crane/lib/downloadCargoPackage.nix

48 lines
832 B
Nix

{ pkgsBuildBuild
, urlForCargoPackage
}:
let
inherit (pkgsBuildBuild)
fetchurl
stdenv;
in
{ name
, version
, checksum
, ...
}@args:
let
pkgInfo = urlForCargoPackage args;
tarball = fetchurl (pkgInfo.fetchurlExtraArgs // {
inherit (pkgInfo) url;
name = "${name}-${version}";
sha256 = checksum;
});
in
stdenv.mkDerivation {
inherit version;
pname = "cargo-package-${name}";
dontConfigure = true;
dontBuild = true;
dontFixup = true;
unpackPhase = ''
runHook preUnpack
mkdir -p crate
tar -xzf ${tarball} -C crate --strip-components=1
runHook postUnpack
'';
sourceRoot = "./crate";
installPhase = ''
runHook preInstall
mkdir -p $out
cp -r -t $out .
echo '{"files":{}, "package":"${checksum}"}' > $out/.cargo-checksum.json
runHook postInstall
'';
}