1 files changed, 12 insertions, 0 deletions

diff --git a/src/main_gui.cpp b/src/main_gui.cpp
index 05f5ecf..163d78e 100644
--- a/src/main_gui.cpp
+++ b/src/main_gui.cpp
@@ -111,6 +111,7 @@ static void PrintUsage()
     printf("  /help, -help, --help, /?\n");
     printf("  /datadir=PATH\n");
     printf("  /debug\n");
+    printf("  /debugrelay                (/debug plus per-message relay chatter and block dumps)\n");
     printf("  /maxdebugfilesize=N        (roll debug.log at N MB, default 1024; 0 = never)\n");
     printf("  /gen\n");
     printf("  /nogui or /daemon\n");
@@ -192,6 +193,17 @@ static void ParseStartupArguments(int argc, char* argv[])
     if (arg(argc,argv,"/debug") || arg(argc,argv,"-debug"))
         fDebug = true;
 
+    // /debugrelay -- everything /debug shows, plus the per-message firehose
+    // ("relay" and "nostrdiscovery" categories: sending: tx, Relaying wtx,
+    // raw CBlock dumps, per-peer discovery lines). That traffic was ~90% of
+    // a 13-hour production debug.log (issue #35), so plain /debug leaves it
+    // off; the message text itself is unchanged for anyone grepping it.
+    if (arg(argc,argv,"/debugrelay") || arg(argc,argv,"-debugrelay"))
+    {
+        fDebug = true;
+        fDebugRelay = true;
+    }
+
     // /maxdebugfilesize=N -- roll debug.log to debug.log.old once it passes
     // N MB, checked on each write. Default is 1024 (see util.cpp); 0 turns
     // the check off and leaves rotation entirely to logrotate.