1
# Copyright (C) 2004, 2005, 2006 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
20
20
# executable files with reasonable names.
22
22
# TODO: `help commands --all` should show hidden commands
26
"""Bazaar-NG -- a free distributed version-control tool
27
http://bazaar-vcs.org/
31
bzr init makes this directory a versioned branch
32
bzr branch make a copy of another branch
34
bzr add make files or directories versioned
35
bzr ignore ignore a file or pattern
36
bzr mv move or rename a versioned file
38
bzr status summarize changes in working copy
39
bzr diff show detailed diffs
41
bzr merge pull in changes from another branch
42
bzr commit save some or all changes
44
bzr log show history of changes
45
bzr check validate storage
47
bzr help init more help on e.g. init command
48
bzr help commands list all commands
55
def help(topic=None, outfile = None):
33
def help(topic=None, outfile=None):
34
"""Write the help for the specific topic to outfile"""
57
36
outfile = sys.stdout
59
outfile.write(global_help)
60
elif topic == 'commands':
61
help_commands(outfile = outfile)
41
if topic in help_topics.topic_registry:
42
txt = help_topics.topic_registry.get_detail(topic)
63
help_on_command(topic, outfile = outfile)
45
help_on_command(topic, outfile=outfile)
66
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)
88
82
def help_on_command(cmdname, outfile=None):
89
83
from bzrlib.commands import get_cmd_object
91
85
cmdname = str(cmdname)
94
88
outfile = sys.stdout
96
90
cmd_object = get_cmd_object(cmdname)
98
92
doc = cmd_object.help()
100
94
raise NotImplementedError("sorry, no detailed help yet for %r" % cmdname)
102
print >>outfile, 'usage:', command_usage(cmd_object)
96
print >>outfile, 'usage:', command_usage(cmd_object)
104
98
if cmd_object.aliases:
105
99
print >>outfile, 'aliases:',
116
112
def help_on_command_options(cmd, outfile=None):
117
from bzrlib.option import Option
113
from bzrlib.option import Option, get_optparser
118
116
options = cmd.options()
123
outfile.write('\noptions:\n')
124
for option_name, option in sorted(options.items()):
125
l = ' --' + option_name
126
if option.type is not None:
127
l += ' ' + option.argname.upper()
128
short_name = option.short_name()
130
assert len(short_name) == 1
131
l += ', -' + short_name
132
l += (30 - len(l)) * ' ' + option.help
133
# TODO: split help over multiple lines with correct indenting and
135
wrapped = textwrap.fill(l, initial_indent='', subsequent_indent=30*' ')
136
outfile.write(wrapped + '\n')
118
outfile.write(get_optparser(options).format_option_help())
139
121
def help_commands(outfile=None):
140
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"""
141
130
from bzrlib.commands import (builtin_command_names,
142
131
plugin_command_names,
148
names = set() # to eliminate duplicates
149
names.update(builtin_command_names())
134
if topic == 'hidden-commands':
138
names = set(builtin_command_names()) # to eliminate duplicates
150
139
names.update(plugin_command_names())
154
for cmd_name in names:
155
cmd_object = get_cmd_object(cmd_name)
156
if cmd_object.hidden:
158
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
159
153
cmd_help = cmd_object.help()
161
155
firstline = cmd_help.split('\n', 1)[0]
162
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")
added
removed
bzrlib/help.py
