From 55d8a539ad3384394b473d3d3155e1ff92865b2b Mon Sep 17 00:00:00 2001
From: Yuriy Taraday <yorik.sar@gmail.com>
Date: Fri, 7 Sep 2018 22:04:22 +0400
Subject: [PATCH] gn: 20180423 -> 20180830

gn sources have been moved into separate repository which greatly
simplify build process.
---
 .../tools/build-managers/gn/default.nix       | 122 +++---------------
 1 file changed, 18 insertions(+), 104 deletions(-)

diff --git a/pkgs/development/tools/build-managers/gn/default.nix b/pkgs/development/tools/build-managers/gn/default.nix
index 399486c4d90..06af89dac7a 100644
--- a/pkgs/development/tools/build-managers/gn/default.nix
+++ b/pkgs/development/tools/build-managers/gn/default.nix
@@ -1,107 +1,26 @@
-{ stdenv, lib, fetchgit, fetchzip, fetchpatch
-, libevent, ninja, python, darwin }:
+{ stdenv, lib, fetchgit, fetchzip, fetchpatch, darwin
+, git, ninja, python }:
 
-let
-  depsGit = {
-    "tools/gn" = fetchgit {
-      url = "https://chromium.googlesource.com/chromium/src/tools/gn";
-      rev = "0fa417a0d2d8484e9a5a636e3301da322f586601";
-      sha256 = "0pigcl14yc4aak6q1ghfjxdz2ah4fg4m2r5y3asw2rz6mpr5y9z0";
-    };
-    "base" = fetchgit {
-      url = "https://chromium.googlesource.com/chromium/src/base";
-      rev = "ab1d7c3b92ce9c9bc756bdefb8338360d1a33a1e";
-      sha256 = "15wis6qg9ka62k6v1vamg0bp3v5vkpapg485jsn4bbfcaqp6di0f";
-    };
-    "build" = fetchgit {
-      url = "https://chromium.googlesource.com/chromium/src/build";
-      rev = "8d44c08a4c9997695db8098198bdd5026bc7a6f9";
-      sha256 = "19sajgf55xfmvnwvy2ss7g6pyljp751cfsws30w415m6m00lmpxl";
-    };
-    "config" = fetchgit {
-      url = "https://chromium.googlesource.com/chromium/src/build/config";
-      rev = "14116c0cdcb9e28995ca8bb384a12e5c9dbd1dbb";
-      sha256 = "04nif0lm4wcy05b7xhal023874s4r0iq067q57cgwdm72i2gml40";
-    };
-    "testing/gtest" = fetchgit {
-      url = "https://chromium.googlesource.com/chromium/testing/gtest";
-      rev = "585ec31ea716f08233a815e680fc0d4699843938";
-      sha256 = "0csn1cza66851nmxxiw42smsm3422mx67vcyykwn0a71lcjng6rc";
-    };
-    "third_party/apple_apsl" = fetchzip {
-      url = "https://chromium.googlesource.com/chromium/src/third_party/+archive/8e6ccb8c74db6dfa15dd21401ace3ac96c054cf7/apple_apsl.tar.gz";
-      sha256 = "1vgcg741lwz84kdy0qc5wn9dxx3j9zh6a9d185fpygdsipwikqv8";
-      stripRoot = false;
-    };
-    "buildtools/third_party/libc++/trunk" = fetchgit {
-      url = "https://chromium.googlesource.com/chromium/llvm-project/libcxx";
-      rev = "ece1de8658d749e19c12cacd4458cc330eca94e3";
-      sha256 = "1nlyvfkzhchwv9b18bh82jcamqv3acj26ah9ajs31f2dql05amhg";
-    };
-    "buildtools/third_party/libc++abi/trunk" = fetchgit {
-      url = "https://chromium.googlesource.com/chromium/llvm-project/libcxxabi";
-      rev = "52c7a3760aef1df328a9bc957f686410872f0dc0";
-      sha256 = "1aam539j01381q27b7xhij18pz3h0lhw08hglvqq4hgvlqx5cn2s";
-    };
+stdenv.mkDerivation rec {
+  name = "gn-${version}";
+  version = "20180830";
+
+  src = fetchgit {
+    url = "https://gn.googlesource.com/gn";
+    rev = "106b823805adcc043b2bfe5bc21d58f160a28a7b";
+    leaveDotGit = true;  # gen.py uses "git describe" to generate last_commit_position.h
+    deepClone = true;
+    sha256 = "1276jwk3424i78zp21f6hp7idvg6r8qxp8sdfaw8ilkmp7ss19c8";
   };
 
