mic/conf.py

   1 #!/usr/bin/python -tt
   2 #
   3 # Copyright (c) 2011 Intel, Inc.
   4 #
   5 # This program is free software; you can redistribute it and/or modify it
   6 # under the terms of the GNU General Public License as published by the Free
   7 # Software Foundation; version 2 of the License
   8 #
   9 # This program is distributed in the hope that it will be useful, but
  10 # WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  11 # or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12 # for more details.
  13 #
  14 # You should have received a copy of the GNU General Public License along
  15 # with this program; if not, write to the Free Software Foundation, Inc., 59
  16 # Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  17
  18 import os, sys, re
  19 import ConfigParser
  20
  21 from mic import msger
  22 from mic import kickstart
  23 from mic.utils import misc, runner, proxy, errors
  24
  25
  26 DEFAULT_GSITECONF = '/etc/mic/mic.conf'
  27
  28
  29 def get_siteconf():
  30     if hasattr(sys, 'real_prefix'):
  31         return os.path.join(sys.prefix, "etc/mic/mic.conf")
  32     else:
  33         return DEFAULT_GSITECONF
  34
  35 def inbootstrap():
  36     if os.path.exists(os.path.join("/", ".chroot.lock")):
  37         return True
  38     return (os.stat("/").st_ino != 2)
  39
  40 class ConfigMgr(object):
  41     prefer_backends = ["zypp", "yum"]
  42
  43     DEFAULTS = {'common': {
  44                     "distro_name": "Default Distribution",
  45                     "plugin_dir": "/usr/lib/mic/plugins", # TODO use prefix also?
  46                 },
  47                 'create': {
  48                     "tmpdir": '/var/tmp/mic',
  49                     "cachedir": '/var/tmp/mic/cache',
  50                     "outdir": './mic-output',
  51                     "destdir": None,
  52                     "arch": None, # None means auto-detect
  53                     "pkgmgr": "auto",
  54                     "name": "output",
  55                     "ksfile": None,
  56                     "ks": None,
  57                     "repomd": None,
  58                     "local_pkgs_path": None,
  59                     "release": None,
  60                     "logfile": None,
  61                     "releaselog": False,
  62                     "record_pkgs": [],
  63                     "pack_to": None,
  64                     "name_prefix": None,
  65                     "name_suffix": None,
  66                     "proxy": None,
  67                     "no_proxy": None,
  68                     "ssl_verify": "yes",
  69                     "copy_kernel": False,
  70                     "install_pkgs": None,
  71                     "check_pkgs": [],
  72                     "repourl": {},
  73                     "localrepos": [],  # save localrepos
  74                     "runtime": "bootstrap",
  75                     "extrarepos": {},
  76                     "ignore_ksrepo": False,
  77                 },
  78                 'chroot': {
  79                     "saveto": None,
  80                 },
  81                 'convert': {
  82                     "shell": False,
  83                 },
  84                 'bootstrap': {
  85                     "rootdir": '/var/tmp/mic-bootstrap',
  86                     "packages": [],
  87                     "distro_name": "",
  88                 },
  89                }
  90
  91     # make the manager class as singleton
  92     _instance = None
  93     def __new__(cls, *args, **kwargs):
  94         if not cls._instance:
  95             cls._instance = super(ConfigMgr, cls).__new__(cls, *args, **kwargs)
  96
  97         return cls._instance
  98
  99     def __init__(self, ksconf=None, siteconf=None):
 100         # reset config options
 101         self.reset()
 102
 103         if not siteconf:
 104             siteconf = get_siteconf()
 105
 106         # initial options from siteconf
 107         self._siteconf = siteconf
 108
 109         if ksconf:
 110             self._ksconf = ksconf
 111
 112     def reset(self):
 113         self.__ksconf = None
 114         self.__siteconf = None
 115
 116         # initialize the values with defaults
 117         for sec, vals in self.DEFAULTS.iteritems():
 118             setattr(self, sec, vals)
 119
 120     def __set_siteconf(self, siteconf):
 121         try:
 122             self.__siteconf = siteconf
 123             self._parse_siteconf(siteconf)
 124         except ConfigParser.Error, error:
 125             raise errors.ConfigError("%s" % error)
 126     def __get_siteconf(self):
 127         return self.__siteconf
 128     _siteconf = property(__get_siteconf, __set_siteconf)
 129
 130     def __set_ksconf(self, ksconf):
 131         if not os.path.isfile(ksconf):
 132             raise errors.KsError('Cannot find ks file: %s' % ksconf)
 133
 134         self.__ksconf = ksconf
 135         self._parse_kickstart(ksconf)
 136     def __get_ksconf(self):
 137         return self.__ksconf
 138     _ksconf = property(__get_ksconf, __set_ksconf)
 139
 140     def _parse_siteconf(self, siteconf):
 141
 142         if os.getenv("MIC_PLUGIN_DIR"):
 143             self.common["plugin_dir"] = os.environ["MIC_PLUGIN_DIR"]
 144
 145         if siteconf and not os.path.exists(siteconf):
 146             msger.warning("cannot find config file: %s" % siteconf)
 147             siteconf = None
 148
 149         if not siteconf:
 150             self.common["distro_name"] = "Tizen"
 151             # append common section items to other sections
 152             for section in self.DEFAULTS.keys():
 153                 if section != "common":
 154                     getattr(self, section).update(self.common)
 155
 156             return
 157
 158         parser = ConfigParser.SafeConfigParser()
 159         parser.read(siteconf)
 160
 161         for section in parser.sections():
 162             if section in self.DEFAULTS:
