1 files changed, 70 insertions, 0 deletions
diff --git a/libbe/command/help.py b/libbe/command/help.py
new file mode 100644
index 0000000..9e6d1aa
--- /dev/null
+++ b/libbe/command/help.py
@@ -0,0 +1,70 @@
+# Copyright (C) 2006-2009 Aaron Bentley and Panometrics, Inc.
+#                         Gianluca Montecchi <gian@grys.it>
+#                         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=True, restrict_file_access=False,
+            dir="."):
+    """
+    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)