def start(self, auto_process=False):
self.status = None
self.db = DebconfCommunicator(PACKAGE, cloexec=True)
prep = self.prepare()
self.command = prep[0]
question_patterns = prep[1]
if len(prep) > 2:
env = prep[2]
else:
env = {}
self.ui_loop_level = 0
self.debug("Starting up '%s' for %s.%s", self.command,
self.__class__.__module__, self.__class__.__name__)
self.debug("Watching for question patterns %s",
', '.join(question_patterns))
widgets = {}
for pattern in question_patterns:
widgets[pattern] = self
self.dbfilter = DebconfFilter(self.db, widgets)
# TODO: Set as unseen all questions that we're going to ask.
self.dbfilter.start(self.command, blocking=False, extra_env=env)
# Clearly, this isn't enough for full non-blocking operation.
# However, debconf itself is generally quick, and the confmodule
# will generally be listening for a reply when we try to send one;
# the slow bit is waiting for the confmodule to decide to send a
# command. Therefore, this is the only file descriptor we bother to
# watch, which greatly simplifies our life.
self.frontend.watch_debconf_fd(self.dbfilter.subout_fd,
self.process_input)
def __init__(self):
# Load preseed file
if os.path.exists(DEFAULT_PRESEED_FILE):
os.system("debconf-set-selections " + DEFAULT_PRESEED_FILE)
db = DebconfCommunicator("ubiquity")
self.BREADCRUMB_STEPS_PRESEED = {
"stepLanguage":
db.exist("ubiquity/stepLanguage") == "true"
and db.get("ubiquity/stepLanguage") == "true",
"stepLocation":
db.exist("ubiquity/stepLocation") == "true"
and db.get("ubiquity/stepLocation") == "true",
"stepKeyboardConf":
db.exist("ubiquity/stepKeyboardConf") == "true"
and db.get("ubiquity/stepKeyboardConf") == "true",
"stepUserInfo":
db.exist("ubiquity/stepUserInfo") == "true"
and db.get("ubiquity/stepUserInfo") == "true",
"stepPartDisk":
db.exist("ubiquity/stepPartDisk") == "true"
and db.get("ubiquity/stepPartDisk") == "true",
"stepPartAuto":
db.exist("ubiquity/stepPartAuto") == "true"
and db.get("ubiquity/stepPartAuto") == "true",
"stepPartAdvanced":
db.exist("ubiquity/stepPartAdvanced") == "true"
and db.get("ubiquity/stepPartAdvanced") == "true",
"stepPartMountpoints":
db.exist("ubiquity/stepMountpoints") == "true"
and db.get("ubiquity/stepMountpoints") == "true",
"stepReady":
db.exist("ubiquity/stepReady") == "true"
and db.get("ubiquity/stepReady") == "true"
}
db.shutdown()
self.BREADCRUMB_STEPS = {
"stepLanguage": 1,
"stepLocation": 2,
"stepKeyboardConf": 3,
"stepUserInfo": 4,
"stepPartDisk": 5,
"stepPartAuto": 5,
"stepPartAdvanced": 5,
"stepPartMountpoints": 5,
"stepReady": 6
}
def debconf_communicator(self):
return DebconfCommunicator('oem-config', cloexec=True)