Fix "mv allows moving a directory into itself" (#2619)

* make sort-by fail gracefully if mismatched types are compared

* Added a test to check if sorted-by with invalid types exists gracefully

* Linter changes

* removed redundant pattern matching

* Changed the error message

* Added a comma after every argument

* Changed the test to accomodate the new err messages

* Err message for sort-by invalid types now shows the mismatched types

* Lints problems

* Changed unwrap to expect

* Added the -f flag to rm command

Now when you a use rm -f there will be no error message, even if the
file doesnt actually exist

* Lint problems

* Fixed the wrong line

* Removed println

* Spelling mistake

* Fix problems when you mv a file into itself

* Lint mistakes

* Remove unecessary filtering in most cases

crates/nu-cli/tests/commands/move_/mv.rs

@@ -257,6 +257,20 @@ fn errors_if_renaming_directory_to_an_existing_file() {
     })
 }
 
+#[test]
+fn errors_if_moving_to_itself() {
+    Playground::setup("mv_test_10_4", |dirs, sandbox| {
+        sandbox.mkdir("mydir").mkdir("mydir/mydir_2");
+
+        let actual = nu!(
+            cwd: dirs.test(),
+            "mv mydir mydir/mydir_2/"
+        );
+
+        assert!(actual.err.contains("cannot move to itself"));
+    })
+}
+
 #[test]
 fn does_not_error_on_relative_parent_path() {
     Playground::setup("mv_test_11", |dirs, sandbox| {
@@ -331,3 +345,17 @@ fn move_file_from_two_parents_up_using_multiple_dots_to_current_dir() {
         assert!(!original.exists());
     })
 }
+
+#[test]
+fn does_not_error_when_some_file_is_moving_into_itself() {
+    Playground::setup("mv_test_13", |dirs, sandbox| {
+        sandbox.mkdir("11").mkdir("12");
+
+        let original_dir = dirs.test().join("11");
+        let expected = dirs.test().join("12/11");
+        nu!(cwd: dirs.test(), "mv 1* 12");
+
+        assert!(!original_dir.exists());
+        assert!(expected.exists());
+    })
+}