[ref] conf: move load_keypairs out of load_conf

lib/core/conf/src/lib.rs

@@ -285,12 +285,7 @@ pub fn get_profile_path(profiles_path: &Option<PathBuf>, profile_name: &str) ->
 }
 
 /// Load configuration.
-pub fn load_conf(
-    profile_path: PathBuf,
-    keypairs_file_path: &Option<PathBuf>,
-) -> Result<(DuRsConf, DuniterKeyPairs), DursConfError> {
-    let keypairs = crate::keypairs::load_keypairs_from_file(&profile_path, keypairs_file_path)?;
-
+pub fn load_conf(profile_path: PathBuf) -> Result<DuRsConf, DursConfError> {
     // Load conf from file
     let conf_from_file =
         crate::file::load_conf_from_file(profile_path).map_err(DursConfError::FileErr)?;
@@ -302,7 +297,7 @@ pub fn load_conf(
     // Override global conf with env global user conf
     let conf = conf_from_file.override_global_conf(env_global_user_conf);
 
-    Ok((conf, keypairs))
+    Ok(conf)
 }
 
 /// Write new module conf

lib/core/core/src/lib.rs

@@ -239,9 +239,14 @@ impl DursCore<DuRsConf> {
         )?;
 
         // Load global conf
-        let (conf, keypairs) =
-            durs_conf::load_conf(profile_path.clone(), &durs_core_opts.keypairs_file)
+        let conf =
+            durs_conf::load_conf(profile_path.clone()).map_err(DursCoreError::LoadConfError)?;
+        let keypairs = durs_conf::keypairs::load_keypairs_from_file(
+            &profile_path,
+            &durs_core_opts.keypairs_file,
+        )
         .map_err(DursCoreError::LoadConfError)?;
+
         info!("Success to load global conf.");
 
         // Get currency name