Moved @rules_rust//tools/runfiles to @rules_rust//rust/runfiles (#3294)

This is to conform to where other rules place their runfiles libraries.
E.g.
-
[@rules_cc//cc/runfiles](https://github.com/bazelbuild/rules_cc/tree/283d572e0e1f4fe864f1f94db2c2cd27cb1dcc6e/cc/runfiles)
-
[@rules_java//java/runfiles](https://github.com/bazelbuild/rules_java/tree/3d757492427c10c73e48cbd0aa0623f12bfb769a/java/runfiles)
-
[@rules_python//python/runfiles](https://github.com/bazelbuild/rules_python/tree/fa882817a7a69ae1e6bc3a63530ce158b64d2efd/python/runfiles)
-
[@rules_shell//shell/runfiles](https://github.com/bazelbuild/rules_shell/tree/8120a5186fd67f6248245ba28f2f76c899a83c07/shell/runfiles)

Author: UebelAndre

.bazelci/presubmit.yml

@@ -72,7 +72,7 @@ default_windows_no_runfiles_targets: &default_windows_no_runfiles_targets
   - "-//test/test_env:test_run"
   - "-//test/unit/pipelined_compilation/..."
   - "-//test/unit/rustdoc/..."
-  - "-//tools/runfiles/..."
+  - "-//rust/runfiles/..."
   # Runfiles used by the test only.
   - "-//test/empty_suite:deps_test"
 crate_universe_vendor_example_targets: &crate_universe_vendor_example_targets
@@ -293,7 +293,7 @@ tasks:
       - "--enable_bzlmod"
     build_targets:
       - "//crate_universe:cargo_bazel_bin"
-      - "//tools/runfiles"
+      - "//rust/runfiles"
       - "//util/import"
   ubuntu2004_clang:
     name: With Clang

crate_universe/BUILD.bazel

@@ -110,7 +110,7 @@ rust_test(
         "RUSTC": "$(rootpath @rules_rust//rust/toolchain:current_rustc_files)",
     },
     deps = [
-        "@rules_rust//tools/runfiles",
+        "@rules_rust//rust/runfiles",
     ] + all_crate_deps(
         normal_dev = True,
     ),
@@ -138,7 +138,7 @@ rust_test(
     tags = ["requires-network"],
     deps = [
         ":cargo_bazel",
-        "@rules_rust//tools/runfiles",
+        "@rules_rust//rust/runfiles",
     ] + all_crate_deps(
         normal = True,
     ),

examples/bindgen_toolchain/MODULE.bazel

@@ -1,14 +1,21 @@
 module(name = "bindgen_toolchain_example")
 
 bazel_dep(name = "rules_rust_bindgen")
-local_path_override(module_name = "rules_rust_bindgen", path = "../../extensions/bindgen")
+local_path_override(
+    module_name = "rules_rust_bindgen",
+    path = "../../extensions/bindgen",
+)
 
 bazel_dep(name = "bazel_skylib", version = "1.7.1")
 bazel_dep(name = "rules_cc", version = "0.0.17")
 bazel_dep(name = "rules_rust")
-local_path_override(module_name = "rules_rust", path = "../..")
+local_path_override(
+    module_name = "rules_rust",
+    path = "../..",
+)
 
 bazel_dep(name = "toolchains_llvm", version = "1.3.0")
+
 llvm = use_extension("@toolchains_llvm//toolchain/extensions:llvm.bzl", "llvm")
 llvm.toolchain(llvm_version = "17.0.6")
 use_repo(llvm, "llvm_toolchain_llvm")

examples/sys/basic/BUILD.bazel

@@ -32,6 +32,6 @@ rust_test(
     edition = "2021",
     rustc_env = {"HELLO_SYS_RLOCATIONPATH": "$(rlocationpath :hello_sys)"},
     deps = [
-        "@rules_rust//tools/runfiles",
+        "@rules_rust//rust/runfiles",
     ],
 )

extensions/bindgen/MODULE.bazel

@@ -24,7 +24,10 @@ use_repo(
     "rules_rust_bindgen_deps__env_logger-0.10.2",
 )
 
