feat: add Prepare::with_shell_disallow_manual_argument_splitting().

That way it's also possible to forcefully turn off manual argument splitting.

Author: Byron

gix-command/src/lib.rs

@@ -136,6 +136,12 @@ mod prepare {
             self.with_shell()
         }
 
+        /// Use a shell, but prohibit splitting arguments by hand even if this could be safely done without a shell.
+        pub fn with_shell_disallow_manual_argument_splitting(mut self) -> Self {
+            self.allow_manual_arg_splitting = false;
+            self.with_shell()
+        }
+
         /// Configure the process to use `stdio` for _stdin.
         pub fn stdin(mut self, stdio: Stdio) -> Self {
             self.stdin = stdio;

gix-command/tests/command.rs

@@ -322,6 +322,14 @@ mod prepare {
         );
     }
 
+    #[test]
+    fn single_and_complex_arguments_without_auto_split() {
+        let cmd = std::process::Command::from(
+            gix_command::prepare("ls --foo=\"a b\"").with_shell_disallow_manual_argument_splitting(),
+        );
+        assert_eq!(format!("{cmd:?}"), quoted(&[SH, "-c", r#"ls --foo=\"a b\""#, "--"]));
+    }
+
     #[test]
     fn single_and_complex_arguments_will_not_auto_split_on_special_characters() {
         let cmd =