[tor-commits] [tor/master] Log warning messages _before_ exiting because of earlier dcfg failure

[asn at torproject.org]

commit a8ca464cee14ad8d0782f626c7f36216dba2e400
Author: Nick Mathewson <nickm at torproject.org>
Date:   Thu Mar 14 15:22:19 2019 -0400

    Log warning messages _before_ exiting because of earlier dcfg failure
    
    This helps diagnostics.
---
 src/lib/pubsub/pubsub_build.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/lib/pubsub/pubsub_build.c b/src/lib/pubsub/pubsub_build.c
index 64cdcc1d5..1dc20f51f 100644
--- a/src/lib/pubsub/pubsub_build.c
+++ b/src/lib/pubsub/pubsub_build.c
@@ -281,11 +281,14 @@ pubsub_builder_finalize(pubsub_builder_t *builder,
   dispatch_t *dispatcher = NULL;
   tor_assert_nonfatal(builder->n_connectors == 0);
 
-  if (builder->n_errors)
+  if (pubsub_builder_check(builder) < 0)
     goto err;
 
-  if (pubsub_builder_check(builder) < 0)
+  if (builder->n_errors) {
+    log_warn(LD_GENERAL, "At least one error occurred previously when "
+             "configuring the dispatcher.");
     goto err;
+  }
 
   dispatcher = dispatch_new(builder->cfg);