8552c559d3
Servers started via the web UI now create a WantedBy= symlink under multi-user.target.wants/, so they auto-start on the next host reboot. Helper verbs renamed start/stop -> enable/disable; service_control.py renamed start_service/stop_service -> enable_service/disable_service. The user-facing l4d2ctl start/stop commands keep their names per the AGENTS.md contract -- only the implementation changes. Spec: docs/superpowers/specs/2026-05-09-l4d2-server-lifecycle-reboot-and-drift-design.md Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
85 lines
2.5 KiB
Python
85 lines
2.5 KiB
Python
import subprocess
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from typing import Callable, Iterator, Sequence
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from l4d2host.process import CommandResult, run_command
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SYSTEMCTL_HELPER = "/usr/local/libexec/left4me/left4me-systemctl"
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JOURNALCTL_HELPER = "/usr/local/libexec/left4me/left4me-journalctl"
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def systemctl_command(action: str, name: str) -> list[str]:
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return ["sudo", "-n", SYSTEMCTL_HELPER, action, name]
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def journalctl_command(name: str, lines: int = 200, follow: bool = True) -> list[str]:
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follow_arg = "--follow" if follow else "--no-follow"
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return ["sudo", "-n", JOURNALCTL_HELPER, name, "--lines", str(lines), follow_arg]
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def enable_service(
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name: str,
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*,
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on_stdout: Callable[[str], None] | None = None,
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on_stderr: Callable[[str], None] | None = None,
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passthrough: bool = False,
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should_cancel: Callable[[], bool] | None = None,
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) -> CommandResult:
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return run_command(
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systemctl_command("enable", name),
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on_stdout=on_stdout,
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on_stderr=on_stderr,
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passthrough=passthrough,
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should_cancel=should_cancel,
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)
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def disable_service(
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name: str,
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*,
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on_stdout: Callable[[str], None] | None = None,
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on_stderr: Callable[[str], None] | None = None,
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passthrough: bool = False,
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should_cancel: Callable[[], bool] | None = None,
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) -> CommandResult:
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return run_command(
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systemctl_command("disable", name),
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on_stdout=on_stdout,
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on_stderr=on_stderr,
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passthrough=passthrough,
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should_cancel=should_cancel,
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)
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def show_service(name: str) -> CommandResult:
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return run_command(systemctl_command("show", name))
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def stream_command(cmd: Sequence[str]) -> Iterator[str]:
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command = list(cmd)
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proc = subprocess.Popen(
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command,
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE,
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text=True,
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bufsize=1,
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)
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try:
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if proc.stdout is None:
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return
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for raw in iter(proc.stdout.readline, ""):
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yield raw.rstrip("\n")
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returncode = proc.wait()
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if returncode is None:
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returncode = proc.poll()
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stderr = proc.stderr.read() if proc.stderr is not None else ""
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if returncode:
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raise subprocess.CalledProcessError(returncode=returncode, cmd=command, stderr=stderr)
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finally:
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if proc.poll() is None:
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proc.terminate()
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proc.wait(timeout=2)
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def stream_journal(name: str, *, lines: int = 200, follow: bool = True) -> Iterator[str]:
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return stream_command(journalctl_command(name, lines=lines, follow=follow))
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