livekit-libwebrtc: init at m114

Co-authored-by: Niklas Korz <niklas@niklaskorz.de>
2024-11-18 11:36:39 +01:00 · 2024-11-18 11:36:39 +01:00 · 50631d89b9
commit 50631d89b9
parent 9208d2c78c
5 changed files with 666 additions and 0 deletions
--- a/pkgs/by-name/li/livekit-libwebrtc/0001-shared-libraries.patch
+++ b/pkgs/by-name/li/livekit-libwebrtc/0001-shared-libraries.patch
@ -0,0 +1,15 @@
+diff --git a/BUILD.gn b/BUILD.gn
+index d5289b8..598bbbc 100644
+--- a/BUILD.gn
+++ b/BUILD.gn
+@@ -138,8 +138,8 @@ config("library_impl_config") {
+ # target_defaults and direct_dependent_settings.
+ config("common_inherited_config") {
+   defines = []
+-  cflags = []
+-  ldflags = []
+  cflags = [ "-fvisibility=default" ]
+  ldflags = [ "-lavutil", "-lavformat", "-lavcodec" ]
+ 
+   if (rtc_dlog_always_on) {
+     defines += [ "DLOG_ALWAYS_ON" ]
--- a/pkgs/by-name/li/livekit-libwebrtc/gclient2nix.nix
+++ b/pkgs/by-name/li/livekit-libwebrtc/gclient2nix.nix
@ -0,0 +1,61 @@
+{
+  lib,
+  buildPythonPackage,
+  fetchFromGitHub,
+  flit-core,
+  click,
+  nurl,
+  nix-prefetch-git,
+  nix,
+  coreutils,
+  nixfmt-rfc-style,
+  makeWrapper,
+}:
+# Based on https://github.com/milahu/gclient2nix
+# but with libwebrtc-specific changes.
+let
+  nativeDeps = [
+    nurl
+    nix-prefetch-git
+    nix
+    coreutils
+    nixfmt-rfc-style
+  ];
+in
+buildPythonPackage {
+  pname = "gclient2nix";
+  version = "0.2.0-unstable-2024-12-19";
+  pyproject = true;
+
+  src = fetchFromGitHub {
+    owner = "WeetHet";
+    repo = "gclient2nix";
+    rev = "bdf5ab79818595be9dcfc655bd6784cf4bcdb863";
+    hash = "sha256-KOXG8E2g30XyZGmM4ZnYPBSybBhHIjOZL8ZXRKYrkZQ=";
+  };
+
+  build-system = [
+    flit-core
+  ];
+
+  dependencies = [
+    click
+  ];
+
+  nativeBuildInputs = [ makeWrapper ];
+
+  postFixup = ''
+    wrapProgram $out/bin/gclient2nix \
+      --set PATH ${lib.makeBinPath nativeDeps}
+  '';
+
+  meta = {
+    description = "Generate Nix expressions for projects based on the Google build tools";
+    homepage = "https://github.com/WeetHet/gclient2nix";
+    license = lib.licenses.mit;
+    maintainers = with lib.maintainers; [
+      WeetHet
+    ];
+    mainProgram = "gclient2nix";
+  };
+}
--- a/pkgs/by-name/li/livekit-libwebrtc/mkSystemLibraries.nix
+++ b/pkgs/by-name/li/livekit-libwebrtc/mkSystemLibraries.nix
@ -0,0 +1,64 @@
+{
+  brotli,
+  fontconfig,
+  freetype,
+  harfbuzz,
+  icu,
+  jsoncpp,
+  libpng,
+  libwebp,
+  libxml2,
+  libxslt,
+  minizip,
+  ffmpeg_6,
+}:
+{
+  "brotli" = {
+    package = brotli;
+    path = "third_party/brotli/BUILD.gn";
+  };
+  "fontconfig" = {
+    package = fontconfig;
+    path = "third_party/fontconfig/BUILD.gn";
+  };
+  "freetype" = {
+    package = freetype;
+    path = "build/config/freetype/freetype.gni";
+  };
+  "harfbuzz-ng" = {
+    package = harfbuzz;
+    path = "third_party/harfbuzz-ng/harfbuzz.gni";
+  };
+  "jsoncpp" = {
+    package = jsoncpp;
