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_pre4"
  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 "tarball" in string.split(conf_values["options"]):
 137 #               print "Tarball creation enabled."
 138 #               conf_values["TARBALL"]="1"
 139
 140         if myconf.has_key("digests"):
 141                 conf_values["digests"]=myconf["digests"]
 142
 143         if myconf.has_key("envscript"):
 144                 print "Envscript support enabled."
 145                 conf_values["ENVSCRIPT"]=myconf["envscript"]
 146
 147 def import_modules():
 148         # import catalyst's own modules (i.e. catalyst_support and the arch modules)
 149         targetmap={}
 150
 151         try:
 152                 for x in required_build_targets:
 153                         try:
 154                                 fh=open(conf_values["sharedir"]+"/modules/"+x+".py")
 155                                 module=imp.load_module(x,fh,"modules/"+x+".py",(".py","r",imp.PY_SOURCE))
 156                                 fh.close()
 157
 158                         except IOError:
 159                                 raise CatalystError,"Can't find "+x+".py plugin in "+\
 160                                         conf_values.settings["sharedir"]+"/modules/"
 161
 162                 for x in valid_build_targets:
 163                         try:
 164                                 fh=open(conf_values["sharedir"]+"/modules/"+x+".py")
 165                                 module=imp.load_module(x,fh,"modules/"+x+".py",(".py","r",imp.PY_SOURCE))
 166                                 module.register(targetmap)
 167                                 fh.close()
 168
 169                         except IOError:
 170                                 raise CatalystError,"Can't find "+x+".py plugin in "+\
 171                                         conf_values.settings["sharedir"]+"/modules/"
 172
 173         except ImportError:
 174                 print "!!! catalyst: Python modules not found in "+\
 175                         conf_values["sharedir"]+"/modules; exiting."
 176                 sys.exit(1)
 177
 178         return targetmap
 179
 180 def do_spec(myspecfile):
 181         try:
 182                 addlargs=read_spec(myspecfile)
 183         except:
 184                 sys.exit(1)
 185
 186         return addlargs
 187
 188 def do_cli(cmdline):
 189         try:
 190                 return arg_parse(cmdline)
 191
 192         except CatalystError:
 193                 print "!!! catalyst: Could not parse commandline, exiting."
 194                 sys.exit(1)
 195
 196 def build_target(addlargs, targetmap):
 197         try:
 198                 if not targetmap.has_key(addlargs["target"]):
 199                         raise CatalystError,"Target \""+addlargs["target"]+"\" not available."
 200
 201                 mytarget=targetmap[addlargs["target"]](conf_values, addlargs)
 202
 203                 mytarget.run()
 204
 205         except:
 206                 # TODO: Capture traceback, so we can display this error after printing of the traceback
 207                 print "!!! catalyst: Error encountered during run of target " + addlargs["target"]
 208                 raise
 209
 210 if __name__ == "__main__":
 211         targetmap={}
 212
 213         version()
 214         if os.getuid() != 0:
 215                 # catalyst cannot be run as a normal user due to chroots, mounts, etc
 216                 print "!!! catalyst: This script requires root privileges to operate"
 217                 sys.exit(2)
 218
 219         # we need some options in order to work correctly
 220         if len(sys.argv) < 2:
 221                 usage()
 222                 sys.exit(2)
 223
 224         # parse out the command line arguments
 225         try:
 226                 opts,args = getopt.getopt(sys.argv[1:], "aphvdc:C:f:FVs:", ["purge","help", "version", "debug",\
 227                         "clear-autoresume", "config=", "cli=", "file=", "fetch", "verbose","snapshot="])
 228
 229         except getopt.GetoptError:
 230                 usage()
 231                 sys.exit(2)
 232
 233         # defaults for commandline opts
 234         debug=False
 235         verbose=False
 236         fetch=False
 237         myconfig=""
 238         myspecfile=""
 239         mycmdline=[]
 240         myopts=[]
 241
 242         # check preconditions
 243         if len(opts) == 0:
 244                 print "!!! catalyst: please specify one of either -f or -C\n"
 245                 usage()
 246                 sys.exit(2)
 247         run=0
 248         for o, a in opts:
 249                 if o in ("-h", "--help"):
 250                         usage()
 251                         sys.exit(1)
 252
 253                 if o in ("-V", "--version"):
 254                         print "Catalyst version "+__version__
 255                         sys.exit(1)
 256
 257                 if o in ("-d", "--debug"):
 258                         if len(sys.argv) < 3:
 259                                 print "!!! catalyst: please specify one of either -f or -C\n"
 260                                 usage()
 261                                 sys.exit(2)
 262                         else:
 263                                 conf_values["DEBUG"]="1"
 264
 265                 if o in ("-c", "--config"):
 266                         if len(sys.argv) < 3:
 267                                 print "!!! catalyst: please specify one of either -f or -C\n"
 268                                 usage()
 269                                 sys.exit(2)
 270                         else:
 271                                 myconfig=a
 272
 273                 if o in ("-C", "--cli"):
 274                         run=1
 275                         x=sys.argv.index(o)+1
 276                         while x < len(sys.argv):
 277                                 mycmdline.append(sys.argv[x])
 278                                 x=x+1
 279
 280                 if o in ("-f", "--file"):
 281                         run=1
 282                         myspecfile=a
 283
 284                 if o in ("-F", "--fetchonly"):
 285                         if len(sys.argv) < 3:
 286                                 print "!!! catalyst: please specify one of either -f or -C\n"
 287                                 usage()