-in stdenv.mkDerivation rec {
-  name = "gn-${version}";
-  version = "20180423";
-  sourceRoot = ".";
-
-  unpackPhase = ''
-    ${lib.concatStringsSep "\n" (
-      lib.mapAttrsToList (n: v: ''
-        mkdir -p $sourceRoot/${n}
-        if [ -d ${v} ]; then
-          cp -r ${v}/* $sourceRoot/${n}
-        else
-          mkdir -p $sourceRoot/${n}
-          pushd $sourceRoot/${n}
-          unpackFile ${v}
-          popd
-        fi
-      '') depsGit)}
-
-    chmod u+w -R $sourceRoot
-  '';
-
-  patches = [
-    (fetchpatch {
-      url = "https://raw.githubusercontent.com/Eloston/ungoogled-chromium/3375fbc7b865dafe1230431a1e3f9bffd27ec184/resources/patches/ungoogled-chromium/macos/fix-gn-bootstrap.patch";
-      sha256 = "1h8jgxznm7zrxlzb4wcfx4zx4lyvfrmpd0r7cd7h0s23wn8ibb3a";
-    })
-  ];
-
   postPatch = ''
-    # Disable libevent bootstrapping (we will provide it).
-    sed -i -e '/static_libraries.*libevent/,/^ *\]\?[})]$/d' \
-      tools/gn/bootstrap/bootstrap.py
-
     # FIXME Needed with old Apple SDKs
     substituteInPlace base/mac/foundation_util.mm \
       --replace "NSArray<NSString*>*" "NSArray*"
-    substituteInPlace base/mac/sdk_forward_declarations.h \
-      --replace "NSDictionary<VNImageOption, id>*" "NSDictionary*" \
-      --replace "NSArray<VNRequest*>*" "NSArray*" \
-      --replace "typedef NSString* VNImageOption NS_STRING_ENUM" "typedef NSString* VNImageOption"
-
-    # Patch shebangs (for sandbox build)
-    patchShebangs build
   '';
 
-  # FIXME again this shouldn't be necessary but I can't figure out a better way
-  NIX_CFLAGS_COMPILE = "-DMAC_OS_X_VERSION_MAX_ALLOWED=MAC_OS_X_VERSION_10_10 -DMAC_OS_X_VERSION_MIN_REQUIRED=MAC_OS_X_VERSION_10_10";
-
-  NIX_LDFLAGS = "-levent";
-
-  nativeBuildInputs = [ ninja python ];
-  buildInputs = [ libevent ]
-
-  # FIXME These dependencies shouldn't be needed but can't find a way
-  # around it. Chromium pulls this in while bootstrapping GN.
-  ++ lib.optionals stdenv.isDarwin (with darwin; with apple_sdk.frameworks; [
+  nativeBuildInputs = [ ninja python git ];
+  buildInputs = lib.optionals stdenv.isDarwin (with darwin; with apple_sdk.frameworks; [
     libobjc
     cctools
 
@@ -109,25 +28,20 @@ in stdenv.mkDerivation rec {
     ApplicationServices
     Foundation
     AppKit
-    ImageCaptureCore
-    CoreBluetooth
-    IOBluetooth
-    CoreWLAN
-    Quartz
-    Cocoa
   ]);
 
   buildPhase = ''
-    python tools/gn/bootstrap/bootstrap.py -s
+    python build/gen.py --no-sysroot
+    ninja -j $NIX_BUILD_CORES -C out gn
   '';
 
   installPhase = ''
-    install -vD out/Release/gn "$out/bin/gn"
+    install -vD out/gn "$out/bin/gn"
   '';
 
   meta = with lib; {
     description = "A meta-build system that generates NinjaBuild files";
-    homepage = https://chromium.googlesource.com/chromium/src/tools/gn;
+    homepage = https://gn.googlesource.com/gn;
     license = licenses.bsd3;
     platforms = platforms.unix;
     maintainers = with maintainers; [ stesie matthewbauer ];