gramps/gramps2/src/plugins/WritePkg.py

#
# Gramps - a GTK+/GNOME based genealogy program
#
# Copyright (C) 2000-2006  Donald N. Allingham
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
#

# $Id$

"Export to GRAMPS package"

#-------------------------------------------------------------------------
#
# standard python modules
#
#-------------------------------------------------------------------------
import time
import os
import tarfile
from cStringIO import StringIO
from gettext import gettext as _

#-------------------------------------------------------------------------
#
# GNOME/GTK modules
#
#-------------------------------------------------------------------------
import gtk
import gtk.glade

#-------------------------------------------------------------------------
#
# GRAMPS modules
#
#-------------------------------------------------------------------------
from GrampsDb._WriteXML import XmlWriter
import Utils
from QuestionDialog import MissingMediaDialog

#-------------------------------------------------------------------------
#
# writeData
#
#-------------------------------------------------------------------------
def writeData(database,filename,person,callback=None):
    ret = 0
    try:
        writer = PackageWriter(database,filename)
        ret = writer.export()

    except:
        import DisplayTrace
        DisplayTrace.DisplayTrace()
    return ret
    
#-------------------------------------------------------------------------
#
# PackageWriter
#
#-------------------------------------------------------------------------
class PackageWriter:

    def __init__(self,database,filename):
        self.db = database

        if os.path.splitext(filename)[1] != ".gpkg":
            filename = filename + ".gpkg"

        self.filename = filename
            
    def export(self):
        missmedia_action = 0
        #--------------------------------------------------------------
        def remove_clicked():
            # File is lost => remove all references and the object itself
            for p_id in self.db.get_family_handles():
                p = self.db.get_family_from_handle(p_id)
                nl = p.get_media_list()
                for o in nl:
                    if o.get_reference_handle() == m_id:
                        nl.remove(o) 
                p.set_media_list(nl)
                self.db.commit_family(p,None)
            for key in self.db.get_person_handles(sort_handles=False):
                p = self.db.get_person_from_handle(key)
                nl = p.get_media_list()
                for o in nl:
                    if o.get_reference_handle() == m_id:
                        nl.remove(o) 
                p.set_media_list(nl)
                self.db.commit_person(p,None)
            for key in self.db.get_source_handles():
                p = self.db.get_source_from_handle(key)
                nl = p.get_media_list()
                for o in nl:
                    if o.get_reference_handle() == m_id:
                        nl.remove(o) 
                p.set_media_list(nl)
                self.db.commit_source(p,None)
            for key in self.db.get_place_handles():
                p = self.db.get_place_from_handle(key)
                nl = p.get_media_list()
                for o in nl:
                    if o.get_reference_handle() == m_id:
                        nl.remove(o) 
                p.set_media_list(nl)
                self.db.commit_place(p,None)
            for key in self.db.get_event_handles():
                p = self.db.get_event_from_handle(key)
                nl = p.get_media_list()
                for o in nl:
                    if o.get_reference_handle() == m_id:
                        nl.remove(o) 
                p.set_media_list(nl)
                self.db.commit_event(p,None)
            self.db.remove_object(m_id,None)

        def leave_clicked():
            # File is lost => do nothing, leave as is
            pass

        def select_clicked():
            # File is lost => select a file to replace the lost one
            def fs_close_window(obj):
                pass

            def fs_ok_clicked(obj):
                name = fs_top.get_filename()
                if os.path.isfile(name):
                    archive.add(name)

            fs_top = gtk.FileSelection("%s - GRAMPS" % _("Select file"))
            fs_top.hide_fileop_buttons()
            fs_top.ok_button.connect('clicked',fs_ok_clicked)
            fs_top.cancel_button.connect('clicked',fs_close_window)
            fs_top.run()
            fs_top.destroy()
        #---------------------------------------------------------------

        archive = tarfile.open(self.filename,'w:gz')
        
        # Write media files first, since the database may be modified 
        # during the process (i.e. when removing object)
        for m_id in self.db.get_media_object_handles():
            mobject = self.db.get_object_from_handle(m_id)
            filename = mobject.get_path()
            if os.path.isfile(filename):
                archive.add(filename)
            else:
                # File is lost => ask what to do
                if missmedia_action == 0:
                    mmd = MissingMediaDialog(
                        _("Media object could not be found"),
                        _("%(file_name)s is referenced in the database, "
                          "but no longer exists. The file may have been "
                          "deleted or moved to a different location. " 
                          "You may choose to either remove the reference "
                          "from the database, keep the reference to the "
                          "missing file, or select a new file."
                          ) % { 'file_name' : filename },
                        remove_clicked, leave_clicked, select_clicked)
                    missmedia_action = mmd.default_action
                elif missmedia_action == 1:
                    remove_clicked()
                elif missmedia_action == 2:
                    leave_clicked()
                elif missmedia_action == 3:
                    select_clicked()
        
        # Write XML now
        g = StringIO()
        gfile = XmlWriter(self.db,None,2)
        gfile.write_handle(g)
        tarinfo = tarfile.TarInfo('data.gramps')
        tarinfo.size = len(g.getvalue())
        tarinfo.mtime = time.time()
        tarinfo.uid = os.getuid()
        tarinfo.gid = os.getgid()
        g.seek(0)
        archive.addfile(tarinfo,g)
        archive.close()
        g.close()

        return 1
    
#-------------------------------------------------------------------------
#
# Register the plugin
#
#-------------------------------------------------------------------------
_title = _('GRAM_PS package (portable XML)')
_description = _('GRAMPS package is an archived XML database together with the media object files.')
_config = None
_filename = 'gpkg'

from PluginMgr import register_export
register_export(writeData,_title,_description,_config,_filename)