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| | import asyncio
| | import json
| | import os
| | from typing import AsyncGenerator
| |
| | OPS_CLI = os.environ.get("OPS_CLI", "/opt/infrastructure/ops")
| | OFFSITE_PYTHON = os.environ.get("OFFSITE_PYTHON", "/opt/data/π/bin/python3")
| | OFFSITE_SCRIPT = os.environ.get("OFFSITE_SCRIPT", "/opt/data/scripts/offsite.py")
| |
| | _DEFAULT_TIMEOUT = 300
| | _BACKUP_TIMEOUT = 3600
| |
| |
| | async def run_ops(args: list[str], timeout: int = _DEFAULT_TIMEOUT) -> dict:
| | """
| | Run the ops CLI with the given arguments and capture output.
| | Returns {"success": bool, "output": str, "error": str}.
| | """
| | try:
| | proc = await asyncio.create_subprocess_exec(
| | OPS_CLI,
| | *args,
| | stdout=asyncio.subprocess.PIPE,
| | stderr=asyncio.subprocess.PIPE,
| | )
| | try:
| | stdout, stderr = await asyncio.wait_for(proc.communicate(), timeout=timeout)
| | except asyncio.TimeoutError:
| | proc.kill()
| | await proc.communicate()
| | return {
| | "success": False,
| | "output": "",
| | "error": f"Command timed out after {timeout}s",
| | }
| |
| | return {
| | "success": proc.returncode == 0,
| | "output": stdout.decode("utf-8", errors="replace"),
| | "error": stderr.decode("utf-8", errors="replace"),
| | }
| | except FileNotFoundError:
| | return {
| | "success": False,
| | "output": "",
| | "error": f"ops CLI not found at {OPS_CLI}",
| | }
| | except Exception as exc:
| | return {
| | "success": False,
| | "output": "",
| | "error": str(exc),
| | }
| |
| |
| | async def run_ops_json(args: list[str], timeout: int = _DEFAULT_TIMEOUT) -> dict:
| | """
| | Run the ops CLI with --json appended and return the parsed JSON output.
| | Returns {"success": bool, "data": ..., "error": str}.
| | """
| | result = await run_ops(args + ["--json"], timeout=timeout)
| | if not result["success"]:
| | return {"success": False, "data": None, "error": result["error"] or result["output"]}
| |
| | try:
| | data = json.loads(result["output"])
| | return {"success": True, "data": data, "error": ""}
| | except json.JSONDecodeError as exc:
| | return {
| | "success": False,
| | "data": None,
| | "error": f"Failed to parse JSON output: {exc}\nRaw output: {result['output'][:500]}",
| | }
| |
| |
| | async def stream_ops(args: list[str], timeout: int = _DEFAULT_TIMEOUT) -> AsyncGenerator[str, None]:
| | """
| | Async generator that yields lines of stdout from the ops CLI.
| | Also yields stderr lines prefixed with '[stderr] '.
