deb: retrieve .deb artifacts

sbuild options: unshare, build directory

context: retrieve files

src/context/local.rs

@@ -21,7 +21,21 @@ impl ContextDriver for LocalDriver {
     }
 
     fn prepare_work_dir(&self) -> io::Result<String> {
-        Ok(".".to_string())
+        // TODO: Fix that, we should not always use '..' as work directory locally
+        Ok("..".to_string())
+    }
+
+    fn retrieve_path(&self, _src: &Path, _dest: &Path) -> io::Result<()> {
+        Ok(())
+    }
+
+    fn list_files(&self, path: &Path) -> io::Result<Vec<PathBuf>> {
+        let mut entries = Vec::new();
+        for entry in std::fs::read_dir(path)? {
+            let entry = entry?;
+            entries.push(entry.path());
+        }
+        Ok(entries)
     }
 }