run-make-support: re-export recursive_remove

This facade is like other `run_make_support::fs` APIs that
panic-on-failure but includes the path that the operation was called on
in the panic message.

Author: jieyouxu

src/tools/run-make-support/src/fs.rs

@@ -1,3 +1,4 @@
+use std::fs::FileType;
 use std::io;
 use std::path::{Path, PathBuf};
 
@@ -6,12 +7,15 @@ use std::path::{Path, PathBuf};
 pub fn copy_symlink(src: impl AsRef<Path>, dst: impl AsRef<Path>) {
     let src = src.as_ref();
     let dst = dst.as_ref();
-    if let Err(e) = copy_symlink_raw(src, dst) {
+    let metadata = symlink_metadata(src);
+    if let Err(e) = copy_symlink_raw(metadata.file_type(), src, dst) {
         panic!("failed to copy symlink from `{}` to `{}`: {e}", src.display(), dst.display(),);
     }
 }
 
-fn copy_symlink_raw(src: impl AsRef<Path>, dst: impl AsRef<Path>) -> io::Result<()> {
+fn copy_symlink_raw(ty: FileType, src: impl AsRef<Path>, dst: impl AsRef<Path>) -> io::Result<()> {
+    #![allow(unused_variables)]
+
     // Traverse symlink once to find path of target entity.
     let target_path = std::fs::read_link(src)?;
 
@@ -54,7 +58,7 @@ pub fn copy_dir_all(src: impl AsRef<Path>, dst: impl AsRef<Path>) {
             if ty.is_dir() {
                 copy_dir_all_inner(entry.path(), dst.join(entry.file_name()))?;
             } else if ty.is_symlink() {
-                copy_symlink_raw(entry.path(), dst.join(entry.file_name()))?;
+                copy_symlink_raw(ty, entry.path(), dst.join(entry.file_name()))?;
             } else {
                 std::fs::copy(entry.path(), dst.join(entry.file_name()))?;
             }
@@ -80,6 +84,21 @@ pub fn read_dir_entries<P: AsRef<Path>, F: FnMut(&Path)>(dir: P, mut callback: F
     }
 }
 
+/// A wrapper around [`build_helper::fs::recursive_remove`] which includes the file path in the
+/// panic message.
+///
+/// This handles removing symlinks on Windows (e.g. symlink-to-file will be removed via
+/// [`std::fs::remove_file`] while symlink-to-dir will be removed via [`std::fs::remove_dir`]).
+#[track_caller]
+pub fn recursive_remove<P: AsRef<Path>>(path: P) {
+    if let Err(e) = build_helper::fs::recursive_remove(path.as_ref()) {
+        panic!(
+            "failed to recursive remove filesystem entities at `{}`: {e}",
+            path.as_ref().display()
+        );
+    }
+}
+
 /// A wrapper around [`std::fs::remove_file`] which includes the file path in the panic message.
 #[track_caller]
 pub fn remove_file<P: AsRef<Path>>(path: P) {