From 0fe4bc24472de7f22cf088c273f5a7b6b9cb114e Mon Sep 17 00:00:00 2001
From: zjp <jiping_zhou@foxmail.com>
Date: Sat, 13 May 2023 13:47:21 +0800
Subject: [PATCH] eprintln init_logger failure (may need redir if it's flushed
 away)

and add a description on logging
---
 docs/config_file.md | 6 ++++++
 src/bin/main.rs     | 7 +++++--
 2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/docs/config_file.md b/docs/config_file.md
index d7db573..25498c0 100644
--- a/docs/config_file.md
+++ b/docs/config_file.md
@@ -29,3 +29,9 @@ Run the following command to generate a config file with the default parameters:
 ```sh
 navi info config-example > "$(navi info config-path)"
 ```
+
+### Logging
+
+The log file will be created under the same directory where the config locates.
+
+And you can use the `RUST_LOG` env to set the log level, e.g. `RUST_LOG=debug navi`.
diff --git a/src/bin/main.rs b/src/bin/main.rs
index 01f9ffb..fa12d64 100644
--- a/src/bin/main.rs
+++ b/src/bin/main.rs
@@ -24,8 +24,11 @@ impl FileAnIssue {
     }
 }
 
-fn main() -> Result<(), anyhow::Error> {
-    init_logger()?;
+fn main() -> anyhow::Result<()> {
+    if let Err(err) = init_logger() {
+        // may need redir stderr to a file to show this log initialization error
+        eprintln!("failed to initialize logging: {err:?}");
+    }
     navi::handle().map_err(|e| {
         error!("{e:?}");
         FileAnIssue::new(e).into()