def restore_menu(self, message, delay):
"""
Prints a table with all existing backups and lets the user select
the backup that should be restored.
"""
backups = self.get_backups()
backups = list(backups.items())
backups.sort(key=lambda e: e[0])
# Break if there is no backup available.
if not backups:
print("{} - restore-menu: failure: there is no backup available."\
.format(self.world.name))
return None
# Continue with the restore.
body = [(date.ctime(),
filesize_to_string(os.path.getsize(path))
) for date, path in backups]
head = ["Date", "Size"]
table_printer = pprinttable.TablePrinter("Nr.", "<")
table_printer.print(body, head)
backup = userinput.get_value(
prompt="Select the backup that you want to restore: ",
conv_func=lambda s: int(s.strip()),
check_func=lambda s: s in range(len(backups))
)
date, backup = backups[backup]
return self.restore(backup, message, delay)
def uninstall(self):
"""
Uninstalls the server.
Before the server will be uninstalled, there will be some checks to
make sure the server can be uninstalled without any side effects.
"""
# We need a server that could replace this one.
avlb_server = self.app.server.get_names()
avlb_server.pop( avlb_server.index(self.server.name) )
# Break if there is no other server available.
if not avlb_server:
print("{} - uninstall: failure: There's no other server that "\
"could replace this one.".format(self.server.name))
return None
# Make sure, that the server should be removed.
question = "{} - uninstall: Are you sure, that you want to "\
"uninstall the server? ".format(self.server.name)
if not userinput.ask(question):
return None
# Get the name of the server that should replace this one.
replacement = userinput.get_value(
prompt=("{} - uninstall: Which server should replace this one?\n\t"
"(Chose from: {}) ".format(self.server.name, avlb_server)),
check_func=lambda server: server in avlb_server,
)
replacement = self.app.server.get(replacement)
# Remove the server.
try:
self.server.uninstall(replacement)
except server_wrapper.ServerIsOnlineError as error:
print("{} - uninstall: The server is still running. ",
"\n\t'{}'".format(self.server.name, error))
return None
