1
# Copyright (C) 2004, 2005 by Canonical Ltd
1
# Copyright (C) 2004, 2005, 2006 Canonical Ltd
3
3
# This program is free software; you can redistribute it and/or modify
4
4
# it under the terms of the GNU General Public License as published by
5
5
# the Free Software Foundation; either version 2 of the License, or
6
6
# (at your option) any later version.
8
8
# This program is distributed in the hope that it will be useful,
9
9
# but WITHOUT ANY WARRANTY; without even the implied warranty of
10
10
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11
11
# GNU General Public License for more details.
13
13
# You should have received a copy of the GNU General Public License
14
14
# along with this program; if not, write to the Free Software
15
15
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22
22
# TODO: `help commands --all` should show hidden commands
25
"""Bazaar-NG -- a free distributed version-control tool
28
WARNING: This is an unstable development version.
33
bzr init makes this branch versioned
34
bzr branch make a copy of another branch
36
bzr add make files or directories versioned
37
bzr ignore ignore a file or pattern
38
bzr mv move or rename a versioned file
40
bzr status summarize changes in working copy
41
bzr diff show detailed diffs
43
bzr merge pull in changes from another branch
46
bzr log show history of changes
47
bzr check validate storage
49
Use e.g. 'bzr help init' for more details, or
50
'bzr help commands' for all commands.
57
def help(topic=None, outfile = None):
33
def help(topic=None, outfile=None):
34
"""Write the help for the specific topic to outfile"""
59
36
outfile = sys.stdout
61
outfile.write(global_help)
62
elif topic == 'commands':
63
help_commands(outfile = outfile)
41
if topic in help_topics.topic_registry:
42
txt = help_topics.topic_registry.get_detail(topic)
65
help_on_command(topic, outfile = outfile)
45
help_on_command(topic, outfile=outfile)
68
48
def command_usage(cmd_object):
70
def print_command_plugin(cmd_object, outfile, format):
71
"""Print the plugin that provides a command object, if any.
73
If the cmd_object is provided by a plugin, prints the plugin name to
74
outfile using the provided format string.
76
plugin_name = cmd_object.plugin_name()
77
if plugin_name is not None:
78
out_str = '(From plugin "%s")' % plugin_name
79
outfile.write(format % out_str)
90
82
def help_on_command(cmdname, outfile=None):
91
83
from bzrlib.commands import get_cmd_object
93
85
cmdname = str(cmdname)
96
88
outfile = sys.stdout
98
90
cmd_object = get_cmd_object(cmdname)
100
92
doc = cmd_object.help()
102
94
raise NotImplementedError("sorry, no detailed help yet for %r" % cmdname)
104
print >>outfile, 'usage:', command_usage(cmd_object)
96
print >>outfile, 'usage:', command_usage(cmd_object)
106
98
if cmd_object.aliases:
107
99
print >>outfile, 'aliases:',
104
print_command_plugin(cmd_object, outfile, '%s\n\n')
112
106
outfile.write(doc)
113
107
if doc[-1] != '\n':
114
108
outfile.write('\n')
116
help_on_options(cmd_object.takes_options, outfile=None)
119
def help_on_options(options, outfile=None):
120
from bzrlib.commands import SHORT_OPTIONS
109
help_on_command_options(cmd_object, outfile)
112
def help_on_command_options(cmd, outfile=None):
113
from bzrlib.option import Option, get_optparser
126
115
outfile = sys.stdout
128
outfile.write('\noptions:\n')
131
for shortname, longname in SHORT_OPTIONS.items():
133
l += ', -' + shortname
135
outfile.write(l + '\n')
116
options = cmd.options()
118
outfile.write(get_optparser(options).format_option_help())
138
121
def help_commands(outfile=None):
139
122
"""List all commands"""
125
outfile.write(_help_commands_to_text('commands'))
128
def _help_commands_to_text(topic):
129
"""Generate the help text for the list of commands"""
140
130
from bzrlib.commands import (builtin_command_names,
141
131
plugin_command_names,
147
names = set() # to eliminate duplicates
148
names.update(builtin_command_names())
134
if topic == 'hidden-commands':
138
names = set(builtin_command_names()) # to eliminate duplicates
149
139
names.update(plugin_command_names())
153
for cmd_name in names:
154
cmd_object = get_cmd_object(cmd_name)
155
if cmd_object.hidden:
157
print >>outfile, command_usage(cmd_object)
140
commands = ((n, get_cmd_object(n)) for n in names)
141
shown_commands = [(n, o) for n, o in commands if o.hidden == hidden]
142
max_name = max(len(n) for n, o in shown_commands)
143
indent = ' ' * (max_name + 1)
144
width = osutils.terminal_width() - 1
146
for cmd_name, cmd_object in sorted(shown_commands):
147
plugin_name = cmd_object.plugin_name()
148
if plugin_name is None:
151
plugin_name = ' [%s]' % plugin_name
158
153
cmd_help = cmd_object.help()
160
155
firstline = cmd_help.split('\n', 1)[0]
161
print >>outfile, ' ' + firstline
158
helpstring = '%-*s %s%s' % (max_name, cmd_name, firstline, plugin_name)
159
lines = textwrap.wrap(helpstring, subsequent_indent=indent,
162
out.append(line + '\n')
166
help_topics.topic_registry.register("commands",
167
_help_commands_to_text,
168
"Basic help for all commands")
169
help_topics.topic_registry.register("hidden-commands",
170
_help_commands_to_text,
171
"All hidden commands")