Prepare CLI for move into mainline

packages/cli/src/plugin/interface/network.rs

@@ -0,0 +1,27 @@
+use std::{io::Cursor, path::PathBuf};
+
+use mlua::UserData;
+
+pub struct PluginNetwork;
+impl UserData for PluginNetwork {
+    fn add_methods<'lua, M: mlua::UserDataMethods<'lua, Self>>(methods: &mut M) {
+        methods.add_function("download_file", |_, args: (String, String)| {
+            let url = args.0;
+            let path = args.1;
+
+            let resp = reqwest::blocking::get(url);
+            if let Ok(resp) = resp {
+                let mut content = Cursor::new(resp.bytes().unwrap());
+                let file = std::fs::File::create(PathBuf::from(path));
+                if file.is_err() {
+                    return Ok(false);
+                }
+                let mut file = file.unwrap();
+                let res = std::io::copy(&mut content, &mut file);
+                return Ok(res.is_ok());
+            }
+
+            Ok(false)
+        });
+    }
+}