add copy function

src/firmware/xbuilder.rs

@@ -1,12 +1,14 @@
 // Simplify build
 // -
 
-use std::fs::File;
+use std::{fs::File, path::PathBuf};
 
 use chrono::{DateTime, Utc};
 use rayon::iter::{IntoParallelIterator, ParallelBridge, ParallelIterator};
 use tar::Archive;
 
+use uu_cp::copy;
+
 use crate::recipe_functions::common::{self, EnumAsValue};
 
 pub type DefaultResult = Result<(), Box<dyn std::error::Error>>;
@@ -348,4 +350,39 @@ impl XBuilder {
 
         result
     }
+
+    /// Used in build process
+    /// BS -> `cp <src> <dest>`
+    pub fn copy(src: PathBuf, dest: PathBuf) -> DefaultResult {
+        let options = uu_cp::Options {
+            attributes: uu_cp::Attributes::NONE,
+            attributes_only: false,
+            copy_contents: false,
+            cli_dereference: false,
+            copy_mode: uu_cp::CopyMode::Copy,
+            dereference: true,
+            one_file_system: false,
+            parents: false,
+            update: uu_cp::UpdateMode::All,
+            debug: false,
+            verbose: false,
+            strip_trailing_slashes: false,
+            reflink_mode: uu_cp::ReflinkMode::Auto,
+            sparse_mode: uu_cp::SparseMode::Auto,
+            backup: uu_cp::BackupMode::None,
+            backup_suffix: "~".to_owned(),
+            no_target_dir: false,
+            overwrite: uu_cp::OverwriteMode::Clobber(uu_cp::ClobberMode::Standard),
+            recursive: true, // !
+            target_dir: None,
+            progress_bar: true,
+            set_selinux_context: false,
+            context: None,
+        };
+
+        match copy(&[src], dest.as_path(), &options) {
+            Ok(_) => Ok(()),
+            Err(e) => Err(format!("{}", e.to_string()).into()),
+        }
+    }
 }

src/models/mod.rs

@@ -1,4 +1,2 @@
 pub mod recipe;
 pub mod recipev2;
-// pub mod ui;
-// pub mod x2engine;