#! /usr/bin/python2
#
# copyright (c) 2006 Josselin Mouette <joss@debian.org>
# Licensed under the GNU Lesser General Public License, version 2.1
# See COPYING for details

from optparse import OptionParser
import sys,os,os.path,shutil,tempfile

parser = OptionParser(usage="usage: %prog --[un]register file1.schemas [file2.schemas [...]]")

parser.add_option("--register", action="store_true", dest="register",
                  help="register schemas to the GConf database",
                  default=None)
parser.add_option("--unregister", action="store_false", dest="register",
                  help="unregister schemas from the GConf database",
                  default=None)
parser.add_option("--register-all", action="store_true", dest="register_all",
                   help="clean up the GConf database and register all schemas again",
                   default=False)
parser.add_option("--no-signal", action="store_false", default=True, dest="signal",
                  help="do not send SIGHUP the running gconfd-2 processes")
(options, args) = parser.parse_args()

if options.register==None and not options.register_all:
  parser.error("You need to specify --register or --unregister.")

if 'DPKG_RUNNING_VERSION' in os.environ and not options.register_all:
    # This is what happens when we are called in an obsolete postinst/prerm script
    # Do nothing, it will be done in the trigger
    sys.exit(0)

schema_location="/usr/share/gconf/schemas"
defaults_dest="/var/lib/gconf/defaults"

schemas = [ ]
if options.register_all:
  for f in os.listdir(schema_location):
    if f.endswith(".schemas"):
      schemas.append(os.path.join(schema_location,f))
else:
  for schema in args:
    if not os.path.isabs(schema):
      schema=os.path.join(schema_location,schema)
    if os.path.isfile(schema):
      schemas.append(schema)
    else:
      sys.stderr.write('Warning: %s could not be found.\n'%schema)

if os.geteuid():
  parser.error("You must be root to launch this program.")

if options.register_all:
  options.register=True
  for f in os.listdir(defaults_dest):
    os.remove(os.path.join(defaults_dest,f))
  open(os.path.join(defaults_dest,"%gconf-tree.xml"),"w").close()

if schemas:
    tmp_home=tempfile.mkdtemp(prefix='gconf-')
    env=os.environ.copy()
    env['HOME'] = tmp_home
    env['GCONF_CONFIG_SOURCE'] = 'xml:readwrite:'+defaults_dest
    if options.register:
      arg='--makefile-install-rule'
    else:
      arg='--makefile-uninstall-rule'

    fd = os.open("/dev/null",os.O_WRONLY)
    save_stdout=os.dup(1)
    save_stderr=os.dup(2)
    os.dup2(fd,1)
    os.dup2(fd,2)
    os.close(fd)
    res=os.spawnvpe(os.P_WAIT,'gconftool-2',['gconftool-2',arg]+schemas,env)
    os.dup2(save_stdout,1)
    os.close(save_stdout)
    os.dup2(save_stderr,2)
    os.close(save_stderr)

    shutil.rmtree(tmp_home)

    if(res):
      sys.exit(res)

if options.register and options.signal:
  # tell running processes to re-read the GConf database
  import signal
  try:
    pids=os.popen('pidof gconfd-2').readlines()[0].split()
    for pid in pids:
      try:
        os.kill(int(pid),signal.SIGHUP)
      except OSError:
        pass
  except IndexError:
    pass