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Utility function to detect when running inside tmux

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Kovid Goyal 2022-06-29 17:48:58 +05:30
parent 4f8ef05058
commit 4f29dea8ef
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GPG Key ID: 06BC317B515ACE7C
1 changed files with 26 additions and 0 deletions
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kittens/tui/utils.py
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@ -1,10 +1,13 @@
#!/usr/bin/env python #!/usr/bin/env python
# License: GPLv3 Copyright: 2020, Kovid Goyal <kovid at kovidgoyal.net> # License: GPLv3 Copyright: 2020, Kovid Goyal <kovid at kovidgoyal.net>
import os
import sys import sys
from contextlib import suppress from contextlib import suppress
from typing import TYPE_CHECKING, Optional, Sequence, Tuple, cast from typing import TYPE_CHECKING, Optional, Sequence, Tuple, cast
from kitty.types import run_once
from .operations import raw_mode, set_cursor_visible from .operations import raw_mode, set_cursor_visible
if TYPE_CHECKING: if TYPE_CHECKING:
@ -97,3 +100,26 @@ def report_error(msg: str = '', return_code: int = 1, print_exc: bool = False) -
def report_unhandled_error(msg: str = '') -> None: def report_unhandled_error(msg: str = '') -> None:
' Report an unhandled exception with the overlay ready message ' ' Report an unhandled exception with the overlay ready message '
return report_error(msg, print_exc=True) return report_error(msg, print_exc=True)
@run_once
def running_in_tmux() -> str:
socket = os.environ.get('TMUX')
if not socket:
return ''
parts = socket.split(',')
if len(parts) < 2:
return ''
try:
if not os.access(parts[0], os.R_OK | os.W_OK):
return ''
except OSError:
return ''
from kitty.child import cmdline_of_pid
c = cmdline_of_pid(int(parts[1]))
if not c:
return ''
exe = os.path.basename(c[0])
if exe.lower() == 'tmux':
return exe
return ''