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                     "localtpkrepos":[],
  75                     "runtime": "bootstrap",
  76                     "extrarepos": {},
  77                     "ignore_ksrepo": False,
  78                     "strict_mode": False,
  79                     "run_script": None,
  80                     "tpk_install": None,
  81                     "use_mic_in_bootstrap": False,
  82                 },
  83                 'chroot': {
  84                     "saveto": None,
  85                 },
  86                 'convert': {
  87                     "shell": False,
  88                 },
  89                 'bootstrap': {
  90                     "rootdir": '/var/tmp/mic-bootstrap',
  91                     "packages": [],
  92                     "distro_name": "",
  93                 },
  94                }
  95
  96     # make the manager class as singleton
  97     _instance = None
  98     def __new__(cls, *args, **kwargs):
  99         if not cls._instance:
 100             cls._instance = super(ConfigMgr, cls).__new__(cls, *args, **kwargs)
 101
 102         return cls._instance
 103
 104     def __init__(self, ksconf=None, siteconf=None):
 105         # reset config options
 106         self.reset()
 107
 108         if not siteconf:
 109             siteconf = get_siteconf()
 110
 111         # initial options from siteconf
 112         self._siteconf = siteconf
 113
 114         if ksconf:
 115             self._ksconf = ksconf
 116
 117     def reset(self):
 118         self.__ksconf = None
 119         self.__siteconf = None
 120
 121         # initialize the values with defaults
 122         for sec, vals in self.DEFAULTS.iteritems():
 123             setattr(self, sec, vals)
 124
 125     def __set_siteconf(self, siteconf):
 126         try:
 127             self.__siteconf = siteconf
 128             self._parse_siteconf(siteconf)
 129         except ConfigParser.Error, error:
 130             raise errors.ConfigError("%s" % error)
 131     def __get_siteconf(self):
 132         return self.__siteconf
 133     _siteconf = property(__get_siteconf, __set_siteconf)
 134
 135     def __set_ksconf(self, ksconf):
 136         if not os.path.isfile(ksconf):
 137             raise errors.KsError('Cannot find ks file: %s' % ksconf)
 138
 139         self.__ksconf = ksconf
 140         self._parse_kickstart(ksconf)
 141     def __get_ksconf(self):
 142         return self.__ksconf
 143     _ksconf = property(__get_ksconf, __set_ksconf)
 144
 145     def _parse_siteconf(self, siteconf):
 146
 147         if os.getenv("MIC_PLUGIN_DIR"):
 148             self.common["plugin_dir"] = os.environ["MIC_PLUGIN_DIR"]
 149
 150         if siteconf and not os.path.exists(siteconf):
 151             msger.warning("cannot find config file: %s" % siteconf)
 152             siteconf = None
 153
 154         if not siteconf:
 155             self.common["distro_name"] = "Tizen"
 156             # append common section items to other sections
 157             for section in self.DEFAULTS.keys():
 158                 if section != "common":
 159                     getattr(self, section).update(self.common)
 160
 161             return
 162
 163         parser = ConfigParser.SafeConfigParser()
 164         parser.read(siteconf)
 165
 166         for section in parser.sections():
 167             if section in self.DEFAULTS:
 168                 getattr(self, section).update(dict(parser.items(section)))
 169
 170         # append common section items to other sections
 171         for section in self.DEFAULTS.keys():
 172             if section != "common":
 173                 getattr(self, section).update(self.common)
 174
 175         # check and normalize the scheme of proxy url
 176         if self.create['proxy']:
 177             m = re.match('^(\w+)://.*', self.create['proxy'])
 178             if m:
 179                 scheme = m.group(1)
 180                 if scheme not in ('http', 'https', 'ftp', 'socks'):
 181                     raise errors.ConfigError("%s: proxy scheme is incorrect" % siteconf)
 182             else:
 183                 msger.warning("%s: proxy url w/o scheme, use http as default"
 184                               % siteconf)
 185                 self.create['proxy'] = "http://" + self.create['proxy']
 186
 187         proxy.set_proxies(self.create['proxy'], self.create['no_proxy'])
 188
 189         # bootstrap option handling
 190         self.set_runtime(self.create['runtime'])
 191         if isinstance(self.bootstrap['packages'], basestring):
 192             packages = self.bootstrap['packages'].replace('\n', ' ')
 193             if packages.find(',') != -1:
 194                 packages = packages.split(',')
 195             else:
 196                 packages = packages.split()
 197             self.bootstrap['packages'] = packages
 198
 199         if type(self.create['use_mic_in_bootstrap']) != 'bool':
 200             use_mic_in_bootstrap = str(self.create['use_mic_in_bootstrap'])
 201             if use_mic_in_bootstrap.lower() in ('on', 'yes', 'true', '1'):
 202                 self.create['use_mic_in_bootstrap'] = True
 203             else:
 204                 self.create['use_mic_in_bootstrap'] = False
 205
 206     def _parse_kickstart(self, ksconf=None):
 207         if not ksconf:
 208             return
 209
 210         ksconf = misc.normalize_ksfile(ksconf,
 211                                        self.create['release'],
 212                                        self.create['arch'])
 213
