Tarball conversion

1 files changed, 59 insertions, 0 deletions

diff --git a/bzrlib/debug.py b/bzrlib/debug.py
new file mode 100644
index 0000000..cca8956
--- /dev/null
+++ b/bzrlib/debug.py
@@ -0,0 +1,59 @@
+# Copyright (C) 2005, 2006, 2009 Canonical Ltd
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+
+"""Set of flags that enable different debug behaviour.
+
+These are set with eg ``-Dlock`` on the bzr command line or in
+~/.bazaar/bazaar.conf debug_flags.
+
+See `bzr help debug-flags` or `bzrlib/help_topics/en/debug-flags.txt`
+for a list of the available options.
+"""
+
+from __future__ import absolute_import
+
+debug_flags = set()
+
+
+def set_debug_flags_from_config():
+    """Turn on debug flags based on the global configuration"""
+
+    from bzrlib import config
+
+    c = config.GlobalStack()
+    for f in c.get('debug_flags'):
+        debug_flags.add(f)
+
+
+def set_trace():
+    """Pdb using original stdin and stdout.
+
+    When debugging blackbox tests, sys.stdin and sys.stdout are captured for
+    test purposes and cannot be used for interactive debugging. This class uses
+    the origianl stdin/stdout to allow such use.
+
+    Instead of doing:
+
+       import pdb; pdb.set_trace()
+
+    you can do:
+
+       from bzrlib import debug; debug.set_trace()
+    """
+    import pdb
+    import sys
+    pdb.Pdb(stdin=sys.__stdin__, stdout=sys.__stdout__
+            ).set_trace(sys._getframe().f_back)