[utils] Fix bug in 0b9c08b47b

* Cache of `supports_terminal_sequences` must be reset after enabling VT mode
* and move `windows_enable_vt_mode` to utils to avoid cyclic imports
This commit is contained in:
pukkandan
2022-05-20 03:02:25 +05:30
parent b801cd7179
commit 53973b4d2c
4 changed files with 27 additions and 19 deletions

View File

@@ -5094,10 +5094,12 @@ def jwt_decode_hs256(jwt):
return payload_data
WINDOWS_VT_MODE = False if compat_os_name == 'nt' else None
@functools.cache
def supports_terminal_sequences(stream):
if compat_os_name == 'nt':
from .compat import WINDOWS_VT_MODE # Must be imported locally
if not WINDOWS_VT_MODE or get_windows_version() < (10, 0, 10586):
return False
elif not os.getenv('TERM'):
@@ -5108,6 +5110,21 @@ def supports_terminal_sequences(stream):
return False
def windows_enable_vt_mode(): # TODO: Do this the proper way https://bugs.python.org/issue30075
if compat_os_name != 'nt':
return
global WINDOWS_VT_MODE
startupinfo = subprocess.STARTUPINFO()
startupinfo.dwFlags |= subprocess.STARTF_USESHOWWINDOW
try:
subprocess.Popen('', shell=True, startupinfo=startupinfo).wait()
except Exception:
return
WINDOWS_VT_MODE = True
supports_terminal_sequences.cache_clear()
_terminal_sequences_re = re.compile('\033\\[[^m]+m')