Deduplicate input to ctx.expand_location (bazelbuild#1118)

Works around bazelbuild/bazel#14681
cfredric · Feb 16, 2022 · a0f678e · a0f678e
1 parent f9ef71c
commit a0f678e
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/rust/private/rustc.bzl b/rust/private/rustc.bzl
@@ -628,7 +628,9 @@ def construct_arguments(
     rustc_flags.add_all(rust_std_paths, before_each = "-L", format_each = "%s")
     rustc_flags.add_all(rust_flags)
 
-    data_paths = getattr(attr, "data", []) + getattr(attr, "compile_data", [])
+    # Deduplicate data paths due to https://github.com/bazelbuild/bazel/issues/14681
+    data_paths = depset(direct = getattr(attr, "data", []) + getattr(attr, "compile_data", [])).to_list()
+
     rustc_flags.add_all(
         expand_list_element_locations(
             ctx,