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# Tested with ranger 1.7.0 through ranger 1.7.*
#
# This plugin creates a FIFO in /tmp/ranger-ipc.<PID> to which any
# other program may write. Lines written to this file are evaluated by
# ranger as the ranger :commands.
#
# Example:
# $ echo tab_new ~/images > /tmp/ranger-ipc.1234
from __future__ import (absolute_import, division, print_function)
import ranger.api
HOOK_INIT_OLD = ranger.api.hook_init
def hook_init(fm):
try:
# Create a FIFO.
import os
ipc_fifo = "/tmp/ranger-ipc." + str(os.getpid())
os.mkfifo(ipc_fifo)
# Start the reader thread.
try:
import thread
except ImportError:
import _thread as thread
def ipc_reader(filepath):
while True:
# The IPC encoding depends on the system locale so we can't
# guess here.
# pylint: disable=unspecified-encoding
with open(filepath, 'r') as fifo:
line = fifo.read()
fm.execute_console(line.strip())
thread.start_new_thread(ipc_reader, (ipc_fifo,))
# Remove the FIFO on ranger exit.
def ipc_cleanup(filepath):
try:
os.unlink(filepath)
except IOError:
pass
import atexit
atexit.register(ipc_cleanup, ipc_fifo)
except IOError:
# IPC support disabled
pass
finally:
HOOK_INIT_OLD(fm)
ranger.api.hook_init = hook_init
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