Replace println!()s with logging macros

src/inbox.rs

@@ -1,3 +1,4 @@
+use tracing::warn;
 use plume_common::activity_pub::{
     inbox::FromId,
     request::Digest,
@@ -41,7 +42,7 @@ pub fn handle_incoming(
                 }
             })
             .map_err(|_| {
-                println!(
+                warn!(
                     "Rejected invalid activity supposedly from {}, with headers {:?}",
                     actor.username, headers.0
                 );
@@ -58,7 +59,7 @@ pub fn handle_incoming(
     Ok(match inbox(&rockets, act) {
         Ok(_) => String::new(),
         Err(e) => {
-            println!("Shared inbox error: {:?}", e);
+            warn!("Shared inbox error: {:?}", e);
             format!("Error: {:?}", e)
         }
     })

src/main.rs

@@ -13,6 +13,7 @@ extern crate validator_derive;
 use chrono::Utc;
 use clap::App;
 use diesel::r2d2::ConnectionManager;
+use tracing::warn;
 use plume_models::{
     db_conn::{DbPool, PragmaForeignKey},
     instance::Instance,
@@ -114,7 +115,7 @@ Then try to restart Plume.
                 .expect("main: error on backing up search index directory for recreating");
             if UnmanagedSearcher::create(&CONFIG.search_index, &CONFIG.search_tokenizers).is_ok() {
                 if fs::remove_dir_all(backup_path).is_err() {
-                    eprintln!(
+                    warn!(
                         "error on removing backup directory: {}. it remains",
                         backup_path.display()
                     );
@@ -173,8 +174,8 @@ Then try to restart Plume
 
     let mail = mail::init();
     if mail.is_none() && CONFIG.rocket.as_ref().unwrap().environment.is_prod() {
-        println!("Warning: the email server is not configured (or not completely).");
-        println!("Please refer to the documentation to see how to configure it.");
+        warn!("Warning: the email server is not configured (or not completely).");
+        warn!("Please refer to the documentation to see how to configure it.");
     }
 
     let rocket = rocket

src/routes/errors.rs

@@ -1,4 +1,5 @@
 use crate::template_utils::{IntoContext, Ructe};
+use tracing::warn;
 use plume_models::{Error, PlumeRocket};
 use rocket::{
     response::{self, Responder},
@@ -49,7 +50,7 @@ pub fn server_error(req: &Request<'_>) -> Ructe {
 #[post("/csrf-violation?<target>")]
 pub fn csrf_violation(target: Option<String>, rockets: PlumeRocket) -> Ructe {
     if let Some(uri) = target {
-        eprintln!("Csrf violation while accessing \"{}\"", uri)
+        warn!("Csrf violation while accessing \"{}\"", uri)
     }
     render!(errors::csrf(&rockets.to_context()))
 }

src/routes/session.rs

@@ -1,5 +1,6 @@
 use crate::routes::RespondOrRedirect;
 use lettre::Transport;
+use tracing::warn;
 use rocket::http::ext::IntoOwned;
 use rocket::{
     http::{uri::Uri, Cookie, Cookies, SameSite},
@@ -155,7 +156,7 @@ pub fn password_reset_request(
         ) {
             if let Some(ref mut mail) = *mail.lock().unwrap() {
                 mail.send(message.into())
-                    .map_err(|_| eprintln!("Couldn't send password reset email"))
+                    .map_err(|_| warn!("Couldn't send password reset email"))
                     .ok();
             }
         }

src/routes/user.rs

@@ -3,6 +3,7 @@ use activitypub::{
     collection::{OrderedCollection, OrderedCollectionPage},
 };
 use diesel::SaveChangesDsl;
+use tracing::{info, warn};
 use rocket::{
     http::{ContentType, Cookies},
     request::LenientForm,
@@ -67,9 +68,9 @@ pub fn details(
                     Ok(article) => {
                         Post::from_activity(&fetch_rockets, article)
                             .expect("Article from remote user couldn't be saved");
-                        println!("Fetched article from remote user");
+                        info!("Fetched article from remote user");
                     }
-                    Err(e) => println!("Error while fetching articles in background: {:?}", e),
+                    Err(e) => warn!("Error while fetching articles in background: {:?}", e),
                 }
             }
         });