 288                                 sys.exit(2)
 289                         else:
 290                                 conf_values["FETCH"]="1"
 291
 292                 if o in ("-v", "--verbose"):
 293                         if len(sys.argv) < 3:
 294                                 print "!!! catalyst: please specify one of either -f or -C\n"
 295                                 usage()
 296                                 sys.exit(2)
 297                         else:
 298                                 conf_values["VERBOSE"]="1"
 299
 300                 if o in ("-s", "--snapshot"):
 301                         if len(sys.argv) < 3:
 302                                 print "!!! catalyst: missing snapshot identifier\n"
 303                                 usage()
 304                                 sys.exit(2)
 305                         else:
 306                                 run=1
 307                                 mycmdline.append("target=snapshot")
 308                                 mycmdline.append("version_stamp="+a)
 309
 310                 if o in ("-p", "--purge"):
 311                         if len(sys.argv) < 3:
 312                                 print "!!! catalyst: please specify one of either -f or -C\n"
 313                                 usage()
 314                                 sys.exit(2)
 315                         else:
 316                                 conf_values["PURGE"]="1"
 317                 if o in ("-a", "--clear-autoresume"):
 318                         if len(sys.argv) < 3:
 319                                 print "!!! catalyst: please specify one of either -f or -C\n"
 320                                 usage()
 321                                 sys.exit(2)
 322                         else:
 323                                 conf_values["CLEAR_AUTORESUME"]="1"
 324         if run != 1:
 325                 print "!!! catalyst: please specify one of either -f or -C\n"
 326                 usage()
 327                 sys.exit(2)
 328
 329         # import configuration file and import our main module using those settings
 330         parse_config(myconfig)
 331         sys.path.append(conf_values["sharedir"]+"/modules")
 332         from catalyst_support import *
 333
 334         # Start checking that digests are valid now that the hash_map was imported from catalyst_support
 335         if conf_values.has_key("digests"):
 336                 for i in conf_values["digests"].split():
 337                         if not hash_map.has_key(i):
 338                                 print
 339                                 print i+" is not a valid digest entry"
 340                                 print "Valid digest entries:"
 341                                 print hash_map.keys()
 342                                 print
 343                                 print "Catalyst aborting...."
 344                                 sys.exit(2)
 345                         if find_binary(hash_map[i][1]) == None:
 346                                 print
 347                                 print "digest="+i
 348                                 print "\tThe "+hash_map[i][1]+\
 349                                         " binary was not found. It needs to be in your system path"
 350                                 print
 351                                 print "Catalyst aborting...."
 352                                 sys.exit(2)
 353         if conf_values.has_key("hash_function"):
 354                 if not hash_map.has_key(conf_values["hash_function"]):
 355                         print
 356                         print conf_values["hash_function"]+" is not a valid hash_function entry"
 357                         print "Valid hash_function entries:"
 358                         print hash_map.keys()
 359                         print
 360                         print "Catalyst aborting...."
 361                         sys.exit(2)
 362                 if find_binary(hash_map[conf_values["hash_function"]][1]) == None:
 363                         print
 364                         print "hash_function="+conf_values["hash_function"]
 365                         print "\tThe "+hash_map[conf_values["hash_function"]][1]+\
 366                                 " binary was not found. It needs to be in your system path"
 367                         print
 368                         print "Catalyst aborting...."
 369                         sys.exit(2)
 370
 371         # import the rest of the catalyst modules
 372         targetmap=import_modules()
 373
 374         addlargs={}
 375
 376         if myspecfile:
 377                 addlargs.update(do_spec(myspecfile))
 378
 379         if mycmdline:
 380                 addlargs.update(do_cli(mycmdline))
 381
 382         if not addlargs.has_key("target"):
 383                 raise CatalystError, "Required value \"target\" not specified."
 384
 385         # everything is setup, so the build is a go
 386         try:
 387                 build_target(addlargs, targetmap)
 388
 389         except CatalystError:
 390                 print
 391                 print "Catalyst aborting...."
 392                 sys.exit(2)
 393         except KeyboardInterrupt:
 394                 print "\nCatalyst build aborted due to user interrupt ( Ctrl-C )"
 395                 print
 396                 print "Catalyst aborting...."
 397                 sys.exit(2)
 398         except LockInUse:
 399                 print "Catalyst aborting...."
 400                 sys.exit(2)
 401         except:
 402                 print "Catalyst aborting...."
 403                 raise
 404                 sys.exit(2)
 405
 406         #except CatalystError:
 407         #       print
 408         #       print "Catalyst aborting...."
 409         #       sys.exit(2)
 410         #except KeyError:
 411         #       print "\nproblem with command line or spec file ( Key Error )"
 412         #       print "Key: "+str(sys.exc_value)+" was not found"
 413         #       print "Catalyst aborting...."
 414         #       sys.exit(2)
 415         #except UnboundLocalError:
 416         #       print
 417         #       print "UnboundLocalError: "+str(sys.exc_value)+" was not found"
 418         #       raise
 419         #       print
 420         #       print "Catalyst aborting...."
 421         #       sys.exit(2)