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                     "strict_mode": False,
  78                 },
  79                 'chroot': {
  80                     "saveto": None,
  81                 },
  82                 'convert': {
  83                     "shell": False,
  84                 },
  85                 'bootstrap': {
  86                     "rootdir": '/var/tmp/mic-bootstrap',
  87                     "packages": [],
  88                     "distro_name": "",
  89                 },
  90                }
  91
  92     # make the manager class as singleton
  93     _instance = None
  94     def __new__(cls, *args, **kwargs):
  95         if not cls._instance:
  96             cls._instance = super(ConfigMgr, cls).__new__(cls, *args, **kwargs)
  97
  98         return cls._instance
  99
 100     def __init__(self, ksconf=None, siteconf=None):
 101         # reset config options
 102         self.reset()
 103
 104         if not siteconf:
 105             siteconf = get_siteconf()
 106
 107         # initial options from siteconf
 108         self._siteconf = siteconf
 109
 110         if ksconf:
 111             self._ksconf = ksconf
 112
 113     def reset(self):
 114         self.__ksconf = None
 115         self.__siteconf = None
 116
 117         # initialize the values with defaults
 118         for sec, vals in self.DEFAULTS.iteritems():
 119             setattr(self, sec, vals)
 120
 121     def __set_siteconf(self, siteconf):
 122         try:
 123             self.__siteconf = siteconf
 124             self._parse_siteconf(siteconf)
 125         except ConfigParser.Error, error:
 126             raise errors.ConfigError("%s" % error)
 127     def __get_siteconf(self):
 128         return self.__siteconf
 129     _siteconf = property(__get_siteconf, __set_siteconf)
 130
 131     def __set_ksconf(self, ksconf):
 132         if not os.path.isfile(ksconf):
 133             raise errors.KsError('Cannot find ks file: %s' % ksconf)
 134
 135         self.__ksconf = ksconf
 136         self._parse_kickstart(ksconf)
 137     def __get_ksconf(self):
 138         return self.__ksconf
 139     _ksconf = property(__get_ksconf, __set_ksconf)
 140
 141     def _parse_siteconf(self, siteconf):
 142
 143         if os.getenv("MIC_PLUGIN_DIR"):
 144             self.common["plugin_dir"] = os.environ["MIC_PLUGIN_DIR"]
 145
 146         if siteconf and not os.path.exists(siteconf):
 147             msger.warning("cannot find config file: %s" % siteconf)
 148             siteconf = None
 149
 150         if not siteconf:
 151             self.common["distro_name"] = "Tizen"
 152             # append common section items to other sections
 153             for section in self.DEFAULTS.keys():
 154                 if section != "common":
 155                     getattr(self, section).update(self.common)
 156
 157             return
 158
 159         parser = ConfigParser.SafeConfigParser()
 160         parser.read(siteconf)
 161
 162         for section in parser.sections():
 163             if section in self.DEFAULTS:
 164                 getattr(self, section).update(dict(parser.items(section)))
 165
 166         # append common section items to other sections
 167         for section in self.DEFAULTS.keys():
 168             if section != "common":
 169                 getattr(self, section).update(self.common)
 170
 171         # check and normalize the scheme of proxy url
 172         if self.create['proxy']:
 173             m = re.match('^(\w+)://.*', self.create['proxy'])
 174             if m:
 175                 scheme = m.group(1)
 176                 if scheme not in ('http', 'https', 'ftp', 'socks'):
 177                     raise errors.ConfigError("%s: proxy scheme is incorrect" % siteconf)
 178             else:
 179                 msger.warning("%s: proxy url w/o scheme, use http as default"
 180                               % siteconf)
 181                 self.create['proxy'] = "http://" + self.create['proxy']
 182
 183         proxy.set_proxies(self.create['proxy'], self.create['no_proxy'])
 184
 185         # bootstrap option handling
 186         self.set_runtime(self.create['runtime'])
 187         if isinstance(self.bootstrap['packages'], basestring):
 188             packages = self.bootstrap['packages'].replace('\n', ' ')
 189             if packages.find(',') != -1:
 190                 packages = packages.split(',')
 191             else:
 192                 packages = packages.split()
