Initial Contribution
diff --git a/subcmds/help.py b/subcmds/help.py
new file mode 100644
index 0000000..6e0238a
--- /dev/null
+++ b/subcmds/help.py
@@ -0,0 +1,147 @@
+#
+# 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 sys
+from formatter import AbstractFormatter, DumbWriter
+
+from color import Coloring
+from command import PagedCommand
+
+class Help(PagedCommand):
+ 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.
+"""
+
+ 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
+
+ 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)
+
+ for para in body.split("\n\n"):
+ if para.startswith(' '):
+ self.write('%s', para)
+ self.nl()
+ self.nl()
+ else:
+ self.wrap.add_flowing_data(para)
+ self.wrap.end_paragraph(1)
+ self.wrap.end_paragraph(0)
+
+ out = _Out(self.manifest.globalConfig)
+ cmd.OptionParser.print_help()
+ out._PrintSection('Summary', 'helpSummary')
+ 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)
+
+ self._PrintCommandHelp(cmd)
+
+ else:
+ self._PrintCommandHelp(self)