#
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# Copyright 2008 Google Inc. All Rights Reserved.
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#
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"""Command line interface for autotest
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This module contains the generic CLI processing
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See topic_common.py for a High Level Design and Algorithm.
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This file figures out the topic and action from the 2 first arguments
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on the command line and imports the <topic> module.
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It then creates a <topic>_<action> object, and calls it parses),
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execute() and output() methods.
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"""
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__author__ = 'jmeurin@google.com (Jean-Marc Eurin)'
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import os, sys, re, traceback
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import common
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from autotest_lib.cli import topic_common
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from autotest_lib.client.common_lib import lsbrelease_utils
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from autotest_lib.server import utils
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def main():
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"""
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The generic syntax is:
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atest <topic> <action> <options>
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atest-<topic> <action> <options>
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atest --help
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"""
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_disallow_root_user_on_moblab()
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cli = os.path.basename(sys.argv[0])
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syntax_obj = topic_common.atest()
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# Normalize the various --help, -h and help to -h
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sys.argv = [re.sub('--help|help', '-h', arg) for arg in sys.argv]
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match = re.search('^atest-(\w+)$', cli)
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if match:
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topic = match.group(1)
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else:
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if len(sys.argv) > 1:
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topic = sys.argv.pop(1)
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else:
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syntax_obj.invalid_syntax('No topic argument')
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if topic == '-h':
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sys.argv.insert(1, '-h')
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syntax_obj.parse()
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# Import the topic specific file
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cli_dir = os.path.abspath(os.path.dirname(__file__))
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if not os.path.exists(os.path.join(cli_dir, '%s.py' % topic)):
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syntax_obj.invalid_syntax('Invalid topic %s' % topic)
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topic_module = common.setup_modules.import_module(topic,
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'autotest_lib.cli')
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# If we have a syntax error now, it should
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# refer to the topic class.
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topic_class = getattr(topic_module, topic)
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topic_obj = topic_class()
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if len(sys.argv) > 1:
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action = sys.argv.pop(1)
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if action == '-h':
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action = 'help'
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sys.argv.insert(1, '-h')
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else:
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topic_obj.invalid_syntax('No action argument')
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# Any backward compatibility changes?
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action = topic_obj.backward_compatibility(action, sys.argv)
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# Instantiate a topic object
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try:
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action_class = getattr(topic_module, topic + '_' + action)
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except AttributeError:
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topic_obj.invalid_syntax('Invalid action %s' % action)
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action_obj = action_class()
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action_obj.parse()
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try:
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try:
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results = action_obj.execute()
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except topic_common.CliError:
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pass
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except Exception, err:
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traceback.print_exc()
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action_obj.generic_error("Unexpected exception: %s" % err)
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else:
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try:
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action_obj.output(results)
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except Exception:
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traceback.print_exc()
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finally:
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return action_obj.show_all_failures()
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def _disallow_root_user_on_moblab():
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"""Running these tools as root interferes with moblab services"""
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if lsbrelease_utils.is_moblab():
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utils.verify_not_root_user()
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