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#!/usr/bin/python
import ConfigParser
import os
import sys
sys.stdout.write("builder running...\n")
# Initialization
os.system("mount -t tmpfs tmpfs /etc")
os.mkdir("/etc/rootstrap")
os.system("mount -t hostfs hostfs -o /etc/rootstrap /etc/rootstrap")
os.system("mount -t proc proc /proc")
os.system("mount -t tmpfs tmpfs /tmp")
os.mkdir("/tmp/target")
# Locate working directory
workdir = '~/.rootstrap'
for arg in open('/proc/cmdline').read().split():
argsplit = arg.split('=')
if len(argsplit) > 1 and argsplit[0] == 'rsworkdir':
workdir = os.path.expanduser(argsplit[1])
def dispatch(module, vars):
"Invoke a rootstrap module"
for scriptpat in (workdir + '/modules/%s',
'/etc/rootstrap/modules/%s',
'/usr/lib/rootstrap/modules/%s'):
script = scriptpat % module
if os.path.exists(script):
print "Using rootstrap module %s from:\n\t%s" % (module,script)
os.spawnle(os.P_WAIT, script, script, vars)
return 1
sys.stderr.write('Skipping unknown module: %s\n' % module)
config = ConfigParser.ConfigParser()
config.optionxform = str # case sensitive
config.readfp(open('/etc/rootstrap/rootstrap.conf'))
config.read((workdir + '/rootstrap.conf',))
globalvars = { 'TARGET' : '/tmp/target', 'WORKDIR' : workdir }
for var in config.options('global'):
globalvars[var] = config.get('global', var)
for module in config.get('global', 'modules').split():
modulevars = globalvars
if config.has_section(module):
for var in config.options(module):
modulevars[var] = config.get(module,var)
dispatch(module, modulevars)
os.system("mount -o remount,ro /")
os.system("/sbin/halt -d -f")
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