[anaconda][master/rhel7-branch] [PATCH 1/3] Add dialog box to warn about formatting DASDs. (#1064423)

Vratislav Podzimek vpodzime at redhat.com
Tue Feb 25 12:02:17 UTC 2014


On Tue, 2014-02-25 at 04:30 -0500, Samantha N. Bueno wrote:
> A GtkDialog box which shows the progress of dasdfmt as it is run
> against unformatted DASDs.
> 
> Resolves: rhbz#1064423
> ---
>  po/POTFILES.in                             |   2 +
>  pyanaconda/ui/gui/spokes/lib/dasdfmt.glade | 211 +++++++++++++++++++++++++++++
>  pyanaconda/ui/gui/spokes/lib/dasdfmt.py    | 111 +++++++++++++++
>  3 files changed, 324 insertions(+)
>  create mode 100644 pyanaconda/ui/gui/spokes/lib/dasdfmt.glade
>  create mode 100644 pyanaconda/ui/gui/spokes/lib/dasdfmt.py

> diff --git a/pyanaconda/ui/gui/spokes/lib/dasdfmt.py b/pyanaconda/ui/gui/spokes/lib/dasdfmt.py
> new file mode 100644
> index 0000000..802855c
> --- /dev/null
> +++ b/pyanaconda/ui/gui/spokes/lib/dasdfmt.py
> @@ -0,0 +1,111 @@
> +# DASD format dialog
> +#
> +# Copyright (C) 2014  Red Hat, Inc.
> +#
> +# This copyrighted material is made available to anyone wishing to use,
> +# modify, copy, or redistribute it subject to the terms and conditions of
> +# the GNU General Public License v.2, or (at your option) any later version.
> +# This program is distributed in the hope that it will be useful, but WITHOUT
> +# ANY WARRANTY expressed or implied, including the implied warranties of
> +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
> +# Public License for more details.  You should have received a copy of the
> +# GNU General Public License along with this program; if not, write to the
> +# Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
> +# 02110-1301, USA.  Any Red Hat trademarks that are incorporated in the
> +# source code or documentation are not subject to the GNU General Public
> +# License and may only be used or replicated with the express permission of
> +# Red Hat, Inc.
> +#
> +# Red Hat Author(s): Samantha N. Bueno <sbueno at redhat.com>
> +#                    Chris Lumens <clumens at redhat.com>
> +#
> +
> +from pyanaconda.threads import threadMgr, AnacondaThread
> +from pyanaconda.ui.communication import hubQ
> +from pyanaconda.ui.gui import GUIObject
> +from pyanaconda.ui.gui.utils import gtk_call_once
> +from pyanaconda import constants
> +from pyanaconda.i18n import _
> +
> +from blivet import storageInitialize
> +from blivet.devicelibs.dasd import format_dasd
> +from blivet.errors import DasdFormatError
> +
> +import logging
> +log = logging.getLogger("anaconda")
> +
> +__all__ = ["DasdFormatDialog"]
> +
> +class DasdFormatDialog(GUIObject):
> +    builderObjects = ["unformattedDasdDialog"]
> +    mainWidgetName = "unformattedDasdDialog"
> +    uiFile = "spokes/lib/dasdfmt.glade"
> +
> +    def __init__(self, data, storage, to_format):
> +        GUIObject.__init__(self, data)
> +
> +        self.storage = storage
> +        self.to_format = to_format
> +
> +        self._notebook = self.builder.get_object("formatNotebook")
> +        self._cancel_button = self.builder.get_object("udCancelButton")
> +        self._ok_button = self.builder.get_object("udOKButton")
> +        self._label = self.builder.get_object("udLabel")
> +
> +    def run(self):
> +        rc = self.window.run()
> +        self.window.destroy()
> +        return rc
> +
> +    def run_dasdfmt(self, *args):
> +        """
> +        Loop through our disks and run dasdfmt against them. After that loop has
> +        finished, launch stage two of this operation (finish_dasdfmt).
> +        """
> +        for disk in self.to_format:
> +            try:
> +                self._label.set_text(_("Formatting /dev/%s. This may take a moment." % disk))
This shoudl be called with gtk_call_once as it is called from a non-main
thread.

> +                format_dasd(disk)
> +            except DasdFormatError as err:
> +                # Log errors if formatting fails, but don't halt the installer
> +                log.error(str(err))
> +                continue
> +
> +        gtk_call_once(self.finish_dasdfmt)
Should this be called even when the dialog is exited by clicking the
link button? If not, have a look at the NTPConfig dialog that uses an
epoch to discard outdated actions.

> +
> +    def dasdfmt(self, *args):
> +        """
> +        This is the handler that gets called from the GtkDialog and sets things
> +        in motion. We launch the *actual* call to run dasdfmt from a thread.
> +        """
> +        # Run through all of the formatting
> +        self._cancel_button.set_sensitive(True)
> +        self._ok_button.set_sensitive(False)
> +        self._notebook.set_current_page(0)
> +
> +        # Loop through all of our unformatted DASDs and format them
> +        threadMgr.add(AnacondaThread(name=constants.THREAD_DASDFMT,
> +                                     target=self.run_dasdfmt, args=(self,)))
> +
> +    def finish_dasdfmt(self):
> +        """
> +        This is the second stage of the dasdfmt operation; now that formatting
> +        is complete, we need to reinitialize storage so that the newly
> +        formatted devices are added properly to the devicetree.
> +        """
> +        protectedNames = map(lambda d: d.name, self.storage.protectedDevices)
> +        threadMgr.add(AnacondaThread(name=constants.THREAD_STORAGE, target=storageInitialize,
> +                                     args=(self.storage, self.data, protectedNames)))
I believe threadMgr.add returns the thread name (at least on master). So
you can store it and use it in the following wait call. Might make the
code a bit clearer.

> +
> +        threadMgr.wait(constants.THREAD_STORAGE)
> +        self._notebook.set_current_page(1)
> +        self._ok_button.set_sensitive(True)
> +
> +    def return_to_hub_link_clicked(self, label, uri):
> +        """
> +        The user clicked on the link that takes them back to the hub.  We need
> +        to emit a special response ID indicating the user did not press OK.
> +
> +        NOTE: There is no button with response_id=2.
> +        """
> +        self.window.response(2)

-- 
Vratislav Podzimek

Anaconda Rider | Red Hat, Inc. | Brno - Czech Republic



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