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"""
This plugin lets you execute a system command through poezio.
Installation
------------
You only have to load the plugin. ::
/load exec
Usage
-----
.. warning:: Running commands that start a daemon or an interface is not a good
idea.
.. glossary::
/exec
**Usage:** ``/exec [-o|-O] <command>``
Execute a system command.
::
/exec command
Will give you the result in the information buffer.
::
/exec -o command
Will send the result of the command into the current tab, if possible.
::
/exec -O command
Will send the result of the command and the command summary into the current
tab, if possible.
"""
from plugin import BasePlugin
import os
import common
import shlex
import subprocess
class Plugin(BasePlugin):
def init(self):
self.api.add_command('exec', self.command_exec,
usage='[-o|-O] <command>',
help='Execute a shell command and prints the result in the information buffer. The command should be ONE argument, that means it should be between \"\". The first argument (before the command) can be -o or -O. If -o is specified, it sends the result in the current conversation. If -O is specified, it sends the command and its result in the current conversation.\nExample: /exec -O \"uptime\" will send “uptime\n20:36:19 up 3:47, 4 users, load average: 0.09, 0.13, 0.09” in the current conversation.',
short='Execute a command')
def command_exec(self, args):
args = common.shell_split(args)
if len(args) == 1:
command = args[0]
arg = None
elif len(args) == 2:
command = args[1]
arg = args[0]
else:
self.api.run_command('/help exec')
return
try:
process = subprocess.Popen(['sh', '-c', command], stdout=subprocess.PIPE)
except OSError as e:
self.api.information('Failed to execute command: %s' % (e,), 'Error')
return
result = process.communicate()[0].decode('utf-8')
if arg and arg == '-o':
if not self.api.send_message('%s' % (result,)):
self.api.information('Cannot send result (%s), this is not a conversation tab' % result)
elif arg and arg == '-O':
if not self.api.send_message('%s:\n%s' % (command, result)):
self.api.information('Cannot send result (%s), this is not a conversation tab' % result)
else:
self.api.information('%s:\n%s' % (command, result), 'Info')
return
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