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let # https://github.com/flutter/flutter/blob/17c92b7ba68ea609f4eb3405211d019c9dbc4d27/engine/src/flutter/tools/engine_tool/test/commands/stamp_command_test.dart#L125 engine_stamp = writeTextFile { name = "engine_stamp"; text = builtins.toJSON { build_date = "2025-06-27T12:30:00.000Z"; build_time_ms = 1751027400000; git_revision = engineVersion; git_revision_date = "2025-06-27T17:11:53-07:00"; content_hash = "1111111111111111111111111111111111111111"; }; };
dartEntryPoints."flutter_tools.snapshot" = "bin/flutter_tools.dart";inbuildDartApplication.override { inherit dart; } { pname = "flutter-tools"; inherit version dartEntryPoints; dartOutputType = "jit-snapshot";
src = flutterSrc; sourceRoot = "${flutterSrc.name}/packages/flutter_tools";
inherit patches; # The given patches are made for the entire SDK source tree. prePatch = '' chmod --recursive u+w "../.." pushd "../.." ''; postPatch = '' popd '' # Use arm64 instead of arm64e. + lib.optionalString stdenv.hostPlatform.isDarwin '' substituteInPlace lib/src/ios/xcodeproj.dart \ --replace-fail arm64e arm64 '' # need network + lib.optionalString (lib.versionAtLeast version "3.35.0") '' cp ${engine_stamp} ../../bin/cache/engine_stamp.json substituteInPlace lib/src/flutter_cache.dart \ --replace-fail "registerArtifact(FlutterEngineStamp(this, logger));" "" '';
# When the JIT snapshot is being built, the application needs to run. # It attempts to generate configuration files, and relies on a few external # tools. nativeBuildInputs = [ git which ]; preConfigure = '' export HOME=. export FLUTTER_ROOT="$(realpath ../../)" mkdir --parents "$FLUTTER_ROOT/bin/cache" ln --symbolic '${dart}' "$FLUTTER_ROOT/bin/cache/dart-sdk" '';
dartCompileFlags = [ "--define=NIX_FLUTTER_HOST_PLATFORM=${systemPlatform}" ];
# The Dart wrapper launchers are useless for the Flutter tool - it is designed # to be launched from a snapshot by the SDK. postInstall = '' pushd "$out" rm ${builtins.concatStringsSep " " (builtins.attrNames dartEntryPoints)} popd '';
sdkSourceBuilders = { # https://github.com/dart-lang/pub/blob/e1fbda73d1ac597474b82882ee0bf6ecea5df108/lib/src/sdk/dart.dart#L80 "dart" = name: runCommand "dart-sdk-${name}" { passthru.packageRoot = "."; } '' for path in '${dart}/pkg/${name}'; do if [ -d "$path" ]; then ln -s "$path" "$out" break fi done
if [ ! -e "$out" ]; then echo 1>&2 'The Dart SDK does not contain the requested package: ${name}!' exit 1 fi ''; };
inherit pubspecLock;}