 163                 getattr(self, section).update(dict(parser.items(section)))
 164
 165         # append common section items to other sections
 166         for section in self.DEFAULTS.keys():
 167             if section != "common":
 168                 getattr(self, section).update(self.common)
 169
 170         # check and normalize the scheme of proxy url
 171         if self.create['proxy']:
 172             m = re.match('^(\w+)://.*', self.create['proxy'])
 173             if m:
 174                 scheme = m.group(1)
 175                 if scheme not in ('http', 'https', 'ftp', 'socks'):
 176                     raise errors.ConfigError("%s: proxy scheme is incorrect" % siteconf)
 177             else:
 178                 msger.warning("%s: proxy url w/o scheme, use http as default"
 179                               % siteconf)
 180                 self.create['proxy'] = "http://" + self.create['proxy']
 181
 182         proxy.set_proxies(self.create['proxy'], self.create['no_proxy'])
 183
 184         # bootstrap option handling
 185         self.set_runtime(self.create['runtime'])
 186         if isinstance(self.bootstrap['packages'], basestring):
 187             packages = self.bootstrap['packages'].replace('\n', ' ')
 188             if packages.find(',') != -1:
 189                 packages = packages.split(',')
 190             else:
 191                 packages = packages.split()
 192             self.bootstrap['packages'] = packages
 193
 194     def _parse_kickstart(self, ksconf=None):
 195         if not ksconf:
 196             return
 197
 198         ksconf = misc.normalize_ksfile(ksconf,
 199                                        self.create['release'],
 200                                        self.create['arch'])
 201
 202         ks = kickstart.read_kickstart(ksconf)
 203
 204         self.create['ks'] = ks
 205         self.create['name'] = os.path.splitext(os.path.basename(ksconf))[0]
 206
 207         self.create['name'] = misc.build_name(ksconf,
 208                                               self.create['release'],
 209                                               self.create['name_prefix'],
 210                                               self.create['name_suffix'])
 211
 212         self.create['destdir'] = self.create['outdir']
 213         if self.create['release'] is not None:
 214             self.create['destdir'] = "%s/%s/images/%s/" % (self.create['outdir'],
 215                                                            self.create['release'],
 216                                                            self.create['name'])
 217             self.create['name'] = self.create['release'] + '_' + self.create['name']
 218
 219             if not self.create['logfile']:
 220                 self.create['logfile'] = os.path.join(self.create['outdir'],
 221                                                       self.create['name'] + ".log")
 222                 self.create['releaselog'] = True
 223                 self.set_logfile()
 224
 225         msger.info("Retrieving repo metadata:")
 226         ksrepos = kickstart.get_repos(ks,
 227                                       self.create['extrarepos'],
 228                                       self.create['ignore_ksrepo'])
 229         if not ksrepos:
 230             raise errors.KsError('no valid repos found in ks file')
 231
 232         for repo in ksrepos:
 233             if hasattr(repo, 'baseurl') and repo.baseurl.startswith("file:"):
 234                 repourl = repo.baseurl.replace('file:', '')
 235                 repourl = "/%s" % repourl.lstrip('/')
 236                 self.create['localrepos'].append(repourl)
 237
 238         self.create['repomd'] = misc.get_metadata_from_repos(
 239                                                     ksrepos,
 240                                                     self.create['cachedir'])
 241         msger.raw(" DONE")
 242
 243         target_archlist, archlist = misc.get_arch(self.create['repomd'])
 244         if self.create['arch']:
 245             if self.create['arch'] not in archlist:
 246                 raise errors.ConfigError("Invalid arch %s for repository. "
 247                                   "Valid arches: %s" \
 248                                   % (self.create['arch'], ', '.join(archlist)))
 249         else:
 250             if len(target_archlist) == 1:
 251                 self.create['arch'] = str(target_archlist[0])
 252                 msger.info("Use detected arch %s." % target_archlist[0])
 253             else:
 254                 raise errors.ConfigError("Please specify a valid arch, "
 255                                          "the choice can be: %s" \
 256                                          % ', '.join(archlist))
 257
 258         kickstart.resolve_groups(self.create, self.create['repomd'])
 259
 260         # check selinux, it will block arm and btrfs image creation
 261         misc.selinux_check(self.create['arch'],
 262                            [p.fstype for p in ks.handler.partition.partitions])
 263
 264     def set_logfile(self, logfile = None):
 265         if not logfile:
 266             logfile = self.create['logfile']
 267
 268         logfile_dir = os.path.dirname(self.create['logfile'])
 269         if not os.path.exists(logfile_dir):
 270             os.makedirs(logfile_dir)
 271         msger.set_interactive(False)
 272         if inbootstrap():
 273             mode = 'a'
 274         else:
 275             mode = 'w'
 276         msger.set_logfile(self.create['logfile'], mode)
 277
 278     def set_runtime(self, runtime):
 279         if runtime not in ("bootstrap", "native"):
 280             raise errors.CreatorError("Invalid runtime mode: %s" % runtime)
 281
 282         if misc.get_distro()[0] in ("tizen", "Tizen"):
 283             runtime = "native"
 284         self.create['runtime'] = runtime
 285
 286 configmgr = ConfigMgr()