catalyst

   1 #!/usr/bin/python -OO
   2
   3 # Maintained in full by:
   4 # Eric Edgar <rocket@gentoo.org>
   5 # Andrew Gaffney <agaffney@gentoo.org>
   6 # Chris Gianelloni <wolf31o2@gentoo.org>
   7
   8 import os,sys,imp,string,getopt
   9 import pdb
  10
  11 __maintainer__="Chris Gianelloni <wolf31o2@gentoo.org>"
  12 __version__="2.0.5_pre5"
  13
  14 conf_values={}
  15
  16 def usage():
  17         print "Usage catalyst [options] [-C variable=value...] [ -s identifier]"
  18         print " -a --clear-autoresume   clear autoresume flags"
  19         print " -c --config             use specified configuration file"
  20         print " -C --cli                catalyst commandline (MUST BE LAST OPTION)"
  21         print " -d --debug              enable debugging"
  22         print " -f --file               read specfile"
  23         print " -F --fetchonly          fetch files only"
  24         print " -h --help               print this help message"
  25         print " -p --purge              clear tmp dirs,package cache and autoresume flags"
  26         print " -s --snapshot           generate a Portage snapshot"
  27         print " -V --version            display version information"
  28         print " -v --verbose            verbose output"
  29         print
  30         print "Usage examples:"
  31         print
  32         print "Using the commandline option (-C, --cli) to build a Portage snapshot:"
  33         print "catalyst -C target=snapshot version_stamp=my_date"
  34         print
  35         print "Using the snapshot option (-s, --snapshot) to build a Portage snapshot:"
  36         print "catalyst -s 20051208"
  37         print
  38         print "Using the specfile option (-f, --file) to build a stage target:"
  39         print "catalyst -f stage1-specfile.spec"
  40
  41 def version():
  42         print "Gentoo Catalyst, version "+__version__
  43         print "Copyright 2003-2007 Gentoo Foundation"
  44         print "Distributed under the GNU General Public License version 2\n"
  45
  46 def parse_config(myconfig):
  47         # search a couple of different areas for the main config file
  48         myconf={}
  49         config_file=""
  50
  51         confdefaults={ "storedir":"/var/tmp/catalyst",\
  52                 "sharedir":"/usr/share/catalyst","distdir":"/usr/portage/distfiles",\
  53                 "portdir":"/usr/portage","options":"",\
  54                 "snapshot_cache":"/var/tmp/catalyst/snapshot_cache",\
  55                 "hash_function":"crc32"}
  56
  57         # first, try the one passed (presumably from the cmdline)
  58         if myconfig:
  59                 if os.path.exists(myconfig):
  60                         print "Using command line specified Catalyst configuration file, "+myconfig
  61                         config_file=myconfig
  62
  63                 else:
  64                         print "!!! catalyst: Could not use specified configuration file "+\
  65                                 myconfig
  66                         sys.exit(1)
  67
  68         # next, try the default location
  69         elif os.path.exists("/etc/catalyst/catalyst.conf"):
  70                 print "Using default Catalyst configuration file, /etc/catalyst/catalyst.conf"
  71                 config_file="/etc/catalyst/catalyst.conf"
  72
  73         # can't find a config file (we are screwed), so bail out
  74         else:
  75                 print "!!! catalyst: Could not find a suitable configuration file"
  76                 sys.exit(1)
  77
  78         # now, try and parse the config file "config_file"
  79         try:
  80                 execfile(config_file, myconf, myconf)
  81
  82         except:
  83                 print "!!! catalyst: Unable to parse configuration file, "+myconfig
  84                 sys.exit(1)
  85
  86         # now, load up the values into conf_values so that we can use them
  87         for x in confdefaults.keys():
  88                 if myconf.has_key(x):
  89                         print "Setting",x,"to config file value \""+myconf[x]+"\""
  90                         conf_values[x]=myconf[x]
  91                 else:
  92                         print "Setting",x,"to default value \""+confdefaults[x]+"\""
  93                         conf_values[x]=confdefaults[x]
  94
  95         # parse out the rest of the options from the config file
  96         if "autoresume" in string.split(conf_values["options"]):
  97                 print "Autoresuming support enabled."
