From e9f50d20acec191b2a96b22386e4ad3cc3ded703 Mon Sep 17 00:00:00 2001
From: Marek Mahut <marek.mahut@gmail.com>
Date: Thu, 30 Jan 2020 14:54:30 +0100
Subject: [PATCH] dat: remove and link to nodePackages.dat

---
 pkgs/applications/networking/dat/default.nix | 92 --------------------
 pkgs/top-level/all-packages.nix              |  2 +-
 2 files changed, 1 insertion(+), 93 deletions(-)
 delete mode 100644 pkgs/applications/networking/dat/default.nix

diff --git a/pkgs/applications/networking/dat/default.nix b/pkgs/applications/networking/dat/default.nix
deleted file mode 100644
index 2e0f8005bdb..00000000000
--- a/pkgs/applications/networking/dat/default.nix
+++ /dev/null
@@ -1,92 +0,0 @@
-{ stdenv
-, fetchurl
-, unzip
-}:
-
-stdenv.mkDerivation rec {
-  pname = "dat";
-  version = "13.13.1";
-
-  suffix = {
-    x86_64-darwin = "macos-x64";
-    x86_64-linux  = "linux-x64";
-  }.${stdenv.hostPlatform.system} or (throw "Unsupported system: ${stdenv.hostPlatform.system}");
-
-  src = fetchurl {
-    url = "https://github.com/datproject/dat/releases/download/v${version}/${pname}-${version}-${suffix}.zip";
-    sha256 = {
-      x86_64-darwin = "1qj38zn33hhr2v39jw14k2af091bafh5yvhs91h5dnjb2r8yxnaq";
-      x86_64-linux  = "0vgn57kf3j1pbfxlhj4sl1sm2gfd2gcvhk4wz5yf5mzq1vj9ivpv";
-    }.${stdenv.hostPlatform.system} or (throw "Unsupported system: ${stdenv.hostPlatform.system}");
-  };
-
-  buildInputs = [ unzip ];
-
-  dontConfigure = true;
-  dontBuild = true;
-  dontStrip = true;
-  dontPatchELF = true;
-
-  installPhase = ''
-    mkdir -p $out/bin
-    mv dat $out/bin
-  '';
-
-  # dat is a node program packaged using zeit/pkg.
-  # thus, it contains hardcoded offsets.
-  # patchelf shifts these locations when it expands headers.
-
-  # this could probably be generalised into allowing any program packaged
-  # with zeit/pkg to be run on nixos.
-
-  preFixup = let
-    libPath = stdenv.lib.makeLibraryPath [stdenv.cc.cc];
-  in stdenv.lib.optionalString (!stdenv.isDarwin) ''
-    orig_size=$(stat --printf=%s $out/bin/dat)
-
-    patchelf --set-interpreter "$(cat $NIX_CC/nix-support/dynamic-linker)" $out/bin/dat
-    patchelf --set-rpath ${libPath} $out/bin/dat
-    chmod +x $out/bin/dat
-
-    new_size=$(stat --printf=%s $out/bin/dat)
-
-    ###### zeit-pkg fixing starts here.
-    # we're replacing plaintext js code that looks like
-    # PAYLOAD_POSITION = '1234                  ' | 0
-    # [...]
-    # PRELUDE_POSITION = '1234                  ' | 0
-    # ^-----20-chars-----^^------22-chars------^
-    # ^-- grep points here
-    #
-    # var_* are as described above
-    # shift_by seems to be safe so long as all patchelf adjustments occur
-    # before any locations pointed to by hardcoded offsets
-
-    var_skip=20
-    var_select=22
-    shift_by=$(expr $new_size - $orig_size)
-
-    function fix_offset {
-      # $1 = name of variable to adjust
-      location=$(grep -obUam1 "$1" $out/bin/dat | cut -d: -f1)
-      location=$(expr $location + $var_skip)
-
-      value=$(dd if=$out/bin/dat iflag=count_bytes,skip_bytes skip=$location \
-                 bs=1 count=$var_select status=none)
-      value=$(expr $shift_by + $value)
-
-      echo -n $value | dd of=$out/bin/dat bs=1 seek=$location conv=notrunc
-    }
-
-    fix_offset PAYLOAD_POSITION
-    fix_offset PRELUDE_POSITION
-  '';
-
-  meta = with stdenv.lib; {
-    description = "Peer-to-peer sharing and live synchronization of files";
-    homepage = "https://dat.foundation/";
-    license = licenses.bsd3;
-    platforms = [ "x86_64-linux" "x86_64-darwin" ];
-    maintainers = with maintainers; [ prusnak ];
-  };
-}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 9b6f410493a..6b15194fd0f 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -25926,5 +25926,5 @@ in
 
   quartus-prime-lite = callPackage ../applications/editors/quartus-prime {};
 
-  dat = callPackage ../applications/networking/dat { };
+  dat = nodePackages.dat;
 }