print App logs to stdout

src/devices.ml

@@ -16,7 +16,9 @@ let db_connection : (env, Caqti_miou.connection) Vif.Device.device =
       match Pg.preflight conn with
       | Error err ->
           Fmt.failwith "Database preflight failure: %a." Caqti_error.pp err
-      | Ok () -> conn)
+      | Ok () ->
+          Logs.debug (fun m -> m "database connection initialized.@.");
+          conn)
 
 module Secmod_signkey = struct
   (* TODO

src/mte.ml

@@ -36,7 +36,7 @@ let () =
   let cfg =
     let port = Config.Exchange.port in
     let sockaddr = Unix.(ADDR_INET (inet_addr_loopback, port)) in
-    Vif.config ~reporter:Logs.nop_reporter sockaddr
+    Vif.config ~reporter:Util.Log_reporter.reporter sockaddr
   in
   Miou_unix.run @@ fun () ->
   Caqti_miou.Switch.run @@ fun caqti_switch ->
@@ -49,5 +49,5 @@ let () =
   in
   let middlewares = Vif.Middlewares.[] in
   Logs.info (fun m ->
-      m ~tags:(Util.Log_reporter.detail "~~!") "Starting MTE server");
+      m ~tags:(Util.Log_reporter.detail "...") "Starting MTE server");
   Vif.run ~cfg ~devices ~middlewares routes env

src/util.ml

@@ -122,7 +122,7 @@ module Log_reporter = struct
   let detail s = Logs.Tag.(empty |> add detail_tag s)
   let time_anchor = Ptime_clock.now () |> Ptime.to_span
 
-  let log_level_color = function
+  let color_of_log_level = function
     | Logs.App -> `White
     | Error -> `Red
     | Warning -> `Yellow
@@ -133,7 +133,7 @@ module Log_reporter = struct
     let open Fmt in
     let pp_timestamp = styled `Faint (styled (`Fg `White) (fmt "%04.02f")) in
     let pp_header ppf v =
-      let color = fst v |> log_level_color in
+      let color = color_of_log_level (fst v) in
       let pp = styled (`Fg color) Logs.pp_header in
       pf ppf "%a" pp v
     in
@@ -143,7 +143,11 @@ module Log_reporter = struct
     in
     let pp_detail = option (styled `Green (fmt " (%s)")) in
     let report src lvl ~over k msgf =
-      let ppf = stderr in
+      let ppf =
+        match lvl with
+        | Logs.App -> stdout
+        | Error | Warning | Info | Debug -> stderr
+      in
       let k _ppf = over (); k () in
       let with_detail h tags k user_fmt =
         let detail = Option.bind tags (Logs.Tag.find detail_tag) in
@@ -167,6 +171,5 @@ module Log_reporter = struct
     Logs.set_level ~all:false (Some Logs.Debug);
     Logs.Src.set_level Logs.default (Some Logs.Debug);
     Logs_threaded.enable ();
-    Printexc.record_backtrace true;
     ()
 end