Rollup merge of #134679 - ChrisDenton:rm-readonly, r=Mark-Simulacrum

Windows: remove readonly files

When calling `remove_file`, we shouldn't fail to delete readonly files. As the test makes clear, this make the Windows behaviour consistent with other platforms. This also makes us internally consistent with `remove_dir_all`.

try-job: x86_64-msvc-ext1

1 files changed, 8 insertions, 0 deletions

diff --git a/library/std/tests/win_delete_self.rs b/library/std/tests/win_delete_self.rs
new file mode 100644
index 00000000000..1c3ce4d710c
--- /dev/null
+++ b/library/std/tests/win_delete_self.rs
@@ -0,0 +1,8 @@
+#![cfg(windows)]
+
+/// Attempting to delete a running binary should return an error on Windows.
+#[test]
+fn win_delete_self() {
+    let path = std::env::current_exe().unwrap();
+    assert!(std::fs::remove_file(path).is_err());
+}