catalyst

   1 #!/usr/bin/python
   2
   3 import os,sys,imp,string
   4
   5 def usage():
   6         print "usage: meep!"
   7
   8 if len(sys.argv)==1 or sys.argv[1] in ["-h","--help"]:
   9         usage()
  10         sys.exit(1)
  11
  12 import targets
  13 targetmap={}
  14 targets.register(targetmap)
  15
  16 if os.getuid()!=0:
  17         #non-root callers can't go any further than here.
  18         die("This script requires root privileges to operate.")
  19
  20 myspec={}
  21 myconf={}
  22 if os.path.exists("/etc/catalyst.conf"):
  23         try:
  24                 execfile("/etc/catalyst.conf",myconf,myconf)
  25         except:
  26                 print "catalyst: Unable to /etc/catalyst.conf config file (syntax error)"
  27                 sys.exit(1)
  28
  29 confdefaults={ "storedir":"/var/tmp/catalyst","sharedir":"/usr/share/catalyst","distdir":"/usr/portage/distfiles",
  30 "portdir":"/usr/portage","options":"ccache"}
  31
  32 for x in confdefaults.keys():
  33         if myconf.has_key(x):
  34                 print "Setting",x,"to config file value \""+myconf[x]+"\""
  35                 myspec[x]=myconf[x]
  36         else:
  37                 print "Setting",x,"to default value \""+confdefaults[x]+"\""
  38                 myspec[x]=confdefaults[x]
  39
  40 #This allows plugins (and this code) to import modules in the /modules dir
  41 sys.path.append(myspec["sharedir"]+"/modules")
  42 try:
  43         from catalyst_support import *
  44 except ImportError:
  45         print "catalyst: catalyst_support module not found in "+myspec["sharedir"]+"/modules; exiting."
  46         sys.exit(1)
  47
  48 if "ccache" in string.split(myspec["options"]):
  49         print "Compiler cache support enabled."
  50         myspec["CCACHE"]="1"
  51 if "pkgcache" in string.split(myspec["options"]):
  52         print "Package cache support enabled."
  53         myspec["PKGCACHE"]="1"
  54 #determine target, call target constructor and hand it the rest of the arguments
  55
  56 try:
  57         addlargs={}
  58         arg_parse(myspec,addlargs)
  59         if not targetmap.has_key(myspec["target"]):
  60                 raise CatalystError,"Target \""+myspec["target"]+"\" not available."
  61         mytarget=targetmap[myspec["target"]](myspec,addlargs)
  62
  63         mytarget.run()
  64 except CatalystError:
  65         sys.exit(1)
  66 # Examples:
  67 # ./catalyst subarch=pentium4 version_stamp=20031016 target=stage3 rel_type=default rel_version=1.4 snapshot=20031016 source_subpath=default-x86-1.4/stage2-pentium4-20031016
  68 # ./catalyst target=snapshot version_stamp=20031028