[Feature #16972] Add mode: option to Pathname#mkpath

Author: nobu

lib/pathname.rb

@@ -581,8 +581,8 @@ class Pathname    # * FileUtils *
   # exist.
   #
   # See FileUtils.mkpath and FileUtils.mkdir_p
-  def mkpath
-    FileUtils.mkpath(@path)
+  def mkpath(mode: nil)
+    FileUtils.mkpath(@path, mode: mode)
     nil
   end
 

test/pathname/test_pathname.rb

@@ -1429,10 +1429,22 @@ def test_find
     }
   end
 
+  def assert_mode(val, mask, path, mesg = nil)
+    st = File.stat(path)
+    assert_equal(val.to_s(8), (st.mode & mask).to_s(8), st.inspect)
+  end
+
   def test_mkpath
     with_tmpchdir('rubytest-pathname') {|dir|
       Pathname("a/b/c/d").mkpath
       assert_file.directory?("a/b/c/d")
+      unless File.stat(dir).world_readable?
+        # mktmpdir should make unreadable
+        Pathname("x/y/z").mkpath(mode: 0775)
+        assert_mode(0775, 0777, "x")
+        assert_mode(0775, 0777, "x/y")
+        assert_mode(0775, 0777, "x/y/z")
+      end
     }
   end