- added support for environment specified log file using variable

  UWOBO_LOG_FILE

diff --git a/helm/uwobo/uwobo.ml b/helm/uwobo/uwobo.ml
index 6b18f8bdd14d4295caf62a216c8a9509f5776fd2..a88f9484fc4b4bf1647a5b03b086efbe6d1ade03 100644 (file)
--- a/helm/uwobo/uwobo.ml
+++ b/helm/uwobo/uwobo.ml
@@ -30,19 +30,22 @@ open Printf;;
 open Uwobo_common;;
 
  (* debugging settings *)
-let debug = false;;
-let debug_level = `Notice;;
-let debug_print s = if debug then prerr_endline s;;
-Http_common.debug := false;;
-let logfile = Some "uwobo.log";;  (* relative to execution dir *)
-let logfile_perm = 0o640;;
+let debug = false ;;
+let debug_level = `Notice ;;
+let debug_print s = if debug then prerr_endline s ;;
+Http_common.debug := false ;;
 
   (* other settings *)
-let daemon_name = "UWOBO OCaml";;
-let default_port = 58080;;
-let port_env_var = "UWOBO_PORT";;
-let default_media_type = "text/html";;
-let default_encoding = "utf8";;
+let daemon_name = "UWOBO OCaml" ;;
+let default_log_file = "uwobo.log" ;; (* relative to execution dir *)
+let default_port = 58080 ;;
+let port_env_var = "UWOBO_PORT" ;;
+let default_media_type = "text/html" ;;
+let default_encoding = "utf8" ;;
+let logfile =
+  Some (try Sys.getenv "UWOBO_LOG_FILE" with Not_found -> default_log_file)
+;;
+let logfile_perm = 0o640 ;;
 let port =
   try
     int_of_string (Sys.getenv port_env_var)
@@ -231,8 +234,11 @@ let main () =
     (* (1) system logger *)
   let logger_outchan =
     match logfile with
-    | None -> stderr
+    | None ->
+        debug_print "Logging to standard error";
+        stderr
     | Some f ->
+        debug_print (sprintf "Logging to file %s" f);
         open_out_gen [Open_wronly; Open_append; Open_creat] logfile_perm f
   in
   let syslogger =