Rework whole package structure (improved dependency handling)

lib/envvars/__init__.py

@@ -1,7 +1,7 @@
 from collections import namedtuple
 from os import environ
 
-from tfw.decorators.lazy_property import lazy_property
+from tfw.internals.lazy import lazy_property
 
 
 class LazyEnvironment:

lib/tfw/builtins/__init__.py

@@ -1,10 +0,0 @@
-from .directory_snapshotting_event_handler import DirectorySnapshottingEventHandler
-from .frontend_event_handler import FrontendEventHandler
-from .fsm_managing_event_handler import FSMManagingEventHandler
-from .ide_event_handler import IdeEventHandler
-from .log_monitoring_event_handler import LogMonitoringEventHandler
-from .pipe_io_event_handler import PipeIOEventHandlerBase, PipeIOEventHandler
-from .pipe_io_event_handler import TransformerPipeIOEventHandler, CommandEventHandler
-from .process_managing_event_handler import ProcessManagingEventHandler
-from .terminal_commands_event_handler import TerminalCommandsEventHandler
-from .terminal_event_handler import TerminalEventHandler

lib/tfw/components/__init__.py

@@ -1,11 +0,0 @@
-from .commands_equal import CommandsEqual
-from .file_manager import FileManager
-from .fsm_updater import FSMUpdater
-from .history_monitor import BashMonitor, GDBMonitor
-from .log_inotify_observer import LogInotifyObserver
-from .message_sender import MessageSender
-from .message_storage import FrontendMessageStorage
-from .snapshot_provider import SnapshotProvider
-from .supervisor import ProcessManager, LogManager
-from .terminado_mini_server import TerminadoMiniServer
-from .terminal_commands import TerminalCommands

lib/tfw/components/frontend/__init__.py

@@ -0,0 +1,2 @@
+from .frontend_handler import FrontendHandler
+from .message_sender import MessageSender

lib/tfw/components/frontend/frontend_handler.py

@@ -1,8 +1,9 @@
-from tfw.networking import Scope
-from tfw.components import FrontendMessageStorage
+from tfw.internals.networking import Scope
+
+from .message_storage import FrontendMessageStorage
 
 
-class FrontendEventHandler:
+class FrontendHandler:
     keys = ['message', 'queueMessages', 'dashboard', 'console']
 
     def __init__(self):

lib/tfw/components/fsm/__init__.py

@@ -0,0 +1 @@
+from .fsm_handler import FSMHandler

lib/tfw/components/fsm/fsm_handler.py

@@ -1,14 +1,15 @@
 import logging
 
-from tfw.crypto import KeyManager, sign_message, verify_message
-from tfw.networking import Scope
-from tfw.components import FSMUpdater
+from tfw.internals.crypto import KeyManager, sign_message, verify_message
+from tfw.internals.networking import Scope
+
+from .fsm_updater import FSMUpdater
 
 
 LOG = logging.getLogger(__name__)
 
 
-class FSMManagingEventHandler:
+class FSMHandler:
     keys = ['fsm']
     """
     EventHandler responsible for managing the state machine of

lib/tfw/components/ide/__init__.py

@@ -0,0 +1 @@
+from .ide_handler import IdeHandler

lib/tfw/components/ide/ide_handler.py

@@ -1,8 +1,9 @@
 import logging
 
-from tfw.networking import Scope
-from tfw.components import FileManager
-from tfw.components.inotify import InotifyObserver
+from tfw.internals.networking import Scope
+from tfw.internals.inotify import InotifyObserver
+
+from .file_manager import FileManager
 
 
 LOG = logging.getLogger(__name__)
@@ -31,7 +32,7 @@ BUILD_ARTIFACTS = (
 )
 
 
-class IdeEventHandler:
+class IdeHandler:
     keys = ['ide']
     # pylint: disable=too-many-arguments,anomalous-backslash-in-string
     """

lib/tfw/components/pipe_io/__init__.py

@@ -0,0 +1 @@
+from .pipe_io_handler import PipeIOHandler, PipeIOHandlerBase, TransformerPipeIOHandler, CommandHandler

lib/tfw/components/pipe_io/pipe_io_handler.py

@@ -10,14 +10,14 @@ from secrets import token_urlsafe
 from threading import Thread
 from contextlib import suppress
 