+    path = "third_party/jsoncpp/BUILD.gn";
+  };
+  "icu" = {
+    package = icu;
+    path = "third_party/icu/BUILD.gn";
+  };
+  "libpng" = {
+    package = libpng;
+    path = "third_party/libpng/BUILD.gn";
+  };
+  "libwebp" = {
+    package = libwebp;
+    path = "third_party/libwebp/BUILD.gn";
+  };
+  "libxml" = {
+    package = libxml2;
+    path = "third_party/libxml/BUILD.gn";
+  };
+  "libxslt" = {
+    package = libxslt;
+    path = "third_party/libxslt/BUILD.gn";
+  };
+  "zlib" = {
+    package = minizip;
+    path = "third_party/zlib/BUILD.gn";
+  };
+  "ffmpeg" = {
+    package = ffmpeg_6;
+    path = "third_party/ffmpeg/BUILD.gn";
+  };
+}
--- a/pkgs/by-name/li/livekit-libwebrtc/package.nix
+++ b/pkgs/by-name/li/livekit-libwebrtc/package.nix
@ -0,0 +1,298 @@
+{
+  stdenv,
+  clang,
+  callPackage,
+  lib,
+  gn,
+  fetchurl,
+  fetchpatch,
+  xcbuild,
+  python3,
+  ninja,
+  apple-sdk_14,
+  darwinMinVersionHook,
+  git,
+  cpio,
+  pkg-config,
+  glib,
+  alsa-lib,
+  pulseaudio,
+  nasm,
+  brotli,
+  fontconfig,
+  freetype,
+  harfbuzz,
+  icu,
+  jsoncpp,
+  libpng,
+  libwebp,
+  libxml2,
+  libxslt,
+  minizip,
+  ffmpeg_6,
+  writeShellScript,
+}:
+let
+  sources = callPackage ./sources.nix { };
+
+  platformMap = {
+    "x86_64" = "x64";
+    "i686" = "x86";
+    "arm" = "arm";
+    "aarch64" = "arm64";
+  };
+  cpuName = stdenv.hostPlatform.parsed.cpu.name;
+  gnArch = platformMap."${cpuName}" or (throw "unsupported arch ${cpuName}");
+  gnOs =
+    if stdenv.hostPlatform.isLinux then
+      "linux"
+    else if stdenv.hostPlatform.isDarwin then
+      "mac"
+    else
+      throw "unknown platform ${stdenv.hostPlatform.config}";
+  boringSslSymbols = fetchurl {
+    url = "https://raw.githubusercontent.com/livekit/rust-sdks/refs/tags/webrtc-dac8015-6/webrtc-sys/libwebrtc/boringssl_prefix_symbols.txt";
+    hash = "sha256-dAweArv8zjsFPENEKi9mNBQkt4y+hh3rCqG6QZjRC20=";
+  };
+  gnSystemLibraries = import ./mkSystemLibraries.nix {
+    inherit
+      brotli
+      fontconfig
+      freetype
+      harfbuzz
+      icu
+      jsoncpp
+      libpng
+      libwebp
+      libxml2
+      libxslt
+      minizip
+      ffmpeg_6
+      ;
+  };
+  gclient2nix = python3.pkgs.callPackage ./gclient2nix.nix { };
+in
+stdenv.mkDerivation {
+  pname = "livekit-libwebrtc";
+  version = "m114";
+
+  src = "${sources}/src";
+
+  patches = [
+    # Adds missing dependencies to generated LICENSE
+    (fetchpatch {
+      url = "https://raw.githubusercontent.com/livekit/rust-sdks/b41861c7b71762d5d85b3de07ae67ffcae7c3fa2/webrtc-sys/libwebrtc/patches/add_licenses.patch";
+      hash = "sha256-9A4KyRW1K3eoQxsTbPX0vOnj66TCs2Fxjpsu5wO8mGI=";
+    })
+    # Fixes the certificate chain, required for Let's Encrypt certs
+    (fetchpatch {
+      url = "https://raw.githubusercontent.com/livekit/rust-sdks/b41861c7b71762d5d85b3de07ae67ffcae7c3fa2/webrtc-sys/libwebrtc/patches/ssl_verify_callback_with_native_handle.patch";
