1 files changed, 54 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/development/libraries/re2/default.nix b/nixpkgs/pkgs/development/libraries/re2/default.nix
new file mode 100644
index 000000000000..22d803c17be6
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/re2/default.nix
@@ -0,0 +1,54 @@
+{ lib, stdenv, fetchFromGitHub, fetchpatch, nix-update-script }:
+
+stdenv.mkDerivation rec {
+  pname = "re2";
+  version = "2021-11-01";
+
+  src = fetchFromGitHub {
+    owner = "google";
+    repo = "re2";
+    rev = version;
+    sha256 = "sha256-q8u7xNp6n17F6twPoVkix8iCKPWUN+qg6rhSR4Dv+bI=";
+  };
+
+  patches = [
+    # Pull upstreal fix for parallel testing.
+    (fetchpatch {
+      name = "parallel-tests.patch";
+      url = "https://github.com/google/re2/commit/9262284a7edc1b83e7172f4ec2d7967d695e7420.patch";
+      sha256 = "1knhfx9cs4841r09jw4ha6mdx9qwpvlcxvd04i8vr84kd0lilqms";
+    })
+  ];
+
+  preConfigure = ''
+    substituteInPlace Makefile --replace "/usr/local" "$out"
+    # we're using gnu sed, even on darwin
+    substituteInPlace Makefile  --replace "SED_INPLACE=sed -i '''" "SED_INPLACE=sed -i"
+  '';
+
+  buildFlags = lib.optionals stdenv.hostPlatform.isStatic [ "static" ];
+
+  enableParallelBuilding = true;
+
+  preCheck = "patchShebangs runtests";
+  doCheck = true;
+  checkTarget = "test";
+
+  installTargets = lib.optionals stdenv.hostPlatform.isStatic [ "static-install" ];
+
+  doInstallCheck = true;
+  installCheckTarget = "testinstall";
+
+  passthru = {
+    updateScript = nix-update-script {
+      attrPath = pname;
+    };
+  };
+
+  meta = {
+    homepage = "https://github.com/google/re2";
+    description = "An efficient, principled regular expression library";
+    license = lib.licenses.bsd3;
+    platforms = with lib.platforms; all;
+  };
+}