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{ hostPlatform
, buildDartApplication
, git
, which
, dart
, version
, flutterSrc
, patches ? [ ]
, pubspecLock
}:
buildDartApplication.override { inherit dart; } rec {
pname = "flutter-tools";
inherit version;
dartOutputType = "jit-snapshot";
src = flutterSrc;
sourceRoot = "source/packages/flutter_tools";
postUnpack = ''chmod -R u+w "$NIX_BUILD_TOP/source"'';
inherit patches;
# The given patches are made for the entire SDK source tree.
prePatch = ''pushd "$NIX_BUILD_TOP/source"'';
postPatch = ''popd'';
# 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="$NIX_BUILD_TOP/source"
mkdir -p "$FLUTTER_ROOT/bin/cache"
ln -s '${dart}' "$FLUTTER_ROOT/bin/cache/dart-sdk"
'';
dartEntryPoints."flutter_tools.snapshot" = "bin/flutter_tools.dart";
dartCompileFlags = [ "--define=NIX_FLUTTER_HOST_PLATFORM=${hostPlatform.system}" ];
# The Dart wrapper launchers are useless for the Flutter tool - it is designed
# to be launched from a snapshot by the SDK.
postInstall = ''
pushd "$out"
rm ${builtins.concatStringsSep " " (builtins.attrNames dartEntryPoints)}
popd
'';
inherit pubspecLock;
}
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