337 lines
7.8 KiB
Nix
337 lines
7.8 KiB
Nix
{
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lib,
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callPackage,
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writeText,
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symlinkJoin,
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targetPlatform,
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buildPlatform,
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darwin,
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clang,
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llvm,
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tools ? callPackage ./tools.nix { inherit buildPlatform; },
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stdenv,
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stdenvNoCC,
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dart,
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fetchgit,
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runCommand,
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llvmPackages,
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llvmPackages_15,
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patchelf,
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openbox,
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xorg,
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libglvnd,
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libepoxy,
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wayland,
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freetype,
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pango,
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glib,
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harfbuzz,
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cairo,
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gdk-pixbuf,
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at-spi2-atk,
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zlib,
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gtk3,
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pkg-config,
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ninja,
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python312,
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python39,
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git,
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version,
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flutterVersion,
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dartSdkVersion,
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swiftshaderHash,
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swiftshaderRev,
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hashes,
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patches,
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url,
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runtimeMode ? "release",
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isOptimized ? runtimeMode != "debug",
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}:
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let
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expandSingleDep =
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dep: lib.optionals (lib.isDerivation dep) ([ dep ] ++ map (output: dep.${output}) dep.outputs);
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expandDeps = deps: lib.flatten (map expandSingleDep deps);
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constants = callPackage ./constants.nix { platform = targetPlatform; };
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python3 = if lib.versionAtLeast flutterVersion "3.20" then python312 else python39;
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src = callPackage ./source.nix {
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inherit
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tools
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flutterVersion
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version
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hashes
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url
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targetPlatform
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buildPlatform
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;
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};
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swiftshader = fetchgit {
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url = "https://swiftshader.googlesource.com/SwiftShader.git";
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hash = swiftshaderHash;
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rev = swiftshaderRev;
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postFetch = ''
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rm -rf $out/third_party/llvm-project
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'';
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};
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llvm = symlinkJoin {
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name = "llvm";
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paths = with llvmPackages; [
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clang
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llvmPackages.llvm
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];
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};
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outName = "host_${runtimeMode}${lib.optionalString (!isOptimized) "_unopt"}";
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dartPath = "${
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if (lib.versionAtLeast flutterVersion "3.23") then "flutter/third_party" else "third_party"
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}/dart";
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in
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stdenv.mkDerivation (finalAttrs: {
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pname = "flutter-engine-${runtimeMode}${lib.optionalString (!isOptimized) "-unopt"}";
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inherit
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version
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runtimeMode
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patches
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isOptimized
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dartSdkVersion
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src
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outName
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swiftshader
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;
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setOutputFlags = false;
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doStrip = isOptimized;
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toolchain = symlinkJoin {
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name = "flutter-engine-toolchain-${version}";
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paths =
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expandDeps (
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lib.optionals (stdenv.hostPlatform.isLinux) [
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gtk3
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wayland
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libepoxy
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libglvnd
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freetype
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at-spi2-atk
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glib
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gdk-pixbuf
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harfbuzz
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pango
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cairo
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xorg.libxcb
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xorg.libX11
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xorg.libXcursor
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xorg.libXrandr
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xorg.libXrender
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xorg.libXinerama
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xorg.libXi
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xorg.libXext
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xorg.libXfixes
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xorg.libXxf86vm
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xorg.xorgproto
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zlib
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]
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++ lib.optionals (stdenv.hostPlatform.isDarwin) [
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clang
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llvm
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]
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)
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++ [
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stdenv.cc.libc_dev
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stdenv.cc.libc_lib
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];
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# Needed due to Flutter expecting everything to be relative to $out
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# and not true absolute path (ie relative to "/").
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postBuild = ''
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mkdir -p $(dirname $(dirname "$out/$out"))
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ln -s $(dirname "$out") $out/$(dirname "$out")
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'';
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};
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NIX_CFLAGS_COMPILE = [
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"-I${finalAttrs.toolchain}/include"
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] ++ lib.optional (!isOptimized) "-U_FORTIFY_SOURCE";
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nativeCheckInputs = lib.optionals stdenv.hostPlatform.isLinux [
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xorg.xorgserver
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openbox
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];
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nativeBuildInputs =
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[
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python3
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(tools.vpython python3)
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git
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pkg-config
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ninja
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dart
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]
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++ lib.optionals (stdenv.hostPlatform.isLinux) [ patchelf ]
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++ lib.optionals (stdenv.hostPlatform.isDarwin) [
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darwin.system_cmds
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darwin.xcode
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tools.xcode-select
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]
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++ lib.optionals (stdenv.cc.libc ? bin) [ stdenv.cc.libc.bin ];
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buildInputs = [ gtk3 ];
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patchtools = [ "flutter/third_party/gn/gn" ];
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dontPatch = true;
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patchgit = [
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dartPath
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"flutter"
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"."