 193             self.bootstrap['packages'] = packages
 194
 195     def _parse_kickstart(self, ksconf=None):
 196         if not ksconf:
 197             return
 198
 199         ksconf = misc.normalize_ksfile(ksconf,
 200                                        self.create['release'],
 201                                        self.create['arch'])
 202
 203         ks = kickstart.read_kickstart(ksconf)
 204
 205         self.create['ks'] = ks
 206         self.create['name'] = os.path.splitext(os.path.basename(ksconf))[0]
 207
 208         self.create['name'] = misc.build_name(ksconf,
 209                                               self.create['release'],
 210                                               self.create['name_prefix'],
 211                                               self.create['name_suffix'])
 212
 213         self.create['destdir'] = self.create['outdir']
 214         if self.create['release'] is not None:
 215             self.create['destdir'] = "%s/%s/images/%s/" % (self.create['outdir'],
 216                                                            self.create['release'],
 217                                                            self.create['name'])
 218             self.create['name'] = self.create['release'] + '_' + self.create['name']
 219
 220             if not self.create['logfile']:
 221                 self.create['logfile'] = os.path.join(self.create['outdir'],
 222                                                       self.create['name'] + ".log")
 223                 self.create['releaselog'] = True
 224                 self.set_logfile()
 225
 226         msger.info("Retrieving repo metadata:")
 227         ksrepos = kickstart.get_repos(ks,
 228                                       self.create['extrarepos'],
 229                                       self.create['ignore_ksrepo'])
 230         if not ksrepos:
 231             raise errors.KsError('no valid repos found in ks file')
 232
 233         for repo in ksrepos:
 234             if hasattr(repo, 'baseurl') and repo.baseurl.startswith("file:"):
 235                 repourl = repo.baseurl.replace('file:', '')
 236                 repourl = "/%s" % repourl.lstrip('/')
 237                 self.create['localrepos'].append(repourl)
 238
 239         self.create['repomd'] = misc.get_metadata_from_repos(
 240                                                     ksrepos,
 241                                                     self.create['cachedir'])
 242         msger.raw(" DONE")
 243
 244         target_archlist, archlist = misc.get_arch(self.create['repomd'])
 245         if self.create['arch']:
 246             if self.create['arch'] not in archlist:
 247                 raise errors.ConfigError("Invalid arch %s for repository. "
 248                                   "Valid arches: %s" \
 249                                   % (self.create['arch'], ', '.join(archlist)))
 250         else:
 251             if len(target_archlist) == 1:
 252                 self.create['arch'] = str(target_archlist[0])
 253                 msger.info("Use detected arch %s." % target_archlist[0])
 254             else:
 255                 raise errors.ConfigError("Please specify a valid arch, "
 256                                          "the choice can be: %s" \
 257                                          % ', '.join(archlist))
 258
 259         kickstart.resolve_groups(self.create, self.create['repomd'])
 260
 261         # check selinux, it will block arm and btrfs image creation
 262         misc.selinux_check(self.create['arch'],
 263                            [p.fstype for p in ks.handler.partition.partitions])
 264
 265     def set_logfile(self, logfile = None):
 266         if not logfile:
 267             logfile = self.create['logfile']
 268
 269         logfile_dir = os.path.dirname(self.create['logfile'])
 270         if not os.path.exists(logfile_dir):
 271             os.makedirs(logfile_dir)
 272         msger.set_interactive(False)
 273         if inbootstrap():
 274             mode = 'a'
 275         else:
 276             mode = 'w'
 277         msger.set_logfile(self.create['logfile'], mode)
 278
 279     def set_runtime(self, runtime):
 280         if runtime not in ("bootstrap", "native"):
 281             raise errors.CreatorError("Invalid runtime mode: %s" % runtime)
 282
 283         if misc.get_distro()[0] in ("tizen", "Tizen"):
 284             runtime = "native"
 285         self.create['runtime'] = runtime
 286
 287 configmgr = ConfigMgr()