-from tfw.components.pipe_io_server import PipeIOServer, terminate_process_on_failure
+from .pipe_io_server import PipeIOServer, terminate_process_on_failure
 
 
 LOG = logging.getLogger(__name__)
 DEFAULT_PERMISSIONS = 0o600
 
 
-class PipeIOEventHandlerBase:
+class PipeIOHandlerBase:
     keys = ['']
 
     def __init__(self, in_pipe_path, out_pipe_path, permissions=DEFAULT_PERMISSIONS):
@@ -50,7 +50,7 @@ class CallbackPipeIOServer(PipeIOServer):
             LOG.exception('Failed to handle message %s from pipe %s!', message, self.in_pipe)
 
 
-class PipeIOEventHandler(PipeIOEventHandlerBase):
+class PipeIOHandler(PipeIOHandlerBase):
     def handle_event(self, message, _):
         json_bytes = dumps(message).encode()
         self.pipe_io.send_message(json_bytes)
@@ -60,7 +60,7 @@ class PipeIOEventHandler(PipeIOEventHandlerBase):
         self.server_connector.send_message(json)
 
 
-class TransformerPipeIOEventHandler(PipeIOEventHandlerBase):
+class TransformerPipeIOHandler(PipeIOHandlerBase):
     # pylint: disable=too-many-arguments
     def __init__(
             self, in_pipe_path, out_pipe_path,
@@ -97,7 +97,7 @@ class TransformerPipeIOEventHandler(PipeIOEventHandlerBase):
             self.server_connector.send_message(json_message)
 
 
-class CommandEventHandler(PipeIOEventHandler):
+class CommandHandler(PipeIOHandler):
     def __init__(self, command, permissions=DEFAULT_PERMISSIONS):
         super().__init__(
             self._generate_tempfilename(),

lib/tfw/components/process_management/__init__.py

@@ -0,0 +1,2 @@
+from .process_handler import ProcessHandler
+from .process_log_handler import ProcessLogHandler

lib/tfw/components/process_management/log_inotify_observer.py

@@ -1,19 +1,19 @@
 import logging
 
-from tfw.networking import Scope
+from tfw.internals.networking import Scope
+from tfw.internals.inotify import InotifyObserver
 
-from .inotify import InotifyObserver
-from .supervisor import LogManager
+from .supervisor import ProcessLogManager
 
 
-class LogInotifyObserver(InotifyObserver, LogManager):
+class LogInotifyObserver(InotifyObserver, ProcessLogManager):
     def __init__(self, server_connector, supervisor_uri, process_name, log_tail=0):
         self._prevent_log_recursion()
         self._server_connector = server_connector
         self._process_name = process_name
         self.log_tail = log_tail
         self._procinfo = None
-        LogManager.__init__(self, supervisor_uri)
+        ProcessLogManager.__init__(self, supervisor_uri)
         InotifyObserver.__init__(self, self._get_logfiles())
 
     @staticmethod

lib/tfw/components/process_management/process_handler.py

@@ -1,14 +1,15 @@
 import logging
 from xmlrpc.client import Fault as SupervisorFault
 
-from tfw.networking import Scope
-from tfw.components import ProcessManager, LogManager
+from tfw.internals.networking import Scope
+
+from .supervisor import ProcessManager, ProcessLogManager
 
 
 LOG = logging.getLogger(__name__)
 
 
-class ProcessManagingEventHandler(ProcessManager, LogManager):
+class ProcessHandler(ProcessManager, ProcessLogManager):
     keys = ['processmanager']
     """
     Event handler that can manage processes managed by supervisor.
@@ -24,7 +25,7 @@ class ProcessManagingEventHandler(ProcessManager, LogManager):
     """
     def __init__(self, *, supervisor_uri, log_tail=0):
         ProcessManager.__init__(self, supervisor_uri)
-        LogManager.__init__(self, supervisor_uri)
+        ProcessLogManager.__init__(self, supervisor_uri)
         self.log_tail = log_tail
         self.commands = {
             'start': self.start_process,

lib/tfw/components/process_management/process_log_handler.py

@@ -1,12 +1,12 @@
 import logging
 
-from tfw.components import LogInotifyObserver
+from .log_inotify_observer import LogInotifyObserver
 
