nixpkgs/pkgs/development/tools/analysis/retdec/yaracpp.nix
2018-10-11 23:53:00 +02:00

50 lines
1.7 KiB
Nix

{ stdenv
, fetchFromGitHub
, coreutils
}:
let
yara = fetchFromGitHub {
owner = "avast-tl";
repo = "yara";
rev = "ea101c5856941f39cad2db3012f2660d1d5c8b65";
sha256 = "033ssx2hql5k4pv9si043s3mjq2b748ymjzif8pg6rdwh260faky";
};
in stdenv.mkDerivation rec {
# only fetches the yaracpp source patched to work with a local yara clone,
# does not build anything
name = "yaracpp-src-${version}";
version = "2018-10-09";
rev = "b92bde0e59e3b75bc445227e04b71105771dee8b"; # as specified in retdec/deps/yaracpp/CMakeLists.txt
src = fetchFromGitHub {
inherit rev;
owner = "avast-tl";
repo = "yaracpp";
sha256 = "0fan7q79j7s3bjmhsd2nw6sqyi14xgikn7mr2p4nj87lick5l4a2";
};
postPatch = ''
# check if our version of yara is the same version that upstream expects
echo "Checking version of yara"
expected_rev="$( sed -n -e 's|.*URL https://github.com/.*/archive/\(.*\)\.zip.*|\1|p' "deps/CMakeLists.txt" )"
if [ "$expected_rev" != '${yara.rev}' ]; then
echo "The yara dependency has the wrong version: ${yara.rev} while $expected_rev is expected."
exit 1
fi
# patch the CMakeLists.txt file to use our local copy of the dependency instead of fetching it at build time
sed -i -e "s|URL .*|URL ${yara}|" "deps/CMakeLists.txt"
# abuse the CONFIGURE_COMMAND to make the source writeable after copying it to the build locatoin (necessary for the build)
sed -i -e 's|CONFIGURE_COMMAND ""|CONFIGURE_COMMAND COMMAND ${coreutils}/bin/chmod -R u+w .|' "deps/CMakeLists.txt"
'';
buildPhase = "# do nothing";
configurePhase = "# do nothing";
installPhase = ''
mkdir -p "$out"
cp -r * "$out"
'';
}