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+# Copyright (C) 2006-2009 Aaron Bentley and Panometrics, Inc.
+# Thomas Gerigk <tgerigk@gmx.de>
+# W. Trevor King <wking@drexel.edu>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+"""Print help for given subcommand"""
+from libbe import cmdutil, utility
+__desc__ = __doc__
+
+def execute(args, manipulate_encodings=False):
+ """
+ Print help of specified command (the manipulate_encodings argument
+ is ignored).
+
+ >>> execute(["help"])
+ Usage: be help [COMMAND]
+ <BLANKLINE>
+ Options:
+ -h, --help Print a help message
+ --complete Print a list of available completions
+ <BLANKLINE>
+ Print help for specified command or list of all commands.
+ <BLANKLINE>
+ """
+ parser = get_parser()
+ options, args = parser.parse_args(args)
+ complete(options, args, parser)
+ if len(args) > 1:
+ raise cmdutil.UsageError("Too many arguments.")
+ if len(args) == 0:
+ print cmdutil.help()
+ else:
+ try:
+ print cmdutil.help(args[0])
+ except AttributeError:
+ print "No help available"
+
+def get_parser():
+ parser = cmdutil.CmdOptionParser("be help [COMMAND]")
+ return parser
+
+longhelp="""
+Print help for specified command or list of all commands.
+"""
+
+def help():
+ return get_parser().help_str() + longhelp
+
+def complete(options, args, parser):
+ for option, value in cmdutil.option_value_pairs(options, parser):
+ if value == "--complete":
+ # no argument-options at the moment, so this is future-proofing
+ raise cmdutil.GetCompletions()
+ if "--complete" in args:
+ cmds = [command for command,module in cmdutil.iter_commands()]
+ raise cmdutil.GetCompletions(cmds)