75 lines
1.9 KiB
Python
75 lines
1.9 KiB
Python
"""Central Rich output helpers.
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Opinionated: `rich` is a required dependency.
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This module centralizes Console instances so tables/panels render consistently and
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so callers can choose stdout vs stderr explicitly (important for pipeline-safe
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output).
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"""
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from __future__ import annotations
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import contextlib
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import sys
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from typing import Any, Iterator, TextIO
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from rich.console import Console
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# Configure Rich pretty-printing to avoid truncating long strings (hashes/paths).
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# This is version-safe: older Rich versions may not support the max_* arguments.
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try:
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from rich.pretty import install as _pretty_install
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try:
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_pretty_install(max_string=100_000, max_length=100_000)
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except TypeError:
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_pretty_install()
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except Exception:
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pass
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_STDOUT_CONSOLE = Console(file=sys.stdout)
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_STDERR_CONSOLE = Console(file=sys.stderr)
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def stdout_console() -> Console:
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return _STDOUT_CONSOLE
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def stderr_console() -> Console:
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return _STDERR_CONSOLE
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def console_for(file: TextIO | None) -> Console:
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if file is None or file is sys.stdout:
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return _STDOUT_CONSOLE
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if file is sys.stderr:
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return _STDERR_CONSOLE
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return Console(file=file)
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def rprint(renderable: Any = "", *, file: TextIO | None = None) -> None:
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console_for(file).print(renderable)
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@contextlib.contextmanager
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def capture_rich_output(*, stdout: TextIO, stderr: TextIO) -> Iterator[None]:
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"""Temporarily redirect Rich output helpers to provided streams.
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Note: `stdout_console()` / `stderr_console()` use global Console instances,
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so `contextlib.redirect_stdout` alone will not capture Rich output.
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"""
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global _STDOUT_CONSOLE, _STDERR_CONSOLE
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previous_stdout = _STDOUT_CONSOLE
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previous_stderr = _STDERR_CONSOLE
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try:
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_STDOUT_CONSOLE = Console(file=stdout)
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_STDERR_CONSOLE = Console(file=stderr)
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yield
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finally:
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_STDOUT_CONSOLE = previous_stdout
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_STDERR_CONSOLE = previous_stderr
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