-register_toolchains("//:default_bindgen_toolchain", dev_dependency = True)
+register_toolchains(
+    "//:default_bindgen_toolchain",
+    dev_dependency = True,
+)
 
 bazel_dep(name = "rules_testing", version = "0.7.0", dev_dependency = True)
 bazel_dep(name = "bazel_ci_rules", version = "1.0.0", dev_dependency = True)

extensions/mdbook/private/BUILD.bazel

@@ -15,8 +15,8 @@ rust_binary(
     edition = "2021",
     visibility = ["//visibility:public"],
     deps = [
+        "@rules_rust//rust/runfiles",
         "@rules_rust//util/action_args",
-        "@rules_rust//tools/runfiles",
     ],
 )
 

extensions/mdbook/test/generated_srcs/BUILD.bazel

@@ -31,5 +31,5 @@ rust_test(
     data = [":generated_srcs"],
     edition = "2021",
     rustc_env = {"MDBOOK_OUTPUT_RLOCATIONPATH": "$(rlocationpath :generated_srcs)"},
-    deps = ["@rules_rust//tools/runfiles"],
+    deps = ["@rules_rust//rust/runfiles"],
 )

rust/private/rustdoc/BUILD.bazel

@@ -7,6 +7,6 @@ rust_binary(
     srcs = ["rustdoc_test_writer.rs"],
     edition = "2018",
     deps = [
-        "//tools/runfiles",
+        "//rust/runfiles",
     ],
 )

rust/runfiles/BUILD.bazel

@@ -0,0 +1,24 @@
+load(
+    "//rust:defs.bzl",
+    "rust_doc",
+    "rust_library",
+    "rust_test",
+)
+
+rust_library(
+    name = "runfiles",
+    srcs = ["runfiles.rs"],
+    edition = "2018",
+    visibility = ["//visibility:public"],
+)
+
+rust_test(
+    name = "runfiles_test",
+    crate = ":runfiles",
+    data = ["data/sample.txt"],
+)
+
+rust_doc(
+    name = "runfiles_doc",
+    crate = ":runfiles",
+)

tools/runfiles/data/sample.txt renamed to rust/runfiles/data/sample.txt

@@ -8,7 +8,7 @@
 //!       name = "my_binary",
 //!       ...
 //!       data = ["//path/to/my/data.txt"],
-//!       deps = ["@rules_rust//tools/runfiles"],
+//!       deps = ["@rules_rust//rust/runfiles"],
 //!   )
 //! ```
 //!
@@ -351,8 +351,8 @@ mod test {
         let r = Runfiles::create().unwrap();
 
         let d = rlocation!(r, "rules_rust").unwrap();
-        let f = rlocation!(r, "rules_rust/tools/runfiles/data/sample.txt").unwrap();
-        assert_eq!(d.join("tools/runfiles/data/sample.txt"), f);
+        let f = rlocation!(r, "rules_rust/rust/runfiles/data/sample.txt").unwrap();
+        assert_eq!(d.join("rust/runfiles/data/sample.txt"), f);
 
         let mut f = File::open(f).unwrap();
 
@@ -373,8 +373,8 @@ mod test {
         env::remove_var(MANIFEST_FILE_ENV_VAR);
         let r = Runfiles::create().unwrap();
 
-        let mut f = File::open(rlocation!(r, "rules_rust/tools/runfiles/data/sample.txt").unwrap())
-            .unwrap();
+        let mut f =
+            File::open(rlocation!(r, "rules_rust/rust/runfiles/data/sample.txt").unwrap()).unwrap();
 
         let mut buffer = String::new();
         f.read_to_string(&mut buffer).unwrap();
@@ -399,8 +399,8 @@ mod test {
 
         let r = Runfiles::create().unwrap();
 
