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