/usr/share/weechat/python/tmux_env.py is in weechat-scripts 20180330-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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tmux_env.py -- update weechat environment from tmux
Copyright 2013 Aron Griffis <agriffis@n01se.net>
Released under the terms of the GNU General Public License v3
Description:
This script propagates environment updates from tmux into the weechat
process, including the script interpreters. This allows the process
environment to follow the tmux client, such as the X DISPLAY variable,
and the DBUS_SESSION_BUS_ADDRESS used for desktop notifications.
See https://github.com/agriffis/weechat-tmux-env for full usage
instructions.
History:
2013-09-30 Aron Griffis <agriffis@n01se.net>
version 1: initial release
2014-02-03 Aron Griffis <agriffis@n01se.net>
version 2: python 2.6 compatible subprocess.check_output()
"""
from __future__ import absolute_import, unicode_literals
import fnmatch
import os
import subprocess
if not hasattr(subprocess, 'check_output'):
def check_output(*popenargs, **kwargs):
process = subprocess.Popen(stdout=subprocess.PIPE, *popenargs, **kwargs)
output, unused_err = process.communicate()
retcode = process.poll()
if retcode:
cmd = kwargs.get("args")
if cmd is None:
cmd = popenargs[0]
raise subprocess.CalledProcessError(retcode, cmd)
return output
subprocess.check_output = check_output
del check_output
import weechat as w
SCRIPT_NAME = "tmux_env"
SCRIPT_AUTHOR = "Aron Griffis <agriffis@n01se.net>"
SCRIPT_VERSION = "2"
SCRIPT_LICENSE = "GPL3"
SCRIPT_DESC = "Update weechat environment from tmux"
settings = {
'interval': '30', # How often in seconds to check for updates
# For include/exclude, the bare variable name only refers to
# environment updates, not removals. For removals, include the variable
# name prefixed by a minus sign. For example, to add/remove exclusively
# the DISPLAY variable, include="DISPLAY,-DISPLAY"
#
# Globs are also accepted, so you can ignore all variable removals with
# exclude="-*"
'include': '*,-*', # Env vars to include, default all
'exclude': '', # Env vars to exclude, default all
}
TIMER = None
def set_timer():
"""Update timer hook with new interval"""
global TIMER
if TIMER:
w.unhook(TIMER)
TIMER = w.hook_timer(int(w.config_get_plugin('interval')) * 1000,
0, 0, 'timer_cb', '')
def config_cb(data, option, value):
"""Reset timer when interval option is updated"""
if option.endswith('.interval'):
set_timer()
return w.WEECHAT_RC_OK
def timer_cb(buffer, args):
"""Check if tmux is attached, update environment"""
attached = os.access(SOCK, os.X_OK) # X bit indicates attached
if attached:
update_environment()
return w.WEECHAT_RC_OK
def update_environment():
"""Updates environment from tmux showenv"""
env = subprocess.check_output(['tmux', 'showenv'])
for line in env.splitlines():
name = line.split('=', 1)[0]
if check_include(name) and not check_exclude(name):
if name.startswith('-'):
remove_env(name[1:])
else:
add_env(name, line.split('=', 1)[1])
def check_include(name):
globs = comma_split_config('include')
return check_match(name, globs)
def check_exclude(name):
globs = comma_split_config('exclude')
return check_match(name, globs)
def check_match(name, globs):
for g in globs:
if fnmatch.fnmatch(name, g):
return True
def comma_split_config(name):
config = w.config_get_plugin(name)
return filter(None, (s.strip() for s in config.split(',')))
def add_env(name, value):
old = os.environ.get(name)
if old != value:
w.prnt("", "%s: add %s=%r (was %r)" % (SCRIPT_NAME, name, value, old))
os.environ[name] = value
def remove_env(name):
old = os.environ.get(name)
if old is not None:
w.prnt("", "%s: remove %s (was %r)" % (SCRIPT_NAME, name, old))
del os.environ[name]
if w.register(SCRIPT_NAME, SCRIPT_AUTHOR, SCRIPT_VERSION, SCRIPT_LICENSE,
SCRIPT_DESC, '', ''):
for option, default_value in settings.iteritems():
if not w.config_is_set_plugin(option):
w.config_set_plugin(option, default_value)
global SOCK
SOCK = None
if 'TMUX' in os.environ.keys():
# We are running under tmux
socket_data = os.environ['TMUX']
SOCK = socket_data.rsplit(',',2)[0]
if SOCK:
w.hook_config("plugins.var.python." + SCRIPT_NAME + ".*",
"config_cb", "")
set_timer()
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