Use --warn as default log level for tedge cli

Signed-off-by: Didier Wenzek <didier.wenzek@free.fr>

Author: didier-wenzek

crates/common/tedge_config/src/cli.rs

@@ -43,6 +43,15 @@ pub struct LogConfigArgs {
     pub log_level: Option<tracing::Level>,
 }
 
+impl LogConfigArgs {
+    pub fn with_default_level(self, log_level: tracing::Level) -> Self {
+        Self {
+            log_level: self.log_level.or(Some(log_level)),
+            ..self
+        }
+    }
+}
+
 fn log_level_completions() -> Vec<CompletionCandidate> {
     use tracing::Level as L;
     let options = [L::TRACE, L::DEBUG, L::INFO, L::WARN, L::ERROR];

crates/core/tedge/src/main.rs

@@ -73,7 +73,7 @@ async fn main() -> anyhow::Result<()> {
 
             log_init(
                 "tedge",
-                &common.log_args,
+                &common.log_args.with_default_level(tracing::Level::WARN),
                 &tedge_config_location.tedge_config_root_path,
             )?;