[tor-commits] [chutney/master] Give chutney a CHUTNEY_DEBUG option

[teor@xxxxxxxxxxxxxx]

commit 876933cb3173b0cc14848189b7dac41c7905560f
Author: Nick Mathewson <nickm@xxxxxxxxxxxxxx>
Date:   Tue May 2 19:24:56 2017 -0400

    Give chutney a CHUTNEY_DEBUG option
    
    test-network.sh gets a --debug flag, and they both get documented in
    the README.  debug_flag is no longer recommended.
---
 README                          | 1 +
 lib/chutney/Traffic.py          | 4 ++--
 scripts/chutney_tests/verify.py | 4 +---
 tools/test-network.sh           | 5 ++++-
 4 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/README b/README
index d184947..8030842 100644
--- a/README
+++ b/README
@@ -57,6 +57,7 @@ Warning Options:
   --only-warnings    CHUTNEY_WARNINGS_ONLY=true
 
 Expert Options:
+  --debug            CHUTNEY_DEBUG=true
   --coverage         USE_COVERAGE_BINARY=true
   --net-dir          CHUTNEY_DATA_DIR
   --dry-run          NETWORK_DRY_RUN=true
diff --git a/lib/chutney/Traffic.py b/lib/chutney/Traffic.py
index b5f75fd..a22d16b 100644
--- a/lib/chutney/Traffic.py
+++ b/lib/chutney/Traffic.py
@@ -28,11 +28,11 @@ import select
 import struct
 import errno
 import time
+import os
 
 # Set debug_flag=True in order to debug this program or to get hints
 # about what's going wrong in your system.
-debug_flag = False
-
+debug_flag = os.environ.get("CHUTNEY_DEBUG", "") != ""
 
 def debug(s):
     "Print a debug message on stdout if debug_flag is True."
diff --git a/scripts/chutney_tests/verify.py b/scripts/chutney_tests/verify.py
index b887ee7..98beb74 100644
--- a/scripts/chutney_tests/verify.py
+++ b/scripts/chutney_tests/verify.py
@@ -19,9 +19,7 @@ def run_test(network):
             time.sleep(5)
     print("Transmission: %s" % ("Success" if status else "Failure"))
     if not status:
-        # TODO: allow the debug flag to be passed as an argument to
-        # src/test/test-network.sh and chutney
-        print("Set 'debug_flag = True' in Traffic.py to diagnose.")
+        print("Set CHUTNEY_DEBUG to diagnose.")
     return status
 
 
diff --git a/tools/test-network.sh b/tools/test-network.sh
index 9da20b1..7ea0fd4 100755
--- a/tools/test-network.sh
+++ b/tools/test-network.sh
@@ -35,7 +35,10 @@ do
       # the name or path of a tor-gencert binary
       export CHUTNEY_TOR_GENCERT="$2"
       shift
-    ;;
+      ;;
+    --debug)
+      export CHUTEY_DEBUG="yes"
+      ;;
     --flavor|--flavour|--network-flavor|--network-flavour)
       export NETWORK_FLAVOUR="$2"
       shift

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