Add ability to run smoke_Suite on x86-pre-flight-queue.

lib/cros_build_lib.py

 # Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """Common python commands used by various build scripts."""
 
+import inspect
+import os
 import subprocess
 import sys
 
 _STDOUT_IS_TTY = hasattr(sys.stdout, 'isatty') and sys.stdout.isatty()
 
+# TODO(sosa):  Move logging to logging module.
+
+def GetCallerName():
+  """Returns the name of the calling module with __main__."""
+  top_frame = inspect.stack()[-1][0]
+  return os.path.basename(top_frame.f_code.co_filename)
+
+
 def RunCommand(cmd, print_cmd=True, error_ok=False, error_message=None,
                exit_code=False, redirect_stdout=False, redirect_stderr=False,
                cwd=None, input=None, enter_chroot=False):
   """Runs a shell command.
 
   Keyword arguments:
     cmd - cmd to run.  Should be input to subprocess.POpen.  If a string,
       converted to an array using split().
     print_cmd -- prints the command before running it.
     error_ok -- does not raise an exception on error.
@@ skipping 15 matching lines @@
   output = ''
 
   # Modify defaults based on parameters.
   if redirect_stdout:  stdout = subprocess.PIPE
   if redirect_stderr:  stderr = subprocess.PIPE
   if input:  stdin = subprocess.PIPE
   if enter_chroot:  cmd = ['./enter_chroot.sh', '--'] + cmd
 
   # Print out the command before running.
   if print_cmd:
-    Info('RunCommand: %s' % ' '.join(cmd))
+    Info('PROGRAM(%s) -> RunCommand: %s in dir %s' %
+         (GetCallerName(), ' '.join(cmd), cwd))
 
   try:
     proc = subprocess.Popen(cmd, cwd=cwd, stdin=stdin,
                             stdout=stdout, stderr=stderr)
     (output, error) = proc.communicate(input)
     if exit_code:
       return proc.returncode
 
     if not error_ok and proc.returncode:
       raise Exception('Command "%s" failed.\n' % (' '.join(cmd)) +
                       (error_message or error or output or ''))
-  except Exception,e:
+  except Exception, e:
     if not error_ok:
       raise
     else:
       Warning(str(e))
 
   return output
 
 
 class Color(object):
   """Conditionally wraps text in ANSI color escape sequences."""
@@ skipping 48 matching lines @@
 
 
 def Info(message):
   """Emits a blue informational message and continues execution.
 
   Keyword arguments:
     message: The message to be emitted.
   """
   print >> sys.stderr, (
       Color(_STDOUT_IS_TTY).Color(Color.BLUE, '\nINFO: ' + message))