124 lines
4.2 KiB
Nix
124 lines
4.2 KiB
Nix
{ version
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, engineVersion
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, patches
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, dart
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, src
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, lib
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, stdenv
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, darwin
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, git
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, which
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}:
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let
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unwrapped =
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stdenv.mkDerivation {
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name = "flutter-${version}-unwrapped";
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inherit src patches version;
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outputs = [ "out" "cache" ];
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buildInputs = [ git ];
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nativeBuildInputs = [ ]
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++ lib.optionals stdenv.hostPlatform.isDarwin [ darwin.DarwinTools ];
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preConfigure = ''
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if [ "$(< bin/internal/engine.version)" != '${engineVersion}' ]; then
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echo 1>&2 "The given engine version (${engineVersion}) does not match the version required by the Flutter SDK ($(< bin/internal/engine.version))."
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exit 1
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fi
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'';
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postPatch = ''
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patchShebangs --build ./bin/
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'';
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buildPhase = ''
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export FLUTTER_ROOT="$(pwd)"
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export FLUTTER_TOOLS_DIR="$FLUTTER_ROOT/packages/flutter_tools"
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export SCRIPT_PATH="$FLUTTER_TOOLS_DIR/bin/flutter_tools.dart"
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export SNAPSHOT_PATH="$FLUTTER_ROOT/bin/cache/flutter_tools.snapshot"
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export STAMP_PATH="$FLUTTER_ROOT/bin/cache/flutter_tools.stamp"
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export DART_SDK_PATH="${dart}"
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# The Flutter tool compilation requires dependencies to be cached, as there is no Internet access.
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# Dart expects package caches to be mutable, and does not support composing cache directories.
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# The packages cached during the build therefore cannot be easily used. They are provided through
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# the derivation's "cache" output, though, in case they are needed.
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#
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# Note that non-cached packages will normally be fetched from the Internet when they are needed, so Flutter
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# will function without an existing package cache as long as it has an Internet connection.
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export PUB_CACHE="$cache"
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if [ -d .pub-preload-cache ]; then
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${dart}/bin/dart pub cache preload .pub-preload-cache/*
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elif [ -d .pub-cache ]; then
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mv .pub-cache "$PUB_CACHE"
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else
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echo 'ERROR: Failed to locate the Dart package cache required to build the Flutter tool.'
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exit 1
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fi
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pushd "$FLUTTER_TOOLS_DIR"
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${dart}/bin/dart pub get --offline
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popd
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local revision="$(cd "$FLUTTER_ROOT"; git rev-parse HEAD)"
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${dart}/bin/dart --snapshot="$SNAPSHOT_PATH" --packages="$FLUTTER_TOOLS_DIR/.dart_tool/package_config.json" "$SCRIPT_PATH"
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echo "$revision" > "$STAMP_PATH"
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echo -n "${version}" > version
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# Certain prebuilts should be replaced with Nix-built (or at least Nix-patched) equivalents.
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rm -r \
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$FLUTTER_ROOT/bin/cache/dart-sdk \
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$FLUTTER_ROOT/bin/cache/artifacts/engine
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'';
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installPhase = ''
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runHook preInstall
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mkdir -p $out
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cp -r . $out
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ln -sf ${dart} $out/bin/cache/dart-sdk
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runHook postInstall
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'';
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doInstallCheck = true;
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nativeInstallCheckInputs = [ which ]
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++ lib.optionals stdenv.hostPlatform.isDarwin [ darwin.DarwinTools ];
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installCheckPhase = ''
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runHook preInstallCheck
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export HOME="$(mktemp -d)"
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$out/bin/flutter config --android-studio-dir $HOME
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$out/bin/flutter config --android-sdk $HOME
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$out/bin/flutter --version | fgrep -q '${version}'
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runHook postInstallCheck
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'';
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passthru = {
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inherit dart engineVersion;
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# The derivation containing the original Flutter SDK files.
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# When other derivations wrap this one, any unmodified files
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# found here should be included as-is, for tooling compatibility.
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sdk = unwrapped;
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};
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meta = with lib; {
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description = "Flutter is Google's SDK for building mobile, web and desktop with Dart";
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longDescription = ''
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Flutter is Google’s UI toolkit for building beautiful,
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natively compiled applications for mobile, web, and desktop from a single codebase.
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'';
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homepage = "https://flutter.dev";
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license = licenses.bsd3;
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platforms = [ "x86_64-linux" "aarch64-linux" "x86_64-darwin" "aarch64-darwin" ];
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maintainers = with maintainers; [ babariviere ericdallo FlafyDev hacker1024 ];
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};
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};
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in
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unwrapped
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