push sheeet

pkgs/development/compilers/flutter/artifacts/fetch-artifacts.nix

@@ -0,0 +1,106 @@
+# Schema:
+# ${flutterVersion}.${targetPlatform}.${hostPlatform}
+#
+# aarch64-darwin as a host is not yet supported.
+# https://github.com/flutter/flutter/issues/60118
+{
+  lib,
+  runCommand,
+  xorg,
+  cacert,
+  unzip,
+
+  flutterPlatform,
+  systemPlatform,
+  flutter,
+  hash,
+}:
+
+let
+  flutterPlatforms = [
+    "android"
+    "ios"
+    "web"
+    "linux"
+    "windows"
+    "macos"
+    "fuchsia"
+    "universal"
+  ];
+
+  flutter' = flutter.override {
+    # Use a version of Flutter with just enough capabilities to download
+    # artifacts.
+    supportedTargetFlutterPlatforms = [ ];
+
+    # Modify flutter-tool's system platform in order to get the desired platform's hashes.
+    flutter = flutter.unwrapped.override {
+      flutterTools = flutter.unwrapped.tools.override {
+        inherit systemPlatform;
+      };
+    };
+  };
+in
+runCommand "flutter-artifacts-${flutterPlatform}-${systemPlatform}"
+  {
+    nativeBuildInputs = [
+      xorg.lndir
+      flutter'
+      unzip
+    ];
+
+    NIX_FLUTTER_TOOLS_VM_OPTIONS = "--root-certs-file=${cacert}/etc/ssl/certs/ca-bundle.crt";
+    NIX_FLUTTER_OPERATING_SYSTEM =
+      {
+        "x86_64-linux" = "linux";
+        "aarch64-linux" = "linux";
+        "x86_64-darwin" = "macos";
+        "aarch64-darwin" = "macos";
+      }
+      .${systemPlatform};
+
+    outputHash = hash;
+    outputHashMode = "recursive";
+    outputHashAlgo = "sha256";
+
+    passthru = {
+      inherit flutterPlatform;
+    };
+  }
+  (
+    ''
+      export FLUTTER_ROOT="$NIX_BUILD_TOP"
+      lndir -silent '${flutter'}' "$FLUTTER_ROOT"
+      rm -rf "$FLUTTER_ROOT/bin/cache"
+      mkdir "$FLUTTER_ROOT/bin/cache"
+    ''
+    + lib.optionalString (lib.versionAtLeast flutter'.version "3.26") ''
+      mkdir "$FLUTTER_ROOT/bin/cache/dart-sdk"
+      lndir -silent '${flutter'}/bin/cache/dart-sdk' "$FLUTTER_ROOT/bin/cache/dart-sdk"
+    ''
+    # Could not determine engine revision
+    + lib.optionalString (lib.versionAtLeast flutter'.version "3.32") ''
+      cp '${flutter'}/bin/internal/engine.version' "$FLUTTER_ROOT/bin/cache/engine.stamp"
+    ''
+    + ''
+
+      HOME="$(mktemp -d)" flutter precache ${
+        lib.optionalString (
+          flutter ? engine && flutter.engine.meta.available
+        ) "--local-engine ${flutter.engine.outName}"
+      } \
+        -v '--${flutterPlatform}' ${
+          builtins.concatStringsSep " " (map (p: "'--no-${p}'") (lib.remove flutterPlatform flutterPlatforms))
+        }
+
+      rm -rf "$FLUTTER_ROOT/bin/cache/lockfile"
+    ''
+    + lib.optionalString (lib.versionAtLeast flutter'.version "3.26") ''
+      rm -rf "$FLUTTER_ROOT/bin/cache/dart-sdk"
+    ''
+    + ''
+      find "$FLUTTER_ROOT" -type l -lname '${flutter'}/*' -delete
+
+      cp -r bin/cache "$out"
+    ''
+  )

pkgs/development/compilers/flutter/artifacts/overrides/darwin.nix

@@ -0,0 +1,14 @@
+{ }:
+{
+  buildInputs ? [ ],
+  ...
+}:
+{
+  postPatch = ''
+    if [ "$pname" == "flutter-tools" ]; then
+      # Use arm64 instead of arm64e.
+      substituteInPlace lib/src/ios/xcodeproj.dart \
+        --replace-fail arm64e arm64
+    fi
+  '';
+}

pkgs/development/compilers/flutter/artifacts/overrides/linux.nix

@@ -0,0 +1,12 @@
+{
+  gtk3,
+}:
+
+{
+  buildInputs ? [ ],
+  ...
+}:
+
+{
+  buildInputs = buildInputs ++ [ gtk3 ];
+}

pkgs/development/compilers/flutter/artifacts/prepare-artifacts.nix

@@ -0,0 +1,30 @@
+{
+  lib,
+  stdenv,
+  callPackage,
+  autoPatchelfHook,
+  src,
+}:
+
+(stdenv.mkDerivation {
+  inherit (src) name;
+  inherit src;
+
+  nativeBuildInputs = lib.optional stdenv.hostPlatform.isLinux autoPatchelfHook;
+
+  installPhase = ''
+    runHook preInstall
+
+    mkdir -p "$out/bin"
+    cp -r . "$out/bin/cache"
+    rm -f "$out/bin/cache/flutter.version.json"
+
+    runHook postInstall
+  '';
+}).overrideAttrs
+  (
+    if builtins.pathExists (./overrides + "/${src.flutterPlatform}.nix") then
+      callPackage (./overrides + "/${src.flutterPlatform}.nix") { }
+    else
+      ({ ... }: { })
+  )