  98                 conf_values["AUTORESUME"]="1"
  99
 100         if "ccache" in string.split(conf_values["options"]):
 101                 print "Compiler cache support enabled."
 102                 conf_values["CCACHE"]="1"
 103
 104         if "clear-autoresume" in string.split(conf_values["options"]):
 105                 print "Cleaning autoresume flags support enabled."
 106                 conf_values["CLEAR_AUTORESUME"]="1"
 107
 108 #       if "compress" in string.split(conf_values["options"]):
 109 #               print "Compression enabled."
 110 #               conf_values["COMPRESS"]="1"
 111
 112         if "distcc" in string.split(conf_values["options"]):
 113                 print "Distcc support enabled."
 114                 conf_values["DISTCC"]="1"
 115
 116         if "kerncache" in string.split(conf_values["options"]):
 117                 print "Kernel cache support enabled."
 118                 conf_values["KERNCACHE"]="1"
 119
 120         if "pkgcache" in string.split(conf_values["options"]):
 121                 print "Package cache support enabled."
 122                 conf_values["PKGCACHE"]="1"
 123
 124         if "purge" in string.split(conf_values["options"]):
 125                 print "Purge support enabled."
 126                 conf_values["PURGE"]="1"
 127
 128         if "seedcache" in string.split(conf_values["options"]):
 129                 print "Seed cache support enabled."
 130                 conf_values["SEEDCACHE"]="1"
 131
 132         if "snapcache" in string.split(conf_values["options"]):
 133                 print "Snapshot cache support enabled."
 134                 conf_values["SNAPCACHE"]="1"
 135
 136         if "metadata_overlay" in conf_values["options"].split():
 137                 print "Use of metadata_overlay module for portage enabled."
 138                 conf_values["METADATA_OVERLAY"]="1"
 139
 140 #       if "tarball" in string.split(conf_values["options"]):
 141 #               print "Tarball creation enabled."
 142 #               conf_values["TARBALL"]="1"
 143
 144         if myconf.has_key("digests"):
 145                 conf_values["digests"]=myconf["digests"]
 146
 147         if myconf.has_key("envscript"):
 148                 print "Envscript support enabled."
 149                 conf_values["ENVSCRIPT"]=myconf["envscript"]
 150
 151 def import_modules():
 152         # import catalyst's own modules (i.e. catalyst_support and the arch modules)
 153         targetmap={}
 154
 155         try:
 156                 for x in required_build_targets:
 157                         try:
 158                                 fh=open(conf_values["sharedir"]+"/modules/"+x+".py")
 159                                 module=imp.load_module(x,fh,"modules/"+x+".py",(".py","r",imp.PY_SOURCE))
 160                                 fh.close()
 161
 162                         except IOError:
 163                                 raise CatalystError,"Can't find "+x+".py plugin in "+\
 164                                         conf_values.settings["sharedir"]+"/modules/"
 165
 166                 for x in valid_build_targets:
 167                         try:
 168                                 fh=open(conf_values["sharedir"]+"/modules/"+x+".py")
 169                                 module=imp.load_module(x,fh,"modules/"+x+".py",(".py","r",imp.PY_SOURCE))
 170                                 module.register(targetmap)
 171                                 fh.close()
 172
 173                         except IOError:
 174                                 raise CatalystError,"Can't find "+x+".py plugin in "+\
 175                                         conf_values.settings["sharedir"]+"/modules/"
 176
 177         except ImportError:
 178                 print "!!! catalyst: Python modules not found in "+\
 179                         conf_values["sharedir"]+"/modules; exiting."
 180                 sys.exit(1)
 181
 182         return targetmap
 183
 184 def do_spec(myspecfile):
 185         try:
 186                 addlargs=read_spec(myspecfile)
 187         except:
 188                 sys.exit(1)
 189
 190         return addlargs
 191
 192 def do_cli(cmdline):
 193         try:
 194                 return arg_parse(cmdline)
 195
 196         except CatalystError:
 197                 print "!!! catalyst: Could not parse commandline, exiting."
