aboutsummaryrefslogtreecommitdiff
path: root/scripts/lib/wic/creator.py
blob: 760848f32051e096dabdce4d7f49773cee74af93 (plain)
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
#!/usr/bin/env python -tt
#
# Copyright (c) 2011 Intel, Inc.
#
# 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; version 2 of the License
#
# 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., 59
# Temple Place - Suite 330, Boston, MA 02111-1307, USA.

import os, sys
from optparse import SUPPRESS_HELP

from wic import msger
from wic.utils import cmdln, errors
from wic.conf import configmgr
from wic.plugin import pluginmgr


class Creator(cmdln.Cmdln):
    """${name}: create an image

    Usage:
        ${name} SUBCOMMAND <ksfile> [OPTS]

    ${command_list}
    ${option_list}
    """

    name = 'wic create(cr)'

    def __init__(self, *args, **kwargs):
        cmdln.Cmdln.__init__(self, *args, **kwargs)
        self._subcmds = []

        # get cmds from pluginmgr
        # mix-in do_subcmd interface
        for subcmd, klass in pluginmgr.get_plugins('imager').iteritems():
            if not hasattr(klass, 'do_create'):
                msger.warning("Unsupported subcmd: %s" % subcmd)
                continue

            func = getattr(klass, 'do_create')
            setattr(self.__class__, "do_"+subcmd, func)
            self._subcmds.append(subcmd)

    def get_optparser(self):
        optparser = cmdln.CmdlnOptionParser(self)
        optparser.add_option('-d', '--debug', action='store_true',
                             dest='debug',
                             help=SUPPRESS_HELP)
        optparser.add_option('-v', '--verbose', action='store_true',
                             dest='verbose',
                             help=SUPPRESS_HELP)
        optparser.add_option('', '--logfile', type='string', dest='logfile',
                             default=None,
                             help='Path of logfile')
        optparser.add_option('-c', '--config', type='string', dest='config',
                             default=None,
                             help='Specify config file for wic')
        optparser.add_option('-o', '--outdir', type='string', action='store',
                             dest='outdir', default=None,
                             help='Output directory')
        optparser.add_option('', '--tmpfs', action='store_true', dest='enabletmpfs',
                             help='Setup tmpdir as tmpfs to accelerate, experimental'
                                  ' feature, use it if you have more than 4G memory')
        return optparser

    def preoptparse(self, argv):
        optparser = self.get_optparser()

        largs = []
        rargs = []
        while argv:
            arg = argv.pop(0)

            if arg in ('-h', '--help'):
                rargs.append(arg)

            elif optparser.has_option(arg):
                largs.append(arg)

                if optparser.get_option(arg).takes_value():
                    try:
                        largs.append(argv.pop(0))
                    except IndexError:
                        raise errors.Usage("option %s requires arguments" % arg)

            else:
                if arg.startswith("--"):
                    if "=" in arg:
                        opt = arg.split("=")[0]
                    else:
                        opt = None
                elif arg.startswith("-") and len(arg) > 2:
                    opt = arg[0:2]
                else:
                    opt = None

                if opt and optparser.has_option(opt):
                    largs.append(arg)
                else:
                    rargs.append(arg)

        return largs + rargs

    def postoptparse(self):
        abspath = lambda pth: os.path.abspath(os.path.expanduser(pth))

        if self.options.verbose:
            msger.set_loglevel('verbose')
        if self.options.debug:
            msger.set_loglevel('debug')

        if self.options.logfile:
            logfile_abs_path = abspath(self.options.logfile)
            if os.path.isdir(logfile_abs_path):
                raise errors.Usage("logfile's path %s should be file"
                                   % self.options.logfile)
            if not os.path.exists(os.path.dirname(logfile_abs_path)):
                os.makedirs(os.path.dirname(logfile_abs_path))
            msger.set_interactive(False)
            msger.set_logfile(logfile_abs_path)
            configmgr.create['logfile'] = self.options.logfile

        if self.options.config:
            configmgr.reset()
            configmgr._siteconf = self.options.config

        if self.options.outdir is not None:
            configmgr.create['outdir'] = abspath(self.options.outdir)

        cdir = 'outdir'
        if os.path.exists(configmgr.create[cdir]) \
           and not os.path.isdir(configmgr.create[cdir]):
            msger.error('Invalid directory specified: %s' \
                        % configmgr.create[cdir])

        if self.options.enabletmpfs:
            configmgr.create['enabletmpfs'] = self.options.enabletmpfs

    def main(self, argv=None):
        if argv is None:
            argv = sys.argv
        else:
            argv = argv[:] # don't modify caller's list

        self.optparser = self.get_optparser()
        if self.optparser:
            try:
                argv = self.preoptparse(argv)
                self.options, args = self.optparser.parse_args(argv)

            except cmdln.CmdlnUserError, ex:
                msg = "%s: %s\nTry '%s help' for info.\n"\
                      % (self.name, ex, self.name)
                msger.error(msg)

            except cmdln.StopOptionProcessing, ex:
                return 0
        else:
            # optparser=None means no process for opts
            self.options, args = None, argv[1:]

        if not args:
            return self.emptyline()

        self.postoptparse()

        return self.cmd(args)

    def precmd(self, argv): # check help before cmd

        if '-h' in argv or '?' in argv or '--help' in argv or 'help' in argv:
            return argv

        if len(argv) == 1:
            return ['help', argv[0]]

        return argv