+      hash = "sha256-/gneuCac4VGJCWCjJZlgLKFOTV+x7Lc5KVFnNIKenwM=";
+    })
+    # Adds dependencies and features required by livekit
+    (fetchpatch {
+      url = "https://raw.githubusercontent.com/livekit/rust-sdks/b41861c7b71762d5d85b3de07ae67ffcae7c3fa2/webrtc-sys/libwebrtc/patches/add_deps.patch";
+      hash = "sha256-EMNYcTcBYh51Tt96+HP43ND11qGKClfx3xIPQmIBSo0=";
+    })
+    # Fixes concurrency and localization issues
+    (fetchpatch {
+      url = "https://github.com/zed-industries/webrtc/commit/08f7a701a2eda6407670508fc2154257a3c90308.patch";
+      hash = "sha256-oWYZLwqjRSHDt92MqsxsoBSMyZKj1ubNbOXZRbPpbEw=";
+    })
+    # Required for dynamically linking to ffmpeg libraries and exposing symbols
+    ./0001-shared-libraries.patch
+  ];
+
+  postPatch =
+    ''
+      substituteInPlace tools/generate_shim_headers/generate_shim_headers.py \
+        --replace-fail "OFFICIAL_BUILD" "GOOGLE_CHROME_BUILD"
+
+      substituteInPlace BUILD.gn \
+        --replace-fail "rtc_static_library" "rtc_shared_library" \
+        --replace-fail "complete_static_lib = true" ""
+
+      substituteInPlace webrtc.gni \
+        --replace-fail "!build_with_chromium && is_component_build" "false"
+
+      substituteInPlace rtc_tools/BUILD.gn \
+        --replace-fail "\":frame_analyzer\"," ""
+
+      for lib in ${toString (builtins.attrNames gnSystemLibraries)}; do
+        if [ -d "third_party/$lib" ]; then
+          find "third_party/$lib" -type f \
+            \! -path "third_party/$lib/chromium/*" \
+            \! -path "third_party/$lib/google/*" \
+            \! -path "third_party/harfbuzz-ng/utils/hb_scoped.h" \
+            \! -regex '.*\.\(gn\|gni\|isolate\)' \
+            \! -name 'LICENSE*' \
+            \! -name 'COPYING*' \
+            -delete
+        fi
+      done
+    ''
+    + lib.optionalString stdenv.hostPlatform.isLinux ''
+      ln -sf ${lib.getExe gn} buildtools/linux64/gn
+      substituteInPlace build/toolchain/linux/BUILD.gn \
+        --replace 'toolprefix = "aarch64-linux-gnu-"' 'toolprefix = ""'
+    ''
+    + lib.optionalString stdenv.hostPlatform.isDarwin ''
+      ln -sf ${lib.getExe gn} buildtools/mac/gn
+      chmod +x build/toolchain/apple/linker_driver.py
+      patchShebangs build/toolchain/apple/linker_driver.py
+      substituteInPlace build/toolchain/apple/toolchain.gni --replace-fail "/bin/cp -Rc" "cp -a"
+    '';
+
+  nativeBuildInputs =
+    (builtins.concatLists (
+      lib.mapAttrsToList (
+        _: library: if (library.package ? dev) then [ library.package.dev ] else [ ]
+      ) gnSystemLibraries
+    ))
+    ++ [
+      gn
+      (python3.withPackages (ps: [ ps.setuptools ]))
+      ninja
+      git
+      cpio
+      pkg-config
+    ]
+    ++ lib.optionals stdenv.isDarwin [ xcbuild ];
+
+  buildInputs =
+    [ nasm ]
+    ++ (lib.mapAttrsToList (_: library: library.package) gnSystemLibraries)
+    ++ (lib.optionals stdenv.hostPlatform.isLinux [
