pyrox.dev
flutter: Reorganize the wrapper code
+50
-33
pkgs/development/compilers/flutter/wrapper.nix
+50
-33
pkgs/development/compilers/flutter/wrapper.nix
···
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}:
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let
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-
linuxDesktopRuntimeDeps = [
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atk
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cairo
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gdk-pixbuf
···
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(callPackage ./packages/libdeflate { })
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];
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-
linuxDesktopBuildDeps = let
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-
# https://discourse.nixos.org/t/handling-transitive-c-dependencies/5942/3
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deps = pkg: builtins.filter lib.isDerivation ((pkg.buildInputs or [ ]) ++ (pkg.propagatedBuildInputs or [ ]));
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collect = pkg: lib.unique ([ pkg ] ++ deps pkg ++ builtins.concatMap collect (deps pkg));
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in builtins.concatMap collect linuxDesktopRuntimeDeps;
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in
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runCommandLocal "flutter"
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{
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-
flutterWithCorrectedCache = writeShellScript "flutter_corrected_cache" ''
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export PUB_CACHE=''${PUB_CACHE:-"$HOME/.pub-cache"}
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${flutter}/bin/flutter "$@"
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-
'';
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-
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buildInputs = [ makeWrapper ];
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passthru = flutter.passthru // {
···
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mkdir -p $out/bin/cache/
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ln -sf ${flutter.dart} $out/bin/cache/dart-sdk
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65
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makeWrapper "$flutterWithCorrectedCache" $out/bin/flutter \
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--set-default ANDROID_EMULATOR_USE_SYSTEM_LIBS 1 \
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--prefix PATH : '${lib.makeBinPath (lib.optionals supportsLinuxDesktop [
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-
pkg-config
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-
cmake
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ninja
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clang
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-
])}' \
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-
--prefix PKG_CONFIG_PATH : '${
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let
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makePkgConfigSearchPath = pkgs: builtins.concatStringsSep ":" (builtins.filter builtins.pathExists (builtins.concatMap (pkg: map (dir: "${lib.getOutput "dev" pkg}/${dir}/pkgconfig") [ "lib" "share" ]) pkgs));
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in makePkgConfigSearchPath linuxDesktopBuildDeps}' \
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-
--prefix CXXFLAGS "''\t" '${lib.optionalString supportsLinuxDesktop "-isystem ${libX11.dev}/include -isystem ${xorgproto}/include"}' \
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${let linkerFlags = map (pkg: "-rpath,${lib.getOutput "lib" pkg}/lib") (lib.optionals supportsLinuxDesktop linuxDesktopRuntimeDeps); in ''
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--prefix LDFLAGS "''\t" '${builtins.concatStringsSep " " (map (flag: "-Wl,${flag}") linkerFlags)}' \
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''} \
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-
--suffix LD_LIBRARY_PATH : '${lib.optionalString supportsLinuxDesktop (lib.makeLibraryPath [
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-
# The prebuilt flutter_linux_gtk library shipped in the Flutter SDK does not have an appropriate RUNPATH.
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-
# Its dependencies must be added here.
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-
libepoxy
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-
])}' \
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--add-flags --no-version-check
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''
···
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}:
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let
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+
# By default, Flutter stores downloaded files (such as the Pub cache) in the SDK directory.
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+
# Wrap it to ensure that it does not do that, preferring home directories instead.
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+
immutableFlutter = writeShellScript "flutter_immutable" ''
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+
export PUB_CACHE=''${PUB_CACHE:-"$HOME/.pub-cache"}
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${flutter}/bin/flutter --no-version-check "$@"
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+
'';
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+
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+
# Libraries that Flutter apps depend on at runtime.
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+
appRuntimeDeps = lib.optionals supportsLinuxDesktop [
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atk
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cairo
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gdk-pixbuf
···
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(callPackage ./packages/libdeflate { })
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];
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+
# Development packages required for compilation.
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+
appBuildDeps =
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+
let
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+
# https://discourse.nixos.org/t/handling-transitive-c-dependencies/5942/3
51
+
deps = pkg: builtins.filter lib.isDerivation ((pkg.buildInputs or [ ]) ++ (pkg.propagatedBuildInputs or [ ]));
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+
collect = pkg: lib.unique ([ pkg ] ++ deps pkg ++ builtins.concatMap collect (deps pkg));
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+
in
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builtins.concatMap collect appRuntimeDeps;
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+
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+
# Some header files are not properly located by the Flutter SDK.
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# They must be manually included.
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+
appStaticBuildDeps = lib.optionals supportsLinuxDesktop [ libX11 xorgproto ];
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+
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+
# Some runtime components are prebuilt, and do not know where to find their dependencies.
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+
# Ideally, these prebuilt components would be patched by the SDK derivation, but this
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# is tricky as they are tyically downloaded from Google on-demand.
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+
# Building the Engine manually should solve this issue: https://github.com/NixOS/nixpkgs/issues/201574
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+
appPrebuiltDeps = lib.optionals supportsLinuxDesktop [
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+
# flutter_linux_gtk.so
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+
libepoxy
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+
];
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+
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+
# Tools used by the Flutter SDK to compile applications.
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+
buildTools = lib.optionals supportsLinuxDesktop [
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+
pkg-config
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+
cmake
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+
ninja
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+
clang
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+
];
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+
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# Nix-specific compiler configuration.
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+
pkgConfigDirectories = builtins.filter builtins.pathExists (builtins.concatMap (pkg: map (dir: "${lib.getOutput "dev" pkg}/${dir}/pkgconfig") [ "lib" "share" ]) appBuildDeps);
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+
cppFlags = map (pkg: "-isystem ${lib.getOutput "dev" pkg}/include") appStaticBuildDeps;
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+
linkerFlags = map (pkg: "-rpath,${lib.getOutput "lib" pkg}/lib") appRuntimeDeps;
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in
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runCommandLocal "flutter"
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{
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buildInputs = [ makeWrapper ];
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passthru = flutter.passthru // {
···
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mkdir -p $out/bin/cache/
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ln -sf ${flutter.dart} $out/bin/cache/dart-sdk
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+
makeWrapper '${immutableFlutter}' $out/bin/flutter \
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--set-default ANDROID_EMULATOR_USE_SYSTEM_LIBS 1 \
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+
--prefix PATH : '${lib.makeBinPath buildTools}' \
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+
--prefix PKG_CONFIG_PATH : '${builtins.concatStringsSep ":" pkgConfigDirectories}' \
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+
--prefix CXXFLAGS "''\t" '${builtins.concatStringsSep " " cppFlags}' \
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+
--prefix LDFLAGS "''\t" '${builtins.concatStringsSep " " (map (flag: "-Wl,${flag}") linkerFlags)}' \
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--suffix LD_LIBRARY_PATH : '${lib.makeLibraryPath appPrebuiltDeps}'
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''