Source code for

"""Working directory helpers."""
import os
from contextlib import contextmanager

from .log_helper import ErrorLogger, is_loggable

[docs] @contextmanager def set_directory(path): """Sets the cwd within a context. Parameters ---------- path : Path Path to the desired cwd. Yields ------ None """ origin = os.getcwd() try: os.chdir(path) yield finally: os.chdir(origin)
[docs] def execute_in_cwd(func): """Decorator to execute method in given cwd of containing class. Parameters ---------- func : callable Method of a class. Returns ------- callable Wrapped function to be executed in cwd. Notes ----- The containing class of the given method needs to have a "cwd" property. """ def cwd_wrapper(self, *args, **kwargs): """Wrapper function.""" cwd = getattr(self, "cwd", None) with ErrorLogger(getattr(self, "logger", None), do_log=is_loggable(self)): if cwd is None: raise ValueError("No working directory given.") with set_directory(cwd): return func(self, *args, **kwargs) return cwd_wrapper