graceful exit for empty config file

src/configuration/config_parser.rs

@@ -15,6 +15,7 @@ use serde::Deserialize;
 use std::fs::File;
 use std::io::prelude::*;
 use std::path::Path;
+use std::process;
 use std::{fs, path::PathBuf};
 use toml::Value;
 
@@ -86,10 +87,11 @@ pub fn set_up_configuration(
     }
 
     if uri.is_none() || token.is_none() {
-        panic!(
+        println!(
             "x1b[31mFATAL:x1b[0m No configuration parameters found in CLI while using an empty config file!\n
             Please enter valid configuration parameters in the configuration file or provide them via the CLI."
-        )
+        );
+        process::exit(1);
     }
 
     conf_data = ConfigData::read_config_file();

src/main.rs

@@ -47,6 +47,7 @@ fn main() {
     let config: ConfigData = match set_up_configuration(args.uri, args.token) {
         Ok(conf) => conf,
         Err(err) => {
+            // This behavior will change
             panic!("{}", err)
         }
     };