KDEAptDialogs.py 文件源码

def commit(self):
        # ui
        self.status.setText(_("Installing '%s'...") % os.path.basename(self.debfile))
        # the command
        cmd = "/usr/bin/dpkg"
        argv = [cmd, "--auto-deconfigure", "-i", self.debfile]
        (self.child_pid, self.master_fd) = pty.fork()

        if self.child_pid == 0:
            os.environ["TERM"] = "dumb"
            if not "DEBIAN_FRONTEND" in os.environ:
                os.environ["DEBIAN_FRONTEND"] = "noninteractive"
            os.environ["APT_LISTCHANGES_FRONTEND"] = "none"
            exitstatus = subprocess.call(argv)
            os._exit(exitstatus)

        while True:
            #Read from pty and write to DumbTerminal
            try:
                (rlist, wlist, xlist) = select.select([self.master_fd],[],[], 0.001)
                if len(rlist) > 0:
                    line = os.read(self.master_fd, 255)
                    self.parent.konsole.insertWithTermCodes(utf8(line))
            except Exception as e:
                #print e
                from errno import EAGAIN
                if hasattr(e, "errno") and e.errno == EAGAIN:
                    continue
                break
            KApplication.kApplication().processEvents()
        # at this point we got a read error from the pty, that most
        # likely means that the client is dead
        (pid, status) = os.waitpid(self.child_pid, 0)
        self.exitstatus = os.WEXITSTATUS(status)

        self.progress.setValue(100)
        self.parent.closeButton.setEnabled(True)
        self.parent.closeButton.setVisible(True)
        self.parent.installationProgress.setVisible(False)
        QTimer.singleShot(1, self.parent.changeSize)