mirror of
https://github.com/xonsh/xonsh.git
synced 2025-03-04 08:24:40 +01:00
96 lines
3.3 KiB
Python
96 lines
3.3 KiB
Python
""" This will release the lock on the current directory whenever the
|
|
prompt is shown. Enabling this will allow other programs or
|
|
Windows Explorer to delete or rename the current or parent
|
|
directories. Internally, it is accomplished by temporarily resetting
|
|
CWD to the root drive folder while waiting at the prompt. This only
|
|
works with the prompt_toolkit backend and can cause cause issues
|
|
if any extensions are enabled that hook the prompt and relies on
|
|
``os.getcwd()``.
|
|
"""
|
|
import os
|
|
import builtins
|
|
import functools
|
|
from pathlib import Path
|
|
|
|
from xonsh.tools import print_exception
|
|
from xonsh.platform import ON_WINDOWS, ON_CYGWIN, ON_MSYS
|
|
|
|
|
|
def _chdir_up(path):
|
|
""" Change directory to path or if path does not exist
|
|
the first valid parent.
|
|
"""
|
|
path = Path(path)
|
|
try:
|
|
os.chdir(path)
|
|
return path
|
|
except (FileNotFoundError, NotADirectoryError):
|
|
path.resolve()
|
|
return _chdir_up(path.parent)
|
|
|
|
|
|
def _cwd_release_wrapper(func):
|
|
""" Decorator for Windows to wrap the prompt function and release
|
|
the process lock on the current directory while the prompt is
|
|
displayed. This works by temporarily setting
|
|
the workdir to the users home directory.
|
|
"""
|
|
env = builtins.__xonsh_env__
|
|
if env.get('UPDATE_PROMPT_ON_KEYPRESS'):
|
|
return func if not hasattr(func, '_orgfunc') else func._orgfunc
|
|
|
|
if hasattr(func, '_orgfunc'):
|
|
# Already wrapped
|
|
return func
|
|
else:
|
|
@functools.wraps(func)
|
|
def wrapper(*args, **kwargs):
|
|
anchor = Path(os.getcwd()).anchor
|
|
os.chdir(anchor)
|
|
try:
|
|
out = func(*args, **kwargs)
|
|
finally:
|
|
try:
|
|
pwd = env.get('PWD', anchor)
|
|
os.chdir(pwd)
|
|
except (FileNotFoundError, NotADirectoryError):
|
|
print_exception()
|
|
newpath = _chdir_up(pwd)
|
|
builtins.__xonsh_env__['PWD'] = newpath
|
|
raise KeyboardInterrupt
|
|
return out
|
|
wrapper._orgfunc = func
|
|
return wrapper
|
|
|
|
|
|
def _cwd_restore_wrapper(func):
|
|
""" Decorator for Windows which will temporary restore the true working
|
|
directory. Designed to wrap completer callbacks from the
|
|
prompt_toolkit or readline.
|
|
"""
|
|
env = builtins.__xonsh_env__
|
|
if env.get('UPDATE_PROMPT_ON_KEYPRESS'):
|
|
return func if not hasattr(func, '_orgfunc') else func._orgfunc
|
|
|
|
if hasattr(func, '_orgfunc'):
|
|
# Already wrapped
|
|
return func
|
|
else:
|
|
@functools.wraps(func)
|
|
def wrapper(*args, **kwargs):
|
|
workdir = os.getcwd()
|
|
_chdir_up(env.get('PWD', workdir))
|
|
out = func(*args, **kwargs)
|
|
_chdir_up(workdir)
|
|
return out
|
|
wrapper._orgfunc = func
|
|
return wrapper
|
|
|
|
|
|
@events.on_ptk_create
|
|
def setup_release_cwd_hook(prompter, history, completer, bindings, **kw):
|
|
if ON_WINDOWS and not ON_CYGWIN and not ON_MSYS:
|
|
prompter.prompt = _cwd_release_wrapper(prompter.prompt)
|
|
if completer.completer:
|
|
# Temporarily restore cwd for callbacks to the completer
|
|
completer.completer.complete = _cwd_restore_wrapper(completer.completer.complete)
|