1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
|
# Copyright
import optparse
import sys
import libbe
import libbe.util.plugin
class UserError(Exception):
pass
class UnknownCommand(UserError):
def __init__(self, cmd):
Exception.__init__(self, "Unknown command '%s'" % cmd)
self.cmd = cmd
def get_command(command_name):
"""Retrieves the module for a user command
>>> try:
... get_command('asdf')
... except UnknownCommand, e:
... print e
Unknown command 'asdf'
>>> repr(get_command('list')).startswith("<module 'libbe.command.list' from ")
True
"""
try:
cmd = libbe.util.plugin.import_by_name(
'libbe.command.%s' % command_name.replace("-", "_"))
except ImportError, e:
raise UnknownCommand(command_name)
return cmd
def commands():
for modname in libbe.util.plugin.modnames('libbe.command'):
if modname != 'base':
yield modname
class CommandInput (object):
def __init__(self, name, help=''):
self.name = name
self.help = help
class Option (CommandInput):
def __init__(self, option_callback=None, short_name=None, arg=None,
type=None, *args, **kwargs):
CommandInput.__init__(self, *args, **kwargs)
self.option_callback = option_callback
self.short_name = short_name
self.arg = arg
self.type = type
if self.arg != None:
assert self.arg.name == self.name, \
'Name missmatch: %s != %s' % (self.arg.name, self.name)
class Argument (CommandInput):
def __init__(self, metavar=None, default=None,
optional=False, repeatable=False,
completion_callback=None, *args, **kwargs):
CommandInput.__init__(self, *args, **kwargs)
self.metavar = metavar
self.default = default
self.optional = optional
self.repeatable = repeatable
self.completion_callback = completion_callback
class _DummyParser (object):
def __init__(self, options):
self.option_list = options
self.option_groups = []
for option in self.option_list: # add required methods and attributes
option.dest = option.name
option._short_opts = []
if option.short_name != None:
option._short_opts.append('-' + option.short_name)
option._long_opts = ['--' + option.name]
option.takes_value = lambda : option.arg != None
if option.takes_value():
option.metavar = option.arg.metavar
else:
option.metavar = None
class OptionFormatter (optparse.IndentedHelpFormatter):
def __init__(self, options):
optparse.IndentedHelpFormatter.__init__(self)
self.options = options
def option_help(self):
# based on optparse.OptionParser.format_option_help()
parser = _DummyParser(self.options)
self.store_option_strings(parser)
ret = []
ret.append(self.format_heading('Options'))
self.indent()
for option in self.options:
ret.append(self.format_option(option))
ret.append('\n')
self.dedent()
# Drop the last '\n', or the header if no options or option groups:
return ''.join(ret[:-1])
class Command (object):
"""
>>> c = Command()
>>> print c.help()
usage: be command [options]
<BLANKLINE>
Options:
-h HELP, --help=HELP Print a help message
<BLANKLINE>
--complete=STRING Print a list of possible completions
<BLANKLINE>
-r REPO, --repo=REPO Select BE repository (see `be help repo`) rather
thanthe current directory.
<BLANKLINE>
A detailed help message.
"""
name = 'command'
def __init__(self, input_encoding=None, output_encoding=None):
self.status = None
self.result = None
self.input_encoding = None
self.output_encoding = None
self.options = [
Option(name='help', short_name='h',
help='Print a help message',
option_callback=self.help),
Option(name='complete', type='string',
help='Print a list of possible completions',
arg=Argument(name='complete', metavar='STRING', optional=True)),
]
self.args = []
def run(self, bugdir, options=None, args=None):
if options == None:
options = {}
if args == None:
args = []
params = {}
for option in self.options:
if option.name in options:
params[option.name] = options.pop(option.name)
elif option.arg != None:
params[option.name] = option.arg.default
else: # non-arg options are flags, set to default flag value
params[option.name] = False
if len(options) > 0:
raise UserError, 'Invalid options passed to command %s:\n %s' \
% (self.name, '\n '.join(['%s: %s' % (k,v)
for k,v in options.items()]))
for arg in self.args:
pass
if params['help'] == True:
pass
else:
params.pop('help')
if params['complete'] != None:
pass
else:
params.pop('complete')
self._setup_io(self.input_encoding, self.output_encoding)
self.status = self._run(bugdir, **params)
return self.status
def _run(self, bugdir, **kwargs):
pass
def _setup_io(self, input_encoding=None, output_encoding=None):
if input_encoding == None:
input_encoding = get_terminal_encoding()
if output_encoding == None:
output_encoding = get_terminal_encoding()
self.stdin = codecs.getwriter(input_encoding)(sys.stdin)
self.stdin.encoding = input_encoding
self.stdout = codecs.getwriter(output_encoding)(sys.stdout)
self.stdout.encoding = output_encoding
def help(self, *args):
return '\n\n'.join([self._usage(),
self._option_help(),
self._long_help()])
# if cmd != None:
# return get_command(cmd).help()
# cmdlist = []
# for name in commands():
# module = get_command(name)
# cmdlist.append((name, module.__desc__))
# cmdlist.sort()
# longest_cmd_len = max([len(name) for name,desc in cmdlist])
# ret = ["Bugs Everywhere - Distributed bug tracking",
# "", "Supported commands"]
# for name, desc in cmdlist:
# numExtraSpaces = longest_cmd_len-len(name)
# ret.append("be %s%*s %s" % (name, numExtraSpaces, "", desc))
# ret.extend(["", "Run", " be help [command]", "for more information."])
# longhelp = "\n".join(ret)
# if parser == None:
# return longhelp
# return parser.help_str() + "\n" + longhelp
def _usage(self):
usage = 'usage: be %s [options]' % self.name
num_optional = 0
for arg in self.args:
usage += ' '
if arg.optional == True:
usage += '['
num_optional += 1
usage += arg.metavar
if arg.repeatable == True:
usage += ' ...'
usage += ']'*num_optional
return usage
def _option_help(self):
o = OptionFormatter(self.options)
return o.option_help().strip('\n')
def _long_help(self):
return "A detailed help message."
|
