nixpkgs/pkgs/development/tools/build-managers/gn/default.nix

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{ stdenv, fetchgit, fetchurl, python, ninja, libevent, xdg-user-dirs }:
let
date = "20161008";
sourceTree = {
"src/base" = {
rev = "e71a514e60b085cc92bf6ef951ec329f52c79f9f";
sha256 = "0zycbssmd2za0zij8czcs1fr66fi12f1g5ysc8fzkf8khbs5h6a9";
};
"src/build" = {
rev = "17093d45bf738e9ae4b6294492860ee65218a657";
sha256 = "0i9py78c3f46sc789qvdhmgjgyrghysbqjgr67iypwphw52jv2dz";
};
"src/tools/gn" = {
rev = "9ff32cf3f1f4ad0212ac674b6303e7aa68f44f3f";
sha256 = "14jr45k5fgcqk9d18fd77sijlqavvnv0knndh74zyb0b60464hz1";
};
"testing/gtest" = {
rev = "585ec31ea716f08233a815e680fc0d4699843938";
sha256 = "0csn1cza66851nmxxiw42smsm3422mx67vcyykwn0a71lcjng6rc";
};
};
mkDepend = path: attrs: fetchgit {
url = "https://chromium.googlesource.com/chromium/${path}";
inherit (attrs) rev sha256;
};
in stdenv.mkDerivation rec {
name = "gn-${version}";
version = "0.0.0.${date}";
unpackPhase = ''
${with stdenv.lib; concatStrings (mapAttrsToList (path: sha256: ''
dest=source/${escapeShellArg (removePrefix "src/" path)}
mkdir -p "$(dirname "$dest")"
cp --no-preserve=all -rT ${escapeShellArg (mkDepend path sha256)} "$dest"
'') sourceTree)}
( mkdir -p source/third_party
cd source/third_party
unpackFile ${xdg-user-dirs.src}
mv * xdg_user
)
'';
sourceRoot = "source";
postPatch = ''
# GN's bootstrap script relies on shebangs (which are relying on FHS paths),
# except when on Windows. So instead of patchShebang-ing it, let's just
# force the same behaviour as on Windows.
sed -i -e '/^def *check_call/,/^[^ ]/ {
s/is_win/True/
}' tools/gn/bootstrap/bootstrap.py
# Patch out Chromium-bundled libevent and xdg_user_dirs
sed -i -e '/static_libraries.*libevent/,/^ *\]\?[})]$/d' \
tools/gn/bootstrap/bootstrap.py
'';
NIX_LDFLAGS = "-levent";
nativeBuildInputs = [ python ninja ];
buildInputs = [ libevent ];
buildPhase = ''
python tools/gn/bootstrap/bootstrap.py -v -s --no-clean
'';
installPhase = ''
install -vD out_bootstrap/gn "$out/bin/gn"
'';
meta = {
description = "A meta-build system that generates NinjaBuild files";
homepage = "https://chromium.googlesource.com/chromium/src/tools/gn/";
license = stdenv.lib.licenses.bsd3;
};
}