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-rw-r--r--nixpkgs/pkgs/development/compilers/rust/cargo.nix3
-rw-r--r--nixpkgs/pkgs/development/compilers/rust/clippy.nix3
-rw-r--r--nixpkgs/pkgs/development/compilers/rust/rls/default.nix14
-rw-r--r--nixpkgs/pkgs/development/compilers/rust/rustfmt.nix9
4 files changed, 12 insertions, 17 deletions
diff --git a/nixpkgs/pkgs/development/compilers/rust/cargo.nix b/nixpkgs/pkgs/development/compilers/rust/cargo.nix
index 65614b9480e7..dfea7f6c8ef6 100644
--- a/nixpkgs/pkgs/development/compilers/rust/cargo.nix
+++ b/nixpkgs/pkgs/development/compilers/rust/cargo.nix
@@ -9,8 +9,7 @@ rustPlatform.buildRustPackage {
 
   # the rust source tarball already has all the dependencies vendored, no need to fetch them again
   cargoVendorDir = "vendor";
-  preBuild = "pushd src/tools/cargo";
-  postBuild = "popd";
+  buildAndTestSubdir = "src/tools/cargo";
 
   passthru.rustc = rustc;
 
diff --git a/nixpkgs/pkgs/development/compilers/rust/clippy.nix b/nixpkgs/pkgs/development/compilers/rust/clippy.nix
index 4857b587847e..0546ad9bac1a 100644
--- a/nixpkgs/pkgs/development/compilers/rust/clippy.nix
+++ b/nixpkgs/pkgs/development/compilers/rust/clippy.nix
@@ -5,8 +5,7 @@ rustPlatform.buildRustPackage {
 
   # the rust source tarball already has all the dependencies vendored, no need to fetch them again
   cargoVendorDir = "vendor";
-  preBuild = "pushd src/tools/clippy";
-  postBuild = "popd";
+  buildAndTestSubdir = "src/tools/clippy";
 
   # changes hash of vendor directory otherwise
   dontUpdateAutotoolsGnuConfigScripts = true;
diff --git a/nixpkgs/pkgs/development/compilers/rust/rls/default.nix b/nixpkgs/pkgs/development/compilers/rust/rls/default.nix
index 4cf507fbf5c7..63a3c96a8f92 100644
--- a/nixpkgs/pkgs/development/compilers/rust/rls/default.nix
+++ b/nixpkgs/pkgs/development/compilers/rust/rls/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchFromGitHub, rustPlatform
+{ stdenv, makeWrapper, fetchFromGitHub, rustPlatform
 , openssh, openssl, pkgconfig, cmake, zlib, curl, libiconv
 , CoreFoundation, Security }:
 
@@ -10,8 +10,9 @@ rustPlatform.buildRustPackage {
   dontUpdateAutotoolsGnuConfigScripts = true;
 
   cargoVendorDir = "vendor";
+  buildAndTestSubdir = "src/tools/rls";
+
   preBuild = ''
-    pushd src/tools/rls
     # client tests are flaky
     rm tests/client.rs
   '';
@@ -23,18 +24,21 @@ rustPlatform.buildRustPackage {
   CARGO_BUILD_RUSTFLAGS = if stdenv.isDarwin then "-C rpath" else null;
 
   nativeBuildInputs = [ pkgconfig cmake ];
-  buildInputs = [ openssh openssl curl zlib libiconv rustPlatform.rust.rustc.llvm ]
+  buildInputs = [ openssh openssl curl zlib libiconv makeWrapper rustPlatform.rust.rustc.llvm ]
     ++ (stdenv.lib.optionals stdenv.isDarwin [ CoreFoundation Security ]);
 
   doCheck = true;
 
-  preInstall = "popd";
-
   doInstallCheck = true;
   installCheckPhase = ''
     $out/bin/rls --version
   '';
 
+  RUST_SRC_PATH = rustPlatform.rustcSrc;
+  postInstall = ''
+    wrapProgram $out/bin/rls --set-default RUST_SRC_PATH ${rustPlatform.rustcSrc}
+  '';
+
   meta = with stdenv.lib; {
     description = "Rust Language Server - provides information about Rust programs to IDEs and other tools";
     homepage = "https://github.com/rust-lang/rls/";
diff --git a/nixpkgs/pkgs/development/compilers/rust/rustfmt.nix b/nixpkgs/pkgs/development/compilers/rust/rustfmt.nix
index f8ed0bce2e0d..66a18f40ad42 100644
--- a/nixpkgs/pkgs/development/compilers/rust/rustfmt.nix
+++ b/nixpkgs/pkgs/development/compilers/rust/rustfmt.nix
@@ -6,8 +6,7 @@ rustPlatform.buildRustPackage rec {
 
   # 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";
+  buildAndTestSubdir = "src/tools/rustfmt";
 
   # changes hash of vendor directory otherwise
   dontUpdateAutotoolsGnuConfigScripts = true;
@@ -17,12 +16,6 @@ rustPlatform.buildRustPackage rec {
   # As of 1.0.0 and rustc 1.30 rustfmt requires a nightly compiler
   RUSTC_BOOTSTRAP = 1;
 
-  # 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";