add install and remove packages to Backend trait

src/cmd.rs

@@ -1,11 +1,9 @@
-use std::os::unix::process::CommandExt;
 use std::path::PathBuf;
 use std::process::{Command, ExitStatus};
 
 use anyhow::{anyhow, Result};
 
 use crate::env::get_editor;
-use crate::Package;
 
 pub fn run_edit_command(files: &[PathBuf]) -> Result<ExitStatus> {
     let mut cmd = Command::new(get_editor()?);
@@ -14,21 +12,3 @@ pub fn run_edit_command(files: &[PathBuf]) -> Result<ExitStatus> {
     }
     cmd.status().map_err(|e| anyhow!(e))
 }
-
-pub fn run_install_command(diff: Vec<Package>) {
-    let mut cmd = Command::new("paru");
-    cmd.arg("-S");
-    for p in diff {
-        cmd.arg(format!("{p}"));
-    }
-    cmd.exec();
-}
-
-pub fn run_remove_command(unmanaged: Vec<Package>) {
-    let mut cmd = Command::new("paru");
-    cmd.arg("-Rsn");
-    for p in unmanaged {
-        cmd.arg(format!("{p}"));
-    }
-    cmd.exec();
-}