+      glib
+      alsa-lib
+      pulseaudio
+    ])
+    ++ lib.optionals stdenv.hostPlatform.isDarwin [
+      apple-sdk_14
+      (darwinMinVersionHook "12.3")
+    ];
+
+  preConfigure = ''
+    echo "generate_location_tags = true" >> build/config/gclient_args.gni
+    echo "0" > build/util/LASTCHANGE.committime
+
+    python build/linux/unbundle/replace_gn_files.py \
+        --system-libraries ${toString (builtins.attrNames gnSystemLibraries)}
+  '';
+
+  gnFlags =
+    [
+      "is_debug=false"
+      "rtc_include_tests=false"
+      ''target_os="${gnOs}"''
+      ''target_cpu="${gnArch}"''
+      "treat_warnings_as_errors=false"
+      "rtc_enable_protobuf=false"
+      "rtc_include_tests=false"
+      "rtc_build_examples=false"
+      "rtc_build_tools=false"
+      "rtc_libvpx_build_vp9=true"
+      "enable_libaom=true"
+      "use_dummy_lastchange=true"
+      "is_component_build=true"
+      "enable_stripping=true"
+      "rtc_use_h264=true"
+      "use_custom_libcxx=false"
+      "use_rtti=true"
+    ]
+    ++ (lib.optionals stdenv.hostPlatform.isLinux [
+      "use_goma=false"
+      "rtc_use_pipewire=false"
+      "symbol_level=0"
+      "enable_iterator_debugging=false"
+      "rtc_use_x11=false"
+      "use_sysroot=false"
+      "is_clang=false"
+    ])
+    ++ (lib.optionals stdenv.hostPlatform.isDarwin [
+      ''mac_deployment_target="12.3"''
+      "rtc_enable_symbol_export=true"
+      "rtc_enable_objc_symbol_export=true"
+      "rtc_include_dav1d_in_internal_decoder_factory=true"
+      "clang_use_chrome_plugins=false"
+      "use_lld=false"
+      ''clang_base_path="${clang}"''
+    ]);
+
+  ninjaFlags =
+    [ ":default" ]
+    ++ lib.optionals stdenv.hostPlatform.isDarwin [
+      "api/audio_codecs:builtin_audio_decoder_factory"
+      "api/task_queue:default_task_queue_factory"
+      "sdk:native_api"
+      "sdk:default_codec_factory_objc"
+      "pc:peerconnection"
+      "sdk:videocapture_objc"
+      "sdk:mac_framework_objc"
+    ];
+
+  postBuild =
+    lib.optionalString stdenv.hostPlatform.isLinux ''
+      objcopy --redefine-syms="${boringSslSymbols}" "libwebrtc.so"
+    ''
+    + ''
+      # Generate licenses
+      python3 "../../tools_webrtc/libs/generate_licenses.py" \
+          --target ${if stdenv.hostPlatform.isDarwin then ":webrtc" else ":default"} $PWD $PWD
+    '';
+
+  installPhase =
+    ''
+      runHook preInstall
+
+      mkdir -p $out/{lib,include}
+      cp obj/webrtc.ninja $out/
+      cp args.gn $out/
+      cp LICENSE.md $out/
+    ''
+    + lib.optionalString stdenv.hostPlatform.isLinux ''
+      cp libwebrtc.so $out/lib/
+      cp libthird_party_boringssl.so $out/lib/
+    ''
+    + lib.optionalString stdenv.hostPlatform.isDarwin ''
+      mkdir -p $out/Library/Frameworks
+      cp -r WebRTC.framework $out/Library/Frameworks
+      cp libwebrtc.dylib $out/lib
+      cp libthird_party_boringssl.dylib $out/lib/
+    ''
+    + ''
+      cd ../..
