exp: cross #3

src/context/unshare.rs

@@ -78,12 +78,20 @@ impl ContextDriver for UnshareDriver {
         ))
     }
 
-    fn list_files(&self, _path: &Path) -> io::Result<Vec<PathBuf>> {
-        // TODO: Implement chroot file listing logic
-        Err(io::Error::new(
-            io::ErrorKind::Unsupported,
-            "list_files not yet implemented for chroot",
-        ))
+    fn list_files(&self, path: &Path) -> io::Result<Vec<PathBuf>> {
+        let host_path = Path::new(&self.path).join(path.to_string_lossy().trim_start_matches('/'));
+        let host_entries = self.parent().list_files(&host_path)?;
+
+        let mut entries = Vec::new();
+        let prefix = Path::new(&self.path);
+        for entry in host_entries {
+            if let Ok(rel_path) = entry.strip_prefix(prefix) {
+                entries.push(Path::new("/").join(rel_path));
+            } else {
+                entries.push(entry);
+            }
+        }
+        Ok(entries)
     }
 
     fn run(
@@ -164,7 +172,10 @@ impl UnshareDriver {
         let mut cmd = self.parent().command("sudo");
         cmd.args(env.iter().map(|(k, v)| format!("{k}={v}")));
 
-        cmd.arg("unshare").arg("-R").arg(&self.path);
+        cmd.arg("unshare")
+            .arg("--mount-proc")
+            .arg("-R")
+            .arg(&self.path);
 
         if let Some(dir) = cwd {
             cmd.arg("-w").arg(dir);