From a852b290caeeef7b29481bb9371a5c497b140662 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Joakim=20Frosteg=C3=A5rd?= <joakim.frostegard@gmail.com>
Date: Tue, 5 Jul 2022 11:15:53 +0200
Subject: [PATCH] Add cli flag for printing parsed config

---
 TODO.md                   |  3 ---
 aquatic_common/src/cli.rs | 11 ++++++++++-
 2 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/TODO.md b/TODO.md
index fa3d7e9..9c296d7 100644
--- a/TODO.md
+++ b/TODO.md
@@ -43,9 +43,6 @@
 
 ## Low priority
 
-* config
-  * add flag to print parsed config when starting
-
 * aquatic_udp
   * what poll event capacity is actually needed?
   * stagger connection cleaning intervals?
diff --git a/aquatic_common/src/cli.rs b/aquatic_common/src/cli.rs
index 4763092..6c9a2e0 100644
--- a/aquatic_common/src/cli.rs
+++ b/aquatic_common/src/cli.rs
@@ -26,7 +26,7 @@ impl Default for LogLevel {
     }
 }
 
-pub trait Config: Default + TomlConfig + DeserializeOwned {
+pub trait Config: Default + TomlConfig + DeserializeOwned + std::fmt::Debug {
     fn get_log_level(&self) -> Option<LogLevel> {
         None
     }
@@ -36,6 +36,7 @@ pub trait Config: Default + TomlConfig + DeserializeOwned {
 pub struct Options {
     config_file: Option<String>,
     print_config: bool,
+    print_parsed_config: bool,
     print_version: bool,
 }
 
@@ -59,6 +60,9 @@ impl Options {
                     "-p" | "--print-config" => {
                         options.print_config = true;
                     }
+                    "-P" => {
+                        options.print_parsed_config = true;
+                    }
                     "-v" | "--version" => {
                         options.print_version = true;
                     }
@@ -148,6 +152,10 @@ where
             start_logger(log_level)?;
         }
 
+        if options.print_parsed_config {
+            println!("Running with configuration: {:#?}", config);
+        }
+
         app_fn(config)
     }
 }
@@ -162,6 +170,7 @@ where
     println!("    -c, --config-file     Load config from this path");
     println!("    -h, --help            Print this help message");
     println!("    -p, --print-config    Print default config");
+    println!("    -P                    Print parsed config");
     println!("    -v, --version         Print version information");
 
     if let Some(error) = opt_error {