From a28e3d28aa03f83257122152914abbdbd9bae81c Mon Sep 17 00:00:00 2001
From: kennytm <kennytm@gmail.com>
Date: Sun, 29 Jul 2018 03:36:18 +0800
Subject: [PATCH] Copy the test_data/ RLS tests into a writable directory.

See rust-lang-nursery/rls#966 for details.
---
 src/bootstrap/test.rs | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/bootstrap/test.rs b/src/bootstrap/test.rs
index 7c69197885c..24a1dbbde66 100644
--- a/src/bootstrap/test.rs
+++ b/src/bootstrap/test.rs
@@ -290,6 +290,13 @@ impl Step for Rls {
                                                  "src/tools/rls",
                                                  SourceType::Submodule);
 
+        // Copy `src/tools/rls/test_data` to a writable drive.
+        let test_workspace_path = builder.out.join("rls-test-data");
+        let test_data_path = test_workspace_path.join("test_data");
+        builder.create_dir(&test_data_path);
+        builder.cp_r(&builder.src.join("src/tools/rls/test_data"), &test_data_path);
+        cargo.env("RLS_TEST_WORKSPACE_DIR", test_workspace_path);
+
         builder.add_rustc_lib_path(compiler, &mut cargo);
 
         if try_run(builder, &mut cargo) {