 198                 sys.exit(1)
 199
 200 def build_target(addlargs, targetmap):
 201         try:
 202                 if not targetmap.has_key(addlargs["target"]):
 203                         raise CatalystError,"Target \""+addlargs["target"]+"\" not available."
 204
 205                 mytarget=targetmap[addlargs["target"]](conf_values, addlargs)
 206
 207                 mytarget.run()
 208
 209         except:
 210                 # TODO: Capture traceback, so we can display this error after printing of the traceback
 211                 print "!!! catalyst: Error encountered during run of target " + addlargs["target"]
 212                 raise
 213
 214 if __name__ == "__main__":
 215         targetmap={}
 216
 217         version()
 218         if os.getuid() != 0:
 219                 # catalyst cannot be run as a normal user due to chroots, mounts, etc
 220                 print "!!! catalyst: This script requires root privileges to operate"
 221                 sys.exit(2)
 222
 223         # we need some options in order to work correctly
 224         if len(sys.argv) < 2:
 225                 usage()
 226                 sys.exit(2)
 227
 228         # parse out the command line arguments
 229         try:
 230                 opts,args = getopt.getopt(sys.argv[1:], "aphvdc:C:f:FVs:", ["purge","help", "version", "debug",\
 231                         "clear-autoresume", "config=", "cli=", "file=", "fetch", "verbose","snapshot="])
 232
 233         except getopt.GetoptError:
 234                 usage()
 235                 sys.exit(2)
 236
 237         # defaults for commandline opts
 238         debug=False
 239         verbose=False
 240         fetch=False
 241         myconfig=""
 242         myspecfile=""
 243         mycmdline=[]
 244         myopts=[]
 245
 246         # check preconditions
 247         if len(opts) == 0:
 248                 print "!!! catalyst: please specify one of either -f or -C\n"
 249                 usage()
 250                 sys.exit(2)
 251         run=0
 252         for o, a in opts:
 253                 if o in ("-h", "--help"):
 254                         usage()
 255                         sys.exit(1)
 256
 257                 if o in ("-V", "--version"):
 258                         print "Catalyst version "+__version__
 259                         sys.exit(1)
 260
 261                 if o in ("-d", "--debug"):
 262                         if len(sys.argv) < 3:
 263                                 print "!!! catalyst: please specify one of either -f or -C\n"
 264                                 usage()
 265                                 sys.exit(2)
 266                         else:
 267                                 conf_values["DEBUG"]="1"
 268
 269                 if o in ("-c", "--config"):
 270                         if len(sys.argv) < 3:
 271                                 print "!!! catalyst: please specify one of either -f or -C\n"
 272                                 usage()
 273                                 sys.exit(2)
 274                         else:
 275                                 myconfig=a
 276
 277                 if o in ("-C", "--cli"):
 278                         run=1
 279                         x=sys.argv.index(o)+1
 280                         while x < len(sys.argv):
 281                                 mycmdline.append(sys.argv[x])
 282                                 x=x+1
 283
 284                 if o in ("-f", "--file"):
 285                         run=1
 286                         myspecfile=a
 287
 288                 if o in ("-F", "--fetchonly"):
 289                         if len(sys.argv) < 3:
 290                                 print "!!! catalyst: please specify one of either -f or -C\n"
 291                                 usage()
 292                                 sys.exit(2)
 293                         else:
 294                                 conf_values["FETCH"]="1"
 295
 296                 if o in ("-v", "--verbose"):
 297                         if len(sys.argv) < 3:
 298                                 print "!!! catalyst: please specify one of either -f or -C\n"
 299                                 usage()
 300                                 sys.exit(2)
 301                         else:
 302                                 conf_values["VERBOSE"]="1"
 303
 304                 if o in ("-s", "--snapshot"):
 305                         if len(sys.argv) < 3:
 306                                 print "!!! catalyst: missing snapshot identifier\n"
 307                                 usage()
 308                                 sys.exit(2)
 309                         else:
 310                                 run=1
 311                                 mycmdline.append("target=snapshot")
 312                                 mycmdline.append("version_stamp="+a)
 313
 314                 if o in ("-p", "--purge"):
 315                         if len(sys.argv) < 3:
 316                                 print "!!! catalyst: please specify one of either -f or -C\n"
 317                                 usage()
