catalyst

   1 #!/usr/bin/python
   2 # Copyright 1999-2004 Gentoo Technologies, Inc.
   3 # Distributed under the terms of the GNU General Public License v2
   4 # $Header: /var/cvsroot/gentoo/src/catalyst/catalyst,v 1.29 2004/02/12 19:51:37 drobbins Exp $
   5
   6 import os,sys,imp,string
   7
   8 def usage():
   9         print "Usage: catalyst [-f file] [variable=value ...]"
  10         print " -h --help               print this usage and exit"
  11         print " -v --version            display version information"
  12         print " -f --file               read specified file for build instructions"
  13         print " variable=value          specify a variable/value pair"
  14
  15 def vers():
  16         print "Gentoo catalyst, version "+version
  17         print "Copyright 2003-2004 Gentoo Technologies, Inc."
  18         print "Distributed under the GNU General Public License version 2"
  19
  20 version="1.0"
  21
  22 if len(sys.argv)==1 or sys.argv[1] in ["-h","--help"]:
  23         usage()
  24         sys.exit(1)
  25 elif sys.argv[1] in ["-v","--version"]:
  26         vers()
  27         sys.exit(1)
  28 if os.getuid()!=0:
  29         #non-root callers can't go any further than here.
  30         print "catalyst: This script requires root privileges to operate."
  31         sys.exit(1)
  32
  33 myspec={}
  34 myconf={}
  35 myconffile="/etc/catalyst.conf"
  36 if os.environ.has_key("clst_conf"):
  37         if not os.path.exists(os.environ["clst_conf"]):
  38                 print "catalyst: Unable to find config file specified in env var 'clst_conf'"
  39                 sys.exit(1)
  40         myconffile=os.environ["clst_conf"]
  41
  42 if os.path.exists(myconffile):
  43         try:
  44                 execfile(myconffile,myconf,myconf)
  45         except:
  46                 print "catalyst: Unable to parse "+myconffile+" config file (syntax error)"
  47                 sys.exit(1)
  48
  49 confdefaults={ "storedir":"/var/tmp/catalyst","sharedir":"/usr/share/catalyst","distdir":"/usr/portage/distfiles",
  50 "portdir":"/usr/portage","options":"ccache"}
  51
  52 for x in confdefaults.keys():
  53         if myconf.has_key(x):
  54                 print "Setting",x,"to config file value \""+myconf[x]+"\""
  55                 myspec[x]=myconf[x]
  56         else:
  57                 print "Setting",x,"to default value \""+confdefaults[x]+"\""
  58                 myspec[x]=confdefaults[x]
  59
  60 #This allows plugins (and this code) to import modules in the /modules dir
  61 sys.path.append(myspec["sharedir"]+"/modules")
  62 try:
  63         from catalyst_support import *
  64         import targets
  65 except ImportError:
  66         print "catalyst: python modules not found in "+myspec["sharedir"]+"/modules; exiting."
  67         sys.exit(1)
  68
  69 targetmap={}
  70 targets.register(targetmap)
  71
  72 myspec["CCACHE"]="1"
  73 print "Compiler cache support enabled."
  74
  75 if "pkgcache" in string.split(myspec["options"]):
  76         print "Package cache support enabled."
  77         myspec["PKGCACHE"]="1"
  78
  79 if "distcc" in string.split(myspec["options"]):
  80         print "Distcc support enabled."
  81         myspec["DISTCC"]="1"
  82
  83 if myconf.has_key("envscript"):
  84         print "Envscript support enabled."
  85         myspec["ENVSCRIPT"]=myconf["envscript"]
  86
  87 if sys.argv[1] in ["-f", "--file" ]:
  88         try:
  89                 addlargs=read_spec(sys.argv[2])
  90         except:
  91                 raise CatalystError,"Unable to read spec file: "+sys.argv[2]
  92         unparsedargs=sys.argv[3:]
  93 else:
  94         addlargs={}
  95         unparsedargs=sys.argv[1:]
  96 try:
  97         arg_parse(myspec,addlargs,unparsedargs)
  98         if not targetmap.has_key(myspec["target"]):
  99                 raise CatalystError,"Target \""+myspec["target"]+"\" not available."
 100         mytarget=targetmap[myspec["target"]](myspec,addlargs)
 101
 102         mytarget.run()
 103 except CatalystError:
 104         sys.exit(1)