김경종
42 lines
1.7 KiB
Python
42 lines
1.7 KiB
Python
import re
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import shutil
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import subprocess
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import time
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from pathlib import Path
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from .models import Toolchain
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class ToolchainError(RuntimeError):
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pass
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def _decode(value):
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return value if isinstance(value, str) else (value or b"").decode("utf-8", errors="replace")
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def discover_toolchain(root: Path, *, which=shutil.which, run=subprocess.run, deadline=None, clock=time.monotonic) -> Toolchain:
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root = root.resolve()
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executable = which("dotnet")
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if executable is None or not Path(executable).is_file():
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raise ToolchainError("dotnet not found; install .NET SDK 8 and check PATH and global.json")
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executable = Path(executable).resolve()
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argv = [str(executable), "--version"]
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context = f"argv={argv!r}; cwd={str(root)!r}; check .NET SDK 8 and global.json"
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timeout = 1800 if deadline is None else min(1800, deadline - clock())
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if timeout <= 0:
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raise ToolchainError(f"SDK probe timed out before it could start; {context}")
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try:
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result = run(argv, cwd=root, capture_output=True, check=False, shell=False, timeout=timeout)
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except subprocess.TimeoutExpired as exc:
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raise ToolchainError(f"SDK probe timed out; {context}") from exc
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except OSError as exc:
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raise ToolchainError(f"SDK probe could not start: {exc}; {context}") from exc
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if result.returncode != 0:
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diagnostic = (_decode(result.stdout) + "\n" + _decode(result.stderr)).strip()[-8000:]
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raise ToolchainError(f"SDK probe failed with exit code {result.returncode}; {context}; output tail: {diagnostic}")
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version = _decode(result.stdout).strip()
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if not re.fullmatch(r"8\.0\.\d+", version):
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raise ToolchainError(f"expected stable .NET SDK 8, got {version!r}; {context}")
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return Toolchain(executable, version)
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