 318                                 sys.exit(2)
 319                         else:
 320                                 conf_values["PURGE"]="1"
 321                 if o in ("-a", "--clear-autoresume"):
 322                         if len(sys.argv) < 3:
 323                                 print "!!! catalyst: please specify one of either -f or -C\n"
 324                                 usage()
 325                                 sys.exit(2)
 326                         else:
 327                                 conf_values["CLEAR_AUTORESUME"]="1"
 328         if run != 1:
 329                 print "!!! catalyst: please specify one of either -f or -C\n"
 330                 usage()
 331                 sys.exit(2)
 332
 333         # import configuration file and import our main module using those settings
 334         parse_config(myconfig)
 335         sys.path.append(conf_values["sharedir"]+"/modules")
 336         from catalyst_support import *
 337
 338         # Start checking that digests are valid now that the hash_map was imported from catalyst_support
 339         if conf_values.has_key("digests"):
 340                 for i in conf_values["digests"].split():
 341                         if not hash_map.has_key(i):
 342                                 print
 343                                 print i+" is not a valid digest entry"
 344                                 print "Valid digest entries:"
 345                                 print hash_map.keys()
 346                                 print
 347                                 print "Catalyst aborting...."
 348                                 sys.exit(2)
 349                         if find_binary(hash_map[i][1]) == None:
 350                                 print
 351                                 print "digest="+i
 352                                 print "\tThe "+hash_map[i][1]+\
 353                                         " binary was not found. It needs to be in your system path"
 354                                 print
 355                                 print "Catalyst aborting...."
 356                                 sys.exit(2)
 357         if conf_values.has_key("hash_function"):
 358                 if not hash_map.has_key(conf_values["hash_function"]):
 359                         print
 360                         print conf_values["hash_function"]+" is not a valid hash_function entry"
 361                         print "Valid hash_function entries:"
 362                         print hash_map.keys()
 363                         print
 364                         print "Catalyst aborting...."
 365                         sys.exit(2)
 366                 if find_binary(hash_map[conf_values["hash_function"]][1]) == None:
 367                         print
 368                         print "hash_function="+conf_values["hash_function"]
 369                         print "\tThe "+hash_map[conf_values["hash_function"]][1]+\
 370                                 " binary was not found. It needs to be in your system path"
 371                         print
 372                         print "Catalyst aborting...."
 373                         sys.exit(2)
 374
 375         # import the rest of the catalyst modules
 376         targetmap=import_modules()
 377
 378         addlargs={}
 379
 380         if myspecfile:
 381                 addlargs.update(do_spec(myspecfile))
 382
 383         if mycmdline:
 384                 addlargs.update(do_cli(mycmdline))
 385
 386         if not addlargs.has_key("target"):
 387                 raise CatalystError, "Required value \"target\" not specified."
 388
 389         # everything is setup, so the build is a go
 390         try:
 391                 build_target(addlargs, targetmap)
 392
 393         except CatalystError:
 394                 print
 395                 print "Catalyst aborting...."
 396                 sys.exit(2)
 397         except KeyboardInterrupt:
 398                 print "\nCatalyst build aborted due to user interrupt ( Ctrl-C )"
 399                 print
 400                 print "Catalyst aborting...."
 401                 sys.exit(2)
 402         except LockInUse:
 403                 print "Catalyst aborting...."
 404                 sys.exit(2)
 405         except:
 406                 print "Catalyst aborting...."
 407                 raise
 408                 sys.exit(2)
 409
 410         #except CatalystError:
 411         #       print
 412         #       print "Catalyst aborting...."
 413         #       sys.exit(2)
 414         #except KeyError:
 415         #       print "\nproblem with command line or spec file ( Key Error )"
 416         #       print "Key: "+str(sys.exc_value)+" was not found"
 417         #       print "Catalyst aborting...."
 418         #       sys.exit(2)
 419         #except UnboundLocalError:
 420         #       print
 421         #       print "UnboundLocalError: "+str(sys.exc_value)+" was not found"
 422         #       raise
 423         #       print
 424         #       print "Catalyst aborting...."
 425         #       sys.exit(2)