O script apresentado abaixo deve ser colocado em ~/.local/share/nautilus/scripts e as permissões alteradas para executável (via linha de comando com chmod +x ou através do clique com o botão direito do mouse no Nautilus). O script executa a desmontagem e a desativação de uma unidade para ejeção segura.
Também disponível em GitHub .
#!/usr/bin/env python3
# -*- coding: utf-8 -*-
import sys
import os
import subprocess
import urllib.parse
import dbus
def get_dbus( bus_type, obj, path, interface, method, arg):
""" utility: executes dbus method on specific interface"""
if bus_type == "session":
bus = dbus.SessionBus()
if bus_type == "system":
bus = dbus.SystemBus()
proxy = bus.get_object(obj, path)
method = proxy.get_dbus_method(method, interface)
if arg:
return method(arg)
else:
return method()
def get_dbus_property( bus_type, obj, path, iface, prop):
""" utility:reads properties defined on specific dbus interface"""
if bus_type == "session":
bus = dbus.SessionBus()
if bus_type == "system":
bus = dbus.SystemBus()
proxy = bus.get_object(obj, path)
aux = 'org.freedesktop.DBus.Properties'
props_iface = dbus.Interface(proxy, aux)
try:
props = props_iface.Get(iface, prop)
return props
except:
return None
def get_mountpoint(dev_path):
try:
contents = [
'system', 'org.freedesktop.UDisks2', dev_path,
'org.freedesktop.UDisks2.Filesystem', 'MountPoints'
]
data = get_dbus_property(*contents)[0]
except:
return None
else:
if len(data) > 0:
return ''.join([chr(byte) for byte in data])
def find_partition(selected):
contents = [
'system', 'org.freedesktop.UDisks2', '/org/freedesktop/UDisks2',
'org.freedesktop.DBus.ObjectManager', 'GetManagedObjects', None
]
objects = get_dbus(*contents)
for item in objects:
try:
if 'block_devices' in str(item):
mountpoint = get_mountpoint(item)
if not mountpoint:
continue
mountpoint = mountpoint.replace('\x00', '')
mp = str(type(mountpoint))
if selected == mountpoint:
return '/dev/' + item.split('/')[-1]
except Exception as e:
sys.stderr.write(e.__repr__())
subprocess.call(['zenity','--error','--text',str(e)])
def main():
uri = os.getenv("NAUTILUS_SCRIPT_SELECTED_URIS")
uri_decoded = urllib.parse.unquote(uri)
mountpath = uri_decoded.replace('file://','').strip()
part = find_partition(mountpath)
try:
unmount = ['udisksctl', 'unmount', '-b', part ]
subprocess.check_output(unmount, stderr=subprocess.STDOUT)
except subprocess.CalledProcessError as e:
subprocess.call([ 'zenity', '--error','--text', e.output.decode()])
# Try to power off the drive ( this is for ejecting USBs)
# If it's a hard-drive with more than one partition in use, disk
# won't power-off
try:
poweroff = ['udisksctl', 'power-off', '-b',part]
subprocess.check_output(poweroff, stderr=subprocess.STDOUT)
except subprocess.CalledProcessError as e:
pass
if __name__ == '__main__' :
try:
main()
except Exception as e:
sys.stderr.write(e)
subprocess.call(['zenity','--error','--text',str(e)])