 
 LOG = logging.getLogger(__name__)
 
 
-class LogMonitoringEventHandler:
+class ProcessLogHandler:
     keys = ['logmonitor']
     """
     Monitors the output of a supervisor process (stdout, stderr) and

lib/tfw/components/process_management/supervisor.py

@@ -22,7 +22,7 @@ class ProcessManager(SupervisorBase):
         self.start_process(process_name)
 
 
-class LogManager(SupervisorBase):
+class ProcessLogManager(SupervisorBase):
     def read_stdout(self, process_name, tail=0):
         return self.supervisor.readProcessStdoutLog(process_name, -tail, 0)
 

lib/tfw/components/snapshots/__init__.py

@@ -0,0 +1 @@
+from .snapshot_handler import SnapshotHandler

lib/tfw/components/snapshots/snapshot_handler.py

@@ -6,14 +6,15 @@ from datetime import datetime
 
 from dateutil import parser as dateparser
 
-from tfw.components.snapshot_provider import SnapshotProvider
-from tfw.networking import Scope
+from tfw.internals.networking import Scope
+
+from .snapshot_provider import SnapshotProvider
 
 
 LOG = logging.getLogger(__name__)
 
 
-class DirectorySnapshottingEventHandler:
+class SnapshotHandler:
     keys = ['snapshot']
 
     def __init__(self, *, directories, snapshots_dir, exclude_unix_patterns=None):

lib/tfw/components/terminal/__init__.py

@@ -0,0 +1,3 @@
+from .terminal_handler import TerminalHandler
+from .terminal_commands_handler import TerminalCommandsHandler
+from .commands_equal import CommandsEqual

lib/tfw/components/terminal/commands_equal.py

@@ -1,7 +1,7 @@
 from shlex import split
 from re import search
 
-from tfw.decorators.lazy_property import lazy_property
+from tfw.internals.lazy import lazy_property
 
 
 class CommandsEqual:

lib/tfw/components/terminal/history_monitor.py

@@ -2,7 +2,7 @@ from re import findall
 from re import compile as compileregex
 from abc import ABC, abstractmethod
 
-from tfw.components.inotify import InotifyObserver
+from tfw.internals.inotify import InotifyObserver
 
 
 class HistoryMonitor(ABC, InotifyObserver):

lib/tfw/components/terminal/terminal_commands_handler.py

@@ -1,7 +1,7 @@
-from tfw.components import TerminalCommands
+from .terminal_commands import TerminalCommands
 
 
-class TerminalCommandsEventHandler(TerminalCommands):
+class TerminalCommandsHandler(TerminalCommands):
     keys = ['history.bash']
 
     def handle_event(self, message, _):

lib/tfw/components/terminal/terminal_handler.py

@@ -1,12 +1,13 @@
 import logging
 
-from tfw.components import BashMonitor, TerminadoMiniServer
+from .history_monitor import BashMonitor
+from .terminado_mini_server import TerminadoMiniServer
 
 
 LOG = logging.getLogger(__name__)
 
 
-class TerminalEventHandler:
+class TerminalHandler:
     keys = ['shell']
     """
     Event handler responsible for managing terminal sessions for frontend xterm

lib/tfw/event_handlers.py

@@ -0,0 +1,2 @@
+# pylint: disable=unused-import
+from tfw.internals.event_handling import EventHandler, FSMAwareEventHandler

lib/tfw/fsm/fsm_base.py

@@ -4,7 +4,7 @@ from datetime import datetime
 
 from transitions import Machine, MachineError
 
-from tfw.mixins.callback_mixin import CallbackMixin
+from tfw.internals.callback_mixin import CallbackMixin
 
 LOG = logging.getLogger(__name__)
 

lib/tfw/fsm/linear_fsm.py

@@ -1,6 +1,6 @@
 from transitions import State
 
-from tfw.fsm.fsm_base import FSMBase
+from .fsm_base import FSMBase
 
 
 class LinearFSM(FSMBase):

lib/tfw/fsm/yaml_fsm.py

@@ -6,7 +6,7 @@ import yaml
 import jinja2
 from transitions import State
 
-from tfw.fsm.fsm_base import FSMBase
+from .fsm_base import FSMBase
 
 
 class YamlFSM(FSMBase):

lib/tfw/internals/callback_mixin.py

@@ -1,6 +1,6 @@
 from functools import partial
 
-from tfw.decorators.lazy_property import lazy_property
+from .lazy import lazy_property
 
 
 class CallbackMixin:

lib/tfw/internals/crypto.py

@@ -11,8 +11,8 @@ from cryptography.hazmat.primitives.hashes import SHA256
 from cryptography.hazmat.primitives.hmac import HMAC as _HMAC
 from cryptography.exceptions import InvalidSignature
 
-from tfw.networking import message_bytes
-from tfw.decorators.lazy_property import lazy_property
+from tfw.internals.networking import message_bytes
+from tfw.internals.lazy import lazy_property
 from tfw.config import TFWENV
 
 

lib/tfw/internals/event_handling/fsm_aware.py

@@ -1,6 +1,6 @@
 import logging
 
-from tfw.crypto import KeyManager, verify_message
+from tfw.internals.crypto import KeyManager, verify_message
 
 LOG = logging.getLogger(__name__)
 

lib/tfw/internals/server/__init__.py

@@ -0,0 +1 @@
+from .zmq_websocket_router import ZMQWebSocketRouter

lib/tfw/internals/server/zmq_websocket_router.py

@@ -3,7 +3,7 @@ import logging
 
 from tornado.websocket import WebSocketHandler
 
-from tfw.networking import Scope
+from tfw.internals.networking import Scope
 
 LOG = logging.getLogger(__name__)
 

lib/tfw/logging.py

@@ -102,7 +102,7 @@ class LogFormatter(Formatter):
 
 
 class VerboseLogFormatter(Formatter):
-    def format(self, record):
+    def format(self, record):  # pylint: disable=no-self-use
         date = datetime.utcfromtimestamp(record.created).strftime('%H:%M:%S')
         if record.args:
             message = record.msg % record.args

lib/tfw/main/__init__.py

@@ -1,3 +1,4 @@
 from .tfw_connector import TFWUplinkConnector, TFWConnector
 from .event_handler_factory import EventHandlerFactory
 from .signal_handling import setup_signal_handlers
+from .tfw_server import TFWServer

lib/tfw/main/event_handler_factory.py

@@ -1,4 +1,4 @@
-from tfw.event_handlers import EventHandlerFactoryBase
+from tfw.internals.event_handling import EventHandlerFactoryBase
 
 from .tfw_connector import TFWConnector
 

lib/tfw/main/signal_handling.py

@@ -1,6 +1,6 @@
 from signal import signal, SIGTERM, SIGINT
 
-from tfw.event_handlers import EventHandler
+from tfw.internals.event_handling import EventHandler
 
 
 def setup_signal_handlers():

lib/tfw/main/tfw_connector.py

@@ -1,4 +1,4 @@
-from tfw.networking import ServerConnector, ServerUplinkConnector
+from tfw.internals.networking import ServerConnector, ServerUplinkConnector
 from tfw.config import TFWENV
 
 

lib/tfw/main/tfw_server.py

@@ -2,10 +2,10 @@ import logging
 
 from tornado.web import Application
 
-from tfw.networking import EventHandlerConnector
+from tfw.internals.networking import EventHandlerConnector
+from tfw.internals.server import ZMQWebSocketRouter
 from tfw.config import TFWENV
 
-from .zmq_websocket_router import ZMQWebSocketRouter
 
 LOG = logging.getLogger(__name__)
 

lib/tfw/server/__init__.py

@@ -1 +0,0 @@
-from .tfw_server import TFWServer

supervisor/tfw_server.py

@@ -2,7 +2,7 @@ from sys import stderr
 
 from tornado.ioloop import IOLoop
 
-from tfw.server import TFWServer
+from tfw.main import TFWServer
 from tfw.config import TFWENV
 from tfw.logging import Log, Logger, LogFormatter, VerboseLogFormatter