rework zig fmt to avoid unnecessary realpath() calls

 * add `std.fs.Dir.stat`
 * zig fmt checks for sym link loops using inodes instead of using
   realpath

1 files changed, 11 insertions, 0 deletions

diff --git a/lib/std/fs.zig b/lib/std/fs.zig
index fa782b14c0..dfd58de500 100644
--- a/lib/std/fs.zig
+++ b/lib/std/fs.zig
@@ -1545,6 +1545,17 @@ pub const Dir = struct {
             return AtomicFile.init(dest_path, options.mode, self, false);
         }
     }
+
+    pub const Stat = File.Stat;
+    pub const StatError = File.StatError;
+
+    pub fn stat(self: Dir) StatError!Stat {
+        const file: File = .{
+            .handle = self.fd,
+            .capable_io_mode = .blocking,
+        };
+        return file.stat();
+    }
 };
 
 /// Returns an handle to the current working directory. It is not opened with iteration capability.