From b643665354bd12fa7a03e8b558c4fdf5a315c536 Mon Sep 17 00:00:00 2001
From: pteromys <pteromys@gmail.com>
Date: Fri, 31 Dec 2021 15:44:44 -0500
Subject: [PATCH] Add env_logger to ease troubleshooting.

Apparently I had an empty /etc/resolv.conf on one host due to systemd
growing pains, which I only discovered by adding the logger and seeing

> [2021-12-31T20:22:01Z WARN  trust_dns_resolver::system_conf::unix] no nameservers found in config

Without env_logger, the only output I had was an unhelpful

> could not connect to xmpp server

and changing die() to unwrap() only narrowed it down slightly to

> Connection(Resolve(ResolveError { kind: Message("No connections available") }))

One can set the environment variable RUST_LOG=debug for more verbosity.
Under the default setting it seems to be silent if nothing goes wrong.
---
 Cargo.toml  | 2 +-
 src/main.rs | 2 ++
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/Cargo.toml b/Cargo.toml
index e4c1833..efa0bc5 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -32,4 +32,4 @@ tokio-tls = { package = "tokio-native-tls", version = "0.3" }
 xmpp-parsers = "0.18"
 die = "0.2.0"
 anyhow = "1.0"
-
+env_logger = "0.9"
diff --git a/src/main.rs b/src/main.rs
index 659e0c1..f8d73b9 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -58,6 +58,8 @@ struct MyOptions {
 
 #[tokio::main]
 async fn main() {
+    env_logger::init();
+
     let args: Vec<String> = args().collect();
 
     // Remember to skip the first argument. That's the program name.