NixOs-trying-pdfium-build

{ stdenv, ninja, which, nodejs, fetchurl, gnutar

# default dependencies
, bzip2, flac, speex, libopus
, libevent, expat, libjpeg, snappy
, libpng, libcap
, xdg_utils, yasm, minizip, libwebp
, libusb1, pciutils, nss, re2, zlib, libvpx

, python2Packages, perl, pkgconfig
, nspr, systemd, kerberos
, utillinux, alsaLib
, bison, gperf
, glib, gtk2, gtk3, dbus_glib
, libXScrnSaver, libXcursor, libXtst, mesa
, protobuf, speechd, libXdamage, cups
, ffmpeg, harfbuzz, harfbuzz-icu, libxslt, libxml2

# optional dependencies
, libgcrypt ? null # gnomeSupport || cupsSupport
, libexif ? null # only needed for Chromium before version 51

# package customization
, enableNaCl ? false
, enableHotwording ? false
, enableWideVine ? false
, gnomeSupport ? false, gnome ? null
, gnomeKeyringSupport ? false, libgnome_keyring3 ? null
, proprietaryCodecs ? true
, cupsSupport ? true
, pulseSupport ? false, libpulseaudio ? null

, upstream-info
}:

buildFun:

with stdenv.lib;

# see http://www.linuxfromscratch.org/blfs/view/cvs/xsoft/chromium.html

let
  # The additional attributes for creating derivations based on the chromium
  # source tree.
  extraAttrs = buildFun base;

  mkGnFlags =
    let
      # Serialize Nix types into GN types according to this document:
      # https://chromium.googlesource.com/chromium/src/+/master/tools/gn/docs/language.md
      mkGnString = value: "\"${escape ["\"" "$" "\\"] value}\"";
      sanitize = value:
        if value == true then "true"
        else if value == false then "false"
        else if isList value then "[${concatMapStringsSep ", " sanitize value}]"
        else if isInt value then toString value
        else if isString value then mkGnString value
        else throw "Unsupported type for GN value `${value}'.";
      toFlag = key: value: "${key}=${sanitize value}";
    in attrs: concatStringsSep " " (attrValues (mapAttrs toFlag attrs));

  gnSystemLibraries = [
    "flac" "harfbuzz-ng" "libwebp" "libxslt" "yasm" "opus" "snappy" "libpng" "zlib"
    # "libjpeg" # fails with multiple undefined references to chromium_jpeg_*
    # "re2" # fails with linker errors
    # "ffmpeg" # https://crbug.com/731766
  ];

  opusWithCustomModes = libopus.override {
    withCustomModes = true;
  };

  defaultDependencies = [
    bzip2 flac speex opusWithCustomModes
    libevent expat libjpeg snappy
    libpng libcap
    xdg_utils yasm minizip libwebp
    libusb1 re2 zlib
    ffmpeg harfbuzz-icu libxslt libxml2
  ];

  # build paths and release info
  packageName = extraAttrs.packageName or extraAttrs.name;
  buildType = "Release";
  buildPath = "out/${buildType}";
  libExecPath = "$out/libexec/${packageName}";

  freetype_source = fetchurl {
    url = http://anduin.linuxfromscratch.org/BLFS/other/chromium-freetype.tar.xz;
    sha256 = "1vhslc4xg0d6wzlsi99zpah2xzjziglccrxn55k7qna634wyxg77";
  };

  versionRange = min-version: upto-version:
    let inherit (upstream-info) version;
        result = versionAtLeast version min-version && versionOlder version upto-version;
        stable-version = (import ./upstream-info.nix).stable.version;
    in if versionAtLeast stable-version upto-version
       then warn "chromium: stable version ${stable-version} is newer than a patchset bounded at ${upto-version}. You can safely delete it."
            result
       else result;

  base = rec {
    name = "${packageName}-${version}";
    inherit (upstream-info) version;
    inherit packageName buildType buildPath;

    src = upstream-info.main;

    nativeBuildInputs = [
      ninja which python2Packages.python perl pkgconfig
      python2Packages.ply python2Packages.jinja2 nodejs
      gnutar
    ];


    buildInputs = defaultDependencies ++ [
      nspr nss systemd
      utillinux alsaLib
      bison gperf kerberos
      glib gtk2 gtk3 dbus_glib
      libXScrnSaver libXcursor libXtst mesa
      pciutils protobuf speechd libXdamage
    ] ++ optional gnomeKeyringSupport libgnome_keyring3
      ++ optionals gnomeSupport [ gnome.GConf libgcrypt ]
      ++ optionals cupsSupport [ libgcrypt cups ]
      ++ optional pulseSupport libpulseaudio;

    patches = [
      ./patches/nix_plugin_paths_52.patch
      # To enable ChromeCast, go to chrome://flags and set "Load Media Router Component Extension" to Enabled
      # Fixes Chromecast: https://bugs.chromium.org/p/chromium/issues/detail?id=734325
      ./patches/fix_network_api_crash.patch
    ] # As major versions are added, you can trawl the gentoo and arch repos at
      # https://gitweb.gentoo.org/repo/gentoo.git/plain/www-client/chromium/
      # https://git.archlinux.org/svntogit/packages.git/tree/trunk?h=packages/chromium
      # for updated patches and hints about build flags
      ++ optionals (versionRange "61" "62") [
      ./patches/chromium-gn-bootstrap-r14.patch
      ./patches/chromium-gcc-r1.patch
      ./patches/chromium-atk-r1.patch
      ./patches/chromium-gcc5-r1.patch
    ]
      ++ optionals (versionRange "62" "63") [
      ./patches/chromium-gn-bootstrap-r17.patch
      ./patches/chromium-gcc5-r2.patch
      ./patches/chromium-glibc2.26-r1.patch
    ]
      ++ optionals (versionAtLeast version "63") [
      ./patches/chromium-gn-bootstrap-r19.patch
      ./patches/chromium-gcc5-r2.patch
      ./patches/chromium-glibc2.26-r1.patch
      ./patches/chromium-sysroot-r1.patch
    ]
      ++ optional enableWideVine ./patches/widevine.patch;

    postPatch = ''
      # We want to be able to specify where the sandbox is via CHROME_DEVEL_SANDBOX
      substituteInPlace sandbox/linux/suid/client/setuid_sandbox_host.cc \
        --replace \
          'return sandbox_binary;' \
          'return base::FilePath(GetDevelSandboxPath());'

      sed -i -e '/lib_loader.*Load/s!"\(libudev\.so\)!"${systemd.lib}/lib/\1!' \
        device/udev_linux/udev?_loader.cc

      sed -i -e '/libpci_loader.*Load/s!"\(libpci\.so\)!"${pciutils}/lib/\1!' \
        gpu/config/gpu_info_collector_linux.cc

      sed -i -re 's/([^:])\<(isnan *\()/\1std::\2/g' \
        chrome/browser/ui/webui/engagement/site_engagement_ui.cc

     sed -i -e '/#include/ {
        i #include <algorithm>
        :l; n; bl
      }' gpu/config/gpu_control_list.cc
                                            

Halfway through trying to get pdfium to build under NixOS.