chaind/chaind/settings.py

127 lines
3.7 KiB
Python

# standard imports
import logging
import os
import uuid
# external imports
from chainlib.settings import ChainSettings
from chainqueue.settings import *
logg = logging.getLogger(__name__)
class ChaindSettings(ChainSettings):
def __init__(settings, include_sync=False, include_queue=False):
super(ChaindSettings, settings).__init__()
settings.include_sync = include_sync
settings.include_queue = include_queue
def dir_for(self, k):
return os.path.join(self.o['SESSION_PATH'], k)
def process_session(settings, config):
session_id = config.get('SESSION_ID')
base_dir = os.getcwd()
data_dir = config.get('SESSION_DATA_PATH')
if data_dir == None:
data_dir = os.path.join(base_dir, '.chaind', 'chaind', settings.get('CHAIND_BACKEND'))
data_engine_dir = os.path.join(data_dir, config.get('CHAIND_ENGINE'))
os.makedirs(data_engine_dir, exist_ok=True)
# check if existing session
if session_id == None:
fp = os.path.join(data_engine_dir, 'default')
try:
os.stat(fp)
fp = os.path.realpath(fp)
except FileNotFoundError:
fp = None
if fp != None:
session_id = os.path.basename(fp)
make_default = False
if session_id == None:
session_id = str(uuid.uuid4())
make_default = True
chain_spec = settings.get('CHAIN_SPEC')
network_id_str = str(chain_spec.network_id())
# create the session persistent dir
session_path = os.path.join(
data_engine_dir,
chain_spec.arch(),
chain_spec.fork(),
network_id_str,
session_id,
)
if make_default:
fp = os.path.join(data_engine_dir, 'default')
os.symlink(session_path, fp)
data_path = session_path
os.makedirs(data_path, exist_ok=True)
# create volatile dir
uid = os.getuid()
runtime_path = config.get('SESSION_RUNTIME_PATH')
if runtime_path == None:
runtime_path = os.path.join('/run', 'user', str(uid), 'chaind', settings.get('CHAIND_BACKEND'))
runtime_path = os.path.join(
runtime_path,
config.get('CHAIND_ENGINE'),
chain_spec.arch(),
chain_spec.fork(),
str(chain_spec.network_id()),
session_id,
)
os.makedirs(runtime_path, exist_ok=True)
settings.set('SESSION_RUNTIME_PATH', runtime_path)
settings.set('SESSION_PATH', session_path)
settings.set('SESSION_DATA_PATH', data_path)
settings.set('SESSION_ID', session_id)
return settings
def process_socket(settings, config):
socket_path = config.get('SESSION_SOCKET_PATH')
if socket_path == None:
socket_path = os.path.join(settings.get('SESSION_RUNTIME_PATH'), 'chaind.sock')
settings.set('SESSION_SOCKET_PATH', socket_path)
return settings
def process_dispatch(settings, config):
settings.set('SESSION_DISPATCH_DELAY', 0.01)
return settings
def process_token(settings, config):
settings.set('TOKEN_MODULE', config.get('TOKEN_MODULE'))
return settings
def process_backend(settings, config):
settings.set('CHAIND_BACKEND', config.get('STATE_BACKEND')) #backend)
return settings
def process_queue(settings, config):
if config.get('STATE_PATH') == None:
queue_state_dir = settings.dir_for('queue')
config.add(queue_state_dir, 'STATE_PATH', False)
logg.debug('setting queue state path {}'.format(queue_state_dir))
settings = process_queue_tx(settings, config)
settings = process_queue_paths(settings, config)
if config.get('STATE_BACKEND') == 'fs':
settings = process_queue_backend_fs(settings, config)
settings = process_queue_store(settings, config)
return settings