+      find . -name "*.h" -print | cpio -pd $out/include
+
+      runHook postInstall
+    '';
+
+  postFixup = lib.optionalString stdenv.hostPlatform.isDarwin ''
+    boringssl="$out/lib/libthird_party_boringssl.dylib"
+    webrtc="$out/lib/libwebrtc.dylib"
+    framework="$out/Library/Frameworks/WebRTC.framework/Versions/A/WebRTC"
+
+    install_name_tool -id "$boringssl" "$boringssl"
+    install_name_tool -id "$webrtc" "$webrtc"
+    install_name_tool -change @rpath/libthird_party_boringssl.dylib "$boringssl" "$webrtc"
+    install_name_tool -id "$framework" "$framework"
+    install_name_tool -change @rpath/libthird_party_boringssl.dylib "$boringssl" "$framework"
+  '';
+
+  passthru.updateScript = writeShellScript "update-livekit-libwebrtc" ''
+    set -eou pipefail
+    cd pkgs/by-name/li/livekit-libwebrtc
+    ${lib.getExe gclient2nix} --main-source-path src https://github.com/webrtc-sdk/webrtc.git m114_release
+  '';
+
+  meta = {
+    description = "WebRTC library used by livekit";
+    homepage = "https://github.com/livekit/rust-sdks/";
+    license = lib.licenses.bsd3;
+    maintainers = with lib.maintainers; [
+      WeetHet
+      niklaskorz
+    ];
+    platforms = lib.platforms.linux ++ lib.platforms.darwin;
+  };
+}
--- a/pkgs/by-name/li/livekit-libwebrtc/sources.nix
+++ b/pkgs/by-name/li/livekit-libwebrtc/sources.nix
@ -0,0 +1,228 @@
+{
+  fetchFromGitHub,
+  fetchFromGitiles,
+  fetchgit,
+  fetchurl,
+  runCommand,
+  lib,
+}:
+let
+  sourceDerivations = {
+    "src" = fetchFromGitHub {
+      owner = "webrtc-sdk";
+      repo = "webrtc";
+      rev = "dac8015ce039c8658706b222746808f01968256b";
+      hash = "sha256-T5syfRzX/LfvEllVurzZPKffkciTd2inUEC2py78ZPA=";
+    };
+    "src/base" = fetchFromGitiles {
+      url = "https://chromium.googlesource.com/chromium/src/base";
+      rev = "fe22033c21d399a340b3f4604722463d9da25c6e";
+      hash = "sha256-iqtcXEtmCNioKRxfTCwiU/NG0xlQ1R/6GE1M6qC0XTU=";
+    };
+    "src/build" = fetchFromGitiles {
+      url = "https://chromium.googlesource.com/chromium/src/build";
+      rev = "a9d28a095c8b349f8319ee0d241a78e2c849928f";
+      hash = "sha256-5NguoLWm6v68fpyHK6SYbM6vHdaOT0quks5/SPW0XOI=";
+    };
+    "src/buildtools" = fetchFromGitiles {
+      url = "https://chromium.googlesource.com/chromium/src/buildtools";
+      rev = "539a6f68735c631f57ae33096e9e7fc059e049cf";
+      hash = "sha256-1u4BQqXcW4Z9LPx7lMjBLK8ouKkyb576FRvB2LGwf7Q=";
+    };
+    "src/testing" = fetchFromGitiles {
+      url = "https://chromium.googlesource.com/chromium/src/testing";
+      rev = "ee4801b4e9c2d945fff5236d8518511e6c00a29e";
+      hash = "sha256-xUfPwWVPoLxlCWHFKLWtRC1kVJgLgcvSoXPYmrseCXE=";
+    };
+    "src/third_party" = fetchFromGitiles {
+      url = "https://chromium.googlesource.com/chromium/src/third_party";
+      rev = "4f8bf4c6885ab577c7577c4cdd11d04eaf78e9ca";
+      hash = "sha256-4ehEerUw9IvghdPPrrh+WCm/XEpVe5PjjIRbQZpIsbY=";
+    };
+    "src/buildtools/clang_format/script" = fetchFromGitiles {
+      url = "https://chromium.googlesource.com/external/github.com/llvm/llvm-project/clang/tools/clang-format";
+      rev = "f97059df7f8b205064625cdb5f97b56668a125ef";
