core/pkgs/build-support/rust/sysroot/src.nix

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2024-05-02 00:46:19 +00:00
{
lib,
stdenv,
rustPlatform,
buildPackages,
originalCargoToml ? null,
}:
stdenv.mkDerivation {
name = "cargo-src";
preferLocalBuild = true;
unpackPhase = "true";
dontConfigure = true;
dontBuild = true;
installPhase =
''
export RUSTC_SRC=${rustPlatform.rustLibSrc.override { }}
''
+ lib.optionalString (originalCargoToml != null) ''
export ORIG_CARGO=${originalCargoToml}
''
+ ''
${buildPackages.python3.withPackages (ps: with ps; [ toml ])}/bin/python3 ${./cargo.py}
mkdir -p $out/src
echo '#![no_std]' > $out/src/lib.rs
cp Cargo.toml $out/Cargo.toml
cp ${./Cargo.lock} $out/Cargo.lock
'';
}