Remove SuCommandRunner

src/command_runner.rs

@@ -147,42 +147,6 @@ impl<U: AsRef<str>> CommandRunner for SetuidCommandRunner<U> {
   }
 }
 
-#[derive(Debug)]
-pub struct SuCommandRunner<'a, C>
-where
-  C: CommandRunner,
-{
-  command_runner: &'a C,
-  user_name: &'a str,
-}
-
-impl<'a, C> SuCommandRunner<'a, C>
-where
-  C: 'a + CommandRunner,
-{
-  pub fn new(user_name: &'a str, command_runner: &'a C) -> SuCommandRunner<'a, C> {
-    SuCommandRunner {
-      command_runner,
-      user_name,
-    }
-  }
-}
-
-// Su doesn't set XDG_RUNTIME_DIR
-// https://github.com/systemd/systemd/blob/master/src/login/pam_systemd.c#L439
-#[async_trait(?Send)]
-impl<'a, C> CommandRunner for SuCommandRunner<'a, C>
-where
-  C: 'a + CommandRunner,
-{
-  async fn run(&self, program: &str, args: &[&OsStr], input: &[u8]) -> IoResult<Output> {
-    let raw_new_args = [self.user_name, "-s", "/usr/bin/env", "--", program];
-    let mut new_args: Vec<&OsStr> = raw_new_args.iter().map(AsRef::as_ref).collect();
-    new_args.extend_from_slice(args);
-    self.command_runner.run("su", &new_args, input).await
-  }
-}
-
 #[cfg(test)]
 mod test {
   use crate::args;