87 lines
2.4 KiB
Nix
87 lines
2.4 KiB
Nix
{ stdenv, lib, fetchurl }:
|
|
stdenv.mkDerivation rec {
|
|
name = "now-cli-${version}";
|
|
version = "15.0.4";
|
|
|
|
# TODO: switch to building from source, if possible
|
|
src = fetchurl {
|
|
url = "https://github.com/zeit/now-cli/releases/download/${version}/now-linux.gz";
|
|
sha256 = "7d8fedccce402b3572834cb13a63b343ac2df9e6ad120937289ee88ce6e48d4c";
|
|
};
|
|
|
|
sourceRoot = ".";
|
|
unpackCmd = ''
|
|
gunzip -c $curSrc > now-linux
|
|
'';
|
|
|
|
buildPhase = ":";
|
|
|
|
installPhase = ''
|
|
mkdir $out
|
|
mkdir $out/bin
|
|
cp now-linux $out/bin/now
|
|
'';
|
|
|
|
# now is a node program packaged using zeit/pkg.
|
|
# thus, it contains hardcoded offsets.
|
|
# patchelf shifts these locations when it expands headers.
|
|
|
|
# this could probably be generalised into allowing any program packaged
|
|
# with zeit/pkg to be run on nixos.
|
|
|
|
preFixup = let
|
|
libPath = lib.makeLibraryPath [stdenv.cc.cc];
|
|
in ''
|
|
|
|
orig_size=$(stat --printf=%s $out/bin/now)
|
|
|
|
patchelf --set-interpreter "$(cat $NIX_CC/nix-support/dynamic-linker)" $out/bin/now
|
|
patchelf --set-rpath ${libPath} $out/bin/now
|
|
chmod +x $out/bin/now
|
|
|
|
new_size=$(stat --printf=%s $out/bin/now)
|
|
|
|
###### zeit-pkg fixing starts here.
|
|
# we're replacing plaintext js code that looks like
|
|
# PAYLOAD_POSITION = '1234 ' | 0
|
|
# [...]
|
|
# PRELUDE_POSITION = '1234 ' | 0
|
|
# ^-----20-chars-----^^------22-chars------^
|
|
# ^-- grep points here
|
|
#
|
|
# var_* are as described above
|
|
# shift_by seems to be safe so long as all patchelf adjustments occur
|
|
# before any locations pointed to by hardcoded offsets
|
|
|
|
var_skip=20
|
|
var_select=22
|
|
shift_by=$(expr $new_size - $orig_size)
|
|
|
|
function fix_offset {
|
|
# $1 = name of variable to adjust
|
|
location=$(grep -obUam1 "$1" $out/bin/now | cut -d: -f1)
|
|
location=$(expr $location + $var_skip)
|
|
|
|
value=$(dd if=$out/bin/now iflag=count_bytes,skip_bytes skip=$location \
|
|
bs=1 count=$var_select status=none)
|
|
value=$(expr $shift_by + $value)
|
|
|
|
echo -n $value | dd of=$out/bin/now bs=1 seek=$location conv=notrunc
|
|
}
|
|
|
|
fix_offset PAYLOAD_POSITION
|
|
fix_offset PRELUDE_POSITION
|
|
|
|
'';
|
|
dontStrip = true;
|
|
|
|
|
|
|
|
meta = with stdenv.lib; {
|
|
homepage = https://zeit.co/now;
|
|
description = "The Command Line Interface for Now - Global Serverless Deployments";
|
|
license = licenses.asl20;
|
|
platforms = platforms.linux;
|
|
maintainers = [ maintainers.bhall ];
|
|
};
|
|
}
|