ksud: Add userspace cli to load module

userspace/ksud/src/utils.rs

@@ -0,0 +1,24 @@
+use std::path::Path;
+
+use anyhow::{Result, ensure};
+use subprocess::Exec;
+
+pub fn mount_image(src: &str, target: &str) -> Result<()> {
+    let result = Exec::shell(format!("mount {} {}", src, target)).join()?;
+    ensure!(result.success(), "mount: {} -> {} failed.", src, target);
+    Ok(())
+}
+
+pub fn umount_dir(src: &str) -> Result<()> {
+    let result = Exec::shell(format!("umount {}", src)).join()?;
+    ensure!(result.success(), "umount: {} failed", src);
+    Ok(())
+}
+
+pub fn ensure_clean_dir(dir: &str) -> Result<()> {
+    let path = Path::new(dir);
+    if path.exists() {
+        std::fs::remove_dir_all(path)?;
+    }
+    Ok(std::fs::create_dir_all(path)?)
+}