more improvements

src/config.rs

@@ -1,7 +1,10 @@
+use lazy_static::lazy_static;
 use num_enum::{IntoPrimitive, TryFromPrimitive};
 use satrs_mib::res_code::ResultU16Info;
 use satrs_mib::resultcode;
+use std::env;
 use std::net::Ipv4Addr;
+use std::path::{Path, PathBuf};
 
 pub const STOP_FILE_NAME: &str = "stop-experiment";
 pub const HOME_FOLER_EXPERIMENT: &str = "/home/exp278";
@@ -26,6 +29,19 @@ pub enum GroupId {
     Action = 3,
 }
 
+lazy_static! {
+    pub static ref HOME_PATH: PathBuf = {
+        let home_path_default = env::var("HOME").expect("HOME env variable not set");
+        let mut home_path = PathBuf::new();
+        home_path.push(if Path::new(HOME_FOLER_EXPERIMENT).exists() {
+            HOME_FOLER_EXPERIMENT
+        } else {
+            &home_path_default
+        });
+        home_path
+    };
+}
+
 pub mod tmtc_err {
     use super::*;
     use satrs::res_code::ResultU16;