Chip 2007 January, February, March & April/Chip-Cover-CD-2007-02.iso/boot/i386/root/usr/share/YaST2/clients/inst_backup.ycp

Text File | 2006-11-29 | 5.2 KB | 187 lines

/**
 * Module:     inst_backup.ycp
 *
 * Authors:    Stefan Schubert <[e-mail]>
 *        Arvin Schnell <[e-mail]>
 *
 * Purpose:    Ask the user for backups during the update.
 *
 * $Id: inst_backup.ycp 33392 2006-10-13 11:39:53Z locilka $
 */

{
    textdomain "update";

    import "Mode";
    import "Update";
    import "SpaceCalculation";
    import "Wizard";
    import "Popup";


    //
    // Check, if the backup fits to disk
    //

    define boolean check_backup_path (list<map> part_info)
    {
    string backup_path = Update::backup_path;
    integer min_space = 50;

    boolean found = false;
    integer free_space = 0;

    if ( size ( backup_path ) <= 1 ||
         substring(backup_path,0,1) != "/" )
    {
        // error popup, user did not enter a valid directory specification
        Popup::Message( _("Invalid backup path.") );
        return false;
    }

    foreach( map part, part_info, {

        string part_name = part["name"]:"";

        if ( part_name == "/" && !found )
        {
        free_space = part["free"]:0;
        y2milestone("Partition :%1", part_name);
        y2milestone("free:%1", free_space );
        }

        if ( size ( backup_path ) >= 2 && part_name != "/")
        {
        string compare_string = substring ( backup_path, 0 , size ( part_name ) );
        if (compare_string == part_name && !found)
        {
            free_space   = part["free"]:0;
            y2milestone("Partition :%1", part_name );
            y2milestone("free:%1", free_space );
            found = true;
        }
        else
        {
            y2milestone("Partition :%1<->%2", part_name, compare_string);
        }
        }
    } );

    if (free_space >= min_space || Mode::test ())
    {
        return true;
    }
    else
    {
        // there is not enough space for the backup during update
        // inform the user about this (MB==megabytes)
        string message = sformat ( _("Minimum disk space of %1 MB required."), min_space);
        Popup::Message (message);
        return false;
    }
    };


    // Get information about available partitions
    list<map> partition = (list<map>)SpaceCalculation::GetPartitionInfo();
    y2milestone("evaluate partitions: %1", partition);

    // screen title for software selection
    string title = _("Backup System Before Update");

    // Build and show dialog

    Wizard::OpenAcceptDialog();

    term contents = `HVSquash(
                  `VBox(
                    `Left(`CheckBox(`id(`modified),`opt(`notify),
                            // checkbox label if user wants to backup modified files
                            _("Create &Backup of Modified Files"))),
                    `Left(`CheckBox(`id(`sysconfig),`opt(`notify),
                            // checkbox label if user wants to backup /etc/sysconfig
                            _("Create a &Complete Backup of /etc/sysconfig"))),
                    `VSpacing (1),
                    `Left(`CheckBox(`id(`remove),`opt(`notify),
                            // checkbox label if user wants remove old backup stuff
                            _("Remove &Old Backups from the Backup Directory")))
                    )
                  );

    // help text for backup dialog during update 1/7
    string help_text = _("<p>To avoid any loss of information during update,
it is possible to create a <b>backup</b> prior to updating.</p>
");

    // help text for backup dialog during update 2/7
    help_text = help_text + _("<p><b>Warning:</b> This will not be a complete
backup. Only modified files will be saved.</p>
");

    // help text for backup dialog during update 3/7
    help_text = help_text + _("<p>Select the desired options.</p>
");

    // help text for backup dialog during update 4/7
    help_text = help_text + _("<p><b>Create a Backup of Modified Files:</b>
Stores those modified files that are replaced during update.</p>
");

    // help text for backup dialog during update 5/7
    help_text = help_text + _("<p><b>Create a Complete Backup of
/etc/sysconfig:</b> This covers all configuration files that are part of the
sysconfig mechanism, even those that are not replaced.</p>
");

    // help text for backup dialog during update 6/7
    help_text = help_text + _("<p><b>Remove Old Backups from the Backup
Directory:</b> If your current system already is the result of an earlier
update, there may be old configuration file backups. Select this option to
remove them.</p>
");

    // help text for backup dialog during update 7/7
    help_text = help_text + sformat (_("<p>All backups are placed in %1.</p>"),
                     Update::backup_path);


    Wizard::SetContents (title, contents, help_text, (boolean) WFM::Args(0), (boolean) WFM::Args(1));

    UI::ChangeWidget (`id(`modified), `Value, Update::backup_modified);
    UI::ChangeWidget (`id(`sysconfig), `Value, Update::backup_sysconfig);
    UI::ChangeWidget (`id(`remove), `Value, Update::remove_old_backups);

    any ret = nil;

    while (true)
    {
    ret = Wizard::UserInput();

    if (ret == `abort && Popup::ConfirmAbort (`painless))
        break;

    if (ret == `cancel || ret == `back)
        break;

    // any backup wanted?
    boolean tmp = (boolean) UI::QueryWidget (`id(`modified), `Value) ||
        (boolean) UI::QueryWidget (`id(`sysconfig), `Value);

    if (ret == `next)
    {
        if (tmp && !check_backup_path (partition))
        continue;

        Update::backup_modified = (boolean) UI::QueryWidget (`id(`modified), `Value);
        Update::backup_sysconfig = (boolean) UI::QueryWidget (`id(`sysconfig), `Value);
        Update::remove_old_backups = (boolean) UI::QueryWidget (`id(`remove), `Value);

        break;
    }
    }

    Wizard::CloseDialog ();

    return ret;
}