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] ++ lib.optional (lib.versionAtLeast flutterVersion "3.21") "flutter/third_party/skia";
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postUnpack = ''
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pushd ${src.name}
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cp ${./pkg-config.py} src/build/config/linux/pkg-config.py
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cp -pr --reflink=auto $swiftshader src/flutter/third_party/swiftshader
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chmod -R u+w -- src/flutter/third_party/swiftshader
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ln -s ${llvmPackages_15.llvm.monorepoSrc} src/flutter/third_party/swiftshader/third_party/llvm-project
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mkdir -p src/flutter/buildtools/${constants.alt-platform}
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ln -s ${llvm} src/flutter/buildtools/${constants.alt-platform}/clang
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mkdir -p src/buildtools/${constants.alt-platform}
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ln -s ${llvm} src/buildtools/${constants.alt-platform}/clang
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mkdir -p src/${dartPath}/tools/sdks
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ln -s ${dart} src/${dartPath}/tools/sdks/dart-sdk
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${lib.optionalString (stdenv.hostPlatform.isLinux) ''
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for patchtool in ''${patchtools[@]}; do
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patchelf src/$patchtool --set-interpreter $(cat $NIX_CC/nix-support/dynamic-linker)
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done
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''}
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for dir in ''${patchgit[@]}; do
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pushd src/$dir
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rm -rf .git
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git init
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git add .
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git config user.name "nobody"
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git config user.email "nobody@local.host"
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git commit -a -m "$dir" --quiet
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popd
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done
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dart src/${dartPath}/tools/generate_package_config.dart
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echo "${dartSdkVersion}" >src/${dartPath}/sdk/version
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rm -rf src/third_party/angle/.git
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python3 src/flutter/tools/pub_get_offline.py
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pushd src/flutter
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for p in ''${patches[@]}; do
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patch -p1 -i $p
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done
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popd
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popd
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'';
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configureFlags =
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[
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"--no-prebuilt-dart-sdk"
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"--embedder-for-target"
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"--no-goma"
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]
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++ lib.optionals (targetPlatform.isx86_64 == false) [
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"--linux"
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"--linux-cpu ${constants.alt-arch}"
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]
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++ lib.optional (!isOptimized) "--unoptimized"
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++ lib.optional (runtimeMode == "debug") "--no-stripped"
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++ lib.optional finalAttrs.doCheck "--enable-unittests"
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++ lib.optional (!finalAttrs.doCheck) "--no-enable-unittests";
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# NOTE: Once https://github.com/flutter/flutter/issues/127606 is fixed, use "--no-prebuilt-dart-sdk"
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configurePhase =
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''
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runHook preConfigure
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export PYTHONPATH=$src/src/build
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''
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+ lib.optionalString stdenv.hostPlatform.isDarwin ''
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export PATH=${darwin.xcode}/Contents/Developer/usr/bin/:$PATH
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''
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+ ''
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python3 ./src/flutter/tools/gn $configureFlags \
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--runtime-mode $runtimeMode \
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--out-dir $out \
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--target-sysroot $toolchain \
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--target-dir $outName \
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--target-triple ${targetPlatform.config} \
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--enable-fontconfig
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runHook postConfigure
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'';
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buildPhase = ''
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runHook preBuild
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export TERM=dumb
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ninja -C $out/out/$outName -j$NIX_BUILD_CORES
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runHook postBuild
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'';
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# Tests are broken
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doCheck = false;
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checkPhase = ''
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ln -s $out/out src/out
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touch src/out/run_tests.log
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sh src/flutter/testing/run_tests.sh $outName
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rm src/out/run_tests.log
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'';
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installPhase = ''
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runHook preInstall
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rm -rf $out/out/$outName/{obj,gen,exe.unstripped,lib.unstripped,zip_archives}
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rm $out/out/$outName/{args.gn,build.ninja,build.ninja.d,compile_commands.json,toolchain.ninja}
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find $out/out/$outName -name '*_unittests' -delete
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find $out/out/$outName -name '*_benchmarks' -delete
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'' + lib.optionalString (finalAttrs.doCheck) ''
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rm $out/out/$outName/{display_list_rendertests,flutter_tester}
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'' + ''
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runHook postInstall
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'';
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passthru = {
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dart = callPackage ./dart.nix { engine = finalAttrs.finalPackage; };
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};
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meta = with lib; {
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# Very broken on Darwin
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broken = stdenv.hostPlatform.isDarwin;
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description = "The Flutter engine";
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homepage = "https://flutter.dev";
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maintainers = with maintainers; [ RossComputerGuy ];
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license = licenses.bsd3;
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platforms = [
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"x86_64-linux"
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"aarch64-linux"
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"x86_64-darwin"
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"aarch64-darwin"
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];
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} // lib.optionalAttrs (lib.versionOlder flutterVersion "3.22") { hydraPlatforms = [ ]; };
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})
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