KCC: split and shift samba.graph_utils -> samba.kcc.{graph_utils,debug}

The debug module contains debug functions and colours.

Graph_utils keeps the DOT file generation and graph verification code.

Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>

python/samba/kcc/debug.py

@@ -0,0 +1,67 @@
+# Debug utilities for samba_kcc
+#
+# Copyright (C) Andrew Bartlett 2015
+#
+# Although Andrew Bartlett owns the copyright, the actual work was
+# performed by Douglas Bagnall and Garming Sam.
+#
+# 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 3 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, see <http://www.gnu.org/licenses/>.
+
+import sys
+import logging
+from functools import partial
+import traceback
+
+logger = logging.getLogger("samba_kcc")
+logger.addHandler(logging.StreamHandler(sys.stdout))
+DEBUG = logger.debug
+
+
+#colours for prettier logs
+C_NORMAL = "\033[00m"
+DARK_RED = "\033[00;31m"
+RED = "\033[01;31m"
+DARK_GREEN = "\033[00;32m"
+GREEN = "\033[01;32m"
+YELLOW = "\033[01;33m"
+DARK_YELLOW = "\033[00;33m"
+DARK_BLUE = "\033[00;34m"
+BLUE = "\033[01;34m"
+PURPLE = "\033[00;35m"
+MAGENTA = "\033[01;35m"
+DARK_CYAN = "\033[00;36m"
+CYAN = "\033[01;36m"
+GREY = "\033[00;37m"
+WHITE = "\033[01;37m"
+REV_RED = "\033[01;41m"
+
+
+def _color_debug(*args, **kwargs):
+    DEBUG('%s%s%s' % (kwargs['color'], args[0], C_NORMAL), *args[1:])
+
+_globals = globals()
+for _color in ('DARK_RED', 'RED', 'DARK_GREEN', 'GREEN', 'YELLOW',
+               'DARK_YELLOW', 'DARK_BLUE', 'BLUE', 'PURPLE', 'MAGENTA',
+               'DARK_CYAN', 'CYAN', 'GREY', 'WHITE', 'REV_RED'):
+    _globals['DEBUG_' + _color] = partial(_color_debug, color=_globals[_color])
+
+
+def DEBUG_FN(msg=''):
+    filename, lineno, function, text = traceback.extract_stack(None, 2)[0]
+    DEBUG("%s%s:%s%s %s%s()%s '%s'" % (CYAN, filename, BLUE, lineno,
+                                       CYAN, function, C_NORMAL, msg))
+
+
+def null_debug(*args, **kwargs):
+    pass