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#
# Copyright (C) 2008 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import os
import optparse
import sys
from error import NoSuchProjectError
class Command(object):
"""Base class for any command line action in repo.
"""
common = False
manifest = None
_optparse = None
def WantPager(self, opt):
return False
@property
def OptionParser(self):
if self._optparse is None:
try:
me = 'repo %s' % self.NAME
usage = self.helpUsage.strip().replace('%prog', me)
except AttributeError:
usage = 'repo %s' % self.NAME
self._optparse = optparse.OptionParser(usage = usage)
self._Options(self._optparse)
return self._optparse
def _Options(self, p):
"""Initialize the option parser.
"""
def Usage(self):
"""Display usage and terminate.
"""
self.OptionParser.print_usage()
sys.exit(1)
def Execute(self, opt, args):
"""Perform the action, after option parsing is complete.
"""
raise NotImplementedError
def GetProjects(self, args, missing_ok=False):
"""A list of projects that match the arguments.
"""
all = self.manifest.projects
result = []
if not args:
for project in all.values():
if missing_ok or project.Exists:
result.append(project)
else:
by_path = None
for arg in args:
project = all.get(arg)
if not project:
path = os.path.abspath(arg)
if not by_path:
by_path = dict()
for p in all.values():
by_path[p.worktree] = p
if os.path.exists(path):
while path \
and path != '/' \
and path != self.manifest.topdir:
try:
project = by_path[path]
break
except KeyError:
path = os.path.dirname(path)
else:
try:
project = by_path[path]
except KeyError:
pass
if not project:
raise NoSuchProjectError(arg)
if not missing_ok and not project.Exists:
raise NoSuchProjectError(arg)
result.append(project)
def _getpath(x):
return x.relpath
result.sort(key=_getpath)
return result
class InteractiveCommand(Command):
"""Command which requires user interaction on the tty and
must not run within a pager, even if the user asks to.
"""
def WantPager(self, opt):
return False
class PagedCommand(Command):
"""Command which defaults to output in a pager, as its
display tends to be larger than one screen full.
"""
def WantPager(self, opt):
return True
class MirrorSafeCommand(object):
"""Command permits itself to run within a mirror,
and does not require a working directory.
"""
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