gnome-shell/scripts/start-replace
Mikkel Kamstrup Erlandsen 0f966eabbf Autodetect where the 'pidof' command lives and enable optional verbose logging inside start-replace
scripts/start-replace: Detect if 'pidof' lives in /sbin, /bin, or /usr/bin. Add conditional verbose logging if -v is passed on the command line
scripts/launcher.py: Add method is_verbose() to Launcher class

svn path=/trunk/; revision=31
2008-11-04 22:40:52 +00:00

62 lines
1.8 KiB
Python
Executable File

#!/usr/bin/python
import os
import subprocess
import signal
from launcher import Launcher
launcher = Launcher()
def find_cmd (cmd_list):
"""
Takes a list of command candidates and returns the first one that exists.
Raises a system exit if none of the commands exist.
"""
for cmd in cmd_list:
if os.path.exists(cmd):
return cmd
raise SystemExit("None of the commands %s exist" % cmd_list)
try:
# Kill gnome-panel in a way that it won't autorespawn
pidof_cmd = find_cmd(["/sbin/pidof", "/bin/pidof", "/usr/bin/pidof"])
pidof = subprocess.Popen([pidof_cmd, "gnome-panel"], stdout=subprocess.PIPE)
pids = pidof.communicate()[0].split()
pidof.wait()
devnull = open("/dev/null", "w")
for pid in pids:
if launcher.is_verbose():
print "Terminating panel process %s" % pid
subprocess.call(["gdb", "-batch-silent",
"-ex", "call panel_session_do_not_restart()",
"-ex", "call exit(0)",
"-p", pid], stdout=devnull, stderr=devnull)
devnull.close()
if launcher.is_verbose():
print "Starting shell"
shell = launcher.start_shell()
# Wait for shell to exit
try:
if launcher.is_verbose():
print "Waiting for shell to exit"
shell.wait()
if launcher.is_verbose():
print "Shell is dead"
except KeyboardInterrupt, e:
os.kill(shell.pid, signal.SIGKILL)
shell.wait()
if launcher.is_verbose():
print "Shell killed"
finally:
# Restart gnome-panel and window manager
if launcher.is_verbose():
print "Restarting Metacity and Gnome Panel"
subprocess.Popen(["/usr/bin/metacity"])
subprocess.Popen(["/usr/bin/gnome-panel"])