+      hash = "sha256-IL6ReGM6+urkXfGYe1BBOv+0XgCZv5i3Lib1q9COhig=";
+    };
+    "src/buildtools/third_party/libc++/trunk" = fetchFromGitiles {
+      url = "https://chromium.googlesource.com/external/github.com/llvm/llvm-project/libcxx";
+      rev = "bff81b702ff4b7f74b1c0ed02a4bcf6c2744a90b";
+      hash = "sha256-i/FGU9F7HlGJJuwoFMV4V05pf4pvsqNxrPBN223YjZQ=";
+    };
+    "src/buildtools/third_party/libc++abi/trunk" = fetchFromGitiles {
+      url = "https://chromium.googlesource.com/external/github.com/llvm/llvm-project/libcxxabi";
+      rev = "307bd163607c315d46103ebe1d68aab44bf93986";
+      hash = "sha256-Zka8AHFtHA4AC/Pbzc3pVqz/k2GYZYc8CeP1IXxGBUM=";
+    };
+    "src/buildtools/third_party/libunwind/trunk" = fetchFromGitiles {
+      url = "https://chromium.googlesource.com/external/github.com/llvm/llvm-project/libunwind";
+      rev = "2795322d57001de8125cfdf18cef804acff69e35";
+      hash = "sha256-u6FMD83JBBusQuWU7Hx5HREvLIFWUA4iN4If8poaHbE=";
+    };
+    "src/third_party/boringssl/src" = fetchFromGitiles {
+      url = "https://boringssl.googlesource.com/boringssl";
+      rev = "6776d5cd8fcdf6c5e05bae2d655076dbeaa56103";
+      hash = "sha256-KvQhpkn1pGQ/xPbkHcGgTTvL3GGRL1TfdSPYgfNn5bU=";
+    };
+    "src/third_party/breakpad/breakpad" = fetchFromGitiles {
+      url = "https://chromium.googlesource.com/breakpad/breakpad";
+      rev = "9bf8d1ec526cec139b2d3fba148ce81ccf2cceab";
+      hash = "sha256-c3/ksp01+cmSyzaD5SF0Lnnw+t78RwZAKCJnwg1NGXU=";
+    };
+    "src/third_party/catapult" = fetchFromGitiles {
+      url = "https://chromium.googlesource.com/catapult";
+      rev = "cae7ec667dee9f5c012b54ee9ffee94eb7beda14";
+      hash = "sha256-vK7rlGshfzPzaEdAxlP5vQ4USR/fC3BzPCh/rn0aAf4=";
+    };
+    "src/third_party/ced/src" = fetchFromGitiles {
+      url = "https://chromium.googlesource.com/external/github.com/google/compact_enc_det";
+      rev = "ba412eaaacd3186085babcd901679a48863c7dd5";
+      hash = "sha256-ySG74Rj2i2c/PltEgHVEDq+N8yd9gZmxNktc56zIUiY=";
+    };
+    "src/third_party/colorama/src" = fetchFromGitiles {
+      url = "https://chromium.googlesource.com/external/colorama";
+      rev = "3de9f013df4b470069d03d250224062e8cf15c49";
+      hash = "sha256-6ZTdPYSHdQOLYMSnE+Tp7PgsVTs3U2awGu9Qb4Rg/tk=";
+    };
+    "src/third_party/crc32c/src" = fetchFromGitiles {
+      url = "https://chromium.googlesource.com/external/github.com/google/crc32c";
+      rev = "fa5ade41ee480003d9c5af6f43567ba22e4e17e6";
+      hash = "sha256-urg0bmnfMfHagLPELp4WrNCz1gBZ6DFOWpDue1KsMtc=";
+    };
+    "src/third_party/depot_tools" = fetchFromGitiles {
+      url = "https://chromium.googlesource.com/chromium/tools/depot_tools";
+      rev = "6e714e6dfe62110c95fafed4bdeb365a69c6a77e";
+      hash = "sha256-7jPow77ejToE55KvQ7/eO0alMdMHcypfSyPceFAbZkw=";
+    };
+    "src/third_party/ffmpeg" = fetchFromGitiles {
+      url = "https://chromium.googlesource.com/chromium/third_party/ffmpeg";
+      rev = "8d21d41d8bec5c0b266ee305d1a708dc5c23b594";
+      hash = "sha256-UjrZJBtOQiiqxtLb8x24axord3OFvyCcRcgDwiYE/jw=";
+    };
+    "src/third_party/flatbuffers/src" = fetchFromGitiles {
