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