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