old_contents: # Copyright (C) 2014-2016 Andrey Antukh <niwi@niwi.nz>
  # Copyright (C) 2014-2016 Jesús Espino <jespinog@gmail.com>
  # Copyright (C) 2014-2016 David Barragán <bameda@dbarragan.com>
  # Copyright (C) 2014-2016 Alejandro Alonso <alejandro.alonso@kaleidos.net>
  # This program is free software: you can redistribute it and/or modify
  # it under the terms of the GNU Affero General Public License as
  # published by the Free Software Foundation, either version 3 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 Affero General Public License for more details.
  #
  # You should have received a copy of the GNU Affero General Public License
  # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  
  from django.core.management.base import BaseCommand, CommandError
  
  from taiga.projects.models import Project
  from taiga.export_import.renderers import ExportRenderer
  from taiga.export_import.services import render_project
  
  
  import resource
  
  
  class Command(BaseCommand):
      args = '<project_slug project_slug ...>'
      help = 'Export a project to json'
      renderer_context = {"indent": 4}
      renderer = ExportRenderer()
  
      def handle(self, *args, **options):
          for project_slug in args:
              try:
                  project = Project.objects.get(slug=project_slug)
              except Project.DoesNotExist:
                  raise CommandError('Project "%s" does not exist' % project_slug)
  
              with open('%s.json'%(project_slug), 'w') as outfile:
                  render_project(project, outfile)
  
new_contents: # Copyright (C) 2014-2016 Andrey Antukh <niwi@niwi.nz>
  # Copyright (C) 2014-2016 Jesús Espino <jespinog@gmail.com>
  # Copyright (C) 2014-2016 David Barragán <bameda@dbarragan.com>
  # Copyright (C) 2014-2016 Alejandro Alonso <alejandro.alonso@kaleidos.net>
  # This program is free software: you can redistribute it and/or modify
  # it under the terms of the GNU Affero General Public License as
  # published by the Free Software Foundation, either version 3 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 Affero General Public License for more details.
  #
  # You should have received a copy of the GNU Affero General Public License
  # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  
  from django.core.management.base import BaseCommand, CommandError
  
  from taiga.projects.models import Project
  from taiga.export_import.services import render_project
  
  import os
  
  
  class Command(BaseCommand):
      help = "Export projects to json"
  
      def add_arguments(self, parser):
          parser.add_argument("project_slugs",
                              nargs="+",
                              help="<project_slug project_slug ...>")
  
          parser.add_argument("-d", "--dst_dir",
                              action="store",
                              dest="dst_dir",
                              default="./",
                              metavar="DIR",
                              help="Directory to save the json files. ('./' by default)")
  
      def handle(self, *args, **options):
          dst_dir = options["dst_dir"]
  
          if not os.path.exists(dst_dir):
              raise CommandError("Directory {} does not exist.".format(dst_dir))
  
          if not os.path.isdir(dst_dir):
              raise CommandError("'{}' must be a directory, not a file.".format(dst_dir))
  
          project_slugs = options["project_slugs"]
  
          for project_slug in project_slugs:
              try:
                  project = Project.objects.get(slug=project_slug)
              except Project.DoesNotExist:
                  raise CommandError("Project '{}' does not exist".format(project_slug))
  
              dst_file = os.path.join(dst_dir, "{}.json".format(project_slug))
              with open(src_file, "w") as f:
                  render_project(project, f)
  
              print("-> Generate dump of project '{}' in '{}'".format(project.name, src_file))
  
subject: Improve the command 'dump_project'