 214         ks = kickstart.read_kickstart(ksconf)
 215
 216         self.create['ks'] = ks
 217         self.create['name'] = os.path.splitext(os.path.basename(ksconf))[0]
 218
 219         self.create['name'] = misc.build_name(ksconf,
 220                                               self.create['release'],
 221                                               self.create['name_prefix'],
 222                                               self.create['name_suffix'])
 223
 224         self.create['destdir'] = self.create['outdir']
 225         if self.create['release'] is not None:
 226             self.create['destdir'] = "%s/%s/images/%s/" % (self.create['outdir'],
 227                                                            self.create['release'],
 228                                                            self.create['name'])
 229             self.create['name'] = self.create['release'] + '_' + self.create['name']
 230             if self.create['pack_to'] is not None:
 231                 if '@NAME@' in self.create['pack_to']:
 232                     self.create['pack_to'] = self.create['pack_to'].replace('@NAME@', self.create['name'])
 233                 self.create['name'] = misc.strip_archive_suffix(self.create['pack_to'])
 234                 if self.create['name'] is None:
 235                     raise errors.CreatorError("Not supported archive file format: %s" % self.create['pack_to'])
 236
 237             if not self.create['logfile']:
 238                 self.create['logfile'] = os.path.join(self.create['destdir'],
 239                                                       self.create['name'] + ".log")
 240                 self.create['releaselog'] = True
 241                 self.set_logfile()
 242
 243         elif self.create['pack_to'] is not None:
 244             if '@NAME@' in self.create['pack_to']:
 245                 self.create['pack_to'] = self.create['pack_to'].replace('@NAME@', self.create['name'])
 246             self.create['name'] = misc.strip_archive_suffix(self.create['pack_to'])
 247             if self.create['name'] is None:
 248                 raise errors.CreatorError("Not supported archive file format: %s" % self.create['pack_to'])
 249
 250         msger.info("Retrieving repo metadata:")
 251         ksrepos = kickstart.get_repos(ks,
 252                                       self.create['extrarepos'],
 253                                       self.create['ignore_ksrepo'])
 254         if not ksrepos:
 255             raise errors.KsError('no valid repos found in ks file')
 256
 257         for repo in ksrepos:
 258             if hasattr(repo, 'baseurl') and repo.baseurl.startswith("file:"):
 259                 repourl = repo.baseurl.replace('file:', '')
 260                 repourl = "/%s" % repourl.lstrip('/')
 261                 self.create['localrepos'].append(repourl)
 262
 263         self.create['repomd'] = misc.get_metadata_from_repos(
 264                                                     ksrepos,
 265                                                     self.create['cachedir'])
 266         kstpkrepos = kickstart.get_tpkrepos(ks)
 267         if kstpkrepos:
 268             for tpk_repo in kstpkrepos:
 269                 if hasattr(tpk_repo,'baseurl') and tpk_repo.baseurl.startswith("file:"):
 270                     tpk_repourl = tpk_repo.baseurl.replace('file:','')
 271                     tpk_repourl = "/%s" % tpk_repourl.lstrip('/')
 272                     self.create['localtpkrepos'].append(tpk_repourl)
 273
 274         msger.raw(" DONE")
 275
 276         target_archlist, archlist = misc.get_arch(self.create['repomd'])
 277         if self.create['arch']:
 278             if self.create['arch'] not in archlist:
 279                 raise errors.ConfigError("Invalid arch %s for repository. "
 280                                   "Valid arches: %s" \
 281                                   % (self.create['arch'], ', '.join(archlist)))
 282         else:
 283             if len(target_archlist) == 1:
 284                 self.create['arch'] = str(target_archlist[0])
 285                 msger.info("Use detected arch %s." % target_archlist[0])
 286             else:
 287                 raise errors.ConfigError("Please specify a valid arch, "
 288                                          "the choice can be: %s" \
 289                                          % ', '.join(archlist))
 290
 291         kickstart.resolve_groups(self.create, self.create['repomd'])
 292
 293         # check selinux, it will block arm and btrfs image creation
 294         misc.selinux_check(self.create['arch'],
 295                            [p.fstype for p in ks.handler.partition.partitions])
 296
 297     def set_logfile(self, logfile = None):
 298         if not logfile:
 299             logfile = self.create['logfile']
 300
 301         logfile_dir = os.path.dirname(self.create['logfile'])
 302         if not os.path.exists(logfile_dir):
 303             os.makedirs(logfile_dir)
 304         msger.set_interactive(False)
 305         if inbootstrap():
 306             mode = 'a'
 307         else:
 308             mode = 'w'
 309         msger.set_logfile(self.create['logfile'], mode)
 310
 311     def set_runtime(self, runtime):
 312         if runtime != "bootstrap":
 313             raise errors.CreatorError("Invalid runtime mode: %s, only 'bootstrap' mode is allowed." % runtime)
 314
 315         if misc.get_distro()[0] in ("tizen", "Tizen"):
 316             runtime = "native"
 317         self.create['runtime'] = runtime
 318
 319 configmgr = ConfigMgr()