradle --no-daemon \
+        bench:dependencies \
+        docs:dependencies \
+        pkl-cli:dependencies \
+        pkl-codegen-java:dependencies \
+        pkl-codegen-kotlin:dependencies \
+        pkl-commons:dependencies \
+        pkl-commons-cli:dependencies \
+        pkl-commons-test:dependencies \
+        pkl-config-java:dependencies \
+        pkl-config-kotlin:dependencies \
+        pkl-core:dependencies \
+        pkl-doc:dependencies \
+        pkl-executor:dependencies \
+        pkl-gradle:dependencies \
+        pkl-server:dependencies \
+        pkl-tools:dependencies \
+        stdlib:dependencies \
+        bench:spotlessJava
+    '';
+
+    # Taken from Mindustry derivation
+    # perl code mavenizes pathes (com.squareup.okio/okio/1.13.0/a9283170b7305c8d92d25aff02a6ab7e45d06cbe/okio-1.13.0.jar -> com/squareup/okio/okio/1.13.0/okio-1.13.0.jar)
+    installPhase = ''
+      find $GRADLE_USER_HOME/caches/modules-2 -type f -regex '.*\.\(jar\|pom\)' \
+        | perl -pe 's#(.*/([^/]+)/([^/]+)/([^/]+)/[0-9a-f]{30,40}/([^/\s]+))$# ($x = $2) =~ tr|\.|/|; "install -Dm444 $1 \$out/$x/$3/$4/$5" #e' \
+        | sh
+
+      # For some reason, some of the jars, but not all, had the unexpected
+      # string "-gradle70" before its extension. This snippet removes it
+      find "$out" -type f -iname "*-gradle70.jar" -exec ${util-linux}/bin/rename -- "-gradle70" "" {} \;
+    '';
+    outputHashMode = "recursive";
+    outputHash = "sha256-iLC2WI9UJWOQ14U6Rd+B+8OPD/ji+aTsjUT+YMbJuv0=";
+  };
+in
+stdenv.mkDerivation rec {
+  inherit pname version src deps;
+
+  nativeBuildInputs = [
+    git
+    gradle_7
+    jdk17
+  ];
+
+  buildInputs = [
+    jre
+  ];
+
+  buildPhase = ''
+    export GRADLE_USER_HOME=$(mktemp -d)
+    sed -ie "s#repositories {#repositories { maven { url = uri(\"${deps}\") }#g" settings.gradle.kts
+    sed -ie "s#repositories {#repositories { maven { url = uri(\"${deps}\") }#g" ./buildSrc/src/main/kotlin/pklAllProjects.gradle.kts
+    sed -ie "s#repositories {#repositories { maven { url = uri(\"${deps}\") }#g" ./pkl-gradle/src/test/kotlin/org/pkl/gradle/JavaCodeGeneratorsTest.kt
+    sed -ie "s#repositories {#repositories { maven { url = uri(\"${deps}\") }#g" ./pkl-gradle/src/test/kotlin/org/pkl/gradle/KotlinCodeGeneratorsTest.kt
+    sed -ie "s#repositories {#repositories { maven { url = uri(\"${deps}\") }#g" ./buildSrc/settings.gradle.kts
+
+    gradle --no-daemon --offline --info --stacktrace build
+  '';
+
+  installPhase = ''
+    mkdir -p "$out/bin"
+    install -Dm755 "./pkl-cli/build/executable/jpkl" "$out/bin/pkl"
+  '';
+
+  meta = with lib; {
+    description = "A configuration as code language with rich validation and tooling. ";
+    homepage = "https://pkl-lang.org/main/current/index.html";
+    licence = licenses.asl20;
+    platforms = platforms.all;
+    maintainers = with maintainers; [ rafaelrc ];
+    mainProgram = "pkl";
+  };
+}
+