| | """
| | try:
| | proc = await asyncio.create_subprocess_exec(
| | OPS_CLI,
| | *args,
| | stdout=asyncio.subprocess.PIPE,
| | stderr=asyncio.subprocess.PIPE,
| | )
| | except FileNotFoundError:
| | yield f"[error] ops CLI not found at {OPS_CLI}"
| | return
| | except Exception as exc:
| | yield f"[error] Failed to start process: {exc}"
| | return
| |
| | async def _read_stream(stream: asyncio.StreamReader, prefix: str = "") -> AsyncGenerator[str, None]:
| | while True:
| | try:
| | line = await asyncio.wait_for(stream.readline(), timeout=timeout)
| | except asyncio.TimeoutError:
| | yield f"{prefix}[timeout] Command exceeded {timeout}s"
| | break
| | if not line:
| | break
| | yield prefix + line.decode("utf-8", errors="replace").rstrip("\n")
| |
| | # Interleave stdout and stderr
| | stdout_gen = _read_stream(proc.stdout)
| | stderr_gen = _read_stream(proc.stderr, prefix="[stderr] ")
| |
| | stdout_done = False
| | stderr_done = False
| |
| | stdout_iter = stdout_gen.__aiter__()
| | stderr_iter = stderr_gen.__aiter__()
| |
| | pending_stdout: asyncio.Task | None = None
| | pending_stderr: asyncio.Task | None = None
| |
| | async def _next(it):
| | try:
| | return await it.__anext__()
| | except StopAsyncIteration:
| | return None
| |
| | pending_stdout = asyncio.create_task(_next(stdout_iter))
| | pending_stderr = asyncio.create_task(_next(stderr_iter))
| |
| | while not (stdout_done and stderr_done):
| | done, _ = await asyncio.wait(
| | [t for t in [pending_stdout, pending_stderr] if t is not None],
| | return_when=asyncio.FIRST_COMPLETED,
| | )
| |
| | for task in done:
| | val = task.result()
| | if task is pending_stdout:
| | if val is None:
| | stdout_done = True
| | pending_stdout = None
| | else:
| | yield val
| | pending_stdout = asyncio.create_task(_next(stdout_iter))
| | elif task is pending_stderr:
| | if val is None:
| | stderr_done = True
| | pending_stderr = None
| | else:
| | yield val
| | pending_stderr = asyncio.create_task(_next(stderr_iter))
| |
| | await proc.wait()
| |
| |
| | async def run_command(
| | args: list[str], timeout: int = _DEFAULT_TIMEOUT
| | ) -> dict:
| | """
| | Generic command runner (non-ops). Accepts a full argv list.
| | Returns {"success": bool, "output": str, "error": str}.
| | """
| | try:
| | proc = await asyncio.create_subprocess_exec(
| | *args,
| | stdout=asyncio.subprocess.PIPE,
| | stderr=asyncio.subprocess.PIPE,
| | )
| | try:
| | stdout, stderr = await asyncio.wait_for(proc.communicate(), timeout=timeout)
| | except asyncio.TimeoutError:
| | proc.kill()
| | await proc.communicate()
| | return {
| | "success": False,
| | "output": "",
| | "error": f"Command timed out after {timeout}s",
| | }
| |
| | return {
| | "success": proc.returncode == 0,
| | "output": stdout.decode("utf-8", errors="replace"),
| | "error": stderr.decode("utf-8", errors="replace"),
| | }
| | except FileNotFoundError as exc:
| | return {"success": False, "output": "", "error": f"Executable not found: {exc}"}
| | except Exception as exc:
| | return {"success": False, "output": "", "error": str(exc)}
| |
| |
| | async def stream_command(
| | args: list[str], timeout: int = _DEFAULT_TIMEOUT
| | ) -> AsyncGenerator[str, None]:
| | """
| | Async generator that yields lines of stdout for an arbitrary command.
| | """
| | try:
| | proc = await asyncio.create_subprocess_exec(
| | *args,
| | stdout=asyncio.subprocess.PIPE,
| | stderr=asyncio.subprocess.PIPE,
| | )
| | except FileNotFoundError as exc:
| | yield f"[error] Executable not found: {exc}"
| | return
| | except Exception as exc:
| | yield f"[error] {exc}"
| | return
| |
| | while True:
| | try:
| | line = await asyncio.wait_for(proc.stdout.readline(), timeout=timeout)
| | except asyncio.TimeoutError:
| | yield f"[timeout] Command exceeded {timeout}s"
| | proc.kill()
| | break
| | if not line:
| | break
| | yield line.decode("utf-8", errors="replace").rstrip("\n")
| |
| | # Flush stderr as trailing info
| | stderr_data = await proc.stderr.read()
| | if stderr_data:
| | for ln in stderr_data.decode("utf-8", errors="replace").splitlines():
| | yield f"[stderr] {ln}"
| |
| | await proc.wait()
|
|
