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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 re
import sys
from formatter import AbstractFormatter, DumbWriter
from color import Coloring
from command import PagedCommand, MirrorSafeCommand
class Help(PagedCommand, MirrorSafeCommand):
common = False
helpSummary = "Display detailed help on a command"
helpUsage = """
%prog [--all|command]
"""
helpDescription = """
Displays detailed usage information about a command.
"""
def _PrintAllCommands(self):
print 'usage: repo COMMAND [ARGS]'
print """
The complete list of recognized repo commands are:
"""
commandNames = self.commands.keys()
commandNames.sort()
maxlen = 0
for name in commandNames:
maxlen = max(maxlen, len(name))
fmt = ' %%-%ds %%s' % maxlen
for name in commandNames:
command = self.commands[name]
try:
summary = command.helpSummary.strip()
except AttributeError:
summary = ''
print fmt % (name, summary)
print """
See 'repo help <command>' for more information on a specific command.
"""
def _PrintCommonCommands(self):
print 'usage: repo COMMAND [ARGS]'
print """
The most commonly used repo commands are:
"""
commandNames = [name
for name in self.commands.keys()
if self.commands[name].common]
commandNames.sort()
maxlen = 0
for name in commandNames:
maxlen = max(maxlen, len(name))
fmt = ' %%-%ds %%s' % maxlen
for name in commandNames:
command = self.commands[name]
try:
summary = command.helpSummary.strip()
except AttributeError:
summary = ''
print fmt % (name, summary)
print """
See 'repo help <command>' for more information on a specific command.
See 'repo help --all' for a complete list of recognized commands.
"""
def _PrintCommandHelp(self, cmd):
class _Out(Coloring):
def __init__(self, gc):
Coloring.__init__(self, gc, 'help')
self.heading = self.printer('heading', attr='bold')
self.wrap = AbstractFormatter(DumbWriter())
def _PrintSection(self, heading, bodyAttr):
try:
body = getattr(cmd, bodyAttr)
except AttributeError:
return
if body == '' or body is None:
return
self.nl()
self.heading('%s', heading)
self.nl()
self.heading('%s', ''.ljust(len(heading), '-'))
self.nl()
me = 'repo %s' % cmd.NAME
body = body.strip()
body = body.replace('%prog', me)
asciidoc_hdr = re.compile(r'^\n?([^\n]{1,})\n([=~-]{2,})$')
for para in body.split("\n\n"):
if para.startswith(' '):
self.write('%s', para)
self.nl()
self.nl()
continue
m = asciidoc_hdr.match(para)
if m:
title = m.group(1)
type = m.group(2)
if type[0] in ('=', '-'):
p = self.heading
else:
def _p(fmt, *args):
self.write(' ')
self.heading(fmt, *args)
p = _p
p('%s', title)
self.nl()
p('%s', ''.ljust(len(title),type[0]))
self.nl()
continue
self.wrap.add_flowing_data(para)
self.wrap.end_paragraph(1)
self.wrap.end_paragraph(0)
out = _Out(self.manifest.globalConfig)
out._PrintSection('Summary', 'helpSummary')
cmd.OptionParser.print_help()
out._PrintSection('Description', 'helpDescription')
def _Options(self, p):
p.add_option('-a', '--all',
dest='show_all', action='store_true',
help='show the complete list of commands')
def Execute(self, opt, args):
if len(args) == 0:
if opt.show_all:
self._PrintAllCommands()
else:
self._PrintCommonCommands()
elif len(args) == 1:
name = args[0]
try:
cmd = self.commands[name]
except KeyError:
print >>sys.stderr, "repo: '%s' is not a repo command." % name
sys.exit(1)
cmd.manifest = self.manifest
self._PrintCommandHelp(cmd)
else:
self._PrintCommandHelp(self)
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