+      url = "https://chromium.googlesource.com/external/github.com/google/flatbuffers";
+      rev = "a56f9ec50e908362e20254fcef28e62a2f148d91";
+      hash = "sha256-OQ8E+i30WRz/lPJmVDiF7+TPo4gZVu2Of9loxz3tswI=";
+    };
+    "src/third_party/grpc/src" = fetchFromGitiles {
+      url = "https://chromium.googlesource.com/external/github.com/grpc/grpc";
+      rev = "822dab21d9995c5cf942476b35ca12a1aa9d2737";
+      hash = "sha256-64JEVCx/PCM0dvv7kAQvSjLc0QbRAZVBDzwD/FAV6T8=";
+    };
+    "src/third_party/fontconfig/src" = fetchFromGitiles {
+      url = "https://chromium.googlesource.com/external/fontconfig";
+      rev = "06929a556fdc39c8fe12965b69070c8df520a33e";
+      hash = "sha256-0R+FEhtGXFiQWHEPRrJqaBW1JVfCojYI4NPDvYMBhoU=";
+    };
+    "src/third_party/freetype/src" = fetchFromGitiles {
+      url = "https://chromium.googlesource.com/chromium/src/third_party/freetype2";
+      rev = "9806414c15230d253d5219ea0dafeddb717307b1";
+      hash = "sha256-UbWtRb24U7Cv+PecVtoNG33Q1ItmkvssmW8Bh8qlFvA=";
+    };
+    "src/third_party/harfbuzz-ng/src" = fetchFromGitiles {
+      url = "https://chromium.googlesource.com/external/github.com/harfbuzz/harfbuzz";
+      rev = "2822b589bc837fae6f66233e2cf2eef0f6ce8470";
+      hash = "sha256-qwtRORl/Pu4M9EvW8MdK8onFMCw/4+57FEBjoNt4qoY=";
+    };
+    "src/third_party/google_benchmark/src" = fetchFromGitiles {
+      url = "https://chromium.googlesource.com/external/github.com/google/benchmark";
+      rev = "b177433f3ee2513b1075140c723d73ab8901790f";
+      hash = "sha256-h2ryAQAuHI54Cni88L85e7Np4KATGVTRdDcmUvCNeWc=";
+    };
+    "src/third_party/gtest-parallel" = fetchFromGitiles {
+      url = "https://chromium.googlesource.com/external/github.com/google/gtest-parallel";
+      rev = "f4d65b555894b301699c7c3c52906f72ea052e83";
+      hash = "sha256-dzWXJHPb8RHqxoi/gA9npwnjAsT8gg7A90g/dx8LVwQ=";
+    };
+    "src/third_party/googletest/src" = fetchFromGitiles {
+      url = "https://chromium.googlesource.com/external/github.com/google/googletest";
+      rev = "af29db7ec28d6df1c7f0f745186884091e602e07";
+      hash = "sha256-VYRjcM3dDY2FarviXyFMgSkXCqKfWXwtGAj2Msgm7zg=";
+    };
+    "src/third_party/icu" = fetchFromGitiles {
+      url = "https://chromium.googlesource.com/chromium/deps/icu";
+      rev = "d8daa943f64cd5dd2a55e9baf2e655ab4bfa5ae9";
+      hash = "sha256-47Xxb5IFbRmdO3oADjn13fm7aIYFXh2R4YVZIJAy22U=";
+    };
+    "src/third_party/jsoncpp/source" = fetchFromGitiles {
+      url = "https://chromium.googlesource.com/external/github.com/open-source-parsers/jsoncpp";
+      rev = "42e892d96e47b1f6e29844cc705e148ec4856448";
+      hash = "sha256-bSLNcoYBz3QCt5VuTR056V9mU2PmBuYBa0W6hFg2m8Q=";
+    };
+    "src/third_party/libFuzzer/src" = fetchFromGitiles {
+      url = "https://chromium.googlesource.com/chromium/llvm-project/compiler-rt/lib/fuzzer";
+      rev = "debe7d2d1982e540fbd6bd78604bf001753f9e74";
+      hash = "sha256-HG3KHhKQnr4hdnUK/2QhcxRdNxh38fhU54JKKzqZaio=";
+    };
+    "src/third_party/libjpeg_turbo" = fetchFromGitiles {
+      url = "https://chromium.googlesource.com/chromium/deps/libjpeg_turbo";
