src: cli, main: Add and use settings-file cli argument

src/cli/manager.rs

@@ -18,6 +18,14 @@ struct Args {
     )]
     mavlink: String,
 
+    /// Sets the settings file path
+    #[arg(
+        long,
+        value_name = "./settings.json",
+        default_value = "~/.config/mavlink-camera-manager/settings.json"
+    )]
+    settings_file: String,
+
     /// Default settings to be used for different vehicles or environments.
     #[arg(long, value_name = "NAME")]
     default_settings: Option<custom::CustomEnvironment>,
@@ -147,6 +155,11 @@ pub fn log_path() -> String {
         .expect("Clap arg \"log-path\" should always be \"Some(_)\" because of the default value.")
 }
 
+// Return the desired settings file
+pub fn settings_file() -> String {
+    MANAGER.clap_matches.settings_file.clone()
+}
+
 // Return the desired address for the REST API
 pub fn server_address() -> String {
     MANAGER.clap_matches.rest_server.clone()

src/main.rs

@@ -25,7 +25,7 @@ async fn main() -> Result<(), std::io::Error> {
     // Logger should start before everything else to register any log information
     logger::manager::init();
     // Settings should start before everybody else to ensure that the CLI are stored
-    settings::manager::init(None);
+    settings::manager::init(Some(&cli::manager::settings_file()));
 
     mavlink::manager::Manager::init();