dat: init at 13.13.1

This commit is contained in:
Pavol Rusnak 2020-01-23 13:13:34 +01:00
parent e1dac71685
commit e65da6853f
No known key found for this signature in database
GPG key ID: 91F3B339B9A02A3D
2 changed files with 94 additions and 0 deletions

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@ -0,0 +1,92 @@
{ 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 ];
};
}

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@ -25899,4 +25899,6 @@ in
unstick = callPackage ../os-specific/linux/unstick {};
quartus-prime-lite = callPackage ../applications/editors/quartus-prime {};
dat = callPackage ../applications/networking/dat { };
}