nixpkgs/pkgs/development/compilers/rust/rustfmt.nix

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{ stdenv, rustPlatform, Security }:
rustPlatform.buildRustPackage rec {
name = "rustfmt-${version}";
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inherit (rustPlatform.rust.rustc) version src;
# the rust source tarball already has all the dependencies vendored, no need to fetch them again
cargoVendorDir = "vendor";
preBuild = "pushd src/tools/rustfmt";
preInstall = "popd";
buildInputs = stdenv.lib.optional stdenv.isDarwin Security;
# As of 1.0.0 and rustc 1.30 rustfmt requires a nightly compiler
RUSTC_BOOTSTRAP = 1;
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# we run tests in debug mode so tests look for a debug build of
# rustfmt. Anyway this adds nearly no compilation time.
preCheck = ''
cargo build
'';
meta = with stdenv.lib; {
description = "A tool for formatting Rust code according to style guidelines";
homepage = https://github.com/rust-lang-nursery/rustfmt;
license = with licenses; [ mit asl20 ];
maintainers = with maintainers; [ globin basvandijk ];
platforms = platforms.all;
};
}