+      rev = "aa4075f116e4312537d0d3e9dbd5e31096539f94";
+      hash = "sha256-QnXMR9qqRiYfV1sUJvKVvLQ9A022lYKbsrI9HOU9LCs=";
+    };
+    "src/third_party/libsrtp" = fetchFromGitiles {
+      url = "https://chromium.googlesource.com/chromium/deps/libsrtp";
+      rev = "5b7c744eb8310250ccc534f3f86a2015b3887a0a";
+      hash = "sha256-pfLFh2JGk/g0ZZxBKTaYW9/PBpkCm0rtJeyNePUMTTc=";
+    };
+    "src/third_party/dav1d/libdav1d" = fetchFromGitiles {
+      url = "https://chromium.googlesource.com/external/github.com/videolan/dav1d";
+      rev = "d426d1c91075b9c552b12dd052af1cd0368f05a2";
+      hash = "sha256-FivzwqCvlY89q2znGvfNks+hje/iUFHcKPb19FyAZhM=";
+    };
+    "src/third_party/libaom/source/libaom" = fetchFromGitiles {
+      url = "https://aomedia.googlesource.com/aom";
+      rev = "5a0903824082f41123e8365b5b99ddb6ced8971c";
+      hash = "sha256-j8b0xM7hHNqYIeUQjf+c7LyzcfZVJx64Xqo9gIRtsYU=";
+    };
+    "src/third_party/perfetto" = fetchFromGitiles {
+      url = "https://android.googlesource.com/platform/external/perfetto";
+      rev = "20b114cd063623e63ef1b0a31167d60081567e51";
+      hash = "sha256-6BpUd+BplRR/0eUIYz5SehzrpNHPfUm2Qv6U1+Mxy8g=";
+    };
+    "src/third_party/libvpx/source/libvpx" = fetchFromGitiles {
+      url = "https://chromium.googlesource.com/webm/libvpx";
+      rev = "7aaffe2df4c9426ab204a272ca5ca52286ca86d4";
+      hash = "sha256-Uis24FzUtM38ktPG/wDJLiHZYmpmYFGbuQ/SWnmZJSA=";
+    };
+    "src/third_party/libyuv" = fetchFromGitiles {
+      url = "https://chromium.googlesource.com/libyuv/libyuv";
+      rev = "77c2121f7e6b8e694d6e908bbbe9be24214097da";
+      hash = "sha256-LLmTW05GxoXgNkLRHp3e6gb7glMgJo1moc6lPLVHk6w=";
+    };
+    "src/third_party/lss" = fetchFromGitiles {
+      url = "https://chromium.googlesource.com/linux-syscall-support";
+      rev = "ce877209e11aa69dcfffbd53ef90ea1d07136521";
+      hash = "sha256-hE8uZf9Fst66qJkoVYChiB8G41ie+k9M4X0W+5JUSdw=";
+    };
+    "src/third_party/nasm" = fetchFromGitiles {
+      url = "https://chromium.googlesource.com/chromium/deps/nasm";
+      rev = "7fc833e889d1afda72c06220e5bed8fb43b2e5ce";
+      hash = "sha256-L+b3X3vsfpY6FSlIK/AHhxhmq2cXd50vND6uT6yn8Qs=";
+    };
+    "src/third_party/openh264/src" = fetchFromGitiles {
+      url = "https://chromium.googlesource.com/external/github.com/cisco/openh264";
+      rev = "09a4f3ec842a8932341b195c5b01e141c8a16eb7";
+      hash = "sha256-J7Eqe2QevZh1xfap19W8AVCcwfRu7ztknnbKFJUAH1c=";
+    };
+    "src/tools" = fetchFromGitiles {
+      url = "https://chromium.googlesource.com/chromium/src/tools";
+      rev = "bafae7909cbbcd277d29c0da0809001a8d6f4a14";
+      hash = "sha256-MK5M9RrX+cX4S7vsMgNVQ2YkNbEuvizKueuc1mA5jyU=";
+    };
+  };
+  namedSourceDerivations = builtins.mapAttrs (
+    path: drv:
+    drv.overrideAttrs {
+      name = lib.strings.sanitizeDerivationName path;
+    }
+  ) sourceDerivations;
+in
+runCommand "combined-sources" { } (
+  lib.concatLines (
+    [ "mkdir $out" ]
+    ++ (lib.mapAttrsToList (path: drv: ''
+      mkdir -p $out/${path}
+      cp --no-preserve=mode --reflink=auto -rfT ${drv} $out/${path}
+    '') namedSourceDerivations)
+  )
+)