-        let mut f = File::open(rlocation!(r, "rules_rust/tools/runfiles/data/sample.txt").unwrap())
-            .unwrap();
+        let mut f =
+            File::open(rlocation!(r, "rules_rust/rust/runfiles/data/sample.txt").unwrap()).unwrap();
 
         let mut buffer = String::new();
         f.read_to_string(&mut buffer).unwrap();

tools/runfiles/runfiles.rs renamed to rust/runfiles/runfiles.rs

@@ -24,7 +24,7 @@ def bzl_ext_version_test(name, module_bazel, **kwargs):
             "MODULE_BAZEL": "$(rlocationpath {})".format(module_bazel),
         },
         deps = [
-            Label("//tools/runfiles"),
+            Label("//rust/runfiles"),
         ],
         **kwargs
     )

test/bzl_version/bzl_ext_version_test.bzl

@@ -24,7 +24,7 @@ def bzl_version_test(name, module_bazel, **kwargs):
             "VERSION": VERSION,
         },
         deps = [
-            Label("//tools/runfiles"),
+            Label("//rust/runfiles"),
         ],
         **kwargs
     )

test/bzl_version/bzl_version_test.bzl

@@ -5,5 +5,5 @@ rust_library(
     srcs = ["lib.rs"],
     data = ["@aliased_c//:MODULE.bazel"],
     visibility = ["//visibility:public"],
-    deps = ["@rules_rust//tools/runfiles"],
+    deps = ["@rules_rust//rust/runfiles"],
 )

test/bzlmod_repo_mapping/module_b/BUILD.bazel

@@ -168,5 +168,5 @@ rust_test(
         "FAKE_RUSTC_RLOCATIONPATH": "$(rlocationpath :fake_rustc)",
         "PROCESS_WRAPPER_RLOCATIONPATH": "$(rlocationpath //util/process_wrapper)",
     },
-    deps = ["//tools/runfiles"],
+    deps = ["//rust/runfiles"],
 )

test/process_wrapper/BUILD.bazel

@@ -6,7 +6,7 @@ rust_test(
     srcs = ["bootstrap_process_wrapper_test.rs"],
     data = ["//util/process_wrapper/private:process_wrapper.sh"],
     edition = "2021",
-    deps = ["//tools/runfiles"],
+    deps = ["//rust/runfiles"],
 )
 
 process_wrapper_bootstrap_test_suite(name = "process_wrapper_bootstrap_test_suite")

test/process_wrapper_bootstrap/BUILD.bazel

@@ -11,7 +11,7 @@ rust_library(
     ],
     data = ["greeting.txt"],
     edition = "2018",
-    deps = ["//tools/runfiles"],
+    deps = ["//rust/runfiles"],
 )
 
 rust_binary(

test/rust/BUILD.bazel

@@ -1,24 +1,5 @@
-load(
-    "//rust:defs.bzl",
-    "rust_doc",
-    "rust_library",
-    "rust_test",
-)
-
-rust_library(
+alias(
     name = "runfiles",
-    srcs = ["runfiles.rs"],
-    edition = "2018",
+    actual = "//rust/runfiles",
     visibility = ["//visibility:public"],
 )
-
-rust_test(
-    name = "runfiles_test",
-    crate = ":runfiles",
-    data = ["data/sample.txt"],
-)
-
-rust_doc(
-    name = "runfiles_doc",
-    crate = ":runfiles",
-)

tools/runfiles/BUILD.bazel

@@ -31,7 +31,7 @@ rust_library(
     ],
     edition = "2018",
     deps = [
-        "//tools/runfiles",
+        "//rust/runfiles",
         "//tools/rust_analyzer/3rdparty/crates:anyhow",
         "//tools/rust_analyzer/3rdparty/crates:log",
         "//tools/rust_analyzer/3rdparty/crates:serde",

tools/rust_analyzer/BUILD.bazel

@@ -28,7 +28,7 @@ rust_library(
         "RUSTFMT_CONFIG": "$(rlocationpath //rust/settings:rustfmt.toml)",
     },
     deps = [
-        "//tools/runfiles",
+        "//rust/runfiles",
     ],
 )
 
@@ -72,7 +72,7 @@ rust_binary(
     visibility = ["//visibility:public"],
     deps = [
         ":rustfmt_lib",
-        "//tools/runfiles",
+        "//rust/runfiles",
     ],
 )
 

tools/rustfmt/BUILD.bazel

@@ -26,7 +26,7 @@ all_tools = [target for target in tools.values()]
         toolchains = ["@rules_rust//rust/toolchain:current_rust_toolchain"],
         visibility = ["//visibility:public"],
         deps = [
-            "//tools/runfiles",
+            "//rust/runfiles",
         ],
     )
     for (tool_name, target) in tools.items()