feat: add psagentai agent with deployment and configuration

Initial project setup including the main agent script, configuration files, profile JSON state, systemd service unit, startup script, deployment documentation, and Python dependencies. Includes .env, venv/, and __pycache__/ which should likely be excluded via .gitignore to avoid committing secrets and artifacts.
2026-10-25 17:05:13 -03:00
commit 6b3b6541a7
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+from __future__ import annotations
+
+from abc import abstractmethod
+from signal import Signals
+from typing import TYPE_CHECKING
+
+from ._resources import AsyncResource
+
+if TYPE_CHECKING:
+    from ._streams import ByteReceiveStream, ByteSendStream
+
+
+class Process(AsyncResource):
+    """An asynchronous version of :class:`subprocess.Popen`."""
+
+    @abstractmethod
+    async def wait(self) -> int:
+        """
+        Wait until the process exits.
+
+        :return: the exit code of the process
+        """
+
+    @abstractmethod
+    def terminate(self) -> None:
+        """
+        Terminates the process, gracefully if possible.
+
+        On Windows, this calls ``TerminateProcess()``.
+        On POSIX systems, this sends ``SIGTERM`` to the process.
+
+        .. seealso:: :meth:`subprocess.Popen.terminate`
+        """
+
+    @abstractmethod
+    def kill(self) -> None:
+        """
+        Kills the process.
+
+        On Windows, this calls ``TerminateProcess()``.
+        On POSIX systems, this sends ``SIGKILL`` to the process.
+
+        .. seealso:: :meth:`subprocess.Popen.kill`
+        """
+
+    @abstractmethod
+    def send_signal(self, signal: Signals) -> None:
+        """
+        Send a signal to the subprocess.
+
+        .. seealso:: :meth:`subprocess.Popen.send_signal`
+
+        :param signal: the signal number (e.g. :data:`signal.SIGHUP`)
+        """
+
+    @property
+    @abstractmethod
+    def pid(self) -> int:
+        """The process ID of the process."""
+
+    @property
+    @abstractmethod
+    def returncode(self) -> int | None:
+        """
+        The return code of the process. If the process has not yet terminated, this will
+        be ``None``.
+        """
+
+    @property
+    @abstractmethod
+    def stdin(self) -> ByteSendStream | None:
+        """The stream for the standard input of the process."""
+
+    @property
+    @abstractmethod
+    def stdout(self) -> ByteReceiveStream | None:
+        """The stream for the standard output of the process."""
+
+    @property
+    @abstractmethod
+    def stderr(self) -> ByteReceiveStream | None:
+        """The stream for the standard error output of the process."""