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