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commit_queue.py
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commit_queue.py
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#!/usr/bin/env python
# Copyright (c) 2011 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""Access the commit queue from the command line.
"""
__version__ = '0.1'
import functools
import logging
import optparse
import os
import sys
import urllib2
import breakpad # pylint: disable=W0611
import fix_encoding
import rietveld
def usage(more):
def hook(fn):
fn.func_usage_more = more
return fn
return hook
def need_issue(fn):
"""Post-parse args to create a Rietveld object."""
@functools.wraps(fn)
def hook(parser, args, *extra_args, **kwargs):
old_parse_args = parser.parse_args
def new_parse_args(args=None, values=None):
options, args = old_parse_args(args, values)
if not options.issue:
parser.error('Require --issue')
obj = rietveld.Rietveld(options.server, options.user, None)
return options, args, obj
parser.parse_args = new_parse_args
parser.add_option(
'-u', '--user',
metavar='U',
default=os.environ.get('EMAIL_ADDRESS', None),
help='Email address, default: %default')
parser.add_option(
'-i', '--issue',
metavar='I',
type='int',
help='Rietveld issue number')
parser.add_option(
'-s',
'--server',
metavar='S',
default='http://codereview.chromium.org',
help='Rietveld server, default: %default')
# Call the original function with the modified parser.
return fn(parser, args, *extra_args, **kwargs)
hook.func_usage_more = '[options]'
return hook
def set_commit(obj, issue, flag):
"""Sets the commit bit flag on an issue."""
try:
patchset = obj.get_issue_properties(issue, False)['patchsets'][-1]
print obj.set_flag(issue, patchset, 'commit', flag)
except urllib2.HTTPError, e:
if e.code == 404:
print >> sys.stderr, 'Issue %d doesn\'t exist.' % issue
elif e.code == 403:
print >> sys.stderr, 'Access denied to issue %d.' % issue
else:
raise
return 1
@need_issue
def CMDset(parser, args):
"""Sets the commit bit."""
options, args, obj = parser.parse_args(args)
if args:
parser.error('Unrecognized args: %s' % ' '.join(args))
return set_commit(obj, options.issue, '1')
@need_issue
def CMDclear(parser, args):
"""Clears the commit bit."""
options, args, obj = parser.parse_args(args)
if args:
parser.error('Unrecognized args: %s' % ' '.join(args))
return set_commit(obj, options.issue, '0')
###############################################################################
## Boilerplate code
class OptionParser(optparse.OptionParser):
"""An OptionParser instance with default options.
It should be then processed with gen_usage() before being used.
"""
def __init__(self, *args, **kwargs):
optparse.OptionParser.__init__(self, *args, **kwargs)
self.add_option(
'-v', '--verbose', action='count', default=0,
help='Use multiple times to increase logging level')
def parse_args(self, args=None, values=None):
options, args = optparse.OptionParser.parse_args(self, args, values)
levels = [logging.WARNING, logging.INFO, logging.DEBUG]
logging.basicConfig(
level=levels[min(len(levels) - 1, options.verbose)],
format='%(levelname)s %(filename)s(%(lineno)d): %(message)s')
return options, args
def format_description(self, _):
"""Removes description formatting."""
return self.description.rstrip() + '\n'
def Command(name):
return getattr(sys.modules[__name__], 'CMD' + name, None)
@usage('<command>')
def CMDhelp(parser, args):
"""Print list of commands or use 'help <command>'."""
# Strip out the help command description and replace it with the module
# docstring.
parser.description = sys.modules[__name__].__doc__
parser.description += '\nCommands are:\n' + '\n'.join(
' %-12s %s' % (
fn[3:], Command(fn[3:]).__doc__.split('\n', 1)[0].rstrip('.'))
for fn in dir(sys.modules[__name__]) if fn.startswith('CMD'))
_, args = parser.parse_args(args)
if len(args) == 1 and args[0] != 'help':
return main(args + ['--help'])
parser.print_help()
return 0
def gen_usage(parser, command):
"""Modifies an OptionParser object with the command's documentation.
The documentation is taken from the function's docstring.
"""
obj = Command(command)
more = getattr(obj, 'func_usage_more')
# OptParser.description prefer nicely non-formatted strings.
parser.description = obj.__doc__ + '\n'
parser.set_usage('usage: %%prog %s %s' % (command, more))
def main(args=None):
# Do it late so all commands are listed.
# pylint: disable=E1101
parser = OptionParser(version=__version__)
if args is None:
args = sys.argv[1:]
if args:
command = Command(args[0])
if command:
# "fix" the usage and the description now that we know the subcommand.
gen_usage(parser, args[0])
return command(parser, args[1:])
# Not a known command. Default to help.
gen_usage(parser, 'help')
return CMDhelp(parser, args)
if __name__ == "__main__":
fix_encoding.fix_encoding()
sys.exit(main())