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#!/usr/bin/python
# example how to install in a custom terminal widget
# see also gnome bug: #169201
import apt
import apt_pkg
import sys, os, fcntl
import copy
import string
import fcntl
import pygtk
pygtk.require('2.0')
import gtk
import vte
import time
import posix
from apt.progress import OpProgress, FetchProgress, InstallProgress
class GuiFetchProgress(gtk.Window, FetchProgress):
def __init__(self):
gtk.Window.__init__(self)
self.vbox = gtk.VBox()
self.vbox.show()
self.add(self.vbox)
self.progress = gtk.ProgressBar()
self.progress.show()
self.label = gtk.Label()
self.label.show()
self.vbox.pack_start(self.progress)
self.vbox.pack_start(self.label)
self.resize(300,100)
def start(self):
print "start"
self.progress.set_fraction(0.0)
self.show()
def stop(self):
self.hide()
def pulse(self):
FetchProgress.pulse(self)
self.label.set_text("Speed: %s/s" % apt_pkg.SizeToStr(self.currentCPS))
#self.progressbar.set_fraction(self.currentBytes/self.totalBytes)
while gtk.events_pending():
gtk.main_iteration()
return True
class TermInstallProgress(InstallProgress, gtk.Window):
def __init__(self):
gtk.Window.__init__(self)
self.show()
box = gtk.VBox()
box.show()
self.add(box)
self.term = vte.Terminal()
self.term.show()
# check for the child
self.reaper = vte.reaper_get()
self.reaper.connect("child-exited",self.child_exited)
self.finished = False
box.pack_start(self.term)
self.progressbar = gtk.ProgressBar()
self.progressbar.show()
box.pack_start(self.progressbar)
(read, write) = os.pipe()
self.writefd=write
self.status = os.fdopen(read, "r")
fcntl.fcntl(self.status.fileno(), fcntl.F_SETFL,os.O_NONBLOCK)
print "read-fd: %s" % self.status.fileno()
print "write-fd: %s" % self.writefd
self.read = ""
def child_exited(self,term, pid, status):
print "child_exited: %s %s %s %s" % (self,term,pid,status)
self.apt_status = posix.WEXITSTATUS(status)
self.finished = True
def startUpdate(self):
print "start"
self.show()
def updateInterface(self):
if self.status != None:
try:
self.read += os.read(self.status.fileno(),1)
except OSError, (errno,errstr):
# resource temporarly unavailable is ignored
if errno != 11:
print errstr
if self.read.endswith("\n"):
s = self.read
print s
(status, pkg, percent, status_str) = string.split(s, ":")
print "percent: %s %s" % (pkg, float(percent)/100.0)
self.progressbar.set_fraction(float(percent)/100.0)
self.progressbar.set_text(string.strip(status_str))
self.read = ""
while gtk.events_pending():
gtk.main_iteration()
def finishUpdate(self):
sys.stdin.readline()
def run(self, pm):
print "fork"
env = ["VTE_PTY_KEEP_FD=%s"%self.writefd]
print env
pid = self.term.forkpty(envv=env)
if pid == 0:
res = pm.DoInstall(self.writefd)
print res
sys.exit(res)
print "After fork: %s " % pid
while not self.finished:
self.updateInterface()
return self.apt_status
cache = apt.Cache()
print "Available packages: %s " % cache._cache.PackageCount
# update the cache
fprogress = GuiFetchProgress()
iprogress = TermInstallProgress()
# update the cache
#cache.Update(fprogress)
#cache = apt_pkg.GetCache(progress)
#depcache = apt_pkg.GetDepCache(cache)
#depcache.ReadPinFile()
#depcache.Init(progress)
# show the interface
while gtk.events_pending():
gtk.main_iteration()
pkg = cache["3dchess"]
print "\n%s"%pkg.name
# install or remove, the importend thing is to keep us busy :)
if pkg.isInstalled:
pkg.markDelete()
else:
pkg.markInstall()
cache.commit(fprogress, iprogress)
